As of June 18, 2026, QuidelOrtho's top three insider holders are Group Inc. Carlyle (TenPercentOwner, 8.26Mn shares), Douglas C Bryant (President Ceo, 549.41K shares), Kenneth F Buechler (Director, 101.92K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Kenneth J Widder | - | 37,061 | 0 | 25 Nov, 2025 |
| Mary Lake Ph D Polan | - | 12,640 | 0 | 24 Nov, 2025 |
| Kenneth F Buechler | - | 101,921 | 0 | 17 Jul, 2025 |
| Robert Joseph Bujarski | Evp Coo | 44,810 | 0 | 17 Oct, 2024 |
| R Scott Huennekens | - | 2,523 | 0 | 27 May, 2025 |
| Matthew Strobeck | - | 0 | 54,775 | 01 Jun, 2022 |
| Joseph M. Busky | Chief Financial Officer | 44,818 | 0 | 31 Mar, 2026 |
| Evelyn S Dilsaver | - | 10,624 | 0 | 28 May, 2025 |
| Edward L. Michael | - | 21,352 | 0 | 27 May, 2025 |
| Douglas C Bryant | President Ceo | 549,415 | 0 | 05 Feb, 2024 |
| John R Chiminski | - | 2,523 | 0 | 27 May, 2025 |
| Brian J. Blaser | President And Ceo | 0 | 40,073 | 13 Feb, 2026 |
| Group Inc. Carlyle | - | 0 | 8,260,183 | 13 Aug, 2024 |
| Werner Kroll | Svp, Research Development | 36,357 | 0 | 30 Jul, 2024 |
| Michelle A Hodges | Chief Legal Officer | 41,605 | 0 | 10 Feb, 2026 |
| Michael S. Iskra | Evp Cco | 16,644 | 0 | 04 Jun, 2024 |
| Joseph D Jr. Wilkins | - | 11,876 | 0 | 01 Dec, 2025 |
| Louise Brandy | Svp, Chief Information Officer | 2,154 | 0 | 30 Apr, 2024 |
| James Prutow | - | 1,519 | 0 | 30 May, 2024 |
| Ronald Lee Bowman | Chief Human Resources Officer | 3,375 | 0 | 02 Feb, 2026 |
| Jonathan Philip Siegrist | Evp Of Rd Cto | 13,419 | 0 | 02 Feb, 2026 |
| Philip D. Mclellan | Chief Operations Officer | 21,250 | 0 | 24 Apr, 2026 |
| Bryan Michael Hanson | Evp Global Port. Mgmt Mkting | 3,139 | 0 | 24 Apr, 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 |
|---|---|---|---|---|---|---|---|---|
| 22 Apr, 2026 | Philip D. Mclellan | Common Stock | A | 3,238 | $0.00 | 22,412 | D | A |
| 22 Apr, 2026 | Bryan Michael Hanson | Common Stock | A | 3,508 | $0.00 | 4,408 | D | A |
| 22 Apr, 2026 | Bryan Michael Hanson | Common Stock | A | 3,508 | $0.00 | 4,408 | D | A |
| 22 Apr, 2026 | Philip D. Mclellan | Common Stock | D | 1,162 | $11.90 | 21,250 | D | F |
| 22 Apr, 2026 | Bryan Michael Hanson | Common Stock | D | 1,269 | $11.90 | 3,139 | D | F |
| 22 Apr, 2026 | Bryan Michael Hanson | Common Stock | D | 1,269 | $11.90 | 3,139 | D | F |
| 22 Apr, 2026 | Bryan Michael Hanson | Restricted Stock Units | D | 3,508 | $0.00 | 3,508 | D | M |
| 22 Apr, 2026 | Bryan Michael Hanson | Restricted Stock Units | D | 3,508 | $0.00 | 3,508 | D | M |
| 22 Apr, 2026 | Philip D. Mclellan | Restricted Stock Units | D | 3,238 | $0.00 | 3,238 | D | M |
| 28 Mar, 2026 | Joseph M. Busky | Common Stock | A | 4,925 | $0.00 | 46,337 | D | A |
| 28 Mar, 2026 | Joseph M. Busky | Common Stock | D | 1,519 | $14.78 | 44,818 | D | F |
| 28 Mar, 2026 | Joseph M. Busky | Restricted Stock Units | D | 4,925 | $0.00 | 0 | D | M |
| 13 Feb, 2026 | Joseph M. Busky | Common Stock | A | 3,370 | $23.66 | 10,290 | I | P |
| 13 Feb, 2026 | Matthew Strobeck | Common Stock | A | 10,000 | $23.96 | 27,775 | D | P |
| 13 Feb, 2026 | Joseph M. Busky | Common Stock | A | 3,370 | $23.66 | 10,290 | I | P |
| 13 Feb, 2026 | Matthew Strobeck | Common Stock | A | 10,000 | $23.96 | 27,775 | D | P |
| 13 Feb, 2026 | Matthew Strobeck | Common Stock | A | 10,000 | $23.96 | 27,775 | D | P |
| 13 Feb, 2026 | Brian J. Blaser | Common Stock | A | 10,540 | $23.59 | 40,073 | I | P |
| 08 Feb, 2026 | Joseph M. Busky | Common Stock | A | 5,968 | $0.00 | 43,218 | D | A |
| 08 Feb, 2026 | Michelle A Hodges | Common Stock | A | 3,198 | $0.00 | 42,753 | D | A |