TECH's three largest insider shareholders as of April 17, 2026 are Charles R. Kummeth (Chief Executive Officer, 1.28Mn shares), James Hippel (Cfo, 142.72K shares), John L Higgins (Director, 66.88K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Charles R. Kummeth | Chief Executive Officer | 1,278,269 | 0 | 17 Aug, 2023 |
| James Hippel | Cfo | 142,722 | 0 | 05 Nov, 2025 |
| John L Higgins | - | 66,876 | 0 | 03 Nov, 2025 |
| Kim Kelderman | Chief Executive Officer | 48,665 | 0 | 05 Nov, 2025 |
| Kim Kelderman | Chief Executive Officer | 48,665 | 0 | 05 Nov, 2025 |
| Robert V Baumgartner | - | 46,503 | 0 | 03 Nov, 2025 |
| Roeland Nusse | - | 44,559 | 0 | 27 Aug, 2025 |
| Brenda S. Furlow | Svp General Counsel | 26,092 | 0 | 09 Dec, 2022 |
| Randolph C Steer | - | 24,201 | 0 | 30 Oct, 2023 |
| William Geist | President, Protein Sciences | 20,503 | 0 | 05 Nov, 2025 |
| Alpna Seth | - | 15,411 | 0 | 03 Nov, 2025 |
| Alpna Seth | - | 15,411 | 0 | 03 Nov, 2025 |
| Rupert Vessey | - | 10,987 | 0 | 03 Nov, 2025 |
| Rupert Vessey | - | 10,987 | 0 | 03 Nov, 2025 |
| Julie L Bushman | - | 8,775 | 0 | 03 Nov, 2025 |
| Matthew Mcmanus | President Diag Spatial Bio | 7,691 | 0 | 03 Feb, 2026 |
| Matthew Mcmanus | President Diag Spatial Bio | 7,691 | 0 | 03 Feb, 2026 |
| Shane Bohnen | Svp General Counsel | 5,904 | 0 | 07 Apr, 2026 |
| Shane Bohnen | Svp General Counsel | 4,385 | 0 | 19 Aug, 2025 |
| Judith V. Klimovsky | - | 3,782 | 0 | 03 Nov, 2025 |
| Judith V. Klimovsky | - | 3,782 | 0 | 03 Nov, 2025 |
| Amy E. Herr | - | 2,680 | 0 | 03 Nov, 2025 |
| Amy E. Herr | - | 2,680 | 0 | 03 Nov, 2025 |
| Brenda S. Furlow | Svp General Counsel | 0 | 2,660 | 09 Aug, 2022 |
| Norman David Eansor | President Protein Sciences | 2,117 | 0 | 16 Nov, 2021 |
| Amy E. Herr | - | 0 | 200 | 19 Feb, 2026 |
| Amy E. Herr | - | 0 | 200 | 19 Feb, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 03 Apr, 2026 | Shane Bohnen | Common Stock | A | 2,259 | $0.00 | 6,644 | D | M |
| 03 Apr, 2026 | Shane Bohnen | Common Stock | D | 740 | $53.13 | 5,904 | D | F |
| 03 Apr, 2026 | Shane Bohnen | Restricted Stock Units | D | 2,259 | $0.00 | 0 | D | M |
| 02 Mar, 2026 | Steven C. Crouse | Performance Restricted Stock Units | A | 2,387 | $0.00 | 2,387 | D | A |
| 02 Mar, 2026 | Steven C. Crouse | Restricted Stock Units | A | 735 | $0.00 | 735 | D | A |
| 02 Mar, 2026 | Steven C. Crouse | Stock Option (right to buy) | A | 1,911 | $0.00 | 1,911 | D | A |
| 17 Feb, 2026 | Amy E. Herr | Common Stock | D | 1,976 | $59.11 | 200 | I | S |
| 03 Feb, 2026 | Amy E. Herr | Common Stock | A | 38 | $0.00 | 2,192 | I | M |
| 03 Feb, 2026 | Amy E. Herr | Common Stock | D | 16 | $64.63 | 2,176 | I | F |
| 03 Feb, 2026 | Amy E. Herr | Restricted Stock Units | D | 38 | $0.00 | 77 | I | M |
| 01 Feb, 2026 | Matthew Mcmanus | Common Stock | A | 4,621 | $0.00 | 9,356 | D | M |
| 01 Feb, 2026 | Matthew Mcmanus | Common Stock | D | 1,665 | $64.09 | 7,691 | D | F |
| 01 Feb, 2026 | Matthew Mcmanus | Restricted Stock Units | D | 4,621 | $0.00 | 4,620 | D | M |
| 03 Nov, 2025 | James Hippel | Common Stock | A | 13,159 | $0.00 | 143,042 | D | M |
| 03 Nov, 2025 | Kim Kelderman | Common Stock | D | 2,303 | $62.57 | 48,665 | D | F |
| 03 Nov, 2025 | James Hippel | Common Stock | A | 11,545 | $0.00 | 154,587 | D | M |
| 03 Nov, 2025 | James Hippel | Common Stock | D | 11,865 | $62.57 | 142,722 | D | F |
| 03 Nov, 2025 | James Hippel | Restricted Stock Units | D | 13,159 | $0.00 | 0 | D | M |
| 03 Nov, 2025 | James Hippel | Restricted Stock Units | D | 11,545 | $0.00 | 23,089 | D | M |
| 30 Oct, 2025 | Alpna Seth | Common Stock | A | 1,640 | $0.00 | 15,411 | D | A |