Comparable stake leader
BlackRock, Inc.
SEC ownership of QuidelOrtho Corp
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001906324.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
31 Jul 2026
- Public ticker
- QDEL on Nasdaq
- Parsed ownership sources
-
13D/G, 13F, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
BlackRock, Inc.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
BlackRock, Inc.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
31 Jul 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001906324
- Issuer location
- San Diego, CA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of QuidelOrtho Corp (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
31 Jul 2026
13D/G
13F
3/4/5
Lead comparable stake: 15%
13D/G row: BlackRock, Inc.
Showing 1-8 of 50 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 15%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
15%
FMR LLC
12%
T. Rowe Price Investment Manageme...
8.3%
Newtyn Management, LLC
7.8%
VANGUARD PORTFOLIO MANAGEMENT LLC
6%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13D/G
13F
Company
|
15%
|
$288,065,584
9,995,336 shares
|
+$44,818,587 | 30 Jun 2025 |
| FMR LLC |
13D/G
|
12%
|
$129,013,647
7,852,322 shares
|
+$20,721,023 | 30 Apr 2026 |
| T. Rowe Price Investment Management, Inc. |
13D/G
|
8.3%
|
$92,542,550
5,629,965 shares
|
-$92,195,653 | 31 Mar 2026 |
| Newtyn Management, LLC |
13D/G
|
7.8%
|
$87,079,000
5,300,000 shares
|
+$12,183,305 | 29 Apr 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
Vanguard Portfolio Management
|
6%
|
$67,168,600
4,088,168 shares
|
$0 | 31 Mar 2026 |
| Rubric Capital Management LP |
13D/G
|
5.6%
|
$126,043,729
3,777,157 shares
|
-$28,717,588 | 31 Dec 2025 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
Vanguard Capital Management
|
5.2%
|
$58,697,210
3,572,563 shares
|
$0 | 31 Mar 2026 |
| Neuberger Berman Group LLC |
13D/G
|
4.9%
|
$60,489,471
3,381,189 shares
|
-$2,744,863 | 31 Jul 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to buying over the last 12 months. Net value: +$1,135,885.
Buys
$1,247,850
Insiders: 6
Sells
$111,965
Insiders: 1
Net
+$1,135,885
Shares: +50,274
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 54,300
Shares: 4,026
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 54,300 | 4,026 | $1,247,850 | $111,965 | +$1,135,885 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 30 reporting-owner rows connected to QuidelOrtho Corp. Open a relationship link for the CIK-to-CIK filing trail.
Rows
30
Largest Forms 3/4/5 holder
Douglas C. Bryant
Net 12M change
+$1,135,885
Latest report
15 Jul 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Douglas C. Bryant | President & CEO, Director | $40,708,019 | Mixed | 08 Feb 2024 | ||
| Brian J. Blaser | President and CEO | $4,040,241 | +$750,238 | +23% | Mixed | 15 May 2026 |
| Christopher M. Smith | Director | $2,462,640 | Mixed | 06 Jun 2023 | ||
| Kenneth F. Buechler | Director | $2,030,509 | Mixed | 25 Jun 2026 | ||
| Robert J. Bujarski | Evp & Coo | $1,819,095 | Mixed | 15 Oct 2024 | ||
| Joseph M. Busky | Chief Financial Officer | $1,745,717 | +$204,047 | +13% | Mixed | 28 Mar 2026 |
| Matthew W. Strobeck | Director | $1,468,495 | +$239,586 | +19% | Mixed | 29 May 2026 |
| Werner Kroll | SVP, Research & Development | $1,414,651 | Mixed | 28 Jul 2024 | ||
| Michelle A. Hodges | Chief Legal Officer | $1,316,343 | Mixed | 08 Feb 2026 | ||
| Michael S. Iskra | Evp & Cco | $894,317 | Mixed | 01 Jun 2024 | ||
