Hamann Jennifer L (CIK 1798280) reported 37 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-08-14). Recent activity: Buy STLD (72 shares), Buy UNP (8 shares), Buy STLD (18 shares), Buy UNP (8 shares), Buy UNP (9 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-14 | STEEL DYNAMICS INC (STLD) | Director | Buy | 72 | $0 |
| 2026-08-11 | UNION PACIFIC CORP (UNP) | EVP & CHIEF FINANCIAL OFFICER | Buy | 8 | $2,325 |
| 2026-07-14 | STEEL DYNAMICS INC (STLD) | Director | Buy | 18 | $0 |
| 2026-07-13 | UNION PACIFIC CORP (UNP) | EVP & CHIEF FINANCIAL OFFICER | Buy | 8 | $2,325 |
| 2026-06-11 | UNION PACIFIC CORP (UNP) | EVP & CHIEF FINANCIAL OFFICER | Buy | 9 | $2,325 |
| 2026-06-01 | STEEL DYNAMICS INC (STLD) | Director | Buy | 712 | $0 |
| 2026-05-11 | UNION PACIFIC CORP (UNP) | EVP & CHIEF FINANCIAL OFFICER | Buy | 9 | $2,325 |
| 2026-05-07 | STEEL DYNAMICS INC (STLD) | Director | Buy | 79 | $0 |
| 2026-04-28 | UNION PACIFIC CORP (UNP) | EVP & CHIEF FINANCIAL OFFICER | Sell | 2,000 | $549,400 |
| 2026-04-13 | UNION PACIFIC CORP (UNP) | EVP & CHIEF FINANCIAL OFFICER | Buy | 9 | $2,325 |
| 2026-04-13 | STEEL DYNAMICS INC (STLD) | Director | Buy | 16 | $0 |
| 2026-03-11 | UNION PACIFIC CORP (UNP) | EVP & CHIEF FINANCIAL OFFICER | Buy | 9 | $2,132 |
| 2026-02-23 | STEEL DYNAMICS INC (STLD) | Director | Buy | 99 | $0 |
| 2026-02-12 | UNION PACIFIC CORP (UNP) | EVP & CHIEF FINANCIAL OFFICER | Buy | 4,243 | $529,781 |
| 2026-02-12 | UNION PACIFIC CORP (UNP) | EVP & CHIEF FINANCIAL OFFICER | Sell | 902 | $237,055 |
| 2026-02-12 | UNION PACIFIC CORP (UNP) | EVP & CHIEF FINANCIAL OFFICER | Sell | 2,016 | $529,825 |
| 2026-02-11 | UNION PACIFIC CORP (UNP) | EVP & CHIEF FINANCIAL OFFICER | Sell | 8,769 | $0 |
| 2026-02-11 | UNION PACIFIC CORP (UNP) | EVP & CHIEF FINANCIAL OFFICER | Sell | 2,680 | $681,631 |
| 2026-02-11 | UNION PACIFIC CORP (UNP) | EVP & CHIEF FINANCIAL OFFICER | Buy | 8 | $2,132 |
| 2026-02-06 | UNION PACIFIC CORP (UNP) | EVP & CHIEF FINANCIAL OFFICER | Buy | 17,898 | $0 |
| 2026-01-12 | STEEL DYNAMICS INC (STLD) | Director | Buy | 15 | $0 |
| 2025-12-04 | UNION PACIFIC CORP (UNP) | EVP & CHIEF FINANCIAL OFFICER | Sell | 300 | $0 |
| 2025-11-06 | STEEL DYNAMICS INC (STLD) | Director | Buy | 122 | $0 |
| 2025-10-14 | STEEL DYNAMICS INC (STLD) | Director | Buy | 16 | $0 |
| 2025-10-14 | UNION PACIFIC CORP (UNP) | EVP & CHIEF FINANCIAL OFFICER | Buy | 5 | $1,062 |
Source: SEC Form 4 filings · as of 2026-08-14