아타라 바이오테라퓨틱스, Inc.

소개

이 페이지에서는 Ciechanover Isaac E.의 공개된 내부자의 매매 거래 내역을 종합적으로 분석합니다. 내부자들은 기업의 임원(내부 경영진), 이사 또는 주요 투자자입니다. 일반적으로 내부자가 중요한 비공개 정보를 기반으로 자신이 속한 기업을 거래하는 것은 불법으로 간주됩니다. 이것은 내부자가 자신의 기업 내에서 행하는 모든 거래가 불법이라는 것을 뜻은 아닙니다. 그러나 그들은 자신들의 모든 거래를 양식 4를 통해 SEC에 보고해야만 합니다. 이러한 제한에도 불구하고, 학계 연구에 따르면 내부자는, 일반적으로, 자신의 회사 주식에 대한 실적이 시장의 수익률을 능가하는 경향성을 보였습니다.

평균 거래 수익성

평균 거래 수익성은 내부자가 지난 3년 동안 매입한 모든 "공개 시장"(Open market)에서의 매입의 평균 수익률입니다. 이를 계산하기 위해 10b5-1 거래 계획의 일부로 표시된 모든 거래를 제외하고 내부자가 계획되지 않은 모든 오픈 마켓에서의 매입을 조사합니다. 그런 다음 3개월, 6개월, 12개월 동안 해당 거래의 평균 성과를 계산하여 각 거래에 대한 최종 성과 지표를 생성합니다. 마지막으로 내부자에 대한 성과 지표를 계산하기 위해 모든 성과 지표의 평균을 내립니다. 이 목록에는 지난 2년 동안 최소 3번 이상 거래한 내부자만 포함됩니다.

내부자의 매매 거래 수익성이 "해당 없음"인 경우, 내부자는 지난 3년 동안 공개 시장에서 매수한 적이 없거나, 거래가 너무 최근에 이루어져서 신뢰할 수 있는 성과 지표를 산출할 수 없는 경우에 해당합니다.

업데이트 주기: 일별

최고 수익율의 내부자 목록을 확인하세요.

가장 높은 순위의 내부자를 확인하세요
내부자 포지션이 보고된 기업

SEC 서류에 따르면 Ciechanover Isaac E. 기업이 다음 기업에 대한 보유 또는 거래를 보고했습니다:

증권 소유권 최근 보고된 보유 주식
US:ATRA / Atara Biotherapeutics, Inc. Chief Executive Officer, Director 290,687
차트 해석 방법

아래 차트는 Ciechanover Isaac E.에 의한 각 "공개 시장"(Open market)에서 계획되지 않은 거래 이후 증권의 주가 실적을 보여줍니다. 계획되지 않은 거래는 10b5-1 거래 계획의 일환으로 이루어지지 않은 거래입니다. 주가 실적은 주가의 누적 백분율 변화로 표시됩니다. 예를 들어, 2019년 1월 1일 내부자의 매매 거래가 이루어졌을 경우, 차트는 현재까지 증권의 일별 백분율 변화를 보여줍니다. 이 기간 동안 주가가 10달러에서 15달러로 간다면, 주가의 누적 백분율 변화는 50%가 됩니다. 10달러에서 20달러로의 가격 변화는 100%가 되며, 10달러에서 5달러로의 가격 변화는 -50%가 됩니다.

궁극적으로 내부자의 매매 거래가 내부자의 정보를 이용하여 이익을 얻기 위해 거래 타이밍을 맞추고 있는지 확인하기 위해 내부자의 매매 거래가 주가의 초과 수익률(양 또는 음)과 얼마나 밀접한 상관 관계가 있는지 확인하고자 합니다. 내부자가 이러한 작업을 수행하고 있는 상황을 고려해 보겠습니다. 이러한 상황에서 우리는 (a) 매입 후 양의 수익률 또는 (b) 매각 후 음의 수익률을 기대할 수 있습니다. (a)의 경우, 매입 차트는 상향으로 기울어진 일련의 곡선을 보여주며, 각 매입 거래 후 양의 수익률을 나타냅니다. (b)의 경우, SALE 차트는 하향으로 기울어진 일련의 곡선을 보여주며, 각 판매 거래 후 음의 수익률을 나타냅니다.

그러나 이것만으로는 결론을 도출하기에 충분하지 않습니다. 예를 들어, 해당 기업의 주가가 수년에 걸쳐 비주기적 상승 추세에 있다면, Fintel은 매입 후 도표가 모두 상향 곡선으로 예상할 수 있습니다. 마찬가지로, 수년에 걸쳐 비주기적 하락은 거래 후에 하향 곡선으로 초래할 가능성이 높습니다. 이 도표들 중 어느 것도 내부자의 매매 거래 활동을 시사하지는 않습니다.

가장 강력한 지표는 주가가 극단적으로 순환하는 상황일 것이고, PURCHASE 차트에는 긍정적인 시그널이, SALE 차트에는 부정적인 플롯이 존재했습니다. 이는 자신들의 금전적 이익을 위한 거래 타이밍을 재던 내부자에 의한 상황일 가능성이 높습니다.

내부자 매입 ATRA / Atara Biotherapeutics, Inc.: 단기 이익 분석

이 섹션에서는 ATRA / Atara Biotherapeutics, Inc.에 대한 "공개 시장"(Open market)에서 계획되지 않은 내부자의 매입이 발생한 모든 상품의 수익성을 분석합니다. 이 분석은 내부자가 지속적으로 비정상적인 수익을 창출하는지 이해하는 데 도움이 되며, 이를 따를 가치가 있습니다. 이 분석은 각 거래 후 1년 동안 수행되며, 결과는 이론 값입니다.

아래 표는 사전 거래 계획(Automated trading plan)에 포함되지 않은 가장 최근의 공개 시장 매입을 보여줍니다.

거래일 티커 내부자 보고된
지분		 보고된
가격		 조정된
지분		 조정된
가격		 가격 기준 최고까지
일수		 최고
가격		 최고
이익 ($)		 최고 수익률 (%)
이 내부자와 유가 증권의 조합과 관련하여 계획되지 않은 공개된 "공개 시장"(Open market) 거래는 없습니다.

