블랙라인(주)
US ˙ NasdaqGS ˙ US09239B1098

SecurityBL / BlackLine, Inc.
InstitutionMillennium Management Llc
ManagerIsrael Englander
Latest Disclosed Ownership173,164 shares
Latest Disclosed Value $ 6,407,068
Millennium Management Llc ownership in BL / BlackLine, Inc.

On May 15, 2026 - Millennium Management Llc filed a 13F-HR form disclosing ownership of 173,164 shares of BlackLine, Inc. (US:BL) valued at $6,407,068 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 209,258 shares of BlackLine, Inc.. This represents a change in shares of -17.25% during the quarter. The current value of the position is $4,962,880 USD.

Millennium Management Llc has a history of taking positions in derivatives of the underlying security (BL) in the form of stock options. The firm currently holds call options representing 50,300 of underlying shares valued at $1,861,100 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

BL / BlackLine, Inc. Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F BLACKLINE COM 09239B109 173,164 -36,094 -17.25 6,407 -44.62 0.0027
2026-02-17 2025-12-31 13F BLACKLINE COM 09239B109 209,258 -118,384 -36.13 11,570 -33.50 0.0049
2025-11-14 2025-09-30 13F BLACKLINE COM 09239B109 327,642 68,492 26.43 17,398 18.56 0.0074
2025-08-14 2025-06-30 13F BLACKLINE COM 09239B109 259,150 175,933 211.41 14,673 264.18 0.0071
2025-05-15 2025-03-31 13F BLACKLINE COM 09239B109 83,217 -68,513 -45.15 4,029 -56.30 0.0021
2025-02-14 2024-12-31 13F BLACKLINE COM 09239B109 151,730 -80,769 -34.74 9,219 -28.08 0.0045
2024-11-14 2024-09-30 13F BLACKLINE COM 09239B109 232,499 -207,888 -47.21 12,820 -39.92 0.0061
2024-08-14 2024-06-30 13F BLACKLINE COM 09239B109 440,387 440,387 21,337 0.0099
2024-05-15 2024-03-31 13F BLACKLINE COM 09239B109 0 -33,484 -100.00 0 -100.00
2024-02-14 2023-12-31 13F BLACKLINE COM 09239B109 33,484 -103,194 -75.50 2,091 -72.43 0.0009
2023-11-14 2023-09-30 13F BLACKLINE COM 09239B109 136,678 -22,443 -14.10 7,582 -11.47 0.0038
2023-08-14 2023-06-30 13F BLACKLINE COM 09239B109 159,121 34,551 27.74 8,564 2.37 0.0042
2023-05-15 2023-03-31 13F BLACKLINE COM 09239B109 124,570 25,623 25.90 8,365 25.68 0.0048
2023-02-14 2022-12-31 13F BLACKLINE COM 09239B109 98,947 -48,524 -32.90 6,656 -24.65 0.0037
2022-11-14 2022-09-30 13F BLACKLINE COM 09239B109 147,471 -31,892 -17.78 8,834 -26.05 0.0052
2022-08-15 2022-06-30 13F BLACKLINE COM 09239B109 179,363 -82,697 -31.56 11,946 -37.74 0.0074
2022-05-16 2022-03-31 13F BLACKLINE COM 09239B109 262,060 -65,508 -20.00 19,188 -43.42 0.0102
2022-02-14 2021-12-31 13F BLACKLINE COM 09239B109 327,568 11,330 3.58 33,916 -9.16 0.0172
2021-11-15 2021-09-30 13F BLACKLINE COM 09239B109 316,238 -125,039 -28.34 37,335 -23.96 0.0224
2021-08-16 2021-06-30 13F BLACKLINE COM 09239B109 441,277 222,384 101.59 49,101 106.93 0.0301
2021-05-17 2021-03-31 13F BLACKLINE COM 09239B109 218,893 218,893 23,728 0.0170
2020-11-16 2020-09-30 13F BLACKLINE COM 09239B109 0 -5,156 -100.00 0 -100.00
2020-08-14 2020-06-30 13F BLACKLINE COM 09239B109 5,156 -85,460 -94.31 427 -91.04 0.0006
2020-05-14 2020-03-31 13F BLACKLINE COM 09239B109 90,616 -449,344 -83.22 4,767 -82.88 0.0107
2020-02-14 2019-12-31 13F BLACKLINE COM 09239B109 539,960 -23,055 -4.09 27,840 3.43 0.0348
2019-11-14 2019-09-30 13F BLACKLINE COM 09239B109 563,015 416,326 283.82 26,917 242.94 0.0426
2019-08-15 2019-06-30 13F/A-1 BLACKLINE COM 09239B109 146,689 22,975 18.57 7,849 36.98 0.0118
2019-08-14 2019-06-30 13F BLACKLINE COM 09239B109 146,689 22,975 7,849
2019-05-14 2019-03-31 13F BLACKLINE COM 09239B109 123,714 41,049 49.66 5,730 69.28 0.0086
2019-02-15 2018-12-31 13F/A-1 BLACKLINE COM 09239B109 82,665 41,688 101.74 3,385 46.28 0.0053
2019-02-14 2018-12-31 13F BLACKLINE COM 09239B109 82,665 3,385
2018-11-14 2018-09-30 13F BLACKLINE COM 09239B109 40,977 35,227 612.64 2,314 825.60 0.0028
2018-08-14 2018-06-30 13F BLACKLINE COM 09239B109 5,750 5,750 -90.71 250 -97.65 0.0003
2018-05-15 2018-03-31 13F BLACKLINE COM 09239B109 0 -36,276 -100.00 0 -100.00
2018-02-14 2017-12-31 13F BLACKLINE COM 09239B109 36,276 -100,354 -73.45 1,190 -74.47 0.0016
2017-11-14 2017-09-30 13F BLACKLINE COM 09239B109 136,630 123,830 967.42 4,662 920.13 0.0071
2017-08-14 2017-06-30 13F BLACKLINE COM 09239B109 12,800 12,800 457 0.0008
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F BLACKLINE COM Call 50,300 -74.85 1,861 -83.17 n/a n/a n/a
2026-02-17 2025-12-31 13F BLACKLINE COM Call 200,000 300.00 11,058 316.50 n/a n/a n/a
2025-11-14 2025-09-30 13F BLACKLINE COM Call 50,000 2,655 n/a n/a n/a
2025-08-14 2025-06-30 13F BLACKLINE COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-05-15 2025-03-31 13F BLACKLINE COM Call 12,500 605 n/a n/a n/a
2024-11-14 2024-09-30 13F BLACKLINE COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-08-14 2024-06-30 13F BLACKLINE COM Call 20,000 66.67 969 25.19 n/a n/a n/a
2024-05-15 2024-03-31 13F BLACKLINE COM Call 12,000 775 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.