Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in COSM held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | RENAISSANCE TECHNOLOGIES LLC | 391K | $124K | +16.7% | 0.718% | 0.00% |
| 2 | GEODE CAPITAL MANAGEMENT, LLC | 318K | $101K | +60.1% | 0.585% | 0.00% |
| 3 | BlackRock, Inc. | 268K | $85K | 0.0% | 0.492% | 0.00% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 140K | $44K | β | 0.257% | 0.00% |
| 5 | VANGUARD FIDUCIARY TRUST CO | 96K | $30K | β | 0.176% | 0.00% |
| 6 | STATE STREET CORP | 45K | $14K | 0.0% | 0.083% | 0.00% |
| 7 | XTX Topco Ltd | 40K | $13K | -59.4% | 0.074% | 0.00% |
| 8 | NORTHERN TRUST CORP | 21K | $7K | 0.0% | 0.038% | 0.00% |
| 9 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 18K | $6K | +46.0% | 0.033% | 0.00% |
| 10 | UBS Group AG | 13K | $4K | +248.4% | 0.023% | 0.00% |
| 11 | NATIONAL BANK OF CANADA /FI/ | 6K | $2K | 0.0% | 0.012% | 0.00% |
| 12 | SIMPLEX TRADING, LLC | 4K | $1K | -40.3% | 0.007% | 0.00% |
| 13 | GROUP ONE TRADING, L.P. | 2K | $753 | -0.8% | 0.004% | 0.00% |
| 14 | Allworth Financial LP | 1K | $394 | β | 0.002% | 0.00% |
| 15 | CITIGROUP INC | 990 | $314 | β | 0.002% | 0.00% |
| 16 | Tower Research Capital LLC (TRC) | 755 | $239 | -3.6% | 0.001% | 0.00% |
| 17 | SBI Securities Co., Ltd. | 112 | $36 | 0.0% | 0.000% | 0.00% |
| 18 | HRT FINANCIAL LP | 67K | $21 | +162.2% | 0.124% | 0.00% |
| 19 | WELLS FARGO & COMPANY/MN | 40 | $13 | 0.0% | 0.000% | 0.00% |
| 20 | Silicon Valley Capital Partners | 1 | $0 | β | 0.000% | 0.00% |
| 21 | FMR LLC | 0 | $0 | β | 0.000% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in COSM β a direct measure of their conviction.
Filings activity in COSM during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 21 | +0.0% | 3.79% | 1.75 pp | $0M | 32% |
| Q4 2025 | 21 | 4.5% | 5.54% | 5.98 pp | $1M | 52% |
| Q3 2025 | 22 | +10% | 11.52% | +8.22 pp | $1M | +249% |
| Q2 2025 | 20 | +0.0% | 3.30% | 7.08 pp | $0M | 68% |
| Q1 2025 | 20 | +0.0% | 10.38% | +1.21 pp | $1M | +13% |
| Q4 2024 | 20 | +18% | 9.17% | 9.22 pp | $1M | 50% |
| Q3 2024 | 17 | +21% | 18.39% | +13.03 pp | $2M | +243% |
| Q2 2024 | 14 | β | 5.36% | β | $1M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying COSM stock.
Based on Q1 2026 13F filings, institutional ownership of Cosmos Health Inc. stands at 3.8%, held across 21 reporting institutions.
RENAISSANCE TECHNOLOGIES LLC is the largest reported institutional holder of COSM, with approximately 390,500 shares worth $0.00B as of Q1 2026.
Yes β 2 widely-followed marquee investors appear among the top 25 institutional holders of COSM, including RENAISSANCE TECHNOLOGIES LLC, SUSQUEHANNA INTERNATIONAL GROUP, LLP.
Our composite Smart Money Score for COSM is 45 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
5 institutions opened new positions in COSM during Q1 2026, while 5 fully exited. 3 added to existing positions and 12 trimmed.
COSM institutional ownership fell by 1.75 percentage points quarter-over-quarter, with a net change of +0 holders.
The top 10 institutions account for 98.8% of all reported 13F value in COSM, 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.
Cosmos Health Inc. (COSM) Institutional Ownership