Quidel Corporation
Ownership
Ownership Structure
Who owns Quidel Corporation (QDEL)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 89.2% of the shares are freely tradable; institutional investors hold 124.1%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 15.24 | 10,449,127 | +1.0 | 03/31/2026 |
| FMR Inc | 9.61 | 6,591,152 | +21.6 | 03/31/2026 |
| T. Rowe Price Investment Management,Inc. | 8.21 | 5,629,965 | -66.4 | 03/31/2026 |
| Newtyn Management LLC | 6.65 | 4,558,472 | +51.2 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 5.88 | 4,031,768 | +0.0 | 03/31/2026 |
| American Century Companies Inc | 4.82 | 3,307,079 | +15.8 | 06/30/2026 |
| Rubric Capital Management LP | 4.82 | 3,306,281 | -12.5 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 6.07 | 4,165,772 | +0.0 | 08/31/2026 |
| Fidelity Value | 5.55 | 3,806,300 | -12.9 | 07/31/2026 |
| Avantis US Small Cap Value ETF | 4.76 | 3,261,806 | +0.1 | 08/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Hanson Bryan Michael | EVP Global Port. Mgmt & Mkting | 8,055 | 85,383 $ | Aug 15, 2026 | direct |
| Bowman Ronald Lee | Chief Human Resources Officer | 5,020 | 53,212 $ | Sep 15, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 15, 2026 | Bowman Ronald Lee | Chief Human Resources Officer | Other | 921 | 10.63 | 9,790 |
| Sep 15, 2026 | Bowman Ronald Lee | Chief Human Resources Officer | Other | 2,566 | 0.00 | – |
| Aug 15, 2026 | Hanson Bryan Michael | EVP Global Port. Mgmt & Mkting | Other | 162 | 14.30 | 2,317 |
| Aug 15, 2026 | Hanson Bryan Michael | EVP Global Port. Mgmt & Mkting | Other | 446 | 0.00 | – |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 18, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.