QDEL
Quidel Corporation
NASDAQ: QDEL · HEALTHCARE · MEDICAL DEVICES
$9.96
-6.34% today
Updated 2026-06-05
Market cap
$887.85M
P/E ratio
—
P/S ratio
0.33x
EPS (TTM)
$-17.85
Dividend yield
—
52W range
$10 – $36
Volume
2.4M
Quidel Corporation (QDEL) Insider transactions
Net insider activity
Net buying (685,474 shares)
Buy transactions
50
Sell transactions
50
All transactions
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-06 | WIDDER, KENNETH J | Director | Sale | 273 | — | — |
| 2026-06-06 | WIDDER, KENNETH J | Director | Sale | 910 | — | — |
| 2026-06-06 | WIDDER, KENNETH J | Director | Buy | 910 | — | — |
| 2026-06-06 | WIDDER, KENNETH J | Director | Buy | 273 | — | — |
| 2026-06-06 | POLAN, MARY LAKE PH D | Director | Sale | 224 | — | — |
| 2026-06-06 | POLAN, MARY LAKE PH D | Director | Sale | 749 | — | — |
| 2026-06-06 | POLAN, MARY LAKE PH D | Director | Buy | 749 | — | — |
| 2026-06-06 | POLAN, MARY LAKE PH D | Director | Buy | 224 | — | — |
| 2026-06-06 | MICHAEL, EDWARD L. | Director | Sale | 289 | — | — |
| 2026-06-06 | MICHAEL, EDWARD L. | Director | Sale | 963 | — | — |
| 2026-06-06 | MICHAEL, EDWARD L. | Director | Buy | 963 | — | — |
| 2026-06-06 | MICHAEL, EDWARD L. | Director | Buy | 289 | — | — |
| 2026-06-06 | BUECHLER, KENNETH F | Director | Sale | 497 | — | — |
| 2026-06-06 | BUECHLER, KENNETH F | Director | Sale | 1,659 | — | — |
| 2026-06-06 | BUECHLER, KENNETH F | Director | Buy | 1,659 | — | — |
| 2026-06-06 | BUECHLER, KENNETH F | Director | Buy | 497 | — | — |
| 2026-05-29 | WILKINS, JOSEPH D JR. | Director | Sale | 6,829 | — | — |
| 2026-05-29 | WILKINS, JOSEPH D JR. | Director | Buy | 6,829 | — | — |
| 2026-05-29 | WIDDER, KENNETH J | Director | Sale | 6,829 | — | — |
| 2026-05-29 | WIDDER, KENNETH J | Director | Buy | 6,829 | — | — |
| 2026-05-29 | STROBECK, MATTHEW | Director | Sale | 6,829 | — | — |
| 2026-05-29 | STROBECK, MATTHEW | Director | Buy | 6,829 | — | — |
| 2026-05-29 | RHOADS, ANN D | Director | Sale | 6,829 | — | — |
| 2026-05-29 | RHOADS, ANN D | Director | Buy | 6,829 | — | — |
| 2026-05-29 | POLAN, MARY LAKE PH D | Director | Sale | 6,829 | — | — |
| 2026-05-29 | POLAN, MARY LAKE PH D | Director | Buy | 6,829 | — | — |
| 2026-05-29 | MICHAEL, EDWARD L. | Director | Sale | 6,829 | — | — |
| 2026-05-29 | MICHAEL, EDWARD L. | Director | Buy | 6,829 | — | — |
| 2026-05-29 | HUENNEKENS, R SCOTT | Director | Sale | 6,829 | — | — |
| 2026-05-29 | HUENNEKENS, R SCOTT | Director | Buy | 6,829 | — | — |
| 2026-05-29 | DILSAVER, EVELYN S | Director | Sale | 6,829 | — | — |
| 2026-05-29 | DILSAVER, EVELYN S | Director | Buy | 6,829 | — | — |
| 2026-05-29 | CHIMINSKI, JOHN R | Director | Sale | 6,829 | — | — |
| 2026-05-29 | CHIMINSKI, JOHN R | Director | Buy | 6,829 | — | — |
| 2026-05-29 | BUECHLER, KENNETH F | Director | Sale | 6,829 | — | — |
| 2026-05-29 | BUECHLER, KENNETH F | Director | Buy | 6,829 | — | — |
| 2026-05-22 | RHOADS, ANN D | Director | Sale | 234 | — | — |
| 2026-05-22 | RHOADS, ANN D | Director | Sale | 1,173 | — | — |
| 2026-05-22 | RHOADS, ANN D | Director | Buy | 1,173 | — | — |
| 2026-05-22 | RHOADS, ANN D | Director | Buy | 234 | — | — |
