Cohu's top three insider shareholders as of September 09, 2026 are Luis A Muller (President Ceo, 1.05Mn shares), Luis A Muller (President Ceo, 972.77K shares), Luis A Muller (President Ceo, 927.62K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Luis A Muller | President Ceo | 2,952,442 | 0 | 2,952,442 | 51.3% | 26 May, 2026 |
| 2 | Jeffrey D Jones | Sr. Vp Finance Cfo | 496,994 | 190,590 | 687,584 | 12.0% | 16 Jul, 2026 |
| 3 | Christopher Bohrson | Sr Vp Chief Customer Officer | 519,606 | 0 | 519,606 | 9.0% | 16 Jul, 2026 |
| 4 | James A Donahue | Executive Chairman | 27,670 | 385,413 | 413,083 | 7.2% | 26 May, 2026 |
| 5 | Klaus Ilgenfritz | Sr. Vp Chief Product Officer | 395,856 | 0 | 395,856 | 6.9% | 17 Mar, 2026 |
| 6 | Ian P Lawee | Sr. Vp Gm | 176,345 | 0 | 176,345 | 3.1% | 05 Sep, 2023 |
| 7 | Thomas D Kampfer | Sr. Vp Corp Dev, Gc Sec | 165,982 | 0 | 165,982 | 2.9% | 16 May, 2024 |
| 8 | Andrew M Caggia | Director | 144,808 | 0 | 144,808 | 2.5% | 06 Aug, 2026 |
| 9 | Steven J Bilodeau | Director | 114,801 | 0 | 114,801 | 2.0% | 22 May, 2026 |
| 10 | William Bendush | Director | 47,997 | 35,037 | 83,034 | 1.4% | 19 May, 2026 |
| 11 | Yon Jorden | Director | 51,699 | 0 | 51,699 | 0.9% | 19 May, 2026 |
| 12 | Andreas W Mattes | Director | 25,814 | 0 | 25,814 | 0.4% | 19 May, 2026 |
| 13 | Karen Marie Rapp | Director | 19,156 | 0 | 19,156 | 0.3% | 19 May, 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 |
|---|---|---|---|---|---|---|---|---|
| 05 Aug, 2026 | Andrew M Caggia | Director | Disposed S | 10,000 | $51.74 | $517.40K | 70,030 | Direct |
| 05 Aug, 2026 | Nina Richardson | Director | Disposed S | 3,055 | $51.54 | $157.45K | 39,093 | Direct |
| 05 Aug, 2026 | Andrew M Caggia | Director | Disposed S | 5,252 | $51.73 | $271.69K | 64,778 | Direct |
| 15 Jul, 2026 | Jeffrey D Jones | Sr. Vp Finance Cfo | Disposed J | 190,590 | $0.00 | $0 | 153,202 | Direct |
| 15 Jul, 2026 | Christopher Bohrson | Sr Vp Chief Customer Officer | Disposed S | 1,000 | $57.92 | $57.92K | 170,702 | Direct |
| 15 Jul, 2026 | Jeffrey D Jones | Sr. Vp Finance Cfo | Acquired J | 190,590 | $0.00 | $0 | 190,590 | Indirect |
| 26 Jun, 2026 | Andrew M Caggia | Director | Acquired A | 294 | $0.00 | $0 | 80,030 | Direct |
| 15 Jun, 2026 | Christopher Bohrson | Sr Vp Chief Customer Officer | Disposed S | 1,000 | $63.88 | $63.88K | 171,702 | Direct |
| 22 May, 2026 | Jeffrey D Jones | Sr. Vp Finance Cfo | Disposed S | 13,000 | $46.84 | $608.92K | 343,792 | Direct |
| 22 May, 2026 | James A Donahue | Director | Disposed S | 10,257 | $46.77 | $479.72K | 3,578 | Direct |
| 22 May, 2026 | Luis A Muller | President Ceo | Disposed S | 45,154 | $46.62 | $2.11Mn | 927,619 | Direct |
| 20 May, 2026 | Steven J Bilodeau | Director | Disposed S | 10,257 | $44.85 | $460.03K | 52,272 | Direct |
| 15 May, 2026 | William Bendush | Director | Acquired J | 10,257 | $0.00 | $0 | 35,037 | Indirect |
| 15 May, 2026 | James A Donahue | Director | Acquired A | 3,578 | $0.00 | $0 | 13,835 | Direct |
| 15 May, 2026 | Yon Jorden | Director | Acquired A | 3,578 | $0.00 | $0 | 35,226 | Direct |
| 15 May, 2026 | Steven J Bilodeau | Director | Acquired A | 3,578 | $0.00 | $0 | 62,529 | Direct |
| 15 May, 2026 | Andreas W Mattes | Director | Acquired A | 3,578 | $0.00 | $0 | 25,814 | Direct |
| 15 May, 2026 | Andrew M Caggia | Director | Acquired A | 3,578 | $0.00 | $0 | 79,736 | Direct |
| 15 May, 2026 | Nina Richardson | Director | Acquired A | 3,578 | $0.00 | $0 | 42,148 | Direct |
| 15 May, 2026 | Karen Marie Rapp | Director | Acquired A | 3,578 | $0.00 | $0 | 19,156 | Direct |