Sk INC. insider trades
Sk INC. has filed 33 Form 4s with the SEC that we hold, for SES AI Corp (SES) (10% owner) and Net Power Inc. (NPWR) (10% owner). Across all of them we count 0 purchases worth $0 and 62 sales worth $68.0M reported on Form 4. None of these purchases or sales is dated in the last 12 months. The largest single trade was a sale of 2,500,000 shares of Net Power Inc. worth $25.1M, dated 2024-05-23. The first filing on our record is dated 2024-05-28 and the latest 2025-07-31.
SES AI Corp (SES)
10% owner · 21 filings · 41 purchases and sales
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2024-09-30 | S, sale reported on Form 4 | 71,176 | $49.8K | 2024-10-02 |
| 2024-10-01 | S, sale reported on Form 4 | 908,178 | $554.0K | 2024-10-02 |
| 2024-10-02 | S, sale reported on Form 4 | 243,951 | $146.4K | 2024-10-04 |
| 2024-10-03 | S, sale reported on Form 4 | 587 | $352 | 2024-10-04 |
| 2024-10-04 | S, sale reported on Form 4 | 100,000 | $61.0K | 2024-10-08 |
| 2024-10-07 | S, sale reported on Form 4 | 82,429 | $49.5K | 2024-10-08 |
| 2024-10-08 | S, sale reported on Form 4 | 71,256 | $42.8K | 2024-10-10 |
| 2024-10-09 | S, sale reported on Form 4 | 2,481 | $1.5K | 2024-10-10 |
| 2024-10-10 | S, sale reported on Form 4 | 200,000 | $114.0K | 2024-10-15 |
| 2024-10-11 | S, sale reported on Form 4 | 400,000 | $244.0K | 2024-10-15 |
| 2024-10-14 | S, sale reported on Form 4 | 400,000 | $248.0K | 2024-10-16 |
| 2024-10-15 | S, sale reported on Form 4 | 364,898 | $222.6K | 2024-10-16 |
| 2024-10-16 | S, sale reported on Form 4 | 400,000 | $240.0K | 2024-10-18 |
| 2024-10-17 | S, sale reported on Form 4 | 210,500 | $124.2K | 2024-10-18 |
| 2024-10-18 | S, sale reported on Form 4 | 400,000 | $244.0K | 2024-10-22 |
| 2024-10-21 | S, sale reported on Form 4 | 500,000 | $345.0K | 2024-10-22 |
| 2024-10-22 | S, sale reported on Form 4 | 437,785 | $293.3K | 2024-10-24 |
| 2024-10-23 | S, sale reported on Form 4 | 350,505 | $234.8K | 2024-10-24 |
| 2024-10-24 | S, sale reported on Form 4 | 290,703 | $180.2K | 2024-10-28 |
| 2024-10-25 | S, sale reported on Form 4 | 250,000 | $145.0K | 2024-10-28 |
| 2024-10-28 | S, sale reported on Form 4 | 217,655 | $126.2K | 2024-10-30 |
| 2024-10-29 | S, sale reported on Form 4 | 235,327 | $134.1K | 2024-10-30 |
| 2024-10-30 | S, sale reported on Form 4 | 19,250 | $10.8K | 2024-11-01 |
| 2024-10-31 | S, sale reported on Form 4 | 2,200 | $1.1K | 2024-11-01 |
| 2024-11-01 | S, sale reported on Form 4 | 147,794 | $66.5K | 2024-11-05 |
| 2024-11-04 | S, sale reported on Form 4 | 200,000 | $90.0K | 2024-11-05 |
| 2024-11-05 | S, sale reported on Form 4 | 200,000 | $86.0K | 2024-11-07 |
| 2024-11-06 | S, sale reported on Form 4 | 4,461 | $1.9K | 2024-11-07 |
| 2024-11-07 | S, sale reported on Form 4 | 154,105 | $60.1K | 2024-11-12 |
| 2024-11-08 | S, sale reported on Form 4 | 103,115 | $38.2K | 2024-11-12 |
