Cosmos Health Inc.
Cosmos Health Inc. (COSM) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · COSM · as of Sep 30, 2025
Ownership Breakdown
22
Institutional Holders
▲ 4 vs Q2
$1.35M
Total Inst. Value
▲ $925,558 vs Q2
59.96M
Shares Outstanding
freeFloat 67.45%
1.22M
13F Shares Held
▲ 211,310 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
COSM largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. wholesale-drugs, proprietaries & druggists' sundries | 267.8K | 93.14% | 93.14% | $297.25M | Nov 12, 2025 | — held |
VANGUARD GROUP INC wholesale-drugs, proprietaries & druggists' sundries | 235.7K | 81.99% | 81.99% | $261.67M | Nov 7, 2025 | ▲ 100.9K |
CITADEL ADVISORS LLC wholesale-drugs, proprietaries & druggists' sundries | 225.5K | 78.43% | 78.43% | $250.31M | Nov 14, 2025 | ▲ 128.8K |
GEODE CAPITAL MANAGEMENT, LLC wholesale-drugs, proprietaries & druggists' sundries | 198.7K | 69.10% | 69.10% | $220.58M | Nov 12, 2025 | ▲ 7.1K |
RENAISSANCE TECHNOLOGIES LLC wholesale-drugs, proprietaries & druggists' sundries | 92.8K | 32.27% | 32.27% | $103.01M | Nov 13, 2025 | NEW |
XTX TOPCO LTD wholesale-drugs, proprietaries & druggists' sundries | 65.5K | 22.78% | 22.78% | $72.70M | Nov 14, 2025 | ▲ 28.8K |
STATE STREET CORP wholesale-drugs, proprietaries & druggists' sundries | 24.7K | 8.61% | 8.61% | $27.46M | Nov 14, 2025 | — held |
NORTHERN TRUST CORP wholesale-drugs, proprietaries & druggists' sundries | 20.6K | 7.15% | 7.15% | $22.82M | Nov 14, 2025 | — held |
SUSQUEHANNA INTERNATIONAL GROUP, LLP wholesale-drugs, proprietaries & druggists' sundries | 20.5K | 7.13% | 7.13% | $22.77M | Nov 14, 2025 | NEW |
STONEX GROUP INC. wholesale-drugs, proprietaries & druggists' sundries | 19.3K | 6.71% | 6.71% | $21.42M | Nov 14, 2025 | NEW |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
4
Increased
+265.6K shares8
New Positions
first time holders4
Decreased
−151.6K shares4
Sold Out
fully exitedNet shares change (top 50)
+114.0K
+265.6K / −151.6K
Net new holders
+4
8 new / 4 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
COSM insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
9
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Siokas Grigorios Chief Executive Officer | Feb 12, 2026 | Purchase | 388,532 | $0.37 | $145.0K | 8.86M | Form 4 ↗ |
Siokas Grigorios Chief Executive Officer | Feb 11, 2026 | Purchase | 291,262 | $0.41 | $120.0K | 8.47M | Form 4 ↗ |
Siokas Grigorios Chief Executive Officer | Jan 23, 2026 | Purchase | 90,325 | $0.50 | $45.0K | 8.18M | Form 4 ↗ |
Siokas Grigorios Chief Executive Officer | Jan 20, 2026 | Purchase | 353,321 | $0.50 | $175.0K | 8.09M | Form 4 ↗ |
Siokas Grigorios Chief Executive Officer | Jan 14, 2026 | Purchase | 493,495 | $0.45 | $220.0K | 7.74M | Form 4 ↗ |
Siokas Grigorios Chief Executive Officer | Jan 12, 2026 | Purchase | 113,185 | $0.50 | $57.0K | 7.24M | Form 4 ↗ |
Siokas Grigorios Chief Executive Officer | Jan 8, 2026 | Purchase | 156,190 | $0.52 | $81.0K | 7.13M | Form 4 ↗ |
Siokas Grigorios Chief Executive Officer | Jan 7, 2026 | Purchase | 124,880 | $0.52 | $65.0K | 6.98M | Form 4 ↗ |
Siokas Grigorios Chief Executive Officer | Jan 6, 2026 | Purchase | 133,953 | $0.54 | $72.0K | 6.85M | Form 4 ↗ |
Siokas Grigorios Chief Executive Officer | Dec 19, 2025 | Purchase | 88,314 | $0.49 | $43.0K | 6.72M | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Cosmos Health Inc. (COSM) is primarily owned by institutional investors, who hold approximately 2.0% of total shares outstanding. Company insiders own approximately 32.55%, while retail and public investors account for the remaining 65.42%.
The largest institutional shareholder of Cosmos Health Inc. is BLACKROCK, INC., holding approximately 267,797 shares — equal to 93.14% of outstanding shares — as of September 30, 2025.
A total of 22 institutional investors currently hold COSM stock, with a combined institutional value of approximately $1,347,889 as of the most recent 13F filing period.
Frequently asked questions
COSM ownershipCosmos Health Inc. (COSM) is primarily owned by institutional investors, who hold approximately 2.0% of shares. The largest shareholder is BLACKROCK, INC. with a 93.14% stake. Company insiders hold 32.55%. Data sourced from SEC Form 13F as of September 30, 2025.