조정 가격은 분할 조정된 가격입니다. 조정된 주식은 조정된 지분입니다.

ATRA / Atara Biotherapeutics, Inc. Insider Trades
내부자 매매 ATRA / Atara Biotherapeutics, Inc.: 단기 손실 분석

이 섹션에서는 ATRA / Atara Biotherapeutics, Inc.에서 이루어진 계획되지 않은 모든 공개 시장에서의 내부자 매도의 단기 손실 회피를 분석합니다. 일관된 손실 회피 패턴은 향후 매각 거래에서 가격 하락이 발생할 수도 있다는 것을 예측할 수 있습니다. 이 분석은 각 거래 후 1년을 대상으로 한 것이며, 결과는 이론 값입니다.

아래 표는 자동 거래 계획에 포함되지 않은 가장 최근의 "공개 시장"(Open market) 매매를 보여줍니다.

거래일 티커 내부자 보고된
지분		 보고된
가격		 조정된
지분		 조정된
가격		 가격 기준 최저까지
일수		 최저에서
가격		 회피된
최대 손실($)		 회피된
최대 손실율(%)
이 내부자와 유가 증권의 조합과 관련하여 계획되지 않은 공개된 "공개 시장"(Open market) 거래는 없습니다.

조정 가격은 분할 조정된 가격입니다. 조정된 주식은 조정된 지분입니다.

ATRA / Atara Biotherapeutics, Inc. Insider Trades
내부자의 매매 거래 내역

아래 표는 증권거래위원회(SEC)에 공시된 Ciechanover Isaac E.의 내부자의 전체 거래 목록입니다.

