Worthington Steel's top three insider shareholders as of September 29, 2026 are Geoffrey G Gilmore (President And Ceo, 348.97K shares), John B Blystone (Executive Chairman, 241.96K shares), Jeffrey R Klingler (Chief Operating Officer, 103.70K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Geoffrey G Gilmore | President And Ceo | 348,966 | 0 | 348,966 | 26.4% | 08 Jul, 2026 |
| 2 | John B Blystone | Executive Chairman | 241,957 | 0 | 241,957 | 18.3% | 08 Jul, 2026 |
| 3 | Jeffrey R Klingler | Chief Operating Officer | 103,698 | 0 | 103,698 | 7.8% | 08 Jul, 2026 |
| 4 | Mary Fackler Schiavo | Director | 96,779 | 0 | 96,779 | 7.3% | 26 Jan, 2026 |
| 5 | Carl A Jr Nelson | Director | 89,957 | 0 | 89,957 | 6.8% | 01 Oct, 2024 |
| 6 | Sidney A Ribeau | Director | 78,843 | 0 | 78,843 | 6.0% | 30 Sep, 2025 |
| 7 | Clifford Larivey | President Flat Rolled Stl Proc | 70,154 | 0 | 70,154 | 5.3% | 08 Jul, 2026 |
| 8 | Timothy A Adams | Chief Financial Officer | 53,476 | 0 | 53,476 | 4.0% | 08 Jul, 2026 |
| 9 | John H Ii Mcconnell | Director | 43,167 | 0 | 43,167 | 3.3% | 30 Sep, 2025 |
| 10 | Steven R Witt | Controller | 38,137 | 0 | 38,137 | 2.9% | 30 Jun, 2025 |
| 11 | Michaune D Tillman | General Counsel | 22,661 | 0 | 22,661 | 1.7% | 27 Dec, 2023 |
| 12 | George P Stoe | Director | 22,063 | 0 | 22,063 | 1.7% | 30 Sep, 2025 |
| 13 | Mark C Davis | Director | 21,219 | 0 | 21,219 | 1.6% | 30 Sep, 2025 |
| 14 | Joseph Heuer | General Counsel | 19,169 | 0 | 19,169 | 1.5% | 30 Jun, 2026 |
| 15 | Jon J Bowsher | Director | 17,893 | 0 | 17,893 | 1.4% | 03 Feb, 2026 |
| 16 | Charles M Chiappone | Director | 17,243 | 0 | 17,243 | 1.3% | 30 Sep, 2025 |
| 17 | Scott J Kelly | Director | 16,157 | 0 | 16,157 | 1.2% | 29 Jan, 2026 |
| 18 | Nancy G. Mistretta | Director | 15,393 | 0 | 15,393 | 1.2% | 30 Sep, 2025 |
| 19 | Gwen Joseph | Corporate Controller | 4,166 | 0 | 4,166 | 0.3% | 30 Jun, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 07 Jul, 2026 | Jeffrey R Klingler | Chief Operating Officer | Acquired A | 8,655 | $0.00 | $0 | 107,559 | Direct |
| 07 Jul, 2026 | Geoffrey G Gilmore | President And Ceo | Acquired A | 23,664 | $0.00 | $0 | 359,521 | Direct |
| 07 Jul, 2026 | Clifford Larivey | President Flat Rolled Stl Proc | Acquired A | 2,906 | $0.00 | $0 | 71,451 | Direct |
| 07 Jul, 2026 | John B Blystone | Executive Chairman | Acquired A | 14,750 | $0.00 | $0 | 248,365 | Direct |
| 07 Jul, 2026 | Timothy A Adams | Chief Financial Officer | Acquired A | 2,837 | $0.00 | $0 | 54,742 | Direct |
| 07 Jul, 2026 | Jeffrey R Klingler | Chief Operating Officer | Disposed F | 3,861 | $32.16 | $124.17K | 103,698 | Direct |
| 07 Jul, 2026 | Clifford Larivey | President Flat Rolled Stl Proc | Disposed F | 1,297 | $32.16 | $41.71K | 70,154 | Direct |
| 07 Jul, 2026 | Timothy A Adams | Chief Financial Officer | Disposed F | 1,266 | $32.16 | $40.71K | 53,476 | Direct |
| 07 Jul, 2026 | Geoffrey G Gilmore | President And Ceo | Disposed F | 10,555 | $32.16 | $339.45K | 348,966 | Direct |
| 07 Jul, 2026 | John B Blystone | Executive Chairman | Disposed F | 6,408 | $32.16 | $206.08K | 241,957 | Direct |
| 30 Jun, 2026 | Timothy A Adams | Chief Financial Officer | Disposed F | 1,153 | $33.58 | $38.72K | 51,905 | Direct |
| 30 Jun, 2026 | Geoffrey G Gilmore | President And Ceo | Disposed F | 9,075 | $33.58 | $304.74K | 335,857 | Direct |
| 30 Jun, 2026 | Jeffrey R Klingler | Chief Operating Officer | Disposed F | 4,898 | $33.58 | $164.47K | 98,904 | Direct |
| 30 Jun, 2026 | Clifford Larivey | President Flat Rolled Stl Proc | Disposed F | 1,873 | $33.58 | $62.90K | 68,545 | Direct |
| 26 Jun, 2026 | Joseph Heuer | General Counsel | Acquired A | 4,890 | $0.00 | $0 | 19,169 | Direct |
| 26 Jun, 2026 | Timothy A Adams | Chief Financial Officer | Acquired A | 8,150 | $0.00 | $0 | 52,248 | Direct |
| 26 Jun, 2026 | Gwen Joseph | Corporate Controller | Acquired A | 1,630 | $0.00 | $0 | 4,166 | Direct |
| 26 Jun, 2026 | Geoffrey G Gilmore | President And Ceo | Acquired A | 39,915 | $0.00 | $0 | 344,932 | Direct |
| 26 Jun, 2026 | Jeffrey R Klingler | Chief Operating Officer | Acquired A | 10,590 | $0.00 | $0 | 103,802 | Direct |
| 26 Jun, 2026 | John B Blystone | Executive Chairman | Acquired A | 14,665 | $0.00 | $0 | 241,029 | Direct |