As of April 22, 2026, QuidelOrtho's top three insider holders are Group Inc. Carlyle (TenPercentOwner, 8.26Mn shares), Group Inc. Carlyle (TenPercentOwner, 8.26Mn shares), Group Inc. Carlyle (TenPercentOwner, 8.26Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Group Inc. Carlyle | - | 0 | 8,260,183 | 13 Aug, 2024 |
| Group Inc. Carlyle | - | 0 | 8,260,183 | 13 Aug, 2024 |
| Group Inc. Carlyle | - | 0 | 8,260,183 | 13 Aug, 2024 |
| Douglas C Bryant | President Ceo | 549,415 | 0 | 05 Feb, 2024 |
| Kenneth F Buechler | - | 101,921 | 0 | 17 Jul, 2025 |
| Matthew Strobeck | - | 0 | 54,775 | 01 Jun, 2022 |
| Joseph M. Busky | Chief Financial Officer | 44,818 | 0 | 31 Mar, 2026 |
| Robert Joseph Bujarski | Evp Coo | 44,810 | 0 | 17 Oct, 2024 |
| Michelle A Hodges | Chief Legal Officer | 41,605 | 0 | 10 Feb, 2026 |
| Brian J. Blaser | President And Ceo | 0 | 40,073 | 13 Feb, 2026 |
| Kenneth J Widder | - | 37,061 | 0 | 25 Nov, 2025 |
| Werner Kroll | Svp, Research Development | 36,357 | 0 | 30 Jul, 2024 |
| Matthew Strobeck | - | 27,775 | 0 | 13 Feb, 2026 |
| Brian J. Blaser | President And Ceo | 25,142 | 0 | 02 Feb, 2026 |
| Edward L. Michael | - | 21,352 | 0 | 27 May, 2025 |
| Philip D. Mclellan | Chief Operations Officer | 19,174 | 0 | 03 Feb, 2026 |
| Michael S. Iskra | Evp Cco | 16,644 | 0 | 04 Jun, 2024 |
| Michelle A. Hodges | Svp, General Counsel | 13,961 | 0 | 17 Oct, 2024 |
| Jonathan Philip Siegrist | Evp Of Rd Cto | 13,419 | 0 | 02 Feb, 2026 |
| Mary Lake Ph D Polan | - | 12,640 | 0 | 24 Nov, 2025 |
| Joseph D Jr. Wilkins | - | 11,876 | 0 | 01 Dec, 2025 |
| Evelyn S Dilsaver | - | 10,624 | 0 | 28 May, 2025 |
| Joseph M. Busky | Chief Financial Officer | 0 | 10,290 | 19 Feb, 2026 |
| Ronald Lee Bowman | Chief Human Resources Officer | 3,375 | 0 | 02 Feb, 2026 |
| John R Chiminski | - | 2,523 | 0 | 27 May, 2025 |
| R Scott Huennekens | - | 2,523 | 0 | 27 May, 2025 |
| Louise Brandy | Svp, Chief Information Officer | 2,154 | 0 | 30 Apr, 2024 |
| James Prutow | - | 1,519 | 0 | 30 May, 2024 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 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 | 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 | Brian J. Blaser | Common Stock | A | 10,540 | $23.59 | 40,073 | I | P |
| 08 Feb, 2026 | Michelle A Hodges | Common Stock | A | 3,198 | $0.00 | 42,753 | D | A |
| 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 | D | 1,148 | $29.10 | 41,605 | D | F |
| 08 Feb, 2026 | Joseph M. Busky | Common Stock | D | 1,806 | $29.10 | 41,412 | D | F |
| 08 Feb, 2026 | Michelle A Hodges | Restricted Stock Units | D | 3,198 | $0.00 | 3,198 | D | M |
| 08 Feb, 2026 | Joseph M. Busky | Restricted Stock Units | D | 5,968 | $0.00 | 5,969 | D | M |
| 31 Jan, 2026 | Michelle A Hodges | Common Stock | A | 1,610 | $0.00 | 38,970 | D | A |
| 30 Jan, 2026 | Joseph M. Busky | Restricted Stock Units | A | 29,444 | $0.00 | 29,444 | D | A |
| 31 Jan, 2026 | Philip D. Mclellan | Common Stock | A | 1,127 | $0.00 | 17,311 | D | A |
| 30 Jan, 2026 | Brian J. Blaser | Restricted Stock Units | A | 213,470 | $0.00 | 213,470 | D | A |
| 30 Jan, 2026 | Jonathan Philip Siegrist | Restricted Stock Units | A | 36,152 | $0.00 | 36,152 | D | A |
| 30 Jan, 2026 | Ronald Lee Bowman | Restricted Stock Units | A | 36,152 | $0.00 | 36,152 | D | A |
| 30 Jan, 2026 | Jonathan Philip Siegrist | Non-Qualified Stock Options | A | 36,150 | $0.00 | 36,150 | D | A |