보고일 거래일 보고 티커 증권 코드 10b5-1 지분 잔여 지분 변동률
(%)		 지분
가치		 거래
가치		 잔여
가치
2019-05-31 2019-05-30 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,500 290,687 -0.51 23.70 -35,550 6,889,282
2019-05-31 2019-05-30 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,425 292,187 -0.49 22.72 -32,376 6,638,489
2019-05-31 2019-05-29 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -725 293,612 -0.25 23.30 -16,892 6,841,160
2019-05-31 2019-05-29 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,200 294,337 -0.74 22.85 -50,270 6,725,600
2019-05-15 2019-05-14 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,900 296,537 -1.30 24.92 -97,188 7,389,702
2019-05-15 2019-05-13 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -400 300,437 -0.13 24.95 -9,980 7,495,903
2019-05-15 2019-05-13 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,500 300,837 -1.15 24.23 -84,805 7,289,281
2019-04-29 2019-04-26 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,900 304,337 -1.27 33.47 -130,533 10,186,159
2019-04-29 2019-04-25 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -300 308,237 -0.10 33.99 -10,197 10,476,976
2019-04-29 2019-04-25 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,600 308,537 -1.15 33.57 -120,852 10,357,587
2019-04-12 2019-04-11 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,900 312,137 -1.23 36.27 -141,453 11,321,209
2019-04-12 2019-04-10 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,900 316,037 -1.22 37.04 -144,456 11,706,010
2019-04-01 2019-03-29 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -200 319,937 -0.06 41.70 -8,340 13,341,373
2019-04-01 2019-03-29 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,700 320,137 -1.14 39.81 -147,297 12,744,654
2019-04-01 2019-03-28 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -300 323,837 -0.09 38.59 -11,577 12,496,870
2019-04-01 2019-03-28 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,600 324,137 -0.49 38.02 -60,832 12,323,689
2019-04-01 2019-03-28 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,000 325,737 -0.61 36.75 -73,500 11,970,835
2019-03-18 2019-03-15 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,900 327,737 -1.18 38.73 -151,047 12,693,254
2019-03-18 2019-03-14 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,200 331,637 -0.96 40.48 -129,536 13,424,666
2019-03-18 2019-03-14 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -700 334,837 -0.21 39.10 -27,370 13,092,127
2019-03-01 2019-02-28 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,900 335,537 -1.15 36.13 -140,907 12,122,952
2019-03-01 2019-02-27 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,700 339,437 -1.08 36.20 -133,940 12,287,619
2019-03-01 2019-02-27 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -200 343,137 -0.06 35.22 -7,044 12,085,285
2019-02-19 2019-02-15 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		F - Taxes -1,176 332,243 -0.35 40.45 -47,569 13,439,229
2019-02-12 2019-02-12 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,900 342,138 -1.13 39.01 -152,139 13,346,803
2019-02-12 2019-02-11 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,900 346,038 -1.11 38.52 -150,228 13,329,384
2019-02-12 2019-02-09 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		F - Taxes -20,324 334,618 -5.73 38.49 -782,271 12,879,447
2019-02-12 2019-02-06 4/A ATRA Atara Biotherapeutics, Inc.
Common Stock 		F - Taxes -24,683 375,611 -6.17 38.47 -949,555 14,449,755
2019-02-08 2019-02-06 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		F - Taxes -24,683 375,611 -6.17
2019-01-25 2019-01-24 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -430 296,452 -0.14 35.82 -15,403 10,618,911
2019-01-25 2019-01-24 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,470 296,882 -1.16 34.98 -121,381 10,384,932
2019-01-25 2019-01-23 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -100 300,352 -0.03 36.58 -3,658 10,986,876
2019-01-25 2019-01-23 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -800 300,452 -0.27 35.59 -28,472 10,693,087
2019-01-25 2019-01-23 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,000 301,252 -0.99 34.84 -104,520 10,495,620
2019-01-10 2019-01-10 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,200 4,078 -35.04 34.50 -75,900 140,691
2019-01-10 2019-01-10 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,700 6,278 -21.31 33.93 -57,681 213,013
2019-01-10 2019-01-09 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,000 7,978 -20.04 35.16 -70,320 280,506
2019-01-10 2019-01-09 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,900 9,978 -16.00 34.51 -65,569 344,341
2018-12-28 2018-12-28 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -500 11,878 -4.04 35.40 -17,700 420,481
2018-12-28 2018-12-28 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,400 12,378 -21.55 34.60 -117,640 428,279
2018-12-28 2018-12-27 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -653 15,778 -3.97 34.19 -22,326 539,450
2018-12-28 2018-12-27 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,247 16,431 -16.50 32.82 -106,567 539,265
2018-12-13 2018-12-13 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,900 19,678 -16.54 42.75 -166,725 841,234
2018-12-13 2018-12-12 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,900 23,578 -14.19 42.56 -165,984 1,003,480
2018-11-29 2018-11-29 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,500 27,478 -8.34 42.26 -105,650 1,161,220
2018-11-29 2018-11-29 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,400 29,978 -4.46 41.13 -57,582 1,232,995
2018-11-29 2018-11-28 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,200 31,378 -3.68 39.54 -47,448 1,240,686
2018-11-29 2018-11-28 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,700 32,578 -7.65 38.65 -104,355 1,259,140
2018-11-15 2018-11-15 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,800 35,278 -7.35 35.49 -99,372 1,252,016
2018-11-15 2018-11-15 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,100 38,078 -2.81 34.67 -38,137 1,320,164
2018-11-15 2018-11-14 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -600 39,178 -1.51 34.51 -20,706 1,352,033
2018-11-15 2018-11-14 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,300 39,778 -7.66 33.89 -111,837 1,348,076
2018-10-23 2018-10-23 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -800 43,078 -1.82 35.18 -28,144 1,515,484
2018-10-23 2018-10-23 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,700 43,878 -3.73 34.39 -58,463 1,508,964
2018-10-23 2018-10-23 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,400 45,578 -2.98 33.17 -46,438 1,511,822
2018-10-23 2018-10-22 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -795 46,978 -1.66 34.26 -27,237 1,609,466
2018-10-23 2018-10-22 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,105 47,773 -6.10 33.66 -104,514 1,608,039
2018-10-05 2018-10-05 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -100 50,878 -0.20 41.00 -4,100 2,085,998
2018-10-05 2018-10-05 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,900 50,978 -3.59 40.25 -76,475 2,051,864
2018-10-05 2018-10-05 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,900 52,878 -3.47 39.58 -75,202 2,092,911
2018-10-05 2018-10-04 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,300 54,778 -2.32 41.34 -53,742 2,264,523
2018-10-05 2018-10-04 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,600 56,078 -4.43 40.09 -104,234 2,248,167
