Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in COCP held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | VANGUARD CAPITAL MANAGEMENT LLC | 240K | $242K | — | 2.341% | 0.00% |
| 2 | RENAISSANCE TECHNOLOGIES LLC | 124K | $125K | -1.7% | 1.209% | 0.00% |
| 3 | GEODE CAPITAL MANAGEMENT, LLC | 90K | $91K | +9.4% | 0.880% | 0.00% |
| 4 | BlackRock, Inc. | 74K | $74K | 0.0% | 0.720% | 0.00% |
| 5 | T3 Companies, LLC | 52K | $52K | -1.5% | 0.502% | 0.07% |
| 6 | XTX Topco Ltd | 36K | $36K | +138.0% | 0.351% | 0.00% |
| 7 | Neuberger Berman Group LLC | 32K | $32K | 0.0% | 0.311% | 0.00% |
| 8 | VANGUARD FIDUCIARY TRUST CO | 24K | $24K | — | 0.234% | 0.00% |
| 9 | STATE STREET CORP | 21K | $21K | 0.0% | 0.200% | 0.00% |
| 10 | TWO SIGMA SECURITIES, LLC | 15K | $15K | +19.6% | 0.149% | 0.00% |
| 11 | JANE STREET GROUP, LLC | 13K | $13K | +19.6% | 0.124% | 0.00% |
| 12 | Parallel Advisors, LLC | 13K | $13K | 0.0% | 0.123% | 0.00% |
| 13 | NORTHERN TRUST CORP | 12K | $12K | 0.0% | 0.116% | 0.00% |
| 14 | WELLS FARGO & COMPANY/MN | 7K | $7K | +793.3% | 0.069% | 0.00% |
| 15 | UBS Group AG | 5K | $5K | +161.3% | 0.045% | 0.00% |
| 16 | Tower Research Capital LLC (TRC) | 4K | $4K | -16.7% | 0.041% | 0.00% |
| 17 | MORGAN STANLEY | 948 | $957 | 0.0% | 0.009% | 0.00% |
| 18 | NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | 817 | $825 | -11.7% | 0.008% | 0.00% |
| 19 | Clean Yield Group | 418 | $422 | 0.0% | 0.004% | 0.00% |
| 20 | FMR LLC | 334 | $337 | — | 0.003% | 0.00% |
| 21 | MAI Capital Management | 237 | $240 | 0.0% | 0.002% | 0.00% |
| 22 | NVWM, LLC | 84 | $85 | 0.0% | 0.001% | 0.00% |
| 23 | SBI Securities Co., Ltd. | 33 | $33 | 0.0% | 0.000% | 0.00% |
| 24 | Virtu Financial LLC | 13K | $13 | — | 0.128% | 0.00% |
| 25 | CITIGROUP INC | 1 | $1 | -99.7% | 0.000% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in COCP — a direct measure of their conviction.
Filings activity in COCP during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new COCP position in Q1 2026
Institutions that fully closed their COCP position in Q1 2026
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 26 | 7.1% | 7.56% | 1.37 pp | $1M | 15% |
| Q4 2025 | 28 | +22% | 8.93% | +0.78 pp | $1M | +9.5% |
| Q3 2025 | 23 | +0.0% | 8.15% | 1.88 pp | $1M | 19% |
| Q2 2025 | 23 | 8.0% | 10.03% | 0.40 pp | $1M | 3.9% |
| Q1 2025 | 25 | 3.8% | 10.43% | 3.66 pp | $1M | 26% |
| Q4 2024 | 26 | +24% | 14.09% | +1.68 pp | $1M | +14% |
| Q3 2024 | 21 | +40% | 12.41% | 3.00 pp | $1M | 19% |
| Q2 2024 | 15 | — | 15.41% | — | $2M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying COCP stock.
Based on Q1 2026 13F filings, institutional ownership of Cocrystal Pharma, Inc. stands at 7.6%, held across 26 reporting institutions.
VANGUARD CAPITAL MANAGEMENT LLC is the largest reported institutional holder of COCP, with approximately 239,971 shares worth $0.00B as of Q1 2026.
Yes — 3 widely-followed marquee investors appear among the top 25 institutional holders of COCP, including RENAISSANCE TECHNOLOGIES LLC, TWO SIGMA SECURITIES, LLC, JANE STREET GROUP, LLC.
Our composite Smart Money Score for COCP is 43 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
3 institutions opened new positions in COCP during Q1 2026, while 5 fully exited. 18 added to existing positions and 3 trimmed.
COCP institutional ownership fell by 1.37 percentage points quarter-over-quarter, with a net change of -2 holders.
The top 10 institutions account for 92.7% of all reported 13F value in COCP, and the top 25 account for 100.0%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Cocrystal Pharma, Inc. (COCP) Institutional Ownership