As of September 29, 2026, the three largest insider holders of AIN are Andrew William Higgins (President Ceo, 66.79K shares), Daniel A Halftermeyer (President, Mc, 63.35K shares), Erland E Kailbourne (Chairman Of The Board, 50.55K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Andrew William Higgins | President Ceo | 66,787 | 0 | 66,787 | 15.0% | 13 May, 2024 |
| 2 | Daniel A Halftermeyer | President, Mc | 63,355 | 0 | 63,355 | 14.2% | 04 Mar, 2024 |
| 3 | Erland E Kailbourne | Chairman Of The Board | 50,549 | 0 | 50,549 | 11.3% | 13 May, 2024 |
| 4 | Gregory N Harwell | President Aec | 46,172 | 0 | 46,172 | 10.4% | 16 Aug, 2024 |
| 5 | Gunnar Kleveland | President And Ceo | 38,019 | 0 | 38,019 | 8.5% | 03 Mar, 2026 |
| 6 | John Scannell | Director | 21,917 | 0 | 21,917 | 4.9% | 18 May, 2026 |
| 7 | John Michael Mcquade | Director | 17,258 | 0 | 17,258 | 3.9% | 18 May, 2026 |
| 8 | Kenneth W Krueger | Director | 16,621 | 0 | 16,621 | 3.7% | 18 May, 2026 |
| 9 | Katharine Plourde | Director | 15,969 | 0 | 15,969 | 3.6% | 15 May, 2023 |
| 10 | Christopher Eric Stone | President Aec | 14,633 | 0 | 14,633 | 3.3% | 13 Aug, 2026 |
| 11 | Stephen M Nolan | Cfo Treasurer | 13,957 | 0 | 13,957 | 3.1% | 01 Mar, 2023 |
| 12 | Mark J. Murphy | Director | 13,745 | 0 | 13,745 | 3.1% | 18 May, 2026 |
| 13 | Joseph M Gaug | Vp General Counsel Secretary | 12,640 | 0 | 12,640 | 2.8% | 03 Mar, 2026 |
| 14 | Willard C Station | Executive Vice President Cfo | 9,552 | 0 | 9,552 | 2.1% | 03 Sep, 2026 |
| 15 | Robert Alan Hansen | Senior Vice President Cto | 8,596 | 0 | 8,596 | 1.9% | 03 Mar, 2026 |
| 16 | Russell Toney | Director | 8,284 | 0 | 8,284 | 1.9% | 18 May, 2026 |
| 17 | Alice Mccarvill | Exec Vp Human Resources | 7,293 | 0 | 7,293 | 1.6% | 01 Oct, 2024 |
| 18 | Robert D. Starr | Cfo Treasurer | 6,172 | 0 | 6,172 | 1.4% | 05 Mar, 2025 |
| 19 | Bonnie Cruickshank Lind | Director | 5,609 | 0 | 5,609 | 1.3% | 18 May, 2026 |
| 20 | Suzanne K Purdum | Chro | 2,910 | 0 | 2,910 | 0.7% | 03 Mar, 2026 |
| 21 | Christina M Alvord | Director | 2,792 | 0 | 2,792 | 0.6% | 15 May, 2023 |
| 22 | Merle A Stein | President Mc | 1,759 | 0 | 1,759 | 0.4% | 03 Mar, 2026 |
| 23 | Sean C Valashinas | Cao | 1,204 | 0 | 1,204 | 0.3% | 10 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 |
|---|---|---|---|---|---|---|---|---|
| 01 Sep, 2026 | Willard C Station | Executive Vice President Cfo | Acquired M | 10,599 | $0.00 | $0 | 12,123 | Direct |
| 01 Mar, 2026 | Willard C Station | Executive Vice President Cfo | Disposed F | 2,581 | $54.33 | $140.23K | 9,552 | Direct |
| 01 Sep, 2026 | Willard C Station | Executive Vice President Cfo | Acquired M | 10,599 | $0.00 | $0 | 21,519 | Direct |
| 12 Aug, 2026 | Christopher Eric Stone | President Aec | Acquired M | 6,905 | $0.00 | $0 | 16,608 | Direct |
| 01 Mar, 2026 | Christopher Eric Stone | President Aec | Disposed F | 1,975 | $63.84 | $126.08K | 14,633 | Direct |
| 12 Aug, 2026 | Christopher Eric Stone | President Aec | Acquired M | 6,905 | $0.00 | $0 | 6,904 | Direct |
| 09 Jun, 2026 | Sean C Valashinas | Cao | Acquired M | 1,321 | $0.00 | $0 | 1,519 | Direct |
| 09 Jun, 2026 | Sean C Valashinas | Cao | Disposed F | 315 | $69.52 | $21.90K | 1,204 | Direct |
| 09 Jun, 2026 | Sean C Valashinas | Cao | Acquired M | 1,321 | $0.00 | $0 | 1,320 | Direct |
| 15 May, 2026 | Christina M Alvord | Director | Acquired A | 2,390 | $0.00 | $0 | 5,682 | Direct |
| 15 May, 2026 | Christina M Alvord | Director | Acquired A | 2,390 | $0.00 | $0 | 5,682 | Direct |
| 15 May, 2026 | John Scannell | Director | Acquired A | 2,390 | $0.00 | $0 | 21,917 | Direct |
| 15 May, 2026 | Kenneth W Krueger | Director | Acquired A | 2,390 | $0.00 | $0 | 16,621 | Direct |
| 15 May, 2026 | Bonnie Cruickshank Lind | Director | Acquired A | 2,390 | $0.00 | $0 | 5,609 | Direct |
| 15 May, 2026 | John Michael Mcquade | Director | Acquired A | 3,792 | $0.00 | $0 | 17,258 | Direct |
| 15 May, 2026 | Russell Toney | Director | Acquired A | 2,390 | $0.00 | $0 | 8,284 | Direct |
| 15 May, 2026 | Mark J. Murphy | Director | Acquired A | 1,195 | $0.00 | $0 | 13,745 | Direct |
| 15 May, 2026 | Katharine Plourde | Director | Acquired A | 2,390 | $0.00 | $0 | 5,862 | Direct |
| 15 May, 2026 | Bonnie Cruickshank Lind | Director | Acquired A | 2,390 | $0.00 | $0 | 5,682 | Direct |
| 01 Mar, 2026 | Joseph M Gaug | Vp General Counsel Secretary | Acquired M | 717 | $0.00 | $0 | 10,362 | Direct |