SK INC. — SEC Form 4 filings
SEC reporting owner CIK 1947998. 36 Form 4 filings on record with FilingPulse; latest filed 2025-07-31.
Transaction summary — filings shown
Covers all 36 filings on record, filed 2024-05-28 to 2025-07-31. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 72 legs across 35 filings — 18,968,659 shares, $71,358,487 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 14.
- Largest priced transaction: sale of 2,500,000 shares @ $10.04 ($25,100,000) in NET Power Inc., filed 2024-05-28.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| NET Power Inc. (NPWR) | 10% owner | 15 | — | 31 legs · 8,804,110 sh · $65,947,113 | 14 |
| SES AI Corp (SES) | 10% owner | 21 | — | 41 legs · 10,164,549 sh · $5,411,374 | — |
Form 4 filings — SK INC.
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2025-07-31 | 4 | NET Power Inc. (NPWR) | Other (J): 26,729,880 · Other (J): 26,729,880 (derivative) | EDGAR |
| 2025-07-17 | 4 | NET Power Inc. (NPWR) | Sale (S): 2,500,000 @ $2.61 | EDGAR |
| 2024-12-19 | 4 | SES AI Corp (SES) | Sale (S): 326,460 @ $0.38 · Sale (S): 400,000 @ $0.42 | EDGAR |
| 2024-12-17 | 4 | SES AI Corp (SES) | Sale (S): 417,857 @ $0.39 · Sale (S): 500,000 @ $0.40 | EDGAR |
| 2024-12-13 | 4 | SES AI Corp (SES) | Sale (S): 300,000 @ $0.44 · Sale (S): 115,508 @ $0.42 | EDGAR |
| 2024-12-11 | 4 | SES AI Corp (SES) | Sale (S): 400,000 @ $0.48 · Sale (S): 16,120 @ $0.45 | EDGAR |
| 2024-11-26 | 4 | NET Power Inc. (NPWR) jointly with 8 Rivers Capital, LLC | Sale (S): 431,009 @ $12.76 | EDGAR |
| 2024-11-21 | 4 | NET Power Inc. (NPWR) jointly with 8 Rivers Capital, LLC | Conversion (C): 1,260,420 · Other (J): 1,260,420 · Sale (S): 320,371 @ $12.60 · Sale (S): 509,040 @ $12.72 · Conversion (C): 1,260,420 (derivative) | EDGAR |
| 2024-11-15 | 4 | SES AI Corp (SES) | Sale (S): 250,000 @ $0.28 · Sale (S): 300,000 @ $0.30 | EDGAR |
| 2024-11-13 | 4 | SES AI Corp (SES) | Sale (S): 170,248 @ $0.36 | EDGAR |
| 2024-11-12 | 4 | SES AI Corp (SES) | Sale (S): 154,105 @ $0.39 · Sale (S): 103,115 @ $0.37 | EDGAR |
| 2024-11-07 | 4 | SES AI Corp (SES) | Sale (S): 200,000 @ $0.43 · Sale (S): 4,461 @ $0.42 | EDGAR |
| 2024-11-05 | 4 | SES AI Corp (SES) | Sale (S): 147,794 @ $0.45 · Sale (S): 200,000 @ $0.45 | EDGAR |
| 2024-11-01 | 4 | SES AI Corp (SES) | Sale (S): 19,250 @ $0.56 · Sale (S): 2,200 @ $0.50 | EDGAR |
| 2024-10-30 | 4 | SES AI Corp (SES) | Sale (S): 217,655 @ $0.58 · Sale (S): 235,327 @ $0.57 | EDGAR |
| 2024-10-28 | 4 | SES AI Corp (SES) | Sale (S): 290,703 @ $0.62 · Sale (S): 250,000 @ $0.58 | EDGAR |
| 2024-10-24 | 4 | SES AI Corp (SES) | Sale (S): 437,785 @ $0.67 · Sale (S): 350,505 @ $0.67 | EDGAR |
| 2024-10-22 | 4 | SES AI Corp (SES) | Sale (S): 400,000 @ $0.61 · Sale (S): 500,000 @ $0.69 | EDGAR |