2018-09-25 2018-09-22 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		F - Taxes -79,328 733,285 -9.76 39.85 -3,161,221 29,221,407
2018-09-20 2018-09-19 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,900 58,678 -6.23 39.99 -155,961 2,346,533
2018-09-20 2018-09-18 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,900 62,578 -5.87 39.62 -154,518 2,479,340
2018-09-10 2018-09-07 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,827 66,478 -2.67 40.23 -73,500 2,674,410
2018-09-10 2018-09-07 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,073 68,305 -2.95 39.74 -82,381 2,714,441
2018-09-10 2018-09-06 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,120 70,378 -1.57 39.42 -44,150 2,774,301
2018-09-10 2018-09-06 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,780 71,498 -3.74 38.45 -106,891 2,749,098
2018-08-22 2018-08-21 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,900 74,278 -4.99 36.69 -143,091 2,725,260
2018-08-22 2018-08-20 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,900 78,178 -4.75 36.04 -140,556 2,817,535
2018-08-07 2018-08-07 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -300 82,078 -0.36 37.75 -11,325 3,098,444
2018-08-07 2018-08-07 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,600 82,378 -4.19 37.35 -134,460 3,076,818
2018-08-07 2018-08-06 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,900 85,978 -4.34 37.48 -146,172 3,222,455
2018-07-30 2018-07-27 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,700 89,878 -1.86 37.53 -63,801 3,373,121
2018-07-30 2018-07-27 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,200 91,578 -2.35 36.55 -80,410 3,347,176
2018-07-30 2018-07-26 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -100 93,778 -0.11 39.45 -3,945 3,699,542
2018-07-30 2018-07-26 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,800 93,878 -3.89 39.02 -148,276 3,663,120
2018-07-11 2018-07-10 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -6,100 97,678 -5.88 40.54 -247,294 3,959,866
2018-07-11 2018-07-10 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -22,300 103,778 -17.69 39.93 -890,439 4,143,856
2018-07-11 2018-07-09 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,141 126,078 -1.67 40.63 -86,989 5,122,549
2018-07-11 2018-07-09 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -27,859 128,219 -17.85 39.88 -1,111,017 5,113,374
2018-06-27 2018-06-27 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -500 156,078 -0.32 39.40 -19,700 6,149,473
2018-06-27 2018-06-27 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,500 156,578 -0.95 37.57 -56,355 5,882,635
2018-06-27 2018-06-26 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,700 158,078 -1.06 40.79 -69,343 6,448,002
2018-06-27 2018-06-26 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,700 159,778 -1.66 40.01 -108,027 6,392,718
2018-06-06 2018-06-06 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,000 162,478 -0.61 48.59 -48,590 7,894,806
2018-06-06 2018-06-06 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,500 163,478 -0.91 47.69 -71,535 7,796,266
2018-06-06 2018-06-06 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,900 164,978 -1.14 46.53 -88,407 7,676,426
2018-06-06 2018-06-05 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,200 166,878 -0.71 50.27 -60,324 8,388,957
2018-06-06 2018-06-05 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,200 168,078 -1.87 49.51 -158,432 8,321,542
2018-05-22 2018-05-22 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -4,400 171,278 -2.50 50.88 -223,872 8,714,625
2018-05-22 2018-05-21 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -900 175,678 -0.51 53.64 -48,276 9,423,368
2018-05-22 2018-05-21 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,000 176,578 -1.12 52.83 -105,660 9,328,616
2018-05-22 2018-05-21 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,500 178,578 -0.83 51.67 -77,505 9,227,125
2018-05-10 2018-05-10 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,200 180,078 -1.21 40.98 -90,156 7,379,596
2018-05-10 2018-05-10 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,200 182,278 -1.19 40.08 -88,176 7,305,702
2018-05-10 2018-05-09 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,100 184,478 -1.65 39.50 -122,450 7,286,881
2018-05-10 2018-05-09 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,300 187,578 -0.69 38.35 -49,855 7,193,616
2018-04-30 2018-04-27 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -500 188,878 -0.26 43.95 -21,975 8,301,188
2018-04-30 2018-04-27 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,900 189,378 -2.02 42.63 -166,257 8,073,184
2018-04-30 2018-04-26 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,100 193,278 -0.57 42.60 -46,860 8,233,643
2018-04-30 2018-04-26 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,300 194,378 -1.67 41.99 -138,567 8,161,932
2018-04-12 2018-04-12 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,200 197,678 -0.60 43.69 -52,428 8,636,552
2018-04-12 2018-04-12 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,200 198,878 -1.58 42.63 -136,416 8,478,169
2018-04-12 2018-04-11 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -400 202,078 -0.20 41.37 -16,548 8,359,967
2018-04-12 2018-04-11 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -4,000 202,478 -1.94 40.77 -163,080 8,255,028
2018-04-03 2018-03-27 4/A ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -200 206,478 -0.10 38.40 -7,680 7,928,755
2018-03-27 2018-03-27 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -200 206,478 -0.10 38.40 -7,680 7,928,755
2018-03-27 2018-03-27 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,500 206,678 -0.72 37.68 -56,520 7,787,627
2018-03-27 2018-03-27 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,700 208,178 -1.28 36.63 -98,901 7,625,560
2018-03-27 2018-03-26 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,200 210,878 -0.57 41.12 -49,344 8,671,303
2018-03-27 2018-03-26 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,200 212,078 -1.49 39.72 -127,104 8,423,738
2018-03-19 2018-03-16 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,300 215,278 -0.60 42.59 -55,367 9,168,690
2018-03-19 2018-03-16 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,100 216,578 -1.41 41.75 -129,425 9,042,132
2018-03-19 2018-03-15 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,600 219,678 -0.72 42.95 -68,720 9,435,170
2018-03-19 2018-03-15 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,800 221,278 -1.25 41.87 -117,236 9,264,910
2018-03-14 2018-03-12 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -300 224,078 -0.13 46.65 -13,995 10,453,239
2018-03-14 2018-03-12 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -700 224,378 -0.31 46.17 -32,319 10,359,532
2018-02-22 2018-02-22 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,400 225,078 -0.62 45.00 -63,000 10,128,510
2018-02-22 2018-02-22 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,600 226,478 -0.70 44.03 -70,448 9,971,826
2018-02-22 2018-02-22 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,600 228,078 -0.70 42.74 -68,384 9,748,054
2018-02-22 2018-02-21 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,911 229,678 -1.25 44.55 -129,685 10,232,155
2018-02-22 2018-02-21 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,589 232,589 -0.68 43.60 -69,280 10,140,880