| 2024-11-11 | S, sale reported on Form 4 | 170,248 | $61.3K | 2024-11-13 |
| 2024-11-13 | S, sale reported on Form 4 | 250,000 | $70.0K | 2024-11-15 |
| 2024-11-14 | S, sale reported on Form 4 | 300,000 | $90.0K | 2024-11-15 |
| 2024-12-09 | S, sale reported on Form 4 | 400,000 | $192.0K | 2024-12-11 |
| 2024-12-10 | S, sale reported on Form 4 | 16,120 | $7.3K | 2024-12-11 |
| 2024-12-11 | S, sale reported on Form 4 | 300,000 | $132.0K | 2024-12-13 |
| 2024-12-12 | S, sale reported on Form 4 | 115,508 | $48.5K | 2024-12-13 |
| 2024-12-13 | S, sale reported on Form 4 | 417,857 | $163.0K | 2024-12-17 |
| 2024-12-16 | S, sale reported on Form 4 | 500,000 | $200.0K | 2024-12-17 |
| 2024-12-17 | S, sale reported on Form 4 | 326,460 | $124.1K | 2024-12-19 |
| 2024-12-18 | S, sale reported on Form 4 | 400,000 | $168.0K | 2024-12-19 |
Net Power Inc. (NPWR)
10% owner · 12 filings · 21 purchases and sales
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2024-05-23 | S, sale reported on Form 4 | 2,500,000 | $25.1M | 2024-05-28 |
| 2024-09-17 | S, sale reported on Form 4 | 144,959 | $1.0M | 2024-09-19 |
| 2024-09-18 | S, sale reported on Form 4 | 80,122 | $562.5K | 2024-09-19 |
| 2024-09-19 | S, sale reported on Form 4 | 400,000 | $2.8M | 2024-09-19 |
| 2024-09-19 | S, sale reported on Form 4 | 342,364 | $2.4M | 2024-09-19 |
| 2024-09-20 | S, sale reported on Form 4 | 26,926 | $188.5K | 2024-09-24 |
| 2024-09-20 | S, sale reported on Form 4 | 26,928 | $188.5K | 2024-10-02 |
| 2024-09-23 | S, sale reported on Form 4 | 1,764 | $12.3K | 2024-10-02 |
| 2024-09-30 | S, sale reported on Form 4 | 46,585 | $329.4K | 2024-10-02 |
| 2024-10-03 | S, sale reported on Form 4 | 10,433 | $73.0K | 2024-10-07 |
| 2024-10-04 | S, sale reported on Form 4 | 5,419 | $38.0K | 2024-10-07 |
| 2024-10-07 | S, sale reported on Form 4 | 8,871 | $62.2K | 2024-10-07 |
| 2024-10-07 | S, sale reported on Form 4 | 54,922 | $384.5K | 2024-10-07 |
| 2024-10-09 | S, sale reported on Form 4 | 122,591 | $852.0K | 2024-10-11 |
| 2024-10-11 | S, sale reported on Form 4 | 120,500 | $833.9K | 2024-10-11 |
| 2024-10-16 | S, sale reported on Form 4 | 517,618 | $3.7M | 2024-10-18 |
| 2024-10-17 | S, sale reported on Form 4 | 199,369 | $1.5M | 2024-10-18 |
| 2024-11-20 | S, sale reported on Form 4 | 320,371 | $4.0M | 2024-11-21 |
| 2024-11-21 | S, sale reported on Form 4 | 509,040 | $6.5M | 2024-11-21 |
| 2024-11-22 | S, sale reported on Form 4 | 431,009 | $5.5M | 2024-11-26 |
| 2025-07-15 | S, sale reported on Form 4 | 2,500,000 | $6.5M | 2025-07-17 |
Source
Counted from the Form 4 filings this reporting owner (SEC CIK 1947998) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.
Source: U.S. Securities and Exchange Commission (EDGAR) and other official
government data · Updated 2026-10-12 ·
For informational purposes only, not investment advice.
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