- Quarter end
- 30 Sep 2025
- the date the book describes
- Filed
- 17 Nov 2025
- latest of these filings; the earliest 12 Nov 2025
- Managers listing it
- 10
- at least, of 95 tracked, among listed positions
- Comparable managers
- 95
- filed both Q2 2025 and Q3 2025; 8 listed it in both
- Shares listed
- 17,961,649
- combined, among listed positions
- Reported value
- $508m
- combined, at the quarter end
Among the 95 comparable managers: 3 buyers (opened or added shares) and 6 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +397,172.
Managers listing GNTX in Q3 2025
Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q2 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.
10 of 10 holders
| Action | Filing | |||||
|---|---|---|---|---|---|---|
| Wellington Management Group LLP | 14,828,120 | $420m | 0.07% | Added | +1,383,203 | 14 Nov 2025 (the filing on sec.gov) |
| Bridgewater Associates LP | 952,358 | $27m | 0.11% | Trimmed | -235,416 | 13 Nov 2025 (the filing on sec.gov) |
| Voloridge Investment Management LLC | 637,118 | $18m | 0.06% | Trimmed | -947,631 | 14 Nov 2025 (the filing on sec.gov) |
| Woodline Partners LP | 560,616 | $16m | 0.07% | New | new | 14 Nov 2025 (the filing on sec.gov) |
| Winton Group Ltd | 256,478 | $7.3m | 0.27% | New | new | 13 Nov 2025 (the filing on sec.gov) |
| GAMCO Investors Inc | 225,500 | $6.4m | 0.06% | Held | 0 | 12 Nov 2025 (the filing on sec.gov) |
| Holocene Advisors LP | 197,112 | $5.6m | under 0.1% | Trimmed | -137,142 | 14 Nov 2025 (the filing on sec.gov) |
| Quantbot Technologies LP | 167,871 | $4.8m | 0.13% | Trimmed | -288,647 | 12 Nov 2025 (the filing on sec.gov) |
| Caxton Associates LLP | 86,926 | $2.5m | 0.06% | Trimmed | -98,070 | 17 Nov 2025 (the filing on sec.gov) |
| Freestone Grove Partners LP | 49,550 | $1.4m | under 0.1% | Trimmed | -96,219 | 14 Nov 2025 (the filing on sec.gov) |
Largest increases and reductions, by shares
Q2 2025 to Q3 2025, among managers that listed it in both quarters or opened it.
Increases
- Wellington Management Group LLPexisting position · 14,828,120 shares now+1,383,203
- Woodline Partners LPnew position · 560,616 shares now+560,616
- Winton Group Ltdnew position · 256,478 shares now+256,478
Reductions
- Voloridge Investment Management LLCexisting position · 637,118 shares now-947,631
- Quantbot Technologies LPexisting position · 167,871 shares now-288,647
- Bridgewater Associates LPexisting position · 952,358 shares now-235,416
- Holocene Advisors LPexisting position · 197,112 shares now-137,142
- Caxton Associates LLPexisting position · 86,926 shares now-98,070
New positions and exits
At least these many: a manager is shown exiting only where its own filing shows the position gone.
New (2)
- Woodline Partners LP$16m
- Winton Group Ltd$7.3m
Exited (0)
No exit shown by a manager’s own filing.
Ownership over time
Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
7 in Q3 2024 to 10 in Q2 2026
Tracked managers listing it, at least.
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q2 2013 | 8 | $251m | n.a. | n.a. |
| Q3 2013 | 8 | $260m | n.a. | n.a. |
| Q4 2013 | 5 | $277m | n.a. | n.a. |
| Q1 2014 | 5 | $261m | n.a. | n.a. |
| Q2 2014 | 8 | $286m | n.a. | n.a. |
| Q3 2014 | 4 | $204m | n.a. | n.a. |
| Q4 2014 | 6 | $648m | n.a. | n.a. |
| Q1 2015 | 3 | $249m | n.a. | n.a. |
| Q2 2015 | 7 | $192m | n.a. | n.a. |
| Q3 2015 | 8 | $376m | n.a. | n.a. |
| Q4 2015 | 6 | $370m | n.a. | n.a. |
| Q1 2016 | 6 | $354m | n.a. | n.a. |
| Q2 2016 | 5 | $258m | n.a. | n.a. |
| Q3 2016 | 8 | $270m | n.a. | n.a. |
| Q4 2016 | 6 | $297m | n.a. | n.a. |
| Q1 2017 | 6 | $313m | n.a. | n.a. |
| Q2 2017 | 5 | $273m | n.a. | n.a. |
| Q3 2017 | 9 | $308m | n.a. | n.a. |
| Q4 2017 | 6 | $238m | n.a. | n.a. |
| Q1 2018 | 8 | $354m | n.a. | n.a. |
| Q2 2018 | 6 | $296m | n.a. | n.a. |
| Q3 2018 | 8 | $226m | n.a. | n.a. |
| Q4 2018 | 9 | $232m | n.a. | n.a. |
| Q1 2019 | 5 | $215m | n.a. | n.a. |
| Q2 2019 | 5 | $254m | n.a. | n.a. |
| Q3 2019 | 12 | $411m | n.a. | n.a. |
| Q4 2019 | 12 | $580m | n.a. | n.a. |
| Q1 2020 | 18 | $412m | n.a. | n.a. |
| Q2 2020 | 17 | $427m | n.a. | n.a. |
| Q3 2020 | 17 | $466m | n.a. | n.a. |
| Q4 2020 | 15 | $594m | n.a. | n.a. |
| Q1 2021 | 13 | $386m | n.a. | n.a. |
| Q2 2021 | 15 | $370m | n.a. | n.a. |
| Q3 2021 | 10 | $352m | n.a. | n.a. |
| Q4 2021 | 10 | $246m | n.a. | n.a. |
| Q1 2022 | 9 | $189m | n.a. | n.a. |
| Q2 2022 | 10 | $167m | n.a. | n.a. |
| Q3 2022 | 11 | $137m | n.a. | n.a. |
| Q4 2022 | 11 | $151m | n.a. | n.a. |
| Q1 2023 | 11 | $132m | n.a. | n.a. |
| Q2 2023 | 6 | $71m | n.a. | n.a. |
| Q3 2023 | 10 | $468m | n.a. | n.a. |
| Q4 2023 | 8 | $447m | 4 | 3 |
| Q1 2024 | 5 | $679m | 1 | 3 |
| Q2 2024 | 5 | $765m | 2 | 2 |
| Q3 2024 | 7 | $589m | 4 | 2 |
| Q4 2024 | 9 | $604m | 5 | 3 |
| Q1 2025 | 9 | $450m | 7 | 3 |
| Q2 2025 | 8 | $386m | 5 | 3 |
| Q3 2025 | 10 | $508m | 3 | 6 |
| Q4 2025 | 9 | $197m | 25 | 9 |
| Q1 2026 | 8 | $172m | 13 | 17 |
| Q2 2026 | 10 | $256m | 16 | 15 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
GNTX and AMZN →GNTX and TSLA →GNTX and HD →Choose a stock to compare with GNTX →
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 GNTX, latest filings →Back to the 13F Explorer →