GERN in the 13F filings
Geron Corp · CUSIP 374163103
- Quarter end
- 31 Dec 2025
- the date the book describes
- Filed
- 19 Feb 2026
- latest of these filings; the earliest 11 Feb 2026
- Managers listing it
- 19
- at least, of 95 tracked, among listed positions
- Comparable managers
- 92
- filed both Q3 2025 and Q4 2025; 2 listed it in both
- Shares listed
- 39,888,197
- combined, among listed positions
- Reported value
- $53m
- combined, at the quarter end
Among the 92 comparable managers: 7 buyers (opened or added shares) and 14 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -15,866,827.
Managers listing GERN in Q4 2025
19 of 19 holders
Largest increases and reductions, by shares
Increases
- Woodline Partners LPexisting position · 7,504,094 shares now+1,620,302
- Two Sigma Investments LPexisting position · 2,801,468 shares now+949,450
- Fidelity (FMR LLC)existing position · 8,076,965 shares now+375,895
- Invesco Ltdexisting position · 1,225,658 shares now+265,197
- Man Group PLCexisting position · 123,848 shares now+66,837
Reductions
- Millennium Management LLCexisting position · 4,603,876 shares now-6,764,113
- Citadel Advisors LLCexisting position · 9,925,786 shares now-5,779,282
- Squarepoint Ops LLCexisting position · 1,130,076 shares now-2,158,631
- Renaissance Technologies LLCexisting position · 737,166 shares now-1,627,114
- Jane Street Group LLCexisting position · 1,013,003 shares now-1,109,335
New positions and exits
New (0)
No new position among listed positions.
Exited (4)
- Winton Group Ltdwas $120k
- ExodusPoint Capital Management LPwas $64k
- Marshall Wace LLPwas $31k
- Walleye Capital LLCwas $30k
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q2 2013 | 1 | $3.9m | n.a. | n.a. |
| Q3 2013 | 1 | $8.4m | n.a. | n.a. |
| Q4 2013 | 2 | $9.9m | n.a. | n.a. |
| Q1 2014 | 1 | $6.4m | n.a. | n.a. |
| Q2 2014 | 1 | $11m | n.a. | n.a. |
| Q3 2014 | 1 | $4.4m | n.a. | n.a. |
| Q4 2014 | 2 | $3.7m | n.a. | n.a. |
| Q1 2015 | 2 | $2.8m | n.a. | n.a. |
| Q2 2015 | 1 | $705k | n.a. | n.a. |
| Q3 2015 | 1 | $455k | n.a. | n.a. |
| Q4 2015 | 1 | $773k | n.a. | n.a. |
| Q1 2016 | 1 | $466k | n.a. | n.a. |
| Q2 2016 | 1 | $428k | n.a. | n.a. |
| Q3 2016 | 1 | $327k | n.a. | n.a. |
| Q4 2016 | 1 | $300k | n.a. | n.a. |
| Q1 2017 | 1 | $328k | n.a. | n.a. |
| Q2 2017 | 1 | $401k | n.a. | n.a. |
| Q3 2017 | 1 | $315k | n.a. | n.a. |
| Q4 2017 | 1 | $260k | n.a. | n.a. |
| Q3 2022 | 2 | $3.0m | n.a. | n.a. |
| Q4 2022 | 1 | $3.2m | n.a. | n.a. |
| Q1 2023 | 1 | $7.6m | n.a. | n.a. |
| Q2 2023 | 1 | $31m | n.a. | n.a. |
| Q1 2024 | 2 | $29m | 2 | 0 |
| Q2 2024 | 4 | $185m | 4 | 0 |
| Q3 2024 | 5 | $220m | 3 | 2 |
| Q4 2024 | 4 | $216m | 3 | 1 |
| Q1 2025 | 3 | $43m | 0 | 3 |
| Q2 2025 | 2 | $11m | 1 | 0 |
| Q3 2025 | 2 | $8.1m | 0 | 1 |
| Q4 2025 | 2 | $10.0m | 7 | 14 |
| Q1 2026 | 1 | $64k | 15 | 7 |
| Q2 2026 | 2 | $1.5m | 14 | 11 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
GERN and LLY →GERN and JNJ →GERN and VRTX →Choose a stock to compare with GERN →
How much of the picture this is
A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.
Which funds own GERN, latest filings →Back to the 13F Explorer →