QDEL's three largest insider shareholders as of September 29, 2026 are Group Inc. Carlyle (TenPercentOwner, 8.26Mn shares), Douglas C Bryant (President Ceo, 549.41K shares), Kenneth F Buechler (Director, 110.91K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Group Inc. Carlyle | TenPercentOwner | 0 | 8,260,183 | 8,260,183 | 87.7% | 13 Aug, 2024 |
| 2 | Douglas C Bryant | President Ceo | 549,415 | 0 | 549,415 | 5.8% | 05 Feb, 2024 |
| 3 | Kenneth F Buechler | Director | 110,906 | 0 | 110,906 | 1.2% | 09 Jun, 2026 |
| 4 | Michelle A Hodges | Chief Legal Officer | 55,566 | 0 | 55,566 | 0.6% | 10 Feb, 2026 |
| 5 | Kenneth J Widder | Director | 45,073 | 0 | 45,073 | 0.5% | 09 Jun, 2026 |
| 6 | Joseph M. Busky | Chief Financial Officer | 44,818 | 0 | 44,818 | 0.5% | 31 Mar, 2026 |
| 7 | Robert Joseph Bujarski | Evp Coo | 44,810 | 0 | 44,810 | 0.5% | 17 Oct, 2024 |
| 8 | Werner Kroll | Svp, Research Development | 36,357 | 0 | 36,357 | 0.4% | 30 Jul, 2024 |
| 9 | Brian J. Blaser | President And Ceo | 35,649 | 0 | 35,649 | 0.4% | 19 May, 2026 |
| 10 | Matthew Strobeck | Director | 34,604 | 0 | 34,604 | 0.4% | 02 Jun, 2026 |
| 11 | Edward L. Michael | Director | 29,433 | 0 | 29,433 | 0.3% | 09 Jun, 2026 |
| 12 | Ann D Rhoads | Director | 23,257 | 0 | 23,257 | 0.2% | 02 Jun, 2026 |
| 13 | Philip D. Mclellan | Chief Operations Officer | 22,497 | 0 | 22,497 | 0.2% | 28 Apr, 2026 |
| 14 | Mary Lake Ph D Polan | Director | 20,442 | 0 | 20,442 | 0.2% | 09 Jun, 2026 |
| 15 | Joseph D Jr. Wilkins | Director | 18,705 | 0 | 18,705 | 0.2% | 02 Jun, 2026 |
| 16 | Evelyn S Dilsaver | Director | 17,453 | 0 | 17,453 | 0.2% | 02 Jun, 2026 |
| 17 | Michael S. Iskra | Evp Cco | 16,644 | 0 | 16,644 | 0.2% | 04 Jun, 2024 |
| 18 | Jonathan Philip Siegrist | Evp Of Rd Cto | 13,419 | 0 | 13,419 | 0.1% | 02 Feb, 2026 |
| 19 | John R Chiminski | Director | 9,352 | 0 | 9,352 | 0.1% | 02 Jun, 2026 |
| 20 | R Scott Huennekens | Director | 9,352 | 0 | 9,352 | 0.1% | 02 Jun, 2026 |
| 21 | Bryan Michael Hanson | Evp Global Port. Mgmt Mkting | 8,055 | 0 | 8,055 | 0.1% | 18 Aug, 2026 |
| 22 | Ronald Lee Bowman | Chief Human Resources Officer | 5,020 | 0 | 5,020 | 0.1% | 17 Sep, 2026 |
| 23 | Christopher M Smith | Director | 2,249 | 0 | 2,249 | 0.0% | 08 Jun, 2023 |
| 24 | Louise Brandy | Svp, Chief Information Officer | 2,154 | 0 | 2,154 | 0.0% | 30 Apr, 2024 |
| 25 | James Prutow | Director | 1,519 | 0 | 1,519 | 0.0% | 30 May, 2024 |
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 Sep, 2026 | Ronald Lee Bowman | Chief Human Resources Officer | Acquired M | 2,566 | $0.00 | $0 | 5,941 | Direct |
| 15 Sep, 2026 | Ronald Lee Bowman | Chief Human Resources Officer | Disposed F | 921 | $10.63 | $9.79K | 5,020 | Direct |
| 15 Sep, 2026 | Ronald Lee Bowman | Chief Human Resources Officer | Disposed M | 2,566 | $0.00 | $0 | 2,566 | Direct |
| 15 Aug, 2026 | Bryan Michael Hanson | Evp Global Port. Mgmt Mkting | Acquired M | 446 | $0.00 | $0 | 8,217 | Direct |
| 15 Aug, 2026 | Bryan Michael Hanson | Evp Global Port. Mgmt Mkting | Disposed F | 162 | $14.30 | $2.32K | 8,055 | Direct |
| 15 Aug, 2026 | Bryan Michael Hanson | Evp Global Port. Mgmt Mkting | Disposed M | 446 | $0.00 | $0 | 0 | Direct |
| 15 Jul, 2026 | Micah W Young | Chief Financial Officer | Acquired A | 356,555 | $0.00 | $0 | 356,555 | Direct |
| 01 Jul, 2026 | Bryan Michael Hanson | Evp Global Port. Mgmt Mkting | Acquired M | 5,797 | $0.00 | $0 | 9,867 | Direct |
| 01 Jul, 2026 | Bryan Michael Hanson | Evp Global Port. Mgmt Mkting | Disposed F | 2,096 | $18.18 | $38.11K | 7,771 | Direct |
| 01 Jul, 2026 | Bryan Michael Hanson | Evp Global Port. Mgmt Mkting | Disposed M | 5,797 | $0.00 | $0 | 11,595 | Direct |
| 25 Jun, 2026 | Ann D Rhoads | Director | Acquired A | 15,532 | $0.00 | $0 | 15,532 | Direct |
| 25 Jun, 2026 | R Scott Huennekens | Director | Acquired A | 15,532 | $0.00 | $0 | 15,532 | Direct |
| 25 Jun, 2026 | Mary Lake Ph D Polan | Director | Acquired A | 15,532 | $0.00 | $0 | 15,532 | Direct |
| 25 Jun, 2026 | Kenneth J Widder | Director | Acquired A | 15,532 | $0.00 | $0 | 15,532 | Direct |
| 25 Jun, 2026 | Edward L. Michael | Director | Acquired A | 15,532 | $0.00 | $0 | 15,532 | Direct |
| 25 Jun, 2026 | John R Chiminski | Director | Acquired A | 15,532 | $0.00 | $0 | 15,532 | Direct |
| 25 Jun, 2026 | Joseph D Jr. Wilkins | Director | Acquired A | 15,532 | $0.00 | $0 | 15,532 | Direct |
| 25 Jun, 2026 | Evelyn S Dilsaver | Director | Acquired A | 15,532 | $0.00 | $0 | 15,532 | Direct |
| 25 Jun, 2026 | Kenneth F Buechler | Director | Acquired A | 15,532 | $0.00 | $0 | 15,532 | Direct |
| 25 Jun, 2026 | Mary Lake Ph D Polan | Director | Acquired A | 5,547 | $0.00 | $0 | 5,547 | Direct |