Insider trades › Grigorios Siokas
Grigorios Siokas
A corporate insider: an officer, director or owner of more than 10% of a company. Insiders report their trades to the SEC on Form 4The form insiders use to report each purchase or sale of their company's stock. It is due within two business days of the trade. · Last filing Jul 31, 2026
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Using 13F.ai, list Grigorios Siokas's open-market buys and sells across companies in the last two years, with the Form 4 links.
Using 13F.ai, how did the stocks Grigorios Siokas bought perform after the purchase compared with the S&P 500?
Using 13F.ai, are other insiders at the same companies buying or selling at the same time as Grigorios Siokas?
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Buying and selling by quarter
Dollars bought and sold on the open market over the last two years.
Bought Sold
By trade date, using the shares and price reported for each trade. Stock grants, option exercises and shares withheld for tax are left out.
Roles
The companies where this person reports as an insider, and their position at each, most recent first.
| Company | Role | Last filed |
|---|---|---|
| COSM Cosmos Health Inc. | Chief Executive Officer, Director, 10% owner | Jul 31, 2026 |
Roles come from the filings themselves and can change over time.
Latest open-market trades
Purchases and sales at every company, most recent filing first.
| How the stock has done since the trade date, measured against the S&P 500 over the same days. It describes the stock, not the trader's actual gain or loss. | Filing | ||||||
|---|---|---|---|---|---|---|---|
| Jul 30, 2026 | COSM Cosmos Health Inc. | Buy | 349,825 | $0.20 | $70.0K | -20.8% | Form 4 ↗ |
| Jul 29, 2026 | COSM Cosmos Health Inc. | Buy | 766,284 | $0.18 | $137.9K | -14.7% | Form 4 ↗ |
| Jun 11, 2026 | COSM Cosmos Health Inc. | Buy | 218,447 | $0.21 | $45.9K | -23.6% | Form 4 ↗ |
| Jun 10, 2026 | COSM Cosmos Health Inc. | Buy | 701,447 | $0.23 | $161.3K | -33.0% | Form 4 ↗ |
| Feb 12, 2026 | COSM Cosmos Health Inc. | Buy | 388,532 | $0.37 | $143.8K | -67.3% | Form 4 ↗ |
| Feb 11, 2026 | COSM Cosmos Health Inc. | Buy | 291,262 | $0.41 | $119.4K | -69.7% | Form 4 ↗ |
| Jan 23, 2026 | COSM Cosmos Health Inc. | Buy | 90,325 | $0.50 | $45.2K | -76.9% | Form 4 ↗ |
| Jan 20, 2026 | COSM Cosmos Health Inc. | Buy | 353,321 | $0.50 | $176.7K | -78.6% | Form 4 ↗ |
| Jan 14, 2026 | COSM Cosmos Health Inc. | Buy | 493,495 | $0.45 | $222.1K | -72.9% | Form 4 ↗ |
| Jan 12, 2026 | COSM Cosmos Health Inc. | Buy | 113,185 | $0.50 | $56.6K | -76.3% | Form 4 ↗ |
| Jan 8, 2026 | COSM Cosmos Health Inc. | Buy | 156,190 | $0.52 | $81.2K | -78.2% | Form 4 ↗ |
| Jan 7, 2026 | COSM Cosmos Health Inc. | Buy | 124,880 | $0.52 | $64.9K | -78.3% | Form 4 ↗ |
| Jan 6, 2026 | COSM Cosmos Health Inc. | Buy | 133,953 | $0.54 | $72.3K | -78.9% | Form 4 ↗ |
| Dec 19, 2025 | COSM Cosmos Health Inc. | Buy | 88,314 | $0.49 | $43.3K | -77.6% | Form 4 ↗ |
| Dec 15, 2025 | COSM Cosmos Health Inc. | Buy | 168,472 | $0.42 | $70.8K | -71.8% | Form 4 ↗ |