| WIDDER KENNETH J | Director | $849,361 | -$111,965 | -12% | Mixed | 25 Jun 2026 |
| Patrick Klein | Chief Administrative Officer | $749,578 | Mixed | 08 Feb 2024 | ||
| Ph.D. Mary Lake Polan | Director | $711,667 | +$22,430 | +3.3% | Mixed | 25 Jun 2026 |
| Jonathan P. Siegrist | EVP of R&D & CTO | $672,075 | Mixed | 30 Jan 2026 | ||
| Edward L. Michael | Director | $603,554 | Mixed | 25 Jun 2026 | ||
| Ronald Lee Bowman | Chief Human Resources Officer | $457,654 | Mixed | 30 Jan 2026 | ||
| Ann D. Rhoads | Director | $391,388 | +$21,206 | +5.7% | Mixed | 25 Jun 2026 |
| Philip D. McLellan | Chief Operations Officer | $369,625 | Mixed | 26 Apr 2026 | ||
| Joseph D. Wilkins Jr. | Director | $307,323 | +$10,343 | +3.5% | Mixed | 25 Jun 2026 |
| Evelyn S. Dilsaver | Director | $286,752 | Mixed | 25 Jun 2026 |
Recent insider transactions for QuidelOrtho Corp
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Micah W. Young | QDEL | Restricted Stock Units | Award | 356,555 | 356,555 | 15 Jul 2026 | Direct | |||
| Bryan M. Hanson | QDEL | Common Stock | Tax liability | -21.2% | -2,096 | 7,771 | 01 Jul 2026 | Direct | ||
| Bryan M. Hanson | QDEL | Common Stock | Options Exercise | 142.4% | 5,797 | 9,867 | 01 Jul 2026 | Direct | ||
| Bryan M. Hanson | QDEL | Restricted Stock Units | Options Exercise | -33.3% | -5,797 | 11,595 | 01 Jul 2026 | Direct | ||
| Widder Kenneth J | QDEL | Restricted Stock Units (Premium) | Award | 1,997 | 1,997 | 25 Jun 2026 | Direct | |||
| Widder Kenneth J | QDEL | Restricted Stock Units (Converted) | Award | 6,656 | 6,656 | 25 Jun 2026 | Direct | |||
| Widder Kenneth J | QDEL | Restricted Stock Units (Equity Grant) | Award | 15,532 | 15,532 | 25 Jun 2026 | Direct | |||
| Richard Scott Huennekens | QDEL | Restricted Stock Units (Equity Grant) | Award | 15,532 | 15,532 | 25 Jun 2026 | Direct | |||
| John R. Chiminski | QDEL | Restricted Stock Units (Premium) | Award | 1,109 | 1,109 | 25 Jun 2026 | Direct | |||
| John R. Chiminski | QDEL | Restricted Stock Units (Converted) | Award | 5,547 | 5,547 | 25 Jun 2026 | Direct | |||
| John R. Chiminski | QDEL | Restricted Stock Units (Equity Grant) | Award | 15,532 | 15,532 | 25 Jun 2026 | Direct | |||
| Joseph D. Wilkins Jr. | QDEL | Restricted Stock Units (Equity Grant) | Award | 15,532 | 15,532 | 25 Jun 2026 | Direct | |||
| Ann D. Rhoads | QDEL | Restricted Stock Units (Premium) | Award | 369 | 369 | 25 Jun 2026 | Direct | |||
| Ann D. Rhoads | QDEL | Restricted Stock Units (Converted) | Award | 3,698 | 3,698 | 25 Jun 2026 | Direct | |||
| Ann D. Rhoads | QDEL | Restricted Stock Units (Equity Grant) | Award | 15,532 | 15,532 | 25 Jun 2026 | Direct | |||
| Ph.D. Mary Lake Polan | QDEL | Restricted Stock Units (Premium) | Award | 1,664 | 1,664 | 25 Jun 2026 | Direct | |||
| Ph.D. Mary Lake Polan | QDEL | Restricted Stock Units (Converted) | Award | 5,547 | 5,547 | 25 Jun 2026 | Direct | |||
| Ph.D. Mary Lake Polan | QDEL | Restricted Stock Units (Equity Grant) | Award | 15,532 | 15,532 | 25 Jun 2026 | Direct | |||
| Edward L. Michael | QDEL | Restricted Stock Units (Premium) | Award | 1,053 | 1,053 | 25 Jun 2026 | Direct | |||
| Edward L. Michael | QDEL | Restricted Stock Units (Converted) | Award | 3,513 | 3,513 | 25 Jun 2026 | Direct | |||
| Edward L. Michael | QDEL | Restricted Stock Units (Equity Grant) | Award | 15,532 | 15,532 | 25 Jun 2026 | Direct | |||
| Evelyn S. Dilsaver | QDEL | Restricted Stock Units (Equity Grant) | Award | 15,532 | 15,532 | 25 Jun 2026 | Direct | |||