2018-02-22 2018-02-20 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -8,700 234,178 -3.58 45.28 -393,936 10,603,580
2018-02-20 2018-02-16 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -300 242,878 -0.12 48.43 -14,529 11,762,582
2018-02-20 2018-02-16 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -5,100 243,178 -2.05 47.91 -244,341 11,650,658
2018-02-20 2018-02-16 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,600 248,278 -0.64 46.55 -74,480 11,557,341
2018-02-20 2018-02-16 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,000 249,878 -1.19 45.44 -136,320 11,354,456
2018-02-20 2018-02-15 4 ATRA Atara Biotherapeutics, Inc.
Restricted Stock Units 		M - Exercise -3,938 0 -100.00
2018-02-20 2018-02-15 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		M - Exercise 3,938 812,613 0.49
2018-02-20 2018-02-15 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -300 252,878 -0.12 48.25 -14,475 12,201,364
2018-02-20 2018-02-15 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -4,767 253,178 -1.85 47.56 -226,719 12,041,146
2018-02-20 2018-02-15 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,433 257,945 -0.93 46.71 -113,645 12,048,611
2018-02-20 2018-02-15 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,500 260,378 -0.95 45.58 -113,950 11,868,029
2018-02-14 2018-02-14 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,100 262,878 -1.17 49.25 -152,675 12,946,742
2018-02-14 2018-02-14 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -5,800 265,978 -2.13 48.42 -280,836 12,878,655
2018-02-14 2018-02-14 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,000 271,778 -0.37 46.94 -46,940 12,757,259
2018-02-14 2018-02-14 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -100 272,778 -0.04 45.05 -4,505 12,288,649
2018-02-14 2018-02-13 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -10,000 272,878 -3.54 45.10 -451,000 12,306,798
2018-02-12 2018-02-09 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -300 282,878 -0.11 41.70 -12,510 11,796,013
2018-02-12 2018-02-09 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -400 283,178 -0.14 40.79 -16,316 11,550,831
2018-02-12 2018-02-09 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -400 283,578 -0.14 38.68 -15,472 10,968,797
2018-02-12 2018-02-09 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,100 283,978 -0.39 37.43 -41,173 10,629,297
2018-02-12 2018-02-09 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,200 285,078 -0.77 36.59 -80,498 10,431,004
2018-02-12 2018-02-08 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -4,400 287,278 -1.51 37.15 -163,460 10,672,378
2018-02-08 2018-02-06 4 ATRA Atara Biotherapeutics, Inc.
Employee Stock Option (Right to Buy) 		A - Award 130,000 130,000
2018-02-08 2018-02-06 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		A - Award 65,000 808,675 8.74
2018-01-29 2018-01-26 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,100 291,678 -0.71 36.98 -77,658 10,786,252
2018-01-29 2018-01-26 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -6,100 293,778 -2.03 36.54 -222,894 10,734,648
2018-01-29 2018-01-26 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,100 299,878 -0.37 35.46 -39,006 10,633,674
2018-01-29 2018-01-25 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -200 300,978 -0.07 34.68 -6,936 10,437,917
2018-01-29 2018-01-25 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -8,400 301,178 -2.71 34.23 -287,532 10,309,323
2018-01-29 2018-01-25 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,400 309,578 -0.45 33.22 -46,508 10,284,181
2018-01-24 2018-01-24 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,200 310,978 -0.70 34.99 -76,978 10,881,120
2018-01-24 2018-01-24 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -4,100 313,178 -1.29 34.40 -141,040 10,773,323
2018-01-24 2018-01-24 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -8,100 317,278 -2.49 33.20 -268,920 10,533,630
2018-01-24 2018-01-23 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -8,516 325,378 -2.55 36.15 -307,853 11,762,415
2018-01-24 2018-01-23 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -15,084 333,894 -4.32 35.45 -534,728 11,836,542
2018-01-24 2018-01-23 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -500 348,978 -0.14 34.05 -17,025 11,882,701
2018-01-24 2018-01-22 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,000 349,478 -0.57 34.04 -68,080 11,896,231
2018-01-24 2018-01-22 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -6,500 351,478 -1.82 33.08 -215,020 11,626,892
2018-01-24 2018-01-22 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,000 357,978 -0.28 32.17 -32,170 11,516,152
2018-01-24 2018-01-22 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -500 358,978 -0.14 30.93 -15,465 11,103,190
2018-01-18 2018-01-16 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -600 359,478 -0.17 30.38 -18,228 10,920,942
2018-01-12 2018-01-12 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -100 360,078 -0.03 30.05 -3,005 10,820,344
2018-01-12 2018-01-11 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -17,500 360,178 -4.63 22.01 -385,175 7,927,518
2018-01-12 2018-01-11 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,500 377,678 -0.66 21.49 -53,725 8,116,300
2018-01-12 2018-01-10 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -4,100 380,178 -1.07 20.38 -83,558 7,748,028
2018-01-12 2018-01-10 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -4,500 384,278 -1.16 19.64 -88,380 7,547,220
2018-01-02 2017-12-29 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,700 388,778 -0.69 20.28 -54,756 7,884,418
2018-01-02 2017-12-29 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,900 391,478 -0.74 19.04 -55,216 7,453,741
2018-01-02 2017-12-29 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -14,400 394,378 -3.52 18.24 -262,656 7,193,455
2018-01-02 2017-12-28 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,200 408,778 -0.54 15.15 -33,330 6,192,987
2017-12-14 2017-12-13 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,200 410,978 -0.53 14.73 -32,406 6,053,706
2017-12-14 2017-12-12 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,200 413,178 -0.53 14.56 -32,032 6,015,872
2017-12-01 2017-11-30 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,200 415,378 -0.53 14.40 -31,680 5,981,443
2017-12-01 2017-11-29 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,200 417,578 -0.52 14.09 -30,998 5,883,674
2017-11-17 2017-11-15 4 ATRA Atara Biotherapeutics, Inc.
Restricted Stock Units 		M - Exercise -5,908 3,938 -60.00
2017-11-17 2017-11-15 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		M - Exercise 5,908 743,675 0.80
2017-11-14 2017-11-14 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,200 419,778 -0.52 13.41 -29,502 5,629,223
2017-11-14 2017-11-13 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,200 421,978 -0.52 13.53 -29,766 5,709,362
2017-10-30 2017-10-27 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,200 424,178 -0.52 13.60 -29,920 5,768,821
2017-10-30 2017-10-26 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,200 426,378 -0.51 13.57 -29,854 5,785,949
2017-10-12 2017-10-12 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,200 428,578 -0.51 14.78 -32,516 6,334,383
2017-10-12 2017-10-11 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,200 430,778 -0.51 15.25 -33,550 6,569,364