| 2026-05-15 | BLASER, BRIAN J. | President and CEO | Sale | 20,759 | — | — |
| 2026-05-15 | BLASER, BRIAN J. | President and CEO | Buy | 20,759 | — | — |
| 2026-05-15 | BLASER, BRIAN J. | President and CEO | Sale | 10,252 | $10.32 | $105800.64 |
| 2026-04-26 | MCLELLAN, PHILIP D. | Chief Operations Officer | Sale | 1,946 | — | — |
| 2026-04-26 | MCLELLAN, PHILIP D. | Chief Operations Officer | Buy | 1,946 | — | — |
| 2026-04-26 | MCLELLAN, PHILIP D. | Chief Operations Officer | Sale | 699 | $11.59 | $8101.41 |
| 2026-04-26 | HANSON, BRYAN MICHAEL | EVP Global Port. Mgmt & Mkting | Sale | 1,459 | — | — |
| 2026-04-26 | HANSON, BRYAN MICHAEL | EVP Global Port. Mgmt & Mkting | Buy | 1,459 | — | — |
| 2026-04-26 | HANSON, BRYAN MICHAEL | EVP Global Port. Mgmt & Mkting | Sale | 528 | $11.59 | $6119.52 |
| 2026-04-22 | MCLELLAN, PHILIP D. | Chief Operations Officer | Sale | 3,238 | — | — |
| 2026-04-22 | MCLELLAN, PHILIP D. | Chief Operations Officer | Buy | 3,238 | — | — |
| 2026-04-22 | MCLELLAN, PHILIP D. | Chief Operations Officer | Sale | 1,162 | $11.90 | $13827.80 |
| 2026-04-22 | HANSON, BRYAN MICHAEL | EVP Global Port. Mgmt & Mkting | Sale | 3,508 | — | — |
| 2026-04-22 | HANSON, BRYAN MICHAEL | EVP Global Port. Mgmt & Mkting | Buy | 3,508 | — | — |
| 2026-04-22 | HANSON, BRYAN MICHAEL | EVP Global Port. Mgmt & Mkting | Sale | 1,269 | $11.90 | $15101.10 |
| 2026-04-15 | SISITSKY, NATHANIEL | Chief Legal Officer | Buy | 73,435 | — | — |
| 2026-04-15 | SISITSKY, NATHANIEL | Chief Legal Officer | Buy | 73,434 | — | — |
| 2026-03-28 | BUSKY, JOSEPH M. | Chief Financial Officer | Sale | 4,925 | — | — |
| 2026-03-28 | BUSKY, JOSEPH M. | Chief Financial Officer | Buy | 4,925 | — | — |
| 2026-03-28 | BUSKY, JOSEPH M. | Chief Financial Officer | Sale | 1,519 | $14.78 | $22450.82 |
| 2026-02-13 | STROBECK, MATTHEW | Director | Buy | 10,000 | $23.96 | $239586.00 |
| 2026-02-13 | BUSKY, JOSEPH M. | Chief Financial Officer | Buy | 3,370 | $23.66 | $79741.95 |
| 2026-02-13 | BLASER, BRIAN J. | President and CEO | Buy | 10,540 | $23.59 | $248660.73 |
| 2026-02-08 | HODGES, MICHELLE A | Chief Legal Officer | Sale | 3,198 | — | — |
| 2026-02-08 | HODGES, MICHELLE A | Chief Legal Officer | Buy | 3,198 | — | — |
| 2026-02-08 | HODGES, MICHELLE A | Chief Legal Officer | Sale | 1,148 | $29.10 | $33406.80 |
| 2026-02-08 | BUSKY, JOSEPH M. | Chief Financial Officer | Sale | 5,968 | — | — |
| 2026-02-08 | BUSKY, JOSEPH M. | Chief Financial Officer | Buy | 5,968 | — | — |
| 2026-02-08 | BUSKY, JOSEPH M. | Chief Financial Officer | Sale | 1,806 | $29.10 | $52554.60 |
| 2026-01-31 | MCLELLAN, PHILIP D. | Chief Operations Officer | Sale | 634 | — | — |
| 2026-01-31 | MCLELLAN, PHILIP D. | Chief Operations Officer | Sale | 2,009 | — | — |
| 2026-01-31 | MCLELLAN, PHILIP D. | Chief Operations Officer | Sale | 1,127 | — | — |
| 2026-01-31 | MCLELLAN, PHILIP D. | Chief Operations Officer | Sale | 847 | — | — |
| 2026-01-31 | MCLELLAN, PHILIP D. | Chief Operations Officer | Buy | 2,009 | — | — |
| 2026-01-31 | MCLELLAN, PHILIP D. | Chief Operations Officer | Buy | 1,127 | — | — |
