As of August 29, 2026, the three largest insider holders of SIGI are William M Rue (Director, 321.94K shares), Gregory E Murphy (Executive Chairman, 175.32K shares), John J. Marchioni (President And Ceo, 154.86K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | William M Rue | Director | 321,938 | 0 | 321,938 | 31.0% | 16 Nov, 2022 |
| 2 | Gregory E Murphy | Executive Chairman | 175,319 | 0 | 175,319 | 16.9% | 16 Feb, 2022 |
| 3 | Jeffrey F. Kamrowski | Evp, Music | 79,955 | 0 | 79,955 | 7.7% | 09 Feb, 2026 |
| 4 | J Brian Thebault | Director | 52,572 | 0 | 52,572 | 5.1% | 08 May, 2023 |
| 5 | John Burville | Director | 46,304 | 0 | 46,304 | 4.5% | 07 Feb, 2023 |
| 6 | Mark Alexander Wilcox | Evp Cfo | 41,676 | 0 | 41,676 | 4.0% | 06 Feb, 2023 |
| 7 | John Stephen Scheid | Director | 31,832 | 0 | 31,832 | 3.1% | 04 May, 2026 |
| 8 | Robert Kelly Doherty | Director | 28,899 | 0 | 28,899 | 2.8% | 04 May, 2026 |
| 9 | Philip Hugh Urban | Director | 28,415 | 0 | 28,415 | 2.7% | 06 May, 2024 |
| 10 | Terrence W Cavanaugh | Director | 25,295 | 0 | 25,295 | 2.4% | 25 Jul, 2025 |
| 11 | Cynthia S Nicholson | Director | 21,137 | 0 | 21,137 | 2.0% | 04 May, 2026 |
| 12 | Patrick Sean Brennan | Evp, Chief Financial Officer | 17,948 | 0 | 17,948 | 1.7% | 27 Oct, 2025 |
| 13 | Michael H Lanza | Evp And General Counsel | 16,565 | 0 | 16,565 | 1.6% | 29 Jul, 2026 |
| 14 | Anthony D. Harnett | Svp, Chief Accounting Officer | 15,205 | 0 | 15,205 | 1.5% | 17 Feb, 2026 |
| 15 | Brenda M Hall | Evp, Coo, Standard Lines | 14,772 | 0 | 14,772 | 1.4% | 10 Feb, 2025 |
| 16 | H Elizabeth Mitchell | Director | 14,280 | 0 | 14,280 | 1.4% | 05 May, 2025 |
| 17 | Joseph Eppers | Evp, Chief Investment Officer | 14,265 | 0 | 14,265 | 1.4% | 09 Feb, 2026 |
| 18 | Vincent M Senia | Evp, Chief Actuary | 14,178 | 0 | 14,178 | 1.4% | 10 Feb, 2025 |
| 19 | Michael J. Morrissey | Director | 12,579 | 0 | 12,579 | 1.2% | 07 Feb, 2023 |
| 20 | John J. Marchioni | President And Ceo | 12,234 | 0 | 12,234 | 1.2% | 09 Feb, 2026 |
| 21 | Ainar D Jr Aijala | Director | 11,065 | 0 | 11,065 | 1.1% | 04 May, 2026 |
| 22 | Paul Kush | Evp, Chief Claims Officer | 8,933 | 0 | 8,933 | 0.9% | 10 Feb, 2025 |
| 23 | Lisa R Bacus | Director | 8,552 | 0 | 8,552 | 0.8% | 04 May, 2026 |
| 24 | Stephen Mills | Director | 8,311 | 0 | 8,311 | 0.8% | 04 May, 2026 |
| 25 | Thomas A Mccarthy | Director | 5,659 | 0 | 5,659 | 0.5% | 04 May, 2026 |
| 26 | Wole C Coaxum | Director | 5,545 | 0 | 5,545 | 0.5% | 05 May, 2025 |
| 27 | Kate Sampson | Director | 3,221 | 0 | 3,221 | 0.3% | 04 May, 2026 |
| 28 | Julie Parsons | Director | 1,767 | 0 | 1,767 | 0.2% | 04 May, 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 |
|---|---|---|---|---|---|---|---|---|
| 28 Jul, 2026 | Michael H Lanza | Evp And General Counsel | Disposed G | 1,100 | $0.00 | $0 | 33,665 | Direct |
| 28 Jul, 2026 | Michael H Lanza | Evp And General Counsel | Disposed S | 17,100 | $94.04 | $1.61Mn | 16,565 | Direct |
| 01 May, 2026 | Kate Sampson | Director | Acquired A | 1,767 | $0.00 | $0 | 3,221 | Direct |
| 01 May, 2026 | Cynthia S Nicholson | Director | Acquired A | 1,767 | $0.00 | $0 | 21,137 | Direct |
| 01 May, 2026 | Thomas A Mccarthy | Director | Acquired A | 3,047 | $0.00 | $0 | 5,659 | Direct |
| 01 May, 2026 | Lisa R Bacus | Director | Acquired A | 1,767 | $0.00 | $0 | 8,552 | Direct |
| 01 May, 2026 | Stephen Mills | Director | Acquired A | 1,767 | $0.00 | $0 | 8,311 | Direct |
| 01 May, 2026 | John Stephen Scheid | Director | Acquired A | 1,767 | $0.00 | $0 | 31,832 | Direct |
| 01 May, 2026 | Robert Kelly Doherty | Director | Acquired A | 1,767 | $0.00 | $0 | 28,899 | Direct |
| 01 May, 2026 | Julie Parsons | Director | Acquired A | 1,767 | $0.00 | $0 | 1,767 | Direct |
| 01 May, 2026 | Ainar D Jr Aijala | Director | Acquired A | 1,767 | $0.00 | $0 | 11,065 | Direct |
| 17 Feb, 2026 | Anthony D. Harnett | Svp, Chief Accounting Officer | Disposed S | 1,064 | $87.33 | $92.91K | 15,205 | Direct |
| 06 Feb, 2026 | Anthony D. Harnett | Svp, Chief Accounting Officer | Acquired A | 1,775 | $0.00 | $0 | 16,980 | Direct |
| 06 Feb, 2026 | Joseph Eppers | Evp, Chief Investment Officer | Acquired A | 2,711 | $0.00 | $0 | 15,203 | Direct |
| 06 Feb, 2026 | Jeffrey F. Kamrowski | Evp, Music | Acquired A | 2,905 | $0.00 | $0 | 81,083 | Direct |
| 06 Feb, 2026 | Michael H Lanza | Evp And General Counsel | Acquired A | 4,260 | $0.00 | $0 | 36,360 | Direct |
| 06 Feb, 2026 | John J. Marchioni | President And Ceo | Acquired A | 21,686 | $0.00 | $0 | 21,686 | Direct |
| 06 Feb, 2026 | Joseph Eppers | Evp, Chief Investment Officer | Disposed F | 938 | $90.10 | $84.51K | 14,265 | Direct |
| 06 Feb, 2026 | Michael H Lanza | Evp And General Counsel | Disposed F | 1,595 | $90.10 | $143.71K | 34,765 | Direct |
| 06 Feb, 2026 | Anthony D. Harnett | Svp, Chief Accounting Officer | Disposed F | 711 | $90.10 | $64.06K | 16,269 | Direct |