2017-09-21 2017-09-20 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,200 432,978 -0.51 15.56 -34,232 6,737,138
2017-09-21 2017-09-19 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,200 435,178 -0.50 15.51 -34,122 6,749,611
2017-09-08 2017-09-07 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,200 437,378 -0.50 14.98 -32,956 6,551,922
2017-09-08 2017-09-06 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,200 439,578 -0.50 15.05 -33,110 6,615,649
2017-08-24 2017-08-23 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,200 441,778 -0.50 13.51 -29,722 5,968,421
2017-08-24 2017-08-22 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,200 443,978 -0.49 13.56 -29,832 6,020,342
2017-08-17 2017-08-15 4 ATRA Atara Biotherapeutics, Inc.
Restricted Stock Units 		M - Exercise -5,908 9,846 -37.50
2017-08-17 2017-08-15 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		M - Exercise 5,908 737,767 0.81
2017-08-14 2017-08-11 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,200 446,178 -0.49 14.58 -32,076 6,505,275
2017-08-14 2017-08-10 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,200 448,378 -0.49 14.75 -32,450 6,613,576
2017-07-26 2017-07-25 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -200 450,578 -0.04 16.79 -3,358 7,565,205
2017-07-26 2017-07-25 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,500 450,778 -0.55 15.97 -39,925 7,198,925
2017-07-26 2017-07-24 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -300 453,278 -0.07 17.32 -5,196 7,850,775
2017-07-26 2017-07-24 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,500 453,578 -0.55 16.89 -42,225 7,660,932
2017-05-31 2017-05-31 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,450 456,078 -0.75 13.26 -45,747 6,047,594
2017-05-31 2017-05-30 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,450 459,528 -0.75 13.44 -46,368 6,176,056
2017-05-19 2017-05-18 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,400 462,978 -0.52 14.94 -35,856 6,916,891
2017-05-19 2017-05-17 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,400 465,378 -0.51 14.88 -35,712 6,924,825
2017-05-17 2017-05-15 4 ATRA Atara Biotherapeutics, Inc.
Restricted Stock Units 		M - Exercise -5,908 15,754 -27.27
2017-05-17 2017-05-15 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		M - Exercise 5,908 731,859 0.81
2017-04-26 2017-04-26 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,600 467,778 -0.76 17.78 -64,008 8,317,093
2017-04-26 2017-04-25 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,500 471,378 -0.32 17.70 -26,550 8,343,391
2017-04-26 2017-04-25 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,100 472,878 -0.44 17.07 -35,847 8,072,027
2017-04-12 2017-04-11 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -4,200 474,978 -0.88 16.99 -71,358 8,069,876
2017-04-12 2017-04-10 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,000 479,178 -0.62 17.08 -51,240 8,184,360
2017-03-28 2017-03-28 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -418 482,178 -0.09 19.86 -8,301 9,576,055
2017-03-28 2017-03-28 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,182 482,596 -0.66 18.99 -60,426 9,164,498
2017-03-28 2017-03-27 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -12,400 485,778 -2.49 20.34 -252,216 9,880,725
2017-03-20 2017-03-17 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -17,600 498,178 -3.41 20.01 -352,176 9,968,542
2017-03-20 2017-03-17 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,400 515,778 -0.46 18.50 -44,400 9,541,893
2017-03-20 2017-03-16 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -10,800 518,178 -2.04 18.54 -200,232 9,607,020
2017-02-16 2017-02-16 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,400 348,978 -0.68 15.57 -37,368 5,433,587
2017-02-16 2017-02-15 4 ATRA Atara Biotherapeutics, Inc.
Restricted Stock Units 		M - Exercise -5,907 21,662 -21.43
2017-02-16 2017-02-15 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,400 351,378 -0.68 15.54 -37,296 5,460,414
2017-02-16 2017-02-15 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		M - Exercise 5,907 725,951 0.82
2017-02-08 2017-02-06 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		A - Award 165,000 720,044 29.73
2017-02-06 2017-02-03 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,400 353,778 -0.67 13.87 -33,288 4,906,901
2017-02-06 2017-02-02 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,400 356,178 -0.67 13.45 -32,280 4,790,594
2017-01-19 2017-01-18 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,400 358,578 -0.66 14.47 -34,728 5,188,624
2017-01-19 2017-01-17 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,600 360,978 -0.99 14.08 -50,688 5,082,570
2017-01-09 2017-01-06 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -6,000 364,578 -1.62 17.10 -102,600 6,234,284
2017-01-09 2017-01-05 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,400 370,578 -0.64 16.36 -39,264 6,062,656
2016-12-23 2016-12-23 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,400 372,978 -0.64 15.25 -36,600 5,687,914
2016-12-23 2016-12-22 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -100 375,378 -0.03 15.82 -1,582 5,938,480
2016-12-23 2016-12-22 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,300 375,478 -0.61 15.17 -34,891 5,696,001
2016-12-08 2016-12-07 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,600 377,778 -0.94 17.30 -62,280 6,535,559
2016-12-08 2016-12-06 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,600 381,378 -0.94 18.55 -66,780 7,074,562
2016-11-23 2016-11-23 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,100 384,978 -0.28 19.22 -21,142 7,399,277
2016-11-23 2016-11-23 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,500 386,078 -0.64 18.40 -46,000 7,103,835
2016-11-23 2016-11-22 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -8,400 388,578 -2.12 18.21 -152,964 7,076,005
2016-11-17 2016-11-15 4 ATRA Atara Biotherapeutics, Inc.
Restricted Stock Units 		M - Exercise -5,908 27,569 -17.65
2016-11-17 2016-11-15 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		M - Exercise 5,908 555,044 1.08
2016-10-28 2016-10-27 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,400 396,978 -0.60 13.70 -32,880 5,438,599
2016-10-28 2016-10-26 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,400 399,378 -0.60 13.91 -33,384 5,555,348
2016-10-17 2016-10-14 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,400 401,778 -0.59 16.01 -38,424 6,432,466
2016-10-17 2016-10-13 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,400 404,178 -0.59 15.91 -38,184 6,430,472
2016-09-29 2016-09-28 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -300 406,578 -0.07 21.82 -6,546 8,871,532
2016-09-29 2016-09-28 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -4,500 406,878 -1.09 21.40 -96,300 8,707,189
2016-09-29 2016-09-27 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -7,200 411,378 -1.72 20.50 -147,600 8,433,249
2016-09-23 2016-09-22 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		A - Award 320,000 549,136 139.66
2016-09-19 2016-09-16 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,600 418,578 -0.85 19.32 -69,552 8,086,927
2016-09-19 2016-09-15 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,600 422,178 -0.85 19.39 -69,804 8,186,031
2016-08-23 2016-08-23 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -4,800 425,778 -1.11 22.08 -105,984 9,401,178
