CLF's three largest insider shareholders as of September 29, 2026 are Lourenco Goncalves (Chairman, President Ceo, 3.02Mn shares), Terry G. Fedor (Evp, Engineering Technology, 567.25K shares), Clifford T Smith (Evp Chief Operating Officer, 560.53K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Lourenco Goncalves | Chairman, President Ceo | 3,015,486 | 0 | 3,015,486 | 38.5% | 07 Jan, 2026 |
| 2 | Terry G. Fedor | Evp, Engineering Technology | 567,255 | 0 | 567,255 | 7.3% | 07 Jan, 2026 |
| 3 | Clifford T Smith | Evp Chief Operating Officer | 560,529 | 0 | 560,529 | 7.2% | 18 Feb, 2026 |
| 4 | Keith Koci | Evp President, Cc Services | 527,528 | 0 | 527,528 | 6.7% | 07 Jan, 2026 |
| 5 | James D Graham | Evp Chief Legal Admin Sec | 478,258 | 0 | 478,258 | 6.1% | 07 Jan, 2026 |
| 6 | Maurice Harapiak | Evp, Hr Chief Admin Officer | 472,090 | 0 | 472,090 | 6.0% | 28 Feb, 2022 |
| 7 | Gabriel Stoliar | Director | 258,992 | 0 | 258,992 | 3.3% | 02 Apr, 2026 |
| 8 | Ralph S Iii Michael | Director | 233,420 | 0 | 233,420 | 3.0% | 23 Apr, 2026 |
| 9 | Traci L Forrester | Evp, Environ Sustainability | 209,778 | 0 | 209,778 | 2.7% | 21 Feb, 2025 |
| 10 | Robert P Jr Fisher | Director | 189,957 | 0 | 189,957 | 2.4% | 03 Apr, 2024 |
| 11 | Celso L Jr Goncalves | Evp, Cfo | 184,542 | 0 | 184,542 | 2.4% | 05 Jun, 2026 |
| 12 | William K Gerber | Director | 137,578 | 0 | 137,578 | 1.8% | 28 Apr, 2023 |
| 13 | Arlene M Yocum | Director | 136,467 | 0 | 136,467 | 1.7% | 23 Apr, 2026 |
| 14 | John T Baldwin | Director | 133,227 | 0 | 133,227 | 1.7% | 10 Mar, 2025 |
| 15 | Ron A. Bloom | Director | 127,354 | 0 | 127,354 | 1.6% | 02 Jul, 2026 |
| 16 | Douglas C Taylor | Director | 119,103 | 0 | 119,103 | 1.5% | 25 Apr, 2025 |
| 17 | Susan Miranda Green | Director | 116,726 | 0 | 116,726 | 1.5% | 25 Apr, 2025 |
| 18 | Janet L Miller | Director | 101,795 | 0 | 101,795 | 1.3% | 26 Apr, 2024 |
| 19 | Jane M. Cronin | Director | 78,356 | 0 | 78,356 | 1.0% | 02 Jul, 2026 |
| 20 | Kimberly A Floriani | Svp, Controller Cao | 68,852 | 0 | 68,852 | 0.9% | 07 Jan, 2026 |
| 21 | Edilson Camara | Director | 57,317 | 0 | 57,317 | 0.7% | 23 Apr, 2026 |
| 22 | Ben Oren | Director | 48,068 | 0 | 48,068 | 0.6% | 23 Apr, 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 |
|---|---|---|---|---|---|---|---|---|
| 01 Jul, 2026 | Jane M. Cronin | Director | Acquired A | 4,246 | $9.42 | $40.00K | 78,356 | Direct |
| 01 Jul, 2026 | Ron A. Bloom | Director | Acquired A | 4,246 | $9.42 | $40.00K | 127,354 | Direct |
| 05 Jun, 2026 | Celso L Jr Goncalves | Evp, Cfo | Disposed S | 214,308 | $13.41 | $2.87Mn | 184,542 | Direct |
| 21 Apr, 2026 | John T Baldwin | Director | Acquired A | 15,334 | $0.00 | $0 | 101,230 | Direct |
| 21 Apr, 2026 | Edilson Camara | Director | Acquired A | 15,334 | $0.00 | $0 | 57,317 | Direct |
| 21 Apr, 2026 | Ralph S Iii Michael | Director | Acquired A | 15,334 | $0.00 | $0 | 233,420 | Direct |
| 21 Apr, 2026 | Ron A. Bloom | Director | Acquired A | 15,334 | $0.00 | $0 | 123,108 | Direct |
| 21 Apr, 2026 | Jane M. Cronin | Director | Acquired A | 15,334 | $0.00 | $0 | 74,110 | Direct |
| 21 Apr, 2026 | Arlene M Yocum | Director | Acquired A | 15,334 | $0.00 | $0 | 136,467 | Direct |
| 21 Apr, 2026 | Ben Oren | Director | Acquired A | 15,334 | $0.00 | $0 | 48,068 | Direct |
| 01 Apr, 2026 | Jane M. Cronin | Director | Acquired A | 4,534 | $8.27 | $37.50K | 58,776 | Direct |
| 01 Apr, 2026 | Gabriel Stoliar | Director | Acquired A | 2,418 | $8.27 | $20.00K | 259,717 | Direct |
| 01 Apr, 2026 | Ron A. Bloom | Director | Acquired A | 4,837 | $8.27 | $40.00K | 107,774 | Direct |
| 01 Apr, 2026 | Gabriel Stoliar | Director | Disposed F | 725 | $8.27 | $6.00K | 258,992 | Direct |
| 18 Feb, 2026 | Celso L Jr Goncalves | Evp, Cfo | Acquired A | 188,531 | $0.00 | $0 | 188,531 | Direct |
| 18 Feb, 2026 | James D Graham | Evp Chief Legal Admin Sec | Acquired A | 141,991 | $0.00 | $0 | 141,991 | Direct |
| 18 Feb, 2026 | Clifford T Smith | Evp Chief Operating Officer | Acquired A | 198,128 | $0.00 | $0 | 198,128 | Direct |
| 18 Feb, 2026 | Keith Koci | Evp President, Cc Services | Acquired A | 163,791 | $0.00 | $0 | 163,791 | Direct |
| 18 Feb, 2026 | Lourenco Goncalves | Chairman, President Ceo | Acquired A | 650,900 | $0.00 | $0 | 650,900 | Direct |
| 18 Feb, 2026 | Kimberly A Floriani | Svp, Controller Cao | Acquired A | 29,573 | $0.00 | $0 | 29,573 | Direct |