ASPN's three largest insider shareholders as of September 29, 2026 are Industries Inc Koch (TenPercentOwner, 1.79Mn shares), Donald R Young (President And Ceo, 637.83K shares), Robert M. Gervis (Director, 355.18K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Industries Inc Koch | TenPercentOwner | 0 | 1,791,986 | 1,791,986 | 40.4% | 30 Mar, 2022 |
| 2 | Donald R Young | President And Ceo | 637,834 | 0 | 637,834 | 14.4% | 10 Mar, 2026 |
| 3 | Robert M. Gervis | Director | 355,182 | 0 | 355,182 | 8.0% | 06 Jun, 2022 |
| 4 | Corby C Whitaker | Chief Commercial Officer | 205,315 | 0 | 205,315 | 4.6% | 10 Mar, 2026 |
| 5 | Steven R Mitchell | Director | 156,898 | 0 | 156,898 | 3.5% | 14 May, 2026 |
| 6 | John F Fairbanks | Vp, Cfo And Treasurer | 141,277 | 0 | 141,277 | 3.2% | 01 Mar, 2022 |
| 7 | Kelley Conte | Senior Vice President, Hr | 128,183 | 0 | 128,183 | 2.9% | 02 Jun, 2023 |
| 8 | Mark L Noetzel | Director | 121,220 | 0 | 121,220 | 2.7% | 31 May, 2024 |
| 9 | William P Noglows | Director | 114,156 | 0 | 114,156 | 2.6% | 26 Jun, 2026 |
| 10 | Gregg Landes | Chief Operating Officer | 102,931 | 0 | 102,931 | 2.3% | 10 Mar, 2026 |
| 11 | George L Gould | Chief Technology Officer | 95,381 | 0 | 95,381 | 2.1% | 25 Feb, 2022 |
| 12 | Richard F Reilly | Director | 79,231 | 0 | 79,231 | 1.8% | 06 Jun, 2022 |
| 13 | Grant Douglas Thoele | Cfo Treasurer | 77,732 | 0 | 77,732 | 1.8% | 10 Mar, 2026 |
| 14 | Glenn E. Deegan | Cao, Gc Corp Secretary | 67,176 | 0 | 67,176 | 1.5% | 06 Mar, 2026 |
| 15 | Rebecca Blalock | Director | 63,175 | 0 | 63,175 | 1.4% | 31 May, 2024 |
| 16 | Ricardo C. Rodriguez | Cfo Treasurer | 57,311 | 0 | 57,311 | 1.3% | 11 Mar, 2025 |
| 17 | Keith L Schilling | Svp, Technology | 49,797 | 0 | 49,797 | 1.1% | 11 Mar, 2025 |
| 18 | Virginia Johnson | Clo, Gc, And Secretary | 44,450 | 0 | 44,450 | 1.0% | 27 May, 2025 |
| 19 | Stephanie Pittman | Chief Human Resources Officer | 42,257 | 0 | 42,257 | 1.0% | 08 Sep, 2025 |
| 20 | James E Sweetnam | Director | 36,321 | 0 | 36,321 | 0.8% | 14 May, 2026 |
| 21 | Kathleen Kool | Director | 34,323 | 0 | 34,323 | 0.8% | 14 May, 2026 |
| 22 | Cari Robinson | Director | 22,616 | 0 | 22,616 | 0.5% | 14 May, 2026 |
| 23 | Santhosh P Daniel | Chief Accounting Officer | 15,330 | 0 | 15,330 | 0.3% | 06 Mar, 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 |
|---|---|---|---|---|---|---|---|---|
| 23 Sep, 2026 | River Capital, Llc Wood | Other | Disposed S | 12,280,426 | $4.73 | $58.09Mn | 0 | Direct |
| 23 Jun, 2026 | William P Noglows | Director | Acquired M | 14,799 | $4.75 | $70.30K | 114,156 | Direct |
| 23 Jun, 2026 | William P Noglows | Director | Disposed M | 14,799 | $0.00 | $0 | 0 | Direct |
| 13 May, 2026 | William P Noglows | Director | Acquired A | 10,370 | $0.00 | $0 | 99,357 | Direct |
| 13 May, 2026 | James E Sweetnam | Director | Acquired A | 10,370 | $0.00 | $0 | 36,321 | Direct |
| 13 May, 2026 | Steven R Mitchell | Director | Acquired A | 10,370 | $0.00 | $0 | 156,898 | Direct |
| 13 May, 2026 | Kathleen Kool | Director | Acquired A | 10,370 | $0.00 | $0 | 34,323 | Direct |
| 13 May, 2026 | Cari Robinson | Director | Acquired A | 10,370 | $0.00 | $0 | 22,616 | Direct |
| 13 May, 2026 | Cari Robinson | Director | Acquired A | 8,706 | $0.00 | $0 | 8,706 | Direct |
| 13 May, 2026 | Kathleen Kool | Director | Acquired A | 8,706 | $0.00 | $0 | 8,706 | Direct |
| 13 May, 2026 | Steven R Mitchell | Director | Acquired A | 8,706 | $0.00 | $0 | 8,706 | Direct |
| 13 May, 2026 | James E Sweetnam | Director | Acquired A | 8,706 | $0.00 | $0 | 8,706 | Direct |
| 13 May, 2026 | William P Noglows | Director | Acquired A | 8,706 | $0.00 | $0 | 8,706 | Direct |
| 08 Mar, 2026 | Donald R Young | President And Ceo | Disposed F | 4,275 | $3.22 | $13.77K | 637,834 | Direct |
| 08 Mar, 2026 | Grant Douglas Thoele | Cfo Treasurer | Disposed F | 590 | $3.22 | $1.90K | 77,732 | Direct |
| 08 Mar, 2026 | Corby C Whitaker | Chief Commercial Officer | Disposed F | 1,924 | $3.22 | $6.20K | 205,315 | Direct |
| 08 Mar, 2026 | Gregg Landes | Chief Operating Officer | Disposed F | 1,924 | $3.22 | $6.20K | 102,931 | Direct |
| 04 Mar, 2026 | Glenn E. Deegan | Cao, Gc Corp Secretary | Acquired A | 55,503 | $0.00 | $0 | 67,176 | Direct |
| 04 Mar, 2026 | Gregg Landes | Svp, Operations And Strat Deve | Acquired A | 57,462 | $0.00 | $0 | 108,669 | Direct |
| 04 Mar, 2026 | Grant Douglas Thoele | Cfo Treasurer | Acquired A | 55,298 | $0.00 | $0 | 80,690 | Direct |