| SC 13G | 2022-05-05 | Senvest Management, LLC | QUIDEL CORP /DE/ | 2,161,521 | 5.2% | EDGAR |
| SC 13G/A | 2022-02-14 | PRICE T ROWE ASSOCIATES INC /MD/ | QUIDEL CORP /DE/ | 6,108,899 | 14.6% | EDGAR |
| SC 13G/A | 2022-02-14 | BROWN CAPITAL MANAGEMENT LLC | QUIDEL CORP /DE/ | 2,642,671 | 6.3% | EDGAR |
| SC 13G | 2022-02-14 | ALGER ASSOCIATES INC | QUIDEL CORP /DE/ | 2,223,343 | 5.3% | EDGAR |
| SC 13G/A | 2022-02-10 | VANGUARD GROUP INC | QUIDEL CORP /DE/ | 3,426,080 | 8.2% | EDGAR |
| SC 13G/A | 2022-02-01 | BlackRock Inc. | QUIDEL CORP /DE/ | 3,301,994 | 7.9% | EDGAR |
| SC 13G/A | 2021-04-12 | PRICE T ROWE ASSOCIATES INC /MD/ | QUIDEL CORP /DE/ | 6,425,323 | 15.1% | EDGAR |
| SC 13G/A | 2021-02-16 | PRICE T ROWE ASSOCIATES INC /MD/ | QUIDEL CORP /DE/ | 4,261,838 | 10.1% | EDGAR |
| SC 13G/A | 2021-02-16 | FEINBERG LARRY N | QUIDEL CORP /DE/ | 1,879,121 | 4.5% | EDGAR |
| SC 13G/A | 2021-02-12 | BROWN CAPITAL MANAGEMENT LLC | QUIDEL CORP /DE/ | 2,282,444 | 5.4% | EDGAR |
| SC 13G/A | 2021-02-10 | VANGUARD GROUP INC | QUIDEL CORP /DE/ | 3,604,549 | 8.6% | EDGAR |
| SC 13G/A | 2021-02-01 | BlackRock Inc. | QUIDEL CORP /DE/ | 3,510,895 | 8.3% | EDGAR |
| SC 13G/A | 2020-10-13 | PRICE T ROWE ASSOCIATES INC /MD/ | QUIDEL CORP /DE/ | 4,236,715 | 10.0% | EDGAR |
| SC 13G/A | 2020-08-10 | PRICE T ROWE ASSOCIATES INC /MD/ | QUIDEL CORP /DE/ | 3,318,885 | 7.9% | EDGAR |
| SC 13G/A | 2020-06-10 | BROWN CAPITAL MANAGEMENT LLC | QUIDEL CORP /DE/ | 2,951,220 | 7.0% | EDGAR |
| SC 13G/A | 2020-02-14 | PRICE T ROWE ASSOCIATES INC /MD/ | QUIDEL CORP /DE/ | 5,717,745 | 13.7% | EDGAR |
| SC 13G/A | 2020-02-14 | FEINBERG LARRY N | QUIDEL CORP /DE/ | 2,004,688 | 4.8% | EDGAR |
| SC 13G/A | 2020-02-14 | BROWN CAPITAL MANAGEMENT LLC | QUIDEL CORP /DE/ | 5,617,614 | 13.5% | EDGAR |
| SC 13G/A | 2020-02-12 | VANGUARD GROUP INC | QUIDEL CORP /DE/ | 3,679,767 | 8.8% | EDGAR |
| SC 13G/A | 2020-02-06 | BlackRock Inc. | QUIDEL CORP /DE/ | 2,584,922 | 6.2% | EDGAR |