Cosmos Health
COSM · NASDAQ
$0.261+$0.008 (+3.16%)TodayMarket closed ·
Prev close $0.253
Who owns COSM
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 23.4% of COSM’s shares.
- Siokas (Grigorios)14.5%
- Bovopoulos (Andreas D)4.3%
- Terzis (Georgios)2.5%
- UBS Financial Services, Inc.0.6%
- Next 6 largest institutions1.4%
- All other shareholders76.6%
| Holder | Shares | % of shares |
|---|---|---|
| Siokas (Grigorios) | 14.60M | 14.51% |
| Bovopoulos (Andreas D) | 4.32M | 4.30% |
| Terzis (Georgios) | 2.56M | 2.55% |
| UBS Financial Services, Inc. | 594.46K | 0.59% |
| Vanguard Fiduciary Trust Co | 333.84K | 0.33% |
| Jane Street Capital, L.L.C. | 289.29K | 0.29% |
| Geode Capital Management, L.L.C. | 282.09K | 0.28% |
| BlackRock Institutional Trust Company, N.A. | 267.80K | 0.27% |
| Vanguard Capital Management, LLC | 173.97K | 0.17% |
| Hoidas (John James) | 100.00K | 0.10% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Extended Market Index Fund | 304.12K | 0.30% |
| Fidelity Extended Market Index Fund | 216.33K | 0.21% |
| Fidelity Series Total Market Index Fund | 28.54K | 0.03% |
| Fidelity Total Market Index Fund | 21.66K | 0.02% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders bought $457.00K (5 trades) of COSM on the open market, with no sales.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Siokas Grigorios | Buy | 349.82K | $70.00K |
| Terzis Georgios | Award | 328.41K | $60.00K |
| Siokas Grigorios | Buy | 766.28K | $140.00K |
| Terzis Georgios | Buy | 168.13K | $42.00K |
| Siokas Grigorios | Buy | 218.45K | $45.00K |
| Siokas Grigorios | Buy | 701.45K | $160.00K |
| Karkantzos Theodoros Christos | Other | 35.00K | — |
| Karkantzos Theodoros Christos | Award | 20.00K | $5.66K |
| Hoidas John James | Other | 20.00K | — |
| Hoidas John James | Award | 20.00K | $5.66K |
Short interest
Settled Sep 30, 2026
- Shares short
- 2.56M
- Days to cover
- 1.00
- % of shares outstanding
- 2.54%
- Average daily volume
- 5.05M
- Change since last report
- −15.3%
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