As of September 29, 2026, the three largest insider holders of ACU are Walter C Johnsen (Chairman And Ceo, 324.64K shares), Paul G Driscoll (Chief Financial Officer, 55.10K shares), Brian S Olschan (President And Coo, 41.17K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Walter C Johnsen | Chairman And Ceo | 324,638 | 0 | 324,638 | 62.6% | 31 Jul, 2026 |
| 2 | Brian S Olschan | President And Coo | 82,275 | 0 | 82,275 | 15.9% | 19 Aug, 2026 |
| 3 | Paul G Driscoll | Chief Financial Officer | 55,098 | 0 | 55,098 | 10.6% | 31 Jul, 2026 |
| 4 | Stevenson E Iii Ward | Director | 33,331 | 0 | 33,331 | 6.4% | 10 Sep, 2024 |
| 5 | Richmond Y Jr Holden | Director | 17,256 | 0 | 17,256 | 3.3% | 24 Jul, 2026 |
| 6 | Susan H Murphy | Director | 5,967 | 0 | 5,967 | 1.2% | 05 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 |
|---|---|---|---|---|---|---|---|---|
| 18 Aug, 2026 | Brian S Olschan | President And Coo | Disposed S | 4,000 | $61.36 | $245.44K | 44,480 | Direct |
| 18 Aug, 2026 | Brian S Olschan | President And Coo | Disposed S | 3,308 | $61.63 | $203.87K | 41,172 | Direct |
| 13 Aug, 2026 | Brian Barker | Director | Disposed S | 3,821 | $60.50 | $231.17K | 0 | Direct |
| 13 Aug, 2026 | Brian S Olschan | President And Coo | Acquired M | 20,000 | $19.48 | $389.60K | 61,172 | Direct |
| 13 Aug, 2026 | Brian S Olschan | President And Coo | Disposed F | 12,692 | $60.77 | $771.29K | 48,480 | Direct |
| 13 Aug, 2026 | Brian S Olschan | President And Coo | Disposed M | 20,000 | $19.48 | $389.60K | 206,700 | Direct |
| 11 Aug, 2026 | Brian Barker | Director | Acquired M | 4,000 | $21.20 | $84.80K | 5,300 | Direct |
| 03 Aug, 2026 | Brian S Olschan | President And Coo | Disposed S | 1 | $58.00 | $58 | 52,080 | Direct |
| 11 Aug, 2026 | Brian Barker | Director | Disposed F | 1,479 | $57.35 | $84.82K | 3,821 | Direct |
| 04 Aug, 2026 | Brian S Olschan | President And Coo | Disposed S | 981 | $56.75 | $55.67K | 51,099 | Direct |
| 11 Aug, 2026 | Brian Barker | Director | Disposed M | 4,000 | $21.20 | $84.80K | 17,500 | Direct |
| 05 Aug, 2026 | Brian S Olschan | President And Coo | Disposed S | 4,000 | $55.51 | $222.04K | 47,099 | Direct |
| 07 Aug, 2026 | Brian S Olschan | President And Coo | Disposed S | 125 | $55.72 | $6.97K | 46,974 | Direct |
| 10 Aug, 2026 | Brian S Olschan | President And Coo | Disposed S | 5,304 | $57.07 | $302.70K | 41,670 | Direct |
| 11 Aug, 2026 | Brian S Olschan | President And Coo | Disposed S | 159 | $57.99 | $9.22K | 41,511 | Direct |
| 12 Aug, 2026 | Brian S Olschan | President And Coo | Disposed S | 339 | $58.39 | $19.79K | 41,172 | Direct |
| 05 Aug, 2026 | Rex Lynn Davidson | Director | Acquired M | 5,000 | $28.20 | $141.00K | 6,228 | Direct |
| 05 Aug, 2026 | Rex Lynn Davidson | Director | Disposed F | 2,544 | $55.43 | $141.01K | 3,684 | Direct |
| 10 Aug, 2026 | Rex Lynn Davidson | Director | Disposed S | 3,684 | $56.48 | $208.07K | 0 | Direct |
| 05 Aug, 2026 | Rex Lynn Davidson | Director | Disposed M | 5,000 | $28.20 | $141.00K | 26,500 | Direct |