Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
294 institutional managers reported holding COGT for the quarter ended Mar 31, 2026. Reported positions total over 95% of shares outstanding; the top 10 hold 59%. 70 opened new positions; 40 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| FMR (Fidelity) | 23.12M | 14.26% | $890.2M | unchanged | 2020 Q4 |
| BlackRock | 16.05M | 9.89% | $617.7M | added +23.7% | 2020 Q4 |
| Vanguard Group | 15.47M | 9.54% | $595.7M | added +34.4% | 2020 Q4 |
| Deerfield Management Company, L.p. | 9.04M | 5.58% | $348.2M | unchanged | 2020 Q4 |
| Janus Henderson | 5.97M | 3.68% | $229.7M | added +31.5% | 2020 Q4 |
| State Street | 5.66M | 3.49% | $218.0M | added +14.6% | 2020 Q4 |
| Fairmount Funds Management LLC (focused) | 5.50M | 3.39% | $211.9M | trimmed -38.9% | 2020 Q4 |
| RTW Investments, LP | 5.46M | 3.37% | $210.2M | trimmed -28.1% | 2025 Q3 |
| TCG Crossover Management, LLC (focused) | 4.95M | 3.05% | $190.5M | trimmed -15.7% | 2021 Q4 |
| Goldman Sachs | 4.43M | 2.73% | $170.7M | added +160% | 2020 Q4 |
| Kynam Capital Management, LP (focused) | 4.04M | 2.49% | $155.4M | trimmed -34.5% | 2021 Q4 |
| Geode Capital | 3.70M | 2.28% | $142.4M | added +5.3% | 2020 Q4 |
| Wellington Management | 3.58M | 2.21% | $137.8M | added +31.9% | 2023 Q4 |
| T. Rowe Price | 3.21M | 1.98% | $123.7M | added +25.3% | 2022 Q3 |
| Lord, Abbett & CO. LLC | 3.18M | 1.96% | $122.5M | added +70.1% | 2025 Q4 |
| Commodore Capital LP (focused) | 2.89M | 1.78% | $111.2M | added +31.5% | 2020 Q4 |
| Invesco | 2.43M | 1.50% | $93.5M | added +314.8% | 2020 Q4 |
| Octagon Capital Advisors LP (focused) | 2.35M | 1.45% | $90.5M | unchanged | 2024 Q3 |
| Holocene Advisors | 2.25M | 1.39% | $86.6M | added +91% | 2025 Q3 |
| Sofinnova Investments, INC. | 2.11M | 1.30% | $81.4M | added +7.1% | 2024 Q1 |
| Venrock Adviser, LLC (focused) | 2.00M | 1.23% | $77.0M | unchanged | 2020 Q4 |
| D. E. Shaw | 1.87M | 1.15% | $71.9M | trimmed -16.9% | 2021 Q4 |
| Pictet Asset Management Holding SA | 1.80M | 1.11% | $69.3M | added +1499.2% | 2024 Q3 |
| Citadel Advisors | 1.71M | 1.06% | $66.0M | added +19.2% | 2020 Q4 |
| Siren, L.l.c. | 1.71M | 1.05% | $65.8M | added +4.9% | 2025 Q2 |
| Marshall Wace | 1.60M | 0.99% | $61.6M | trimmed -3.6% | 2025 Q3 |
| Emerald Advisers, LLC | 1.59M | 0.98% | $61.1M | unchanged | 2025 Q2 |
| Candriam S.c.a. | 1.52M | 0.94% | $58.4M | added +17% | 2025 Q2 |
| Woodline Partners LP | 1.51M | 0.93% | $58.1M | added +84.4% | 2023 Q3 |
| Point72 | 1.41M | 0.87% | $54.3M | added +70.5% | 2020 Q4 |
| Silverarc Capital Management, LLC | 1.31M | 0.81% | $50.6M | added +5.5% | 2025 Q3 |
| Northern Trust | 1.25M | 0.77% | $48.0M | added +3.9% | 2020 Q4 |
| Charles Schwab Investment Management | 1.24M | 0.77% | $47.8M | trimmed -3% | 2021 Q2 |
| Fred Alger Management, LLC | 1.24M | 0.76% | $47.7M | added +12.5% | 2025 Q4 |
| Vestal Point Capital, LP | 1.23M | 0.76% | $47.4M | opened | 2026 Q1 |
| Millennium Management | 1.19M | 0.73% | $45.9M | trimmed -1.3% | 2021 Q4 |
| Elmind Capital, LP (focused) | 1.17M | 0.72% | $45.1M | unchanged | 2025 Q4 |
| Bank OF America CORP /DE/ | 1.04M | 0.64% | $40.2M | trimmed -12.4% | 2020 Q4 |
| Emerald Mutual Fund Advisers Trust | 1.03M | 0.63% | $39.6M | trimmed -0.9% | 2025 Q2 |
| Deep Track Capital, LP | 1.00M | 0.62% | $38.5M | added +120.7% | 2025 Q4 |
| First Turn Management, LLC (focused) | 947.3k | 0.58% | $36.5M | added +14.9% | 2025 Q4 |
| American Century Companies INC | 890.6k | 0.55% | $34.3M | unchanged | 2025 Q4 |
| Balyasny Asset Management | 856.6k | 0.53% | $33.0M | trimmed -40.5% | 2024 Q2 |
| Nuveen | 831.6k | 0.51% | $32.0M | trimmed -10.8% | 2021 Q2 |
| Squadron Capital Management LLC (focused) | 787.5k | 0.49% | $30.3M | added +1% | 2025 Q4 |
| J. Goldman & CO LP | 779.6k | 0.48% | $30.0M | added +77.5% | 2025 Q4 |
| Affinity Asset Advisors, LLC | 750.0k | 0.46% | $28.9M | added +114.3% | 2025 Q4 |
| Renaissance Technologies | 706.3k | 0.43% | $27.2M | added +2.5% | 2024 Q4 |
| Redmile Group, LLC (focused) | 688.0k | 0.42% | $26.5M | trimmed -52.2% | 2023 Q2 |
| Burkehill Global Management, LP | 675.0k | 0.42% | $26.0M | added +107.7% | 2025 Q3 |
Largest 50 of 294 shown; the full ranked, searchable register is at boothcheck.com/holders/COGT. 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.