🕵️ Black Hills Corp /SD/ ($BKH)
SEC insider & ownership activity, last 12 months · CIK 1130464 · every row links its SEC filing
Over the last 12 months insiders sold $1.3M with no open-market buying against it. Kimberly F. Nooney sold $1.0M in discretionary trades (Nov). Blackrock, Inc. trimmed 16.1% → 14.6%. No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 2 sellers, $1.3M (2 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Kimberly F. Nooney | 0 | – | 1 | $1.0M | Nov 10, 2025 |
| Robert P. Otto | 0 | – | 1 | $305K | May 27, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Blackrock, Inc. | 14.6% | 13G | Apr 30, 2025 | filing ↗ | |
| Vanguard Portfolio Management | 6.7% | 13G | Apr 29, 2026 | filing ↗ | |
| Vanguard Capital Management | 5.2% | 13G | Apr 29, 2026 | filing ↗ |
Planned insider sales (Form 144)
No sale notices filed in the last 12 months.
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Other events (8.01) | May 15, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 15, 2026 | filing ↗ |
| Earnings (2.02) | May 6, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 6, 2026 | filing ↗ |
| Shareholder vote (5.07) | Apr 29, 2026 | filing ↗ |
| Shareholder vote (5.07) | Apr 2, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Apr 2, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 2, 2026 | filing ↗ |
| Other events (8.01) | Feb 19, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 19, 2026 | filing ↗ |
| Earnings (2.02) | Feb 4, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 4, 2026 | filing ↗ |
| Earnings (2.02) | Nov 5, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 5, 2025 | filing ↗ |
| Material agreement (1.01) | Oct 2, 2025 | filing ↗ |
| New financial obligation (2.03) | Oct 2, 2025 | filing ↗ |
| Other events (8.01) | Oct 2, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 2, 2025 | filing ↗ |
| Material agreement (1.01) | Sep 25, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 25, 2025 | filing ↗ |
| Other events (8.01) | Sep 15, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 15, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Aug 19, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 19, 2025 | filing ↗ |
| Material agreement (1.01) | Aug 18, 2025 | filing ↗ |
| Officer/director changes (5.02) | Aug 18, 2025 | filing ↗ |
| Charter/bylaw changes (5.03) | Aug 18, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Aug 18, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 18, 2025 | filing ↗ |
| Earnings (2.02) | Jul 30, 2025 | filing ↗ |