2016-08-23 2016-08-22 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -4,800 430,578 -1.10 22.58 -108,384 9,722,451
2016-08-17 2016-08-15 4 ATRA Atara Biotherapeutics, Inc.
Restricted Stock Units 		M - Exercise -5,908 33,477 -15.00
2016-08-17 2016-08-15 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		M - Exercise 5,908 229,136 2.65
2016-08-17 2016-07-13 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		G - Gift -330,957 0 -100.00
2016-07-21 2016-07-21 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -4,800 315,511 -1.50 22.22 -106,656 7,010,654
2016-07-21 2016-07-20 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -4,800 320,311 -1.48 21.99 -105,552 7,043,639
2016-07-11 2016-07-08 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -4,800 325,111 -1.45 22.96 -110,208 7,464,549
2016-07-11 2016-07-07 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -4,800 329,911 -1.43 22.80 -109,440 7,521,971
2016-06-27 2016-06-24 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -4,800 334,711 -1.41 21.32 -102,336 7,136,039
2016-06-27 2016-06-23 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -4,800 339,511 -1.39 21.19 -101,712 7,194,238
2016-06-08 2016-06-08 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -4,800 344,311 -1.37 20.79 -99,792 7,158,226
2016-06-08 2016-06-07 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,200 349,111 -0.34 20.90 -25,080 7,296,420
2016-06-08 2016-06-07 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -6,000 350,311 -1.68 20.25 -121,500 7,093,798
2016-05-27 2016-05-26 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,600 356,311 -1.00 17.35 -62,460 6,181,996
2016-05-27 2016-05-25 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -3,600 359,911 -0.99 18.03 -64,908 6,489,195
2016-05-18 2016-05-16 4 ATRA Atara Biotherapeutics, Inc.
Restricted Stock Units 		M - Exercise -5,907 39,385 -13.04
2016-05-18 2016-05-16 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		M - Exercise 5,907 223,228 2.72
2016-04-26 2016-04-26 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -100 363,511 -0.03 20.15 -2,015 7,324,747
2016-04-26 2016-04-25 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,200 363,611 -0.33 20.12 -24,144 7,315,853
2016-04-13 2016-04-12 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,200 364,811 -0.33 20.20 -24,240 7,369,182
2016-04-13 2016-04-11 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -12,010 366,011 -3.18 20.42 -245,244 7,473,945
2016-04-04 2016-04-01 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -890 378,021 -0.23 20.04 -17,836 7,575,541
2016-04-04 2016-03-31 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -300 378,911 -0.08 20.01 -6,003 7,582,009
2016-02-18 2016-02-16 4 ATRA Atara Biotherapeutics, Inc.
Restricted Stock Units 		M - Exercise -5,908 45,292 -11.54
2016-02-18 2016-02-16 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		M - Exercise 5,908 217,321 2.79
2016-02-11 2016-02-09 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		A - Award 163,973 211,413 345.64
2016-01-15 2016-01-14 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,200 379,211 -0.32 20.07 -24,084 7,610,765
2016-01-15 2016-01-13 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,200 380,411 -0.31 20.32 -24,384 7,729,952
2016-01-04 2015-12-31 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -800 381,611 -0.21 27.17 -21,736 10,368,371
2016-01-04 2015-12-31 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -400 382,411 -0.10 26.00 -10,400 9,942,686
2016-01-04 2015-12-30 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,200 382,811 -0.31 25.21 -30,252 9,650,665
2015-12-21 2015-12-17 4 ATRA Atara Biotherapeutics, Inc.
Employee Stock Option (Right to Buy) 		A - Award 220,000 220,000
2015-12-16 2015-12-15 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -200 384,011 -0.05 22.21 -4,442 8,528,884
2015-12-16 2015-12-15 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -700 384,211 -0.18 21.55 -15,085 8,279,747
2015-12-16 2015-12-15 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -300 384,911 -0.08 20.69 -6,207 7,963,809
2015-12-16 2015-12-14 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -100 385,211 -0.03 25.84 -2,584 9,953,852
2015-12-16 2015-12-14 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -400 385,311 -0.10 24.93 -9,972 9,605,803
2015-12-16 2015-12-14 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -300 385,711 -0.08 23.34 -7,002 9,002,495
2015-12-16 2015-12-14 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -400 386,011 -0.10 21.54 -8,616 8,314,677
2015-12-07 2015-12-04 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,200 386,411 -0.31 37.93 -45,516 14,656,569
2015-12-07 2015-12-04 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -800 387,611 -0.21 36.99 -29,592 14,337,731
2015-12-07 2015-12-03 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -600 388,411 -0.15 38.54 -23,124 14,969,360
2015-12-07 2015-12-03 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -700 389,011 -0.18 37.43 -26,201 14,560,682
2015-12-07 2015-12-03 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -700 389,711 -0.18 36.21 -25,347 14,111,435
2015-11-25 2015-11-24 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -200 390,411 -0.05 36.71 -7,342 14,331,988
2015-11-25 2015-11-24 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -900 390,611 -0.23 35.80 -32,220 13,983,874
2015-11-25 2015-11-24 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -900 391,511 -0.23 34.81 -31,329 13,628,498
2015-11-25 2015-11-23 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,800 392,411 -0.71 34.74 -97,272 13,632,358
2015-11-18 2015-11-16 4 ATRA Atara Biotherapeutics, Inc.
Restricted Stock Units 		M - Exercise -5,908 51,200 -10.35
2015-11-18 2015-11-16 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		M - Exercise 5,908 47,440 14.23
2015-10-23 2015-10-22 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -200 395,211 -0.05 25.36 -5,072 10,022,551
2015-10-23 2015-10-22 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,000 395,411 -0.25 24.36 -24,360 9,632,212
2015-10-23 2015-10-21 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -600 396,411 -0.15 28.11 -16,866 11,143,113
2015-10-23 2015-10-21 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -300 397,011 -0.08 27.67 -8,301 10,985,294
2015-10-23 2015-10-21 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,100 397,311 -0.28 25.57 -28,127 10,159,242
2015-10-08 2015-10-07 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -200 398,411 -0.05 36.00 -7,200 14,342,796
2015-10-08 2015-10-07 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,100 398,611 -0.28 35.26 -38,786 14,055,024
2015-10-08 2015-10-07 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -700 399,711 -0.17 33.71 -23,597 13,474,258
2015-10-08 2015-10-06 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -500 400,411 -0.12 32.49 -16,245 13,009,353
2015-10-08 2015-10-06 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -800 400,911 -0.20 31.64 -25,312 12,684,824
2015-10-08 2015-10-06 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -700 401,711 -0.17 30.28 -21,196 12,163,809
2015-09-25 2015-09-24 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,500 402,411 -0.37 43.06 -64,590 17,327,818