| Nov 28, 2025 | COSM Cosmos Health Inc. | Buy | 76,360 | $0.64 | $48.9K | -85.1% | Form 4 ↗ |
| Nov 25, 2025 | COSM Cosmos Health Inc. | Buy | 55,732 | $0.63 | $35.1K | -86.0% | Form 4 ↗ |
| Nov 21, 2025 | COSM Cosmos Health Inc. | Buy | 56,080 | $0.68 | $38.1K | -90.6% | Form 4 ↗ |
| Nov 20, 2025 | COSM Cosmos Health Inc. | Buy | 51,315 | $0.62 | $31.8K | -89.6% | Form 4 ↗ |
| Nov 19, 2025 | COSM Cosmos Health Inc. | Buy | 61,614 | $0.65 | $40.0K | -88.9% | Form 4 ↗ |
| May 23, 2025 | COSM Cosmos Health Inc. | Buy | 34,004 | $0.45 | $15.3K | -94.1% | Form 4 ↗ |
| May 22, 2025 | COSM Cosmos Health Inc. | Buy | 141,825 | $0.44 | $62.4K | -92.8% | Form 4 ↗ |
| May 21, 2025 | COSM Cosmos Health Inc. | Buy | 174,172 | $0.47 | $81.9K | -95.0% | Form 4 ↗ |
| May 20, 2025 | COSM Cosmos Health Inc. | Buy | 147,563 | $0.45 | $66.4K | -91.0% | Form 4 ↗ |
| May 19, 2025 | COSM Cosmos Health Inc. | Buy | 79,254 | $0.43 | $34.1K | -89.1% | Form 4 ↗ |
| Apr 24, 2025 | COSM Cosmos Health Inc. | Buy | 254,618 | $0.40 | $101.8K | -97.5% | Form 4 ↗ |
| Apr 24, 2025 | COSM Cosmos Health Inc. | Buy | 177,234 | $0.40 | $70.9K | -97.5% | Form 4 ↗ |
| Apr 23, 2025 | COSM Cosmos Health Inc. | Buy | 205,000 | $0.40 | $82.0K | -100.4% | Form 4 ↗ |
| Apr 22, 2025 | COSM Cosmos Health Inc. | Buy | 175,000 | $0.36 | $63.0K | -98.1% | Form 4 ↗ |
| Apr 21, 2025 | COSM Cosmos Health Inc. | Buy | 654,912 | $0.32 | $209.6K | -95.8% | Form 4 ↗ |
| Mar 4, 2025 | COSM Cosmos Health Inc. | Buy | 85,714 | $0.53 | $45.4K | -99.9% | Form 4 ↗ |
| Mar 3, 2025 | COSM Cosmos Health Inc. | Buy | 132,572 | $0.49 | $65.0K | -96.2% | Form 4 ↗ |
| Feb 24, 2025 | COSM Cosmos Health Inc. | Buy | 354,296 | $0.56 | $198.4K | -97.6% | Form 4 ↗ |
| Jan 30, 2025 | COSM Cosmos Health Inc. | Buy | 51,414 | $0.66 | $33.9K | -100.2% | Form 4 ↗ |
| Jan 22, 2025 | COSM Cosmos Health Inc. | Buy | 38,900 | $0.77 | $30.0K | -103.4% | Form 4 ↗ |
| Jan 17, 2025 | COSM Cosmos Health Inc. | Buy | 29,158 | $0.86 | $25.1K | -107.3% | Form 4 ↗ |
| Jan 16, 2025 | COSM Cosmos Health Inc. | Buy | 47,904 | $0.84 | $40.2K | -108.1% | Form 4 ↗ |
| Jan 15, 2025 | COSM Cosmos Health Inc. | Buy | 62,500 | $0.80 | $50.0K | -107.0% | Form 4 ↗ |
| Jan 14, 2025 | COSM Cosmos Health Inc. | Buy | 87,247 | $0.69 | $60.2K | -106.0% | Form 4 ↗ |
| Jan 13, 2025 | COSM Cosmos Health Inc. | Buy | 163,666 | $0.61 | $99.8K | -103.2% | Form 4 ↗ |
| Dec 20, 2024 | COSM Cosmos Health Inc. | Buy | 257,334 | $0.58 | $149.3K | -99.8% | Form 4 ↗ |
Each row links to its Form 4. Since trade compares the stock’s move from the close on the trade date (or the next trading day) to its latest close with the S&P 500 over the same days, adjusted for splits and excluding dividends. It describes the stock, not what the trader made: we don’t know their purchase price, position size or later sales. A dash means the trade isn’t matched to a listed stock, or there is no closing price after it yet.
When several people report on the same filing, we list it under the first one named, so trades by someone usually listed second may be missing here. Information, not investment advice: see the disclaimer.