SK INC. has filed 45 insider transactions across 2 companies since May 2024.
Most recent transaction: a transaction of 26729880 shares of NET Power Inc. ($NPWR) on July 30, 2025.
Activity breakdown: 0 open-market purchases and 43 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| July 30, 2025 | NET Power Inc. | $NPWR | SK INC. | TenPercentOwner | J | Class B Common Stock | 26729880 | $0.00 | 0.0000 | 141,340,000 | 100.00% | 18.91% |
| July 30, 2025 | NET Power Inc. | $NPWR | SK INC. | TenPercentOwner | J | Class A Units of NET Power Operations LLC | 26729880 | $0.00 | 0.0000 | 141,340,000 | 100.00% | 18.91% |
| July 15, 2025 | NET Power Inc. | $NPWR | SK INC. | Not found | S | Class A Common Stock | 2500000 | $2.61 | 0.0000 | 141,340,000 | 100.00% | 1.77% |
| Dec. 17, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 326460 | $0.38 | 32,243,210.0000 | 322,032,894 | 1.00% | 0.10% |
| Dec. 18, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 400000 | $0.42 | 31,843,210.0000 | 322,032,894 | 1.24% | 0.12% |
| Dec. 16, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 500000 | $0.40 | 32,569,670.0000 | 322,032,894 | 1.51% | 0.16% |
| Dec. 13, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 417857 | $0.39 | 33,069,670.0000 | 322,032,894 | 1.25% | 0.13% |
| Dec. 11, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 300000 | $0.44 | 33,603,035.0000 | 322,032,894 | 0.88% | 0.09% |
| Dec. 12, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 115508 | $0.42 | 33,487,527.0000 | 322,032,894 | 0.34% | 0.04% |
| Dec. 9, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 400000 | $0.48 | 33,919,155.0000 | 322,032,894 | 1.17% | 0.12% |
| Dec. 10, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 16120 | $0.45 | 33,903,035.0000 | 322,032,894 | 0.05% | 0.01% |
| Nov. 14, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 300000 | $0.30 | 34,319,155.0000 | 322,032,894 | 0.87% | 0.09% |
| Nov. 13, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 250000 | $0.28 | 34,619,155.0000 | 322,032,894 | 0.72% | 0.08% |
| Nov. 11, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 170248 | $0.36 | 34,869,155.0000 | 322,032,894 | 0.49% | 0.05% |
| Nov. 7, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 154105 | $0.39 | 35,142,518.0000 | 322,032,894 | 0.44% | 0.05% |
| Nov. 8, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 103115 | $0.37 | 35,039,403.0000 | 322,032,894 | 0.29% | 0.03% |
| Nov. 5, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 200000 | $0.43 | 35,301,084.0000 | 322,032,894 | 0.56% | 0.06% |
| Nov. 6, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 4461 | $0.42 | 35,296,623.0000 | 322,032,894 | 0.01% | 0.00% |
| Nov. 1, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 147794 | $0.45 | 35,701,084.0000 | 322,032,894 | 0.41% | 0.05% |
| Nov. 4, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 200000 | $0.45 | 35,501,084.0000 | 322,032,894 | 0.56% | 0.06% |
| Oct. 31, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 2200 | $0.50 | 35,848,878.0000 | 322,032,894 | 0.01% | 0.00% |
| Oct. 30, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 19250 | $0.56 | 35,851,078.0000 | 322,032,894 | 0.05% | 0.01% |
| Oct. 28, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 217655 | $0.58 | 36,105,655.0000 | 322,032,894 | 0.60% | 0.07% |
| Oct. 29, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 235327 | $0.57 | 35,870,328.0000 | 322,032,894 | 0.65% | 0.07% |
| Oct. 24, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 290703 | $0.62 | 36,573,310.0000 | 322,032,894 | 0.79% | 0.09% |
| Oct. 25, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 250000 | $0.58 | 36,323,310.0000 | 322,032,894 | 0.68% | 0.08% |
| Oct. 23, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 350505 | $0.67 | 36,864,013.0000 | 322,032,894 | 0.94% | 0.11% |
| Oct. 22, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 437785 | $0.67 | 37,214,518.0000 | 322,032,894 | 1.16% | 0.14% |
| Oct. 18, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 400000 | $0.61 | 38,152,803.0000 | 322,032,894 | 1.04% | 0.12% |
| Oct. 21, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 500000 | $0.69 | 37,652,303.0000 | 322,032,894 | 1.31% | 0.16% |
| Oct. 16, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 400000 | $0.60 | 38,762,803.0000 | 322,032,894 | 1.02% | 0.12% |
| Oct. 17, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 210500 | $0.59 | 38,552,303.0000 | 322,032,894 | 0.54% | 0.07% |
| Oct. 14, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 400000 | $0.62 | 39,527,701.0000 | 322,032,894 | 1.00% | 0.12% |
| Oct. 15, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 364898 | $0.61 | 39,162,803.0000 | 322,032,894 | 0.92% | 0.11% |
| Oct. 10, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 200000 | $0.57 | 40,327,701.0000 | 322,032,894 | 0.49% | 0.06% |
| Oct. 11, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 400000 | $0.61 | 39,927,701.0000 | 322,032,894 | 0.99% | 0.12% |
| Oct. 8, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 71256 | $0.60 | 40,530,182.0000 | 322,032,894 | 0.18% | 0.02% |
| Oct. 9, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 2481 | $0.60 | 40,527,701.0000 | 322,032,894 | 0.01% | 0.00% |
| Oct. 4, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 100000 | $0.61 | 40,683,867.0000 | 322,032,894 | 0.25% | 0.03% |
| Oct. 7, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 82429 | $0.60 | 40,601,438.0000 | 322,032,894 | 0.20% | 0.03% |
| Oct. 2, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 243951 | $0.60 | 40,784,454.0000 | 322,032,894 | 0.59% | 0.08% |
| Oct. 3, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 587 | $0.60 | 40,783,867.0000 | 322,032,894 | 0.00% | 0.00% |
| Oct. 1, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 908178 | $0.61 | 41,028,405.0000 | 322,032,894 | 2.17% | 0.28% |
| Sept. 30, 2024 | SES AI Corp | $SES | SK INC. | Not found | S | Class A Common Stock | 71176 | $0.70 | 41,936,583.0000 | 320,833,854 | 0.17% | 0.02% |
| May 23, 2024 | NET Power Inc. | $NPWR | SK INC. | TenPercentOwner | S | Class A Common Stock | 2500000 | $10.04 | 2,500,000.0000 | 71,970,000 | 50.00% | 3.47% |