NATL's three largest insider shareholders as of September 05, 2026 are Stuart Mackinnon (Evp Chief Operating Officer, 161.85K shares), R Andrew Jr Wamser (Evp Chief Financial Officer, 142.78K shares), R Andrew Jr Wamser (Evp Chief Financial Officer, 142.78K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Stuart Mackinnon | Evp Chief Operating Officer | 161,848 | 0 | 161,848 | 24.5% | 12 Mar, 2026 |
| 2 | R Andrew Jr Wamser | Evp Chief Financial Officer | 142,777 | 0 | 142,777 | 21.6% | 12 Mar, 2026 |
| 3 | Joseph E Reece | Director | 47,953 | 0 | 47,953 | 7.3% | 26 May, 2026 |
| 4 | Paul J. Campbell | Evp Chief Financial Officer | 43,492 | 0 | 43,492 | 6.6% | 20 Aug, 2024 |
| 5 | Traci Hornfeck | Chief Accounting Officer | 36,714 | 0 | 36,714 | 5.6% | 12 Mar, 2026 |
| 6 | Andrew R Duvall | Chief Accounting Officer | 33,222 | 0 | 33,222 | 5.0% | 27 Feb, 2025 |
| 7 | Andrea Richards Burson | Chief Human Resources Officer | 33,117 | 0 | 33,117 | 5.0% | 12 Mar, 2026 |
| 8 | Mark W Begor | Director | 31,475 | 0 | 31,475 | 4.8% | 23 May, 2025 |
| 9 | Gillern Jeffry H. Von | Director | 23,975 | 0 | 23,975 | 3.6% | 26 May, 2026 |
| 10 | Odilon Almeida | Director | 23,975 | 0 | 23,975 | 3.6% | 26 May, 2026 |
| 11 | Frank A Natoli | Director | 23,975 | 0 | 23,975 | 3.6% | 26 May, 2026 |
| 12 | Mary Ellen Baker | Director | 19,624 | 0 | 19,624 | 3.0% | 23 May, 2025 |
| 13 | Lashawne Meriwether | Chief Human Resource Officer | 15,496 | 0 | 15,496 | 2.3% | 21 Feb, 2024 |
| 14 | Duncan L Niederauer | Director | 11,472 | 0 | 11,472 | 1.7% | 26 May, 2026 |
| 15 | Michelle M Frymire | Director | 10,838 | 0 | 10,838 | 1.6% | 21 Nov, 2025 |
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 |
|---|---|---|---|---|---|---|---|---|
| 30 Jun, 2026 | Joseph E Reece | Director | Acquired A | 1,325 | $43.41 | $57.52K | 12,463 | Direct |
| 21 May, 2026 | Odilon Almeida | Director | Acquired A | 4,351 | $44.82 | $195.01K | 23,975 | Direct |
| 21 May, 2026 | Joseph E Reece | Director | Acquired A | 4,351 | $44.82 | $195.01K | 47,953 | Direct |
| 21 May, 2026 | Frank A Natoli | Director | Acquired A | 4,351 | $44.82 | $195.01K | 23,975 | Direct |
| 21 May, 2026 | Gillern Jeffry H. Von | Director | Acquired A | 4,351 | $44.82 | $195.01K | 23,975 | Direct |
| 21 May, 2026 | Duncan L Niederauer | Director | Acquired A | 4,351 | $44.82 | $195.01K | 11,472 | Direct |
| 31 Mar, 2026 | Joseph E Reece | Director | Acquired A | 1,205 | $43.58 | $52.51K | 11,138 | Direct |
| 10 Mar, 2026 | R Andrew Jr Wamser | Evp Chief Financial Officer | Acquired A | 45,277 | $44.56 | $2.02Mn | 142,777 | Direct |
| 10 Mar, 2026 | Ricardo J Nunez | Evp, General Counsel Sectry | Acquired A | 34,928 | $44.56 | $1.56Mn | 65,226 | Direct |
| 10 Mar, 2026 | R Andrew Jr Wamser | Evp Chief Financial Officer | Acquired A | 45,277 | $44.56 | $2.02Mn | 142,777 | Direct |
| 10 Mar, 2026 | R Andrew Jr Wamser | Evp Chief Financial Officer | Acquired A | 45,277 | $44.56 | $2.02Mn | 142,777 | Direct |
| 10 Mar, 2026 | Traci Hornfeck | Chief Accounting Officer | Acquired A | 8,977 | $44.56 | $400.02K | 36,714 | Direct |
| 10 Mar, 2026 | R Andrew Jr Wamser | Evp Chief Financial Officer | Acquired A | 45,277 | $44.56 | $2.02Mn | 142,777 | Direct |
| 10 Mar, 2026 | Stuart Mackinnon | Evp Chief Operating Officer | Acquired A | 58,213 | $44.56 | $2.59Mn | 161,848 | Direct |
| 10 Mar, 2026 | Andrea Richards Burson | Chief Human Resources Officer | Acquired A | 19,404 | $44.56 | $864.64K | 33,117 | Direct |
| 30 Jan, 2026 | Stuart Mackinnon | Evp Chief Operating Officer | Acquired M | 17,183 | $38.11 | $654.84K | 110,397 | Direct |
| 30 Jan, 2026 | Stuart Mackinnon | Evp Chief Operating Officer | Disposed F | 6,762 | $38.11 | $257.70K | 103,635 | Direct |
| 30 Jan, 2026 | Stuart Mackinnon | Evp Chief Operating Officer | Disposed D | 14,923 | $38.11 | $568.72K | 17,183 | Direct |
| 30 Jan, 2026 | Stuart Mackinnon | Evp Chief Operating Officer | Disposed M | 17,183 | $38.11 | $654.84K | 0 | Direct |
| 31 Dec, 2025 | Joseph E Reece | Director | Acquired A | 1,378 | $38.11 | $52.52K | 9,933 | Direct |