| 2026-01-31 | MCLELLAN, PHILIP D. | Chief Operations Officer | Buy | 847 | — | — |
| 2026-01-31 | MCLELLAN, PHILIP D. | Chief Operations Officer | Sale | 674 | $27.17 | $18312.58 |
| 2026-01-31 | MCLELLAN, PHILIP D. | Chief Operations Officer | Buy | 634 | — | — |
| 2026-01-31 | MCLELLAN, PHILIP D. | Chief Operations Officer | Sale | 421 | $27.17 | $11438.57 |
| 2026-01-31 | MCLELLAN, PHILIP D. | Chief Operations Officer | Sale | 304 | $27.17 | $8259.68 |
| 2026-01-31 | MCLELLAN, PHILIP D. | Chief Operations Officer | Sale | 228 | $27.17 | $6194.76 |
| 2026-01-31 | HODGES, MICHELLE A | Chief Legal Officer | Sale | 1,814 | — | — |
| 2026-01-31 | HODGES, MICHELLE A | Chief Legal Officer | Sale | 1,610 | — | — |
| 2026-01-31 | HODGES, MICHELLE A | Chief Legal Officer | Buy | 1,814 | — | — |
| 2026-01-31 | HODGES, MICHELLE A | Chief Legal Officer | Buy | 1,610 | — | — |
| 2026-01-31 | HODGES, MICHELLE A | Chief Legal Officer | Sale | 651 | $27.17 | $17687.67 |
| 2026-01-31 | HODGES, MICHELLE A | Chief Legal Officer | Sale | 578 | $27.17 | $15704.26 |
| 2026-01-30 | SIEGRIST, JONATHAN PHILIP | EVP of R&D & CTO | Buy | 36,152 | — | — |
| 2026-01-30 | SIEGRIST, JONATHAN PHILIP | EVP of R&D & CTO | Buy | 36,150 | — | — |
| 2026-01-30 | MCLELLAN, PHILIP D. | Chief Operations Officer | Buy | 36,152 | — | — |
| 2026-01-30 | MCLELLAN, PHILIP D. | Chief Operations Officer | Buy | 36,150 | — | — |
| 2026-01-30 | HODGES, MICHELLE A | Chief Legal Officer | Buy | 38,562 | — | — |
| 2026-01-30 | HODGES, MICHELLE A | Chief Legal Officer | Buy | 38,561 | — | — |
| 2026-01-30 | BUSKY, JOSEPH M. | Chief Financial Officer | Buy | 29,444 | — | — |
| 2026-01-30 | BOWMAN, RONALD LEE | Chief Human Resources Officer | Buy | 36,152 | — | — |
| 2026-01-30 | BOWMAN, RONALD LEE | Chief Human Resources Officer | Buy | 36,150 | — | — |
| 2026-01-30 | BLASER, BRIAN J. | President and CEO | Buy | 213,470 | — | — |
| 2026-01-29 | SIEGRIST, JONATHAN PHILIP | EVP of R&D & CTO | Sale | 2,448 | — | — |
| 2026-01-29 | SIEGRIST, JONATHAN PHILIP | EVP of R&D & CTO | Buy | 2,448 | — | — |
| 2026-01-29 | SIEGRIST, JONATHAN PHILIP | EVP of R&D & CTO | Sale | 1,009 | $27.41 | $27656.69 |
Frequently asked questions
Are QDEL insiders buying or selling?
Over the transactions on record, QDEL insiders have been net sellers, with about $362616.90 in stock sold across 50 sales, against 3 open-market purchases.
Does insider selling at QDEL mean the stock will fall?
Not by itself. Most executive selling is pre-scheduled through 10b5-1 plans filed months in advance, and insiders sell for diversification, taxes, and liquidity far more often than out of any view on the price. Insider buying is the stronger signal, especially when several insiders buy around the same time, because there is usually only one reason to put personal cash into the stock.
Which QDEL insiders are selling the most?
Recent selling is concentrated in a few names. BLASER, BRIAN J. accounts for the largest share on record, with about $105800.64 sold. Selling by one or two individuals matters less than broad selling across the whole leadership team, which is the pattern worth watching.