| 2024-10-18 | 4 | SES AI Corp (SES) | Sale (S): 400,000 @ $0.60 · Sale (S): 210,500 @ $0.59 | EDGAR |
| 2024-10-18 | 4 | NET Power Inc. (NPWR) jointly with 8 Rivers Capital, LLC | Sale (S): 517,618 @ $7.12 · Sale (S): 199,369 @ $7.33 | EDGAR |
| 2024-10-16 | 4 | SES AI Corp (SES) | Sale (S): 400,000 @ $0.62 · Sale (S): 364,898 @ $0.61 | EDGAR |
| 2024-10-15 | 4 | SES AI Corp (SES) | Sale (S): 200,000 @ $0.57 · Sale (S): 400,000 @ $0.61 | EDGAR |
| 2024-10-11 | 4 | NET Power Inc. (NPWR) jointly with 8 Rivers Capital, LLC | Sale (S): 122,591 @ $6.95 · Sale (S): 120,500 @ $6.92 | EDGAR |
| 2024-10-10 | 4 | SES AI Corp (SES) | Sale (S): 71,256 @ $0.60 · Sale (S): 2,481 @ $0.60 | EDGAR |
| 2024-10-08 | 4 | SES AI Corp (SES) | Sale (S): 100,000 @ $0.61 · Sale (S): 82,429 @ $0.60 | EDGAR |
| 2024-10-07 | 4 | NET Power Inc. (NPWR) jointly with 8 Rivers Capital, LLC | Conversion (C): 1,015,000 · Other (J): 1,015,000 · Sale (S): 10,433 @ $7.00 · Sale (S): 5,419 @ $7.01 · Sale (S): 8,871 @ $7.01 · Sale (S): 54,922 @ $7.00 · +1 more | EDGAR |
| 2024-10-04 | 4 | SES AI Corp (SES) | Sale (S): 243,951 @ $0.60 · Sale (S): 587 @ $0.60 | EDGAR |
| 2024-10-02 | 4 | SES AI Corp (SES) | Sale (S): 71,176 @ $0.70 · Sale (S): 908,178 @ $0.61 | EDGAR |
| 2024-10-02 | 4/A | NET Power Inc. (NPWR) jointly with 8 Rivers Capital, LLC | Sale (S): 26,928 @ $7.00 · Sale (S): 1,764 @ $7.00 | EDGAR |
| 2024-10-02 | 4 | NET Power Inc. (NPWR) jointly with 8 Rivers Capital, LLC | Sale (S): 46,585 @ $7.07 | EDGAR |
| 2024-09-24 | 4 | NET Power Inc. (NPWR) jointly with 8 Rivers Capital, LLC | Sale (S): 26,926 @ $7.00 · Sale (S): 1,764 @ $7.00 | EDGAR |
| 2024-09-19 | 4 | NET Power Inc. (NPWR) jointly with 8 Rivers Capital, LLC | Sale (S): 144,959 @ $7.04 · Sale (S): 80,122 @ $7.02 · Sale (S): 342,364 @ $7.06 · Sale (S): 400,000 @ $7.05 | EDGAR |
| 2024-09-16 | 4 | NET Power Inc. (NPWR) jointly with 8 Rivers Capital, LLC | Sale (S): 2,315 @ $7.26 · Sale (S): 1,340 @ $7.26 · Sale (S): 36,752 @ $7.05 · Conversion (C): 500,000 · Other (J): 500,000 · Conversion (C): 500,000 (derivative) @ $0 | EDGAR |
| 2024-09-11 | 4 | NET Power Inc. (NPWR) jointly with 8 Rivers Capital, LLC | Sale (S): 60,022 @ $7.60 · Sale (S): 300 @ $7.31 · Sale (S): 21,155 @ $7.28 | EDGAR |
| 2024-09-06 | 4 | NET Power Inc. (NPWR) jointly with 8 Rivers Capital, LLC | Conversion (C): 500,000 · Other (J): 500,000 · Sale (S): 83,325 @ $8.10 · Sale (S): 160,521 @ $7.94 · Sale (S): 66,825 @ $7.88 · Conversion (C): 500,000 (derivative) @ $0 | EDGAR |
| 2024-05-28 | 4 | NET Power Inc. (NPWR) | Sale (S): 2,500,000 @ $10.04 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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