Insider trades › SK Inc.
SK Inc.
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, 2025
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Using 13F.ai, list SK Inc.'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 SK Inc. 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 SK Inc.?
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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.
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 15, 2025 | NPWR NET Power Inc. | Sale | 2.50M | $2.61 | $6.5M | -95.6% | Form 4 ↗ |
| Dec 18, 2024 | SES SES AI Corporation | Sale | 400,000 | $0.42 | $168.0K | +4.4% | Form 4 ↗ |
| Dec 17, 2024 | SES SES AI Corporation | Sale | 326,460 | $0.38 | $124.1K | +15.1% | Form 4 ↗ |
| Dec 16, 2024 | SES SES AI Corporation | Sale | 500,000 | $0.40 | $200.0K | +4.3% | Form 4 ↗ |
| Dec 13, 2024 | SES SES AI Corporation | Sale | 417,857 | $0.39 | $163.0K | +4.6% | Form 4 ↗ |
| Dec 12, 2024 | SES SES AI Corporation | Sale | 115,508 | $0.42 | $48.5K | +3.0% | Form 4 ↗ |
| Dec 11, 2024 | SES SES AI Corporation | Sale | 300,000 | $0.44 | $132.0K | -9.1% | Form 4 ↗ |
| Dec 10, 2024 | SES SES AI Corporation | Sale | 16,120 | $0.45 | $7,254 | -4.8% | Form 4 ↗ |
| Dec 9, 2024 | SES SES AI Corporation | Sale | 400,000 | $0.48 | $192.0K | -16.2% | Form 4 ↗ |
| Nov 22, 2024 | NPWR NET Power Inc. | Sale | 431,009 | $12.76 | $5.5M | -120.7% | Form 4 ↗ |
| Nov 21, 2024 | NPWR NET Power Inc. | Sale | 509,040 | $12.72 | $6.5M | -121.1% | Form 4 ↗ |
| Nov 20, 2024 | NPWR NET Power Inc. | Sale | 320,371 | $12.60 | $4.0M | -121.8% | Form 4 ↗ |
| Nov 14, 2024 | SES SES AI Corporation | Sale | 300,000 | $0.30 | $90.0K | +41.1% | Form 4 ↗ |
| Nov 13, 2024 | SES SES AI Corporation | Sale | 250,000 | $0.28 | $70.0K | +52.5% | Form 4 ↗ |
| Nov 11, 2024 | SES SES AI Corporation | Sale | 170,248 | $0.36 | $61.3K | +21.2% | Form 4 ↗ |
| Nov 8, 2024 | SES SES AI Corporation | Sale | 103,115 | $0.37 | $38.2K | +16.1% | Form 4 ↗ |
| Nov 7, 2024 | SES SES AI Corporation | Sale | 154,105 | $0.39 | $60.1K | +11.8% | Form 4 ↗ |
| Nov 6, 2024 | SES SES AI Corporation | Sale | 4,461 | $0.42 | $1,874 | +3.1% | Form 4 ↗ |
| Nov 5, 2024 | SES SES AI Corporation | Sale | 200,000 | $0.43 | $86.0K | -9.2% | Form 4 ↗ |
| Nov 4, 2024 | SES SES AI Corporation | Sale | 200,000 | $0.45 | $90.0K | -14.6% | Form 4 ↗ |
| Nov 1, 2024 | SES SES AI Corporation | Sale | 147,794 | $0.45 | $66.5K | -14.8% | Form 4 ↗ |
| Oct 31, 2024 | SES SES AI Corporation | Sale | 2,200 | $0.50 | $1,100 | -20.7% | Form 4 ↗ |
| Oct 30, 2024 | SES SES AI Corporation | Sale | 19,250 | $0.56 | $10.8K | -27.6% | Form 4 ↗ |
| Oct 29, 2024 | SES SES AI Corporation | Sale | 235,327 | $0.57 | $134.1K | -35.4% | Form 4 ↗ |
| Oct 28, 2024 | SES SES AI Corporation | Sale | 217,655 | $0.58 | $126.2K | -38.4% | Form 4 ↗ |
| Oct 25, 2024 | SES SES AI Corporation | Sale | 250,000 | $0.58 | $145.0K | -37.5% | Form 4 ↗ |
