제론 주식회사
DE ˙ DB ˙ US3741631036
€1.03 ↑0.01 (1.23%)
2026-06-04
주가
SecurityDE:GON / Geron Corporation
InstitutionUBS Group AG
Latest Disclosed Ownership3,693,333 shares
Latest Disclosed Value $ 5,503,066
UBS Group AG ownership in GON / Geron Corporation

On May 5, 2026 - UBS Group AG filed a 13F-HR form disclosing ownership of 3,693,333 shares of Geron Corporation (DE:GON) valued at $4,540,953 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 3,273,705 shares of Geron Corporation. This represents a change in shares of 12.82% during the quarter. The current value of the position is $3,809,673 USD.

UBS Group AG has a history of taking positions in derivatives of the underlying security (GON) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 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.

DE:GON / Geron Corporation 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)
2026-05-05 2026-03-31 13F GERON COM 374163103 3,693,333 419,628 12.82 5,503 27.35 0.0002
2026-01-29 2025-12-31 13F GERON COM 374163103 3,273,705 -4,447,402 -57.60 4,321 -59.15 0.0001
2025-11-13 2025-09-30 13F GERON COM 374163103 7,721,107 -4,023,905 -34.26 10,578 -36.13 0.0017
2025-08-14 2025-06-30 13F GERON COM 374163103 11,745,012 6,533,579 125.37 16,560 99.86 0.0029
2025-05-13 2025-03-31 13F GERON COM 374163103 5,211,433 -1,412,806 -21.33 8,286 -64.66 0.0015
2025-02-14 2024-12-31 13F GERON COM 374163103 6,624,239 3,401,763 105.56 23,450 60.28 0.0043
2024-11-14 2024-09-30 13F GERON COM 374163103 3,222,476 905,115 39.06 14,630 48.91 0.0032
2024-08-14 2024-06-30 13F GERON COM 374163103 2,317,361 510,050 28.22 9,826 64.74 0.0024
2024-05-13 2024-03-31 13F GERON COM 374163103 1,807,311 365,708 25.37 5,964 96.12 0.0015
2024-02-09 2023-12-31 13F GERON COM 374163103 1,441,603 790,423 121.38 3,042 120.36 0.0009
2023-11-09 2023-09-30 13F GERON COM 374163103 651,180 -1,414 -0.22 1,381 -34.10 0.0005
2023-08-11 2023-06-30 13F GERON COM 374163103 652,594 -138,635 -17.52 2,095 22.03 0.0007
2023-05-12 2023-03-31 13F GERON COM 374163103 791,229 172,257 27.83 1,717 14.63 0.0006
2023-02-08 2022-12-31 13F GERON COM 374163103 618,972 555,583 876.47 1,498 904.70 0.0006
2022-11-10 2022-09-30 13F GERON COM 374163103 63,389 -68,110 -51.80 149 -26.60 0.0001
2022-08-10 2022-06-30 13F GERON COM 374163103 131,499 -484,536 -78.65 203 -75.78 0.0001
2022-05-16 2022-03-31 13F GERON COM 374163103 616,035 12,298 2.04 838 13.70 0.0003
2022-02-14 2021-12-31 13F GERON COM 374163103 603,737 191,657 46.51 737 30.67 0.0002
2021-11-15 2021-09-30 13F GERON COM 374163103 412,080 365,575 786.10 564 767.69 0.0002
2021-08-13 2021-06-30 13F GERON COM 374163103 46,505 -365,091 -88.70 65 -90.00 0.0000
2021-05-12 2021-03-31 13F GERON COM 374163103 411,596 405,427 6,572.01 650 6,400.00 0.0002
2021-02-11 2020-12-31 13F GERON COM 374163103 6,169 0 0.00 10 -9.09 0.0000
2020-11-12 2020-09-30 13F GERON COM 374163103 6,169 -37,463 -85.86 11 -88.42 0.0000
2020-07-31 2020-06-30 13F GERON COM 374163103 43,632 -68,661 -61.14 95 -28.57 0.0000
2020-05-01 2020-03-31 13F GERON COM 374163103 112,293 -128,588 -53.38 133 -59.33 0.0001
2020-02-14 2019-12-31 13F GERON COM 374163103 240,881 124,847 107.60 327 112.34 0.0001
2019-11-14 2019-09-30 13F GERON COM 374163103 116,034 104,106 872.79 154 805.88 0.0001
2019-08-14 2019-06-30 13F GERON COM 374163103 11,928 -25,305 -67.96 17 -72.58 0.0000
2019-05-14 2019-03-31 13F GERON COM 374163103 37,233 -8,232 -18.11 62 37.78 0.0000
2019-02-14 2018-12-31 13F GERON COM 374163103 45,465 5,078 12.57 45 -36.62 0.0000
2018-11-14 2018-09-30 13F GERON COM 374163103 40,387 -2,862 -6.62 71 -52.03 0.0000
2018-08-14 2018-06-30 13F GERON COM 374163103 43,249 -92,714 -68.19 148 -74.39 0.0001
2018-05-15 2018-03-31 13F GERON COM 374163103 135,963 95,132 232.99 578 681.08 0.0002
2018-02-14 2017-12-31 13F GERON COM 374163103 40,831 -48,784 -54.44 74 -62.05 0.0000
2017-11-14 2017-09-30 13F GERON COM 374163103 89,615 41,148 84.90 195 44.44 0.0001
2017-11-14 2017-06-30 13F/A-1 GERON COM 374163103 48,467 -3,554 -6.83 135 14.41 0.0001
2017-08-14 2017-06-30 13F GERON COM 374163103 48,467 -3,554 135
2017-11-14 2017-03-31 13F/A-1 GERON COM 374163103 52,021 -70,992 -57.71 118 -53.54 0.0001
2017-05-12 2017-03-31 13F GERON COM 374163103 52,021 -70,992 118
2017-02-14 2016-12-31 13F GERON COM 374163103 123,013 27,874 29.30 254 18.14 0.0001
2016-11-14 2016-09-30 13F GERON COM 374163103 95,139 -51,155 -34.97 215 -45.29 0.0001
2016-08-12 2016-06-30 13F GERON COM 374163103 146,294 55,981 61.99 393 49.43 0.0002
2016-05-12 2016-03-31 13F GERON COM 374163103 90,313 -172,530 -65.64 263 -79.32 0.0002
2016-02-16 2015-12-31 13F GERON COM 374163103 262,843 151,634 136.35 1,272 314.33 0.0008
2015-11-13 2015-09-30 13F GERON COM 374163103 111,209 1,477 1.35 307 -34.68 0.0002
2015-08-14 2015-06-30 13F GERON COM 374163103 109,732 41,126 59.95 470 81.47 0.0003
2015-05-14 2015-03-31 13F GERON COM 374163103 68,606 -19,995 -22.57 259 -10.07 0.0002
2015-02-17 2014-12-31 13F GERON COM 374163103 88,601 88,601 288 0.0002
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
(%)
2016-05-12 2016-03-31 13F GERON COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2016-02-16 2015-12-31 13F GERON COM Call 2,500 0.00 12 71.43 n/a n/a n/a
2015-11-13 2015-09-30 13F GERON COM Call 2,500 0.00 7 -36.36 n/a n/a n/a
2015-08-14 2015-06-30 13F GERON COM Call 2,500 0.00 11 22.22 n/a n/a n/a
2015-05-14 2015-03-31 13F GERON COM Call 2,500 19.05 9 28.57 n/a n/a n/a
2015-02-17 2014-12-31 13F GERON COM Call 2,100 7 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.