TECH's three largest insider shareholders as of September 29, 2026 are Charles R. Kummeth (Chief Executive Officer, 1.28Mn shares), James Hippel (Cfo, 170.18K shares), Kim Kelderman (Chief Executive Officer, 82.76K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Charles R. Kummeth | Chief Executive Officer | 1,278,269 | 0 | 1,278,269 | 68.2% | 17 Aug, 2023 |
| 2 | James Hippel | Cfo | 170,183 | 0 | 170,183 | 9.1% | 18 Aug, 2026 |
| 3 | Kim Kelderman | Chief Executive Officer | 82,762 | 0 | 82,762 | 4.4% | 18 Aug, 2026 |
| 4 | John L Higgins | Director | 66,876 | 0 | 66,876 | 3.6% | 03 Nov, 2025 |
| 5 | Robert V Baumgartner | Director | 56,884 | 0 | 56,884 | 3.0% | 24 Sep, 2026 |
| 6 | Roeland Nusse | Director | 44,559 | 0 | 44,559 | 2.4% | 27 Aug, 2025 |
| 7 | Brenda S. Furlow | Svp General Counsel | 26,092 | 0 | 26,092 | 1.4% | 09 Dec, 2022 |
| 8 | William Geist | President, Protein Sciences | 24,943 | 0 | 24,943 | 1.3% | 18 Aug, 2026 |
| 9 | Randolph C Steer | Director | 24,201 | 0 | 24,201 | 1.3% | 30 Oct, 2023 |
| 10 | Norman David Eansor | President Protein Sciences | 16,936 | 0 | 16,936 | 0.9% | 16 Nov, 2021 |
| 11 | Joseph D Keegan | Director | 15,411 | 0 | 15,411 | 0.8% | 03 Nov, 2025 |
| 12 | Alpna Seth | Director | 15,411 | 0 | 15,411 | 0.8% | 03 Nov, 2025 |
| 13 | Rupert Vessey | Director | 10,987 | 0 | 10,987 | 0.6% | 03 Nov, 2025 |
| 14 | Shane Bohnen | Svp General Counsel | 10,360 | 0 | 10,360 | 0.6% | 18 Aug, 2026 |
| 15 | Steven C. Crouse | President Diag Spatial Bi | 10,237 | 0 | 10,237 | 0.5% | 18 Aug, 2026 |
| 16 | Julie L Bushman | Director | 8,775 | 0 | 8,775 | 0.5% | 03 Nov, 2025 |
| 17 | Matthew Mcmanus | President Diag Spatial Bio | 7,691 | 0 | 7,691 | 0.4% | 03 Feb, 2026 |
| 18 | Judith V. Klimovsky | Director | 3,782 | 0 | 3,782 | 0.2% | 03 Nov, 2025 |
| 19 | Amy E. Herr | Director | 0 | 576 | 576 | 0.0% | 18 Aug, 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 |
|---|---|---|---|---|---|---|---|---|
| 22 Sep, 2026 | Robert V Baumgartner | Director | Acquired M | 15,940 | $0.00 | $0 | 62,443 | Direct |
| 22 Sep, 2026 | Robert V Baumgartner | Director | Disposed F | 5,559 | $72.55 | $403.31K | 56,884 | Direct |
| 22 Sep, 2026 | Robert V Baumgartner | Director | Disposed M | 15,940 | $0.00 | $0 | 0 | Direct |
| 17 Aug, 2026 | William Geist | President, Protein Sciences | Acquired A | 14,762 | $0.00 | $0 | 14,762 | Direct |
| 17 Aug, 2026 | William Geist | President, Protein Sciences | Acquired A | 23,985 | $0.00 | $0 | 23,985 | Direct |
| 17 Aug, 2026 | James Hippel | Cfo | Acquired A | 22,438 | $0.00 | $0 | 22,438 | Direct |
| 17 Aug, 2026 | Shane Bohnen | Svp General Counsel | Acquired A | 11,344 | $0.00 | $0 | 11,344 | Direct |
| 17 Aug, 2026 | James Hippel | Cfo | Acquired A | 36,459 | $0.00 | $0 | 36,459 | Direct |
| 17 Aug, 2026 | Shane Bohnen | Svp General Counsel | Acquired A | 18,432 | $0.00 | $0 | 18,432 | Direct |
| 17 Aug, 2026 | Amy E. Herr | Director | Acquired A | 1,381 | $0.00 | $0 | 1,381 | Indirect |
| 17 Aug, 2026 | Kim Kelderman | Chief Executive Officer | Acquired A | 57,590 | $0.00 | $0 | 57,590 | Direct |
| 17 Aug, 2026 | Steven C. Crouse | President Diag Spatial Bi | Acquired A | 8,702 | $0.00 | $0 | 8,702 | Direct |
| 17 Aug, 2026 | Kim Kelderman | Chief Executive Officer | Acquired A | 93,582 | $0.00 | $0 | 93,582 | Direct |
| 17 Aug, 2026 | Steven C. Crouse | President Diag Spatial Bi | Acquired A | 14,140 | $0.00 | $0 | 14,140 | Direct |
| 15 Aug, 2026 | Kim Kelderman | Chief Executive Officer | Acquired M | 21,470 | $0.00 | $0 | 93,583 | Direct |
| 15 Aug, 2026 | James Hippel | Cfo | Acquired M | 9,779 | $0.00 | $0 | 174,493 | Direct |
| 15 Aug, 2026 | William Geist | President, Protein Sciences | Acquired M | 6,416 | $0.00 | $0 | 26,919 | Direct |
| 15 Aug, 2026 | Shane Bohnen | Svp General Counsel | Acquired M | 4,350 | $0.00 | $0 | 11,703 | Direct |
| 15 Aug, 2026 | Steven C. Crouse | President Diag Spatial Bi | Acquired M | 5,423 | $0.00 | $0 | 12,184 | Direct |
| 15 Aug, 2026 | William Geist | President, Protein Sciences | Disposed F | 1,976 | $72.40 | $143.06K | 24,943 | Direct |