| Oct 24, 2024 | SES SES AI Corporation | Sale | 290,703 | $0.62 | $180.2K | -42.8% | Form 4 ↗ |
| Oct 23, 2024 | SES SES AI Corporation | Sale | 350,505 | $0.67 | $234.8K | -47.3% | Form 4 ↗ |
| Oct 22, 2024 | SES SES AI Corporation | Sale | 437,785 | $0.67 | $293.3K | -52.5% | Form 4 ↗ |
| Oct 21, 2024 | SES SES AI Corporation | Sale | 500,000 | $0.69 | $345.0K | -53.9% | Form 4 ↗ |
| Oct 18, 2024 | SES SES AI Corporation | Sale | 400,000 | $0.61 | $244.0K | -46.1% | Form 4 ↗ |
| Oct 17, 2024 | SES SES AI Corporation | Sale | 210,500 | $0.59 | $124.2K | -36.8% | Form 4 ↗ |
| Oct 17, 2024 | NPWR NET Power Inc. | Sale | 199,369 | $7.33 | $1.5M | -120.1% | Form 4 ↗ |
| Oct 16, 2024 | SES SES AI Corporation | Sale | 400,000 | $0.60 | $240.0K | -43.0% | Form 4 ↗ |
| Oct 16, 2024 | NPWR NET Power Inc. | Sale | 517,618 | $7.12 | $3.7M | -119.0% | Form 4 ↗ |
| Oct 15, 2024 | SES SES AI Corporation | Sale | 364,898 | $0.61 | $222.6K | -41.3% | Form 4 ↗ |
| Oct 14, 2024 | SES SES AI Corporation | Sale | 400,000 | $0.62 | $248.0K | -44.0% | Form 4 ↗ |
| Oct 11, 2024 | SES SES AI Corporation | Sale | 400,000 | $0.61 | $244.0K | -45.6% | Form 4 ↗ |
| Oct 10, 2024 | SES SES AI Corporation | Sale | 200,000 | $0.57 | $114.0K | -37.4% | Form 4 ↗ |
| Oct 11, 2024 | NPWR NET Power Inc. | Sale | 120,500 | $6.92 | $833.9K | -119.2% | Form 4 ↗ |
| Oct 9, 2024 | NPWR NET Power Inc. | Sale | 122,591 | $6.95 | $852.0K | -119.6% | Form 4 ↗ |
| Oct 9, 2024 | SES SES AI Corporation | Sale | 2,481 | $0.60 | $1,489 | -40.5% | Form 4 ↗ |
| Oct 8, 2024 | SES SES AI Corporation | Sale | 71,256 | $0.60 | $42.8K | -42.8% | Form 4 ↗ |
| Oct 7, 2024 | SES SES AI Corporation | Sale | 82,429 | $0.60 | $49.5K | -44.1% | Form 4 ↗ |
| Oct 4, 2024 | SES SES AI Corporation | Sale | 100,000 | $0.61 | $61.0K | -45.7% | Form 4 ↗ |
| Oct 7, 2024 | NPWR NET Power Inc. | Sale | 8,871 | $7.01 | $62.2K | -122.1% | Form 4 ↗ |
| Oct 7, 2024 | NPWR NET Power Inc. | Sale | 54,922 | $7.00 | $384.5K | -122.1% | Form 4 ↗ |
| Oct 4, 2024 | NPWR NET Power Inc. | Sale | 5,419 | $7.01 | $38.0K | -120.9% | Form 4 ↗ |
| Oct 3, 2024 | NPWR NET Power Inc. | Sale | 10,433 | $7.00 | $73.0K | -122.0% | Form 4 ↗ |
| Oct 3, 2024 | SES SES AI Corporation | Sale | 587 | $0.60 | $352 | -43.8% | Form 4 ↗ |
| Oct 2, 2024 | SES SES AI Corporation | Sale | 243,951 | $0.60 | $146.4K | -43.7% | Form 4 ↗ |
| Oct 1, 2024 | SES SES AI Corporation | Sale | 908,178 | $0.61 | $554.0K | -44.2% | Form 4 ↗ |
| Sep 30, 2024 | SES SES AI Corporation | Sale | 71,176 | $0.70 | $49.8K | -48.7% | Form 4 ↗ |
| Sep 30, 2024 | NPWR NET Power Inc. | Sale | 46,585 | $7.07 | $329.4K | -120.7% | Form 4 ↗ |
| Sep 23, 2024 | NPWR NET Power Inc. | Sale | 1,764 | $7.00 | $12.3K | -121.3% | Form 4/A ↗ |
| Sep 20, 2024 | NPWR NET Power Inc. | Sale | 26,928 | $7.00 | $188.5K | -121.9% | Form 4/A ↗ |
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.