Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
257 institutional managers reported holding OCUL for the quarter ended Mar 31, 2026. Together they hold about 92% of shares outstanding; the top 10 hold 58%. 68 opened new positions; 54 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| FMR (Fidelity) | 32.65M | 14.57% | $276.9M | added +2.7% | 2014 Q4 |
| Deep Track Capital, LP | 19.69M | 8.79% | $166.9M | added +143.9% | 2023 Q4 |
| BlackRock | 16.13M | 7.20% | $136.8M | added +3.4% | 2014 Q3 |
| Avoro Capital Advisors LLC (focused) | 12.31M | 5.50% | $104.4M | added +14.3% | 2024 Q1 |
| Summer Road LLC (focused) | 11.88M | 5.30% | $100.7M | added +6.9% | 2018 Q1 |
| Vanguard Group | 11.77M | 5.25% | $99.8M | added +1.7% | 2014 Q3 |
| Venrock Adviser, LLC (focused) | 10.35M | 4.62% | $87.7M | added +41.4% | 2023 Q4 |
| T. Rowe Price | 5.90M | 2.63% | $50.0M | added +3338.1% | 2020 Q4 |
| Point72 | 5.53M | 2.47% | $46.9M | added +444.6% | 2024 Q1 |
| State Street | 4.71M | 2.10% | $39.9M | added +12.2% | 2014 Q3 |
| Geode Capital | 4.53M | 2.02% | $38.4M | added +4% | 2014 Q3 |
| AllianceBernstein | 4.13M | 1.84% | $35.0M | trimmed -4.9% | 2015 Q1 |
| Logos Global Management LP | 3.85M | 1.72% | $32.6M | added +10% | 2023 Q4 |
| Octagon Capital Advisors LP (focused) | 3.17M | 1.41% | $26.9M | added +20.7% | 2024 Q1 |
| Balyasny Asset Management | 2.69M | 1.20% | $22.8M | added +252.6% | 2024 Q4 |
| Commodore Capital LP (focused) | 2.58M | 1.15% | $21.8M | opened | 2026 Q1 |
| Deltec Asset Management LLC | 2.34M | 1.04% | $19.8M | trimmed -5.9% | 2016 Q4 |
| Two Sigma | 1.83M | 0.82% | $15.5M | added +380.7% | 2020 Q1 |
| UBS | 1.83M | 0.82% | $15.5M | added +17.8% | 2014 Q3 |
| Woodline Partners LP | 1.67M | 0.74% | $14.1M | unchanged | 2024 Q3 |
| TCG Crossover Management, LLC (focused) | 1.65M | 0.73% | $14.0M | trimmed -71.3% | 2024 Q1 |
| Invesco | 1.54M | 0.69% | $13.0M | added +71.6% | 2020 Q1 |
| Northern Trust | 1.53M | 0.68% | $12.9M | added +4.3% | 2014 Q3 |
| Defilade Capital Management, L.p. (focused) | 1.49M | 0.66% | $12.6M | added +118.2% | 2025 Q4 |
| Charles Schwab Investment Management | 1.46M | 0.65% | $12.4M | unchanged | 2015 Q1 |
| Morgan Stanley | 1.28M | 0.57% | $10.9M | added +45.6% | 2014 Q3 |
| Renaissance Technologies | 1.15M | 0.51% | $9.7M | added +45.1% | 2025 Q1 |
| Goldman Sachs | 1.11M | 0.49% | $9.4M | trimmed -28.2% | 2016 Q2 |
| Squarepoint Ops LLC | 980.8k | 0.44% | $8.3M | added +122.7% | 2023 Q2 |
| Sio Capital Management, LLC | 968.6k | 0.43% | $8.2M | opened | 2026 Q1 |
| Candriam S.c.a. | 949.2k | 0.42% | $8.0M | added +12.8% | 2025 Q4 |
| Artisan Partners | 902.9k | 0.40% | $7.7M | trimmed -15.1% | 2024 Q3 |
| Empire Life Investments INC. | 884.3k | 0.40% | $7.5M | added +63.7% | 2025 Q3 |
| Readystate Asset Management LP | 883.6k | 0.39% | $7.5M | opened | 2026 Q1 |
| Raymond James Financial INC | 859.5k | 0.38% | $7.3M | added +2.1% | 2020 Q1 |
| Jane Street | 804.6k | 0.36% | $6.8M | trimmed -22.2% | 2020 Q1 |
| Cetera Investment Advisers | 764.6k | 0.34% | $6.5M | added +5.8% | 2021 Q3 |
| Walleye Capital LLC | 741.1k | 0.33% | $6.3M | added +198% | 2025 Q3 |
| Marshall Wace | 740.8k | 0.33% | $6.3M | trimmed -46.2% | 2025 Q3 |
| Peregrine Capital Management LLC | 720.5k | 0.32% | $6.1M | added +26.2% | 2025 Q1 |
| HRT Financial LP | 709.2k | 0.32% | $6.0M | added +76% | 2025 Q3 |
| Dimensional Fund Advisors | 649.8k | 0.29% | $5.5M | opened | 2026 Q1 |
| Citadel Advisors | 635.9k | 0.28% | $5.4M | trimmed -74.3% | 2017 Q4 |
| Deutsche Bank AG\ | 631.7k | 0.28% | $5.4M | added +6.9% | 2014 Q3 |
| Tudor Investment | 614.4k | 0.27% | $5.2M | added +24.2% | 2025 Q1 |
| Knoll Capital Management, LLC (focused) | 600.4k | 0.27% | $5.1M | unchanged | 2023 Q1 |
| Opaleye Management INC. | 600.0k | 0.27% | $5.1M | trimmed -62.4% | 2018 Q2 |
| Acuta Capital Partners, LLC (focused) | 592.1k | 0.26% | $5.0M | trimmed -43.8% | 2023 Q4 |
| Aberdeen Group plc | 558.4k | 0.25% | $4.7M | opened | 2026 Q1 |
| Algert Global LLC | 538.9k | 0.24% | $4.6M | added +323% | 2025 Q4 |
Largest 50 of 257 shown; the full ranked, searchable register is at boothcheck.com/holders/OCUL. 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.