Over the trailing 12 months, MSA insiders bought $71,093 worth of shares (448 shares) and sold $4.25 million worth (21.9K shares) in open-market trades.
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | John T Iii Ryan | Chairman | 0 | 205,719 | 205,719 | 42.6% | 08 May, 2024 |
| 2 | Nishan J. Vartanian | Ceo | 50,324 | 0 | 50,324 | 10.4% | 11 Aug, 2026 |
| 3 | Diane M Pearse | Director | 42,691 | 0 | 42,691 | 8.8% | 14 Sep, 2026 |
| 4 | Steven C. Sr. Blanco | Ceo | 40,239 | 0 | 40,239 | 8.3% | 16 Jun, 2026 |
| 5 | William M Lambert | Chairman And Ceo | 27,626 | 0 | 27,626 | 5.7% | 16 Sep, 2026 |
| 6 | Kenneth D. Krause | Senior Vp, Cfo And Treasurer | 16,539 | 0 | 16,539 | 3.4% | 10 Mar, 2022 |
| 7 | Stephanie L Sciullo | President | 11,419 | 0 | 11,419 | 2.4% | 10 Mar, 2026 |
| 8 | Richard W Roda | Vice President, Secretary, Clo | 10,003 | 0 | 10,003 | 2.1% | 26 May, 2026 |
| 9 | Rebecca B Roberts | Director | 9,117 | 0 | 9,117 | 1.9% | 13 Aug, 2024 |
| 10 | Sandra L. Phillips | Director | 8,960 | 0 | 8,960 | 1.9% | 14 Sep, 2026 |
| 11 | Gregory B. Jordan | Director | 8,361 | 0 | 8,361 | 1.7% | 14 Sep, 2026 |
| 12 | William R Sperry | Director | 8,167 | 0 | 8,167 | 1.7% | 14 May, 2026 |
| 13 | Bob Willem Leenen | Vice President | 8,167 | 0 | 8,167 | 1.7% | 03 Aug, 2023 |
| 14 | Lee B Mcchesney | Senior Vp, Cfo And Treasurer | 7,006 | 0 | 7,006 | 1.5% | 20 Feb, 2025 |
| 15 | David J Howells | Senior Vice President | 6,735 | 0 | 6,735 | 1.4% | 10 Mar, 2026 |
| 16 | Luca Savi | Director | 5,473 | 0 | 5,473 | 1.1% | 14 Sep, 2026 |
| 17 | Robert A Bruggeworth | Director | 4,631 | 0 | 4,631 | 1.0% | 14 May, 2026 |
| 18 | Jonathan D. Buck | Chief Accounting Officer | 3,776 | 0 | 3,776 | 0.8% | 05 Aug, 2026 |
| 19 | Julie A Beck | Chief Financial Officer | 3,685 | 0 | 3,685 | 0.8% | 01 Sep, 2026 |
| 20 | Elyse L Brody | Interim Cfo | 3,506 | 0 | 3,506 | 0.7% | 03 Sep, 2025 |
| 21 | Octavio Marquez | Director | 626 | 0 | 626 | 0.1% | 05 Aug, 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 |
|---|---|---|---|---|---|---|---|---|
| 11 Sep, 2026 | William M Lambert | Director | Disposed G | 2,000 | $0.00 | $0 | 33,626 | Direct |
| 14 Sep, 2026 | William M Lambert | Director | Disposed G | 6,000 | $0.00 | $0 | 27,626 | Direct |
| 10 Sep, 2026 | Gregory B. Jordan | Director | Acquired A | 20 | $0.00 | $0 | 8,361 | Direct |
| 10 Sep, 2026 | Luca Savi | Director | Acquired A | 16 | $0.00 | $0 | 5,473 | Direct |
| 10 Sep, 2026 | Sandra L. Phillips | Director | Acquired A | 11 | $0.00 | $0 | 8,960 | Direct |
| 10 Sep, 2026 | Diane M Pearse | Director | Acquired A | 20 | $0.00 | $0 | 42,691 | Direct |
| 31 Aug, 2026 | Julie A Beck | Chief Financial Officer | Disposed F | 140 | $186.77 | $26.15K | 3,685 | Direct |
| 07 Aug, 2026 | Nishan J. Vartanian | Director, Other | Disposed S | 20,000 | $193.99 | $3.88Mn | 50,324 | Direct |
| 04 Aug, 2026 | Octavio Marquez | Director | Acquired A | 626 | $0.00 | $0 | 626 | Direct |
| 04 Aug, 2026 | Jonathan D. Buck | Chief Accounting Officer | Disposed G | 52 | $0.00 | $0 | 4,245 | Direct |
| 04 Aug, 2026 | Jonathan D. Buck | Chief Accounting Officer | Disposed S | 469 | $191.00 | $89.58K | 3,776 | Direct |
| 12 Jun, 2026 | Steven C. Sr. Blanco | Ceo | Disposed F | 702 | $159.89 | $112.24K | 40,239 | Direct |
| 10 Jun, 2026 | Diane M Pearse | Director | Acquired A | 23 | $0.00 | $0 | 42,671 | Direct |
| 10 Jun, 2026 | Luca Savi | Director | Acquired A | 18 | $0.00 | $0 | 5,457 | Direct |
| 10 Jun, 2026 | Gregory B. Jordan | Director | Acquired A | 23 | $0.00 | $0 | 8,341 | Direct |
| 10 Jun, 2026 | Sandra L. Phillips | Director | Acquired A | 12 | $0.00 | $0 | 8,949 | Direct |
| 11 Jun, 2026 | Julie A Beck | Chief Financial Officer | Acquired P | 448 | $158.69 | $71.09K | 3,825 | Direct |
| 21 May, 2026 | Richard W Roda | Vice President, Secretary, Clo | Disposed G | 300 | $167.76 | $50.33K | 10,003 | Direct |
| 13 May, 2026 | Gregory B. Jordan | Director | Acquired A | 899 | $0.00 | $0 | 8,318 | Direct |
| 13 May, 2026 | Robert A Bruggeworth | Director | Acquired A | 899 | $0.00 | $0 | 4,631 | Direct |