2015-09-25 2015-09-24 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,100 403,911 -0.27 42.17 -46,387 17,032,927
2015-09-25 2015-09-23 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,600 405,011 -0.64 43.29 -112,554 17,532,926
2015-09-14 2015-09-11 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -100 407,611 -0.02 47.74 -4,774 19,459,349
2015-09-14 2015-09-11 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,700 407,711 -0.42 46.83 -79,611 19,093,106
2015-09-14 2015-09-11 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -800 409,411 -0.20 45.42 -36,336 18,595,448
2015-09-14 2015-09-10 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -400 410,211 -0.10 46.73 -18,692 19,169,160
2015-09-14 2015-09-10 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,800 410,611 -0.44 45.98 -82,764 18,879,894
2015-09-14 2015-09-10 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -400 412,411 -0.10 44.67 -17,868 18,422,399
2015-08-31 2015-08-28 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,100 374,982 -0.29 40.07 -44,077 15,025,529
2015-08-31 2015-08-28 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,500 376,082 -0.40 39.20 -58,800 14,742,414
2015-08-31 2015-08-27 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -600 377,582 -0.16 40.44 -24,264 15,269,416
2015-08-31 2015-08-27 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -500 378,182 -0.13 39.44 -19,720 14,915,498
2015-08-31 2015-08-27 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,500 378,682 -0.39 38.15 -57,225 14,446,718
2015-08-19 2015-08-17 4 ATRA Atara Biotherapeutics, Inc.
Restricted Stock Units 		M - Exercise -5,907 57,108 -9.37
2015-08-19 2015-08-17 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		M - Exercise 5,907 41,532 16.58
2015-08-03 2015-07-31 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -600 380,182 -0.16 57.45 -34,470 21,841,456
2015-08-03 2015-07-31 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,100 380,782 -0.29 56.25 -61,875 21,418,988
2015-08-03 2015-07-31 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -900 381,882 -0.24 55.41 -49,869 21,160,082
2015-08-03 2015-07-30 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -200 382,782 -0.05 57.13 -11,426 21,868,336
2015-08-03 2015-07-30 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,400 382,982 -0.62 56.05 -134,520 21,466,141
2015-07-20 2015-07-17 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -800 385,382 -0.21 60.71 -48,568 23,396,541
2015-07-20 2015-07-17 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,800 386,182 -0.46 59.90 -107,820 23,132,302
2015-07-20 2015-07-16 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -200 387,982 -0.05 62.90 -12,580 24,404,068
2015-07-20 2015-07-16 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -690 388,182 -0.18 61.70 -42,573 23,950,829
2015-07-20 2015-07-16 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,710 388,872 -0.44 60.90 -104,139 23,682,305
2015-07-02 2015-07-01 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -100 390,582 -0.03 50.65 -5,065 19,782,978
2015-07-02 2015-07-01 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -900 390,682 -0.23 49.86 -44,874 19,479,405
2015-07-02 2015-07-01 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -700 391,582 -0.18 48.40 -33,880 18,952,569
2015-07-02 2015-07-01 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -900 392,282 -0.23 45.25 -40,725 17,750,760
2015-07-02 2015-06-30 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -500 393,182 -0.13 53.61 -26,805 21,078,487
2015-07-02 2015-06-30 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,700 393,682 -0.43 53.03 -90,151 20,876,956
2015-07-02 2015-06-30 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -400 395,382 -0.10 51.65 -20,660 20,421,480
2015-06-19 2015-06-18 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -300 395,782 -0.08 57.15 -17,145 22,618,941
2015-06-19 2015-06-18 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -700 396,082 -0.18 55.77 -39,039 22,089,493
2015-06-19 2015-06-18 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -900 396,782 -0.23 53.83 -48,447 21,358,775
2015-06-19 2015-06-18 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -700 397,682 -0.18 52.62 -36,834 20,926,027
2015-06-19 2015-06-17 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -600 398,382 -0.15 55.60 -33,360 22,150,039
2015-06-19 2015-06-17 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,000 398,982 -0.50 54.86 -109,720 21,888,153
2015-06-08 2015-06-05 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -100 400,982 -0.02 45.25 -4,525 18,144,436
2015-06-08 2015-06-05 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -900 401,082 -0.22 44.64 -40,176 17,904,300
2015-06-08 2015-06-05 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,600 401,982 -0.40 43.74 -69,984 17,582,693
2015-06-08 2015-06-04 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -500 403,582 -0.12 43.15 -21,575 17,414,563
2015-06-08 2015-06-04 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,500 404,082 -0.37 42.76 -64,140 17,278,546
2015-06-08 2015-06-04 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,800 405,582 -0.44 41.22 -74,196 16,718,090
2015-05-26 2015-05-22 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -600 407,382 -0.15 38.16 -22,896 15,545,697
2015-05-26 2015-05-22 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,400 407,982 -0.34 37.40 -52,360 15,258,527
2015-05-26 2015-05-21 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -600 409,382 -0.15 38.47 -23,082 15,748,926
2015-05-26 2015-05-21 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -1,400 409,982 -0.34 37.06 -51,884 15,193,933
2015-05-26 2015-05-15 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		G - Gift 19,082 411,382 4.86
2015-05-26 2015-05-15 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		G - Gift -19,082 35,625 -34.88
2015-05-19 2015-05-15 4 ATRA Atara Biotherapeutics, Inc.
Restricted Stock Units 		M - Exercise -31,508 63,015 -33.33
2015-05-19 2015-05-15 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		F - Taxes -14,801 54,707 -21.29 37.30 -552,077 2,040,571
2015-05-19 2015-05-15 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		M - Exercise 31,508 69,508 82.92
2015-04-24 2015-04-23 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,600 392,300 -0.66 62.70 -163,020 24,597,210
2015-04-24 2015-04-22 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		S - Sale X -2,600 394,900 -0.65 60.01 -156,026 23,697,949
2015-01-21 2015-01-16 4 ATRA Atara Biotherapeutics, Inc.
Employee Stock Option (Right to Buy) 		A - Award 126,667 126,667
2015-01-21 2015-01-16 4 ATRA Atara Biotherapeutics, Inc.
Common Stock 		A - Award 38,000 38,000
2014-10-23 2014-10-21 4 ATRA Atara Biotherapeutics, Inc.
Restricted Stock Unit 		A - Award 94,523 94,523
2014-10-16 2014-10-15 4 ATRA Atara Biotherapeutics, Inc.
Employee Stock Option (Right to Buy) 		M - Exercise 155,000 155,000
2014-10-15 3 ATRA Atara Biotherapeutics, Inc.
Common Stock 		2,132,306
2014-10-15 3 ATRA Atara Biotherapeutics, Inc.
Common Stock 		2,132,306
P
공개 시장에서 또는 사적으로 비파생증권 또는 파생증권 매입
S
공개 시장에서 또는 사적으로 비파생증권 또는 파생증권 매각
A
자사로부터 유가증권(옵션 등)을 보조, 지급 또는 기타 취득
C
파생상품 전환
D
자사에게 유가증권을 매각 또는 양도
F
기업으로부터 인도 받은 유가증권의 일부를 사용한 행사 가격 또는 조세 채무의 지급
G
내부자에 의한 또는 내부자에게 증권 증여
K
지분스왑 및 유사 위험 회피거래
M
자사로부터 인도 받은 파생증권(옵션 등)의 행사 또는 전환
V
보고서 양식 4에 자진 신고된 거래
J
기타 (거래 내용을 설명하는 각주와 동반)