As of August 04, 2026, the three largest insider holders of COHU are Jeffrey D Jones (Sr. Vp Finance Cfo, 383.02K shares), Jeffrey D Jones (Sr. Vp Finance Cfo, 378.57K shares), Jeffrey D Jones (Sr. Vp Finance Cfo, 356.79K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Jeffrey D Jones | Sr. Vp Finance Cfo | 1,118,387 | 0 | 1,118,387 | 41.9% | 17 Mar, 2026 |
| 2 | Christopher Bohrson | Sr Vp Chief Customer Officer | 528,606 | 0 | 528,606 | 19.8% | 17 Apr, 2026 |
| 3 | Klaus Ilgenfritz | Sr. Vp Chief Product Officer | 395,856 | 0 | 395,856 | 14.8% | 17 Mar, 2026 |
| 4 | Ian P Lawee | Sr. Vp Gm | 176,345 | 0 | 176,345 | 6.6% | 05 Sep, 2023 |
| 5 | Andrew M Caggia | Director | 137,293 | 0 | 137,293 | 5.1% | 30 Mar, 2026 |
| 6 | Steven J Bilodeau | Director | 129,007 | 0 | 129,007 | 4.8% | 23 Feb, 2026 |
| 7 | William Bendush | Director | 49,337 | 32,280 | 81,617 | 3.1% | 20 May, 2025 |
| 8 | Nina Richardson | Director | 66,883 | 0 | 66,883 | 2.5% | 20 May, 2025 |
| 9 | Andreas W Mattes | Director | 22,236 | 0 | 22,236 | 0.8% | 20 May, 2025 |
| 10 | Karen Marie Rapp | Director | 15,578 | 0 | 15,578 | 0.6% | 20 May, 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 |
|---|---|---|---|---|---|---|---|---|
| 15 Apr, 2026 | Christopher Bohrson | Sr Vp Chief Customer Officer | Disposed S | 1,000 | $38.00 | $38.00K | 175,202 | Direct |
| 27 Mar, 2026 | Andrew M Caggia | Director | Acquired A | 594 | $0.00 | $0 | 76,158 | Direct |
| 14 Mar, 2026 | Jeffrey D Jones | Sr. Vp Finance Cfo | Disposed F | 4,447 | $0.00 | $0 | 378,574 | Direct |
| 14 Mar, 2026 | Jeffrey D Jones | Sr. Vp Finance Cfo | Disposed F | 4,447 | $0.00 | $0 | 378,574 | Direct |
| 14 Mar, 2026 | Klaus Ilgenfritz | Sr. Vp Chief Product Officer | Disposed F | 1,098 | $0.00 | $0 | 99,216 | Direct |
| 14 Mar, 2026 | Klaus Ilgenfritz | Sr. Vp Chief Product Officer | Disposed F | 1,098 | $0.00 | $0 | 99,216 | Direct |
| 14 Mar, 2026 | Jeffrey D Jones | Sr. Vp Finance Cfo | Disposed F | 4,447 | $0.00 | $0 | 378,574 | Direct |
| 14 Mar, 2026 | Christopher Bohrson | Sr Vp Chief Customer Officer | Disposed F | 3,131 | $0.00 | $0 | 193,703 | Direct |
| 14 Mar, 2026 | Klaus Ilgenfritz | Sr. Vp Chief Product Officer | Disposed F | 1,098 | $0.00 | $0 | 99,216 | Direct |
| 14 Mar, 2026 | Jeffrey D Jones | Sr. Vp Finance Cfo | Disposed F | 4,447 | $0.00 | $0 | 378,574 | Direct |
| 14 Mar, 2026 | Klaus Ilgenfritz | Sr. Vp Chief Product Officer | Disposed F | 1,098 | $0.00 | $0 | 99,216 | Direct |
| 14 Mar, 2026 | Klaus Ilgenfritz | Sr. Vp Chief Product Officer | Disposed J | 7,425 | $0.00 | $0 | 91,791 | Direct |
| 14 Mar, 2026 | Christopher Bohrson | Sr Vp Chief Customer Officer | Disposed J | 16,501 | $0.00 | $0 | 177,202 | Direct |
| 14 Mar, 2026 | Klaus Ilgenfritz | Sr. Vp Chief Product Officer | Disposed J | 7,425 | $0.00 | $0 | 91,791 | Direct |
| 14 Mar, 2026 | Jeffrey D Jones | Sr. Vp Finance Cfo | Disposed J | 21,782 | $0.00 | $0 | 356,792 | Direct |
| 14 Mar, 2026 | Klaus Ilgenfritz | Sr. Vp Chief Product Officer | Disposed J | 7,425 | $0.00 | $0 | 91,791 | Direct |
| 14 Mar, 2026 | Klaus Ilgenfritz | Sr. Vp Chief Product Officer | Disposed J | 7,425 | $0.00 | $0 | 91,791 | Direct |
| 14 Mar, 2026 | Jeffrey D Jones | Sr. Vp Finance Cfo | Disposed J | 21,782 | $0.00 | $0 | 356,792 | Direct |
| 14 Mar, 2026 | Jeffrey D Jones | Sr. Vp Finance Cfo | Disposed J | 21,782 | $0.00 | $0 | 356,792 | Direct |
| 14 Mar, 2026 | Jeffrey D Jones | Sr. Vp Finance Cfo | Disposed J | 21,782 | $0.00 | $0 | 356,792 | Direct |