| Kenneth F. Buechler | QDEL | Restricted Stock Units (Premium) | Award | 3,661 | 3,661 | 25 Jun 2026 | Direct | |||
| Kenneth F. Buechler | QDEL | Restricted Stock Units (Converted) | Award | 12,204 | 12,204 | 25 Jun 2026 | Direct | |||
| Kenneth F. Buechler | QDEL | Restricted Stock Units (Equity Grant) | Award | 15,532 | 15,532 | 25 Jun 2026 | Direct | |||
| Widder Kenneth J | QDEL | Common Stock | Award | 2.7% | 1,183 | 45,073 | 06 Jun 2026 | Direct | ||
| Widder Kenneth J | QDEL | Restricted Stock Units (Premium) | Options Exercise | -100% | -273 | 0 | 06 Jun 2026 | Direct | ||
| Widder Kenneth J | QDEL | Restricted Stock Units (Converted) | Options Exercise | -100% | -910 | 0 | 06 Jun 2026 | Direct | ||
| Ph.D. Mary Lake Polan | QDEL | Common Stock | Award | 5% | 973 | 20,442 | 06 Jun 2026 | Direct | ||
| Ph.D. Mary Lake Polan | QDEL | Restricted Stock Units (Premium) | Options Exercise | -100% | -224 | 0 | 06 Jun 2026 | Direct | ||
| Ph.D. Mary Lake Polan | QDEL | Restricted Stock Units (Converted) | Options Exercise | -100% | -749 | 0 | 06 Jun 2026 | Direct | ||
| Kenneth F. Buechler | QDEL | Common Stock | Award | 1.98% | 2,156 | 110,906 | 06 Jun 2026 | Direct | ||
| Kenneth F. Buechler | QDEL | Restricted Stock Units (Premium) | Options Exercise | -100% | -497 | 0 | 06 Jun 2026 | Direct | ||
| Kenneth F. Buechler | QDEL | Restricted Stock Units (Converted) | Options Exercise | -100% | -1,659 | 0 | 06 Jun 2026 | Direct | ||
| Edward L. Michael | QDEL | Common Stock | Award | 4.44% | 1,252 | 29,433 | 06 Jun 2026 | Direct | ||
| Edward L. Michael | QDEL | Restricted Stock Units (Premium) | Options Exercise | -100% | -289 | 0 | 06 Jun 2026 | Direct | ||
| Edward L. Michael | QDEL | Restricted Stock Units (Converted) | Options Exercise | -100% | -963 | 0 | 06 Jun 2026 | Direct | ||
| Matthew W. Strobeck | QDEL | Common Stock | Award | 24.6% | 6,829 | 34,604 | 29 May 2026 | Direct | ||
| Matthew W. Strobeck | QDEL | Restricted Stock Units (Equity Grant) | Options Exercise | -100% | -6,829 | 0 | 29 May 2026 | Direct | ||
| Widder Kenneth J | QDEL | Common Stock | Award | 18.4% | 6,829 | 43,890 | 29 May 2026 | Direct | ||
| Widder Kenneth J | QDEL | Restricted Stock Units (Equity Grant) | Options Exercise | -100% | -6,829 | 0 | 29 May 2026 | Direct | ||
| Ph.D. Mary Lake Polan | QDEL | Common Stock | Award | 54% | 6,829 | 19,469 | 29 May 2026 | Direct | ||
| Ph.D. Mary Lake Polan | QDEL | Restricted Stock Units (Equity Grant) | Options Exercise | -100% | -6,829 | 0 | 29 May 2026 | Direct | ||
| Kenneth F. Buechler | QDEL | Common Stock | Award | 6.7% | 6,829 | 108,750 | 29 May 2026 | Direct | ||
| Kenneth F. Buechler | QDEL | Restricted Stock Units (Equity Grant) | Options Exercise | -100% | -6,829 | 0 | 29 May 2026 | Direct | ||
| John R. Chiminski | QDEL | Common Stock | Award | 270.7% | 6,829 | 9,352 | 29 May 2026 | Direct | ||
| John R. Chiminski | QDEL | Restricted Stock Units (Equity Grant) | Options Exercise | -100% | -6,829 | 0 | 29 May 2026 | Direct | ||
| Richard Scott Huennekens | QDEL | Common Stock | Award | 270.7% | 6,829 | 9,352 | 29 May 2026 | Direct | ||
| Richard Scott Huennekens | QDEL | Restricted Stock Units (Equity Grant) | Options Exercise | -100% | -6,829 | 0 | 29 May 2026 | Direct | ||
| Joseph D. Wilkins Jr. | QDEL | Common Stock | Award | 57.5% | 6,829 | 18,705 | 29 May 2026 | Direct |
* marks a reported price that did not pass the local price check.