Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
488 institutional managers reported holding GNTX for the quarter ended Mar 31, 2026. Together they hold about 93% of shares outstanding; the top 10 hold 49%. 60 opened new positions; 90 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Vanguard Group | 21.72M | 10.27% | $474.7M | added +0.5% | ≤2013 |
| BlackRock | 21.30M | 10.07% | $465.6M | added +3.8% | ≤2013 |
| American Century Companies INC | 10.60M | 5.01% | $231.8M | added +7.8% | 2019 Q1 |
| Ariel Investments, LLC | 8.34M | 3.94% | $182.4M | added +5.7% | 2021 Q3 |
| Dimensional Fund Advisors | 7.46M | 3.53% | $163.1M | added +12.6% | ≤2013 |
| Bank OF Montreal /CAN/ | 7.40M | 3.50% | $161.7M | trimmed -4.2% | ≤2013 |
| Fuller & Thaler Asset Management, INC. | 7.11M | 3.36% | $155.4M | added +8.5% | 2022 Q4 |
| State Street | 7.08M | 3.35% | $154.8M | unchanged | ≤2013 |
| Geode Capital | 6.01M | 2.84% | $131.4M | added +5.7% | ≤2013 |
| Boston Partners | 5.69M | 2.69% | $124.4M | trimmed -2% | 2019 Q1 |
| Disciplined Growth Investors INC /MN | 4.52M | 2.14% | $98.8M | trimmed -5.9% | ≤2013 |
| Caisse de depot et placement du Quebec | 3.84M | 1.82% | $83.9M | added +22.1% | 2025 Q3 |
| Goldman Sachs | 3.78M | 1.78% | $82.5M | added +130% | ≤2013 |
| UBS | 3.58M | 1.70% | $78.3M | trimmed -16.7% | ≤2013 |
| Morgan Stanley | 3.05M | 1.44% | $66.6M | trimmed -7.6% | ≤2013 |
| Arrowstreet Capital | 3.00M | 1.42% | $65.5M | added +21.7% | 2025 Q3 |
| Charles Schwab Investment Management | 2.44M | 1.15% | $53.3M | added +2.7% | ≤2013 |
| Wellington Management | 2.24M | 1.06% | $49.0M | trimmed -2.6% | 2017 Q2 |
| Northern Trust | 2.17M | 1.03% | $47.4M | unchanged | ≤2013 |
| BNY Mellon | 2.11M | 1.00% | $46.1M | trimmed -4% | ≤2013 |
| Seizert Capital Partners, LLC | 1.99M | 0.94% | $43.5M | added +642.4% | 2025 Q4 |
| Millennium Management | 1.88M | 0.89% | $41.2M | added +11.2% | ≤2013 |
| West Michigan Advisors, LLC | 1.79M | 0.85% | $39.2M | unchanged | 2021 Q4 |
| Xxec, INC. (focused) | 1.54M | 0.73% | $33.7M | added +483.9% | 2024 Q1 |
| Renaissance Technologies | 1.51M | 0.71% | $33.0M | trimmed -12.6% | 2016 Q3 |
| Bank OF America CORP /DE/ | 1.51M | 0.71% | $32.9M | added +43.3% | ≤2013 |
| Voloridge Investment Management | 1.47M | 0.69% | $32.1M | added +5% | 2024 Q3 |
| Balyasny Asset Management | 1.38M | 0.65% | $30.1M | opened | 2026 Q1 |
| Gotham Asset Management | 1.29M | 0.61% | $28.3M | added +146.5% | 2021 Q1 |
| Citadel Advisors | 1.22M | 0.58% | $26.8M | trimmed -23.7% | ≤2013 |
| First Trust Advisors LP | 1.16M | 0.55% | $25.3M | added +51.9% | 2013 Q3 |
| Qube Research & Technologies LTD | 1.11M | 0.53% | $24.3M | trimmed -29.8% | 2020 Q2 |
| Janney Montgomery Scott LLC | 1.04M | 0.49% | $22.7M | added +5.9% | 2015 Q1 |
| Eubel Brady & Suttman Asset Management INC | 1.03M | 0.49% | $22.5M | added +22.6% | 2024 Q3 |
| Fort Washington Investment Advisors INC /OH/ | 1.02M | 0.48% | $22.3M | opened | 2026 Q1 |
| Freestone Grove Partners LP | 991.8k | 0.47% | $21.7M | added +61.2% | 2024 Q4 |
| Ameriprise Financial INC | 964.1k | 0.46% | $21.1M | trimmed -18.3% | ≤2013 |
| Raymond James Financial INC | 919.0k | 0.43% | $20.1M | added +15.5% | 2014 Q4 |
| Triodos Investment Management BV (focused) | 801.0k | 0.38% | $17.5M | unchanged | 2023 Q1 |
| VAN Lanschot Kempen Investment Management N.v. | 775.4k | 0.37% | $17.0M | added +4.9% | 2019 Q2 |
| Retirement Systems of Alabama | 693.3k | 0.33% | $15.2M | added +7% | ≤2013 |
| Rhumbline Advisers | 684.1k | 0.32% | $15.0M | trimmed -1.6% | ≤2013 |
| AQR Capital | 662.9k | 0.31% | $14.5M | added +185.2% | ≤2013 |
| Cidel Asset Management INC | 647.4k | 0.31% | $14.2M | added +61.4% | 2024 Q4 |
| Alps Advisors INC | 641.6k | 0.30% | $14.0M | trimmed -6.9% | 2022 Q2 |
| Trexquant Investment LP | 641.6k | 0.30% | $14.0M | added +18.4% | 2025 Q2 |
| Leeward Investments, LLC - MA | 637.0k | 0.30% | $13.9M | trimmed -2.9% | 2024 Q1 |
| Schwerin Boyle Capital Management INC (focused) | 621.3k | 0.29% | $13.6M | trimmed -10.7% | 2014 Q3 |
| Speece Thorson Capital Group INC (focused) | 609.0k | 0.29% | $13.3M | trimmed -6.4% | 2022 Q1 |
| Kayne Anderson Rudnick Investment Management LLC | 578.5k | 0.27% | $12.6M | trimmed -6.2% | 2021 Q3 |
Largest 50 of 488 shown; the full ranked, searchable register is at boothcheck.com/holders/GNTX. Related filers are grouped using the filings' own included-manager declarations. Historically, several managers opening new positions in the same quarter said almost nothing about the quarter that followed (59,118 cases since 2013). A filed record, not a forecast. Nothing here is investment advice.