| SC 13G | 2024-02-14 | T. Rowe Price Investment Management, Inc. | ATRION CORP | 115,477 | 6.6% | EDGAR |
| SC 13G/A | 2024-02-13 | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | ATRION CORP | 194,800 | 11.1% | EDGAR |
| SC 13G/A | 2024-02-12 | Neuberger Berman Group LLC | ATRION CORP | 183,012 | 10.4% | EDGAR |
| SC 13G/A | 2024-01-29 | BlackRock Inc. | ATRION CORP | 115,446 | 6.6% | EDGAR |
| SC 13G/A | 2023-02-14 | PRICE T ROWE ASSOCIATES INC /MD/ | ATRION CORP | 8,777 | 0.5% | EDGAR |
| SC 13G/A | 2023-02-14 | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | ATRION CORP | 190,681 | 10.8% | EDGAR |
| SC 13G | 2023-02-14 | T. Rowe Price Investment Management, Inc. | ATRION CORP | 115,570 | 6.5% | EDGAR |
| SC 13G/A | 2023-02-10 | Neuberger Berman Group LLC | ATRION CORP | 194,910 | 11.0% | EDGAR |
| SC 13G/A | 2023-02-01 | BlackRock Inc. | ATRION CORP | 113,355 | 6.4% | EDGAR |
| SC 13G/A | 2022-02-14 | PRICE T ROWE ASSOCIATES INC /MD/ | ATRION CORP | 145,019 | 8.0% | EDGAR |
| SC 13G/A | 2022-02-14 | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | ATRION CORP | 190,555 | 10.6% | EDGAR |
| SC 13G/A | 2022-02-11 | Neuberger Berman Group LLC | ATRION CORP | 208,151 | 11.6% | EDGAR |
| SC 13G/A | 2022-02-01 | BlackRock Inc. | ATRION CORP | 114,537 | 6.4% | EDGAR |
| SC 13G/A | 2021-02-16 | PRICE T ROWE ASSOCIATES INC /MD/ | ATRION CORP | 138,392 | 7.5% | EDGAR |
| SC 13G/A | 2021-02-11 | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | ATRION CORP | 187,602 | 10.3% | EDGAR |
| SC 13G/A | 2021-02-10 | Neuberger Berman Group LLC | ATRION CORP | 181,958 | 10.0% | EDGAR |
| SC 13G/A | 2021-02-10 | Neuberger Berman Group LLC | ATRION CORP | 183,442 | 10.0% | EDGAR |
| SC 13G/A | 2021-01-29 | BlackRock Inc. | ATRION CORP | 131,299 | 7.2% | EDGAR |
| SC 13G/A | 2020-02-14 | PRICE T ROWE ASSOCIATES INC /MD/ | ATRION CORP | 146,392 | 7.8% | EDGAR |
| SC 13G/A | 2020-02-13 | Neuberger Berman Group LLC | ATRION CORP | 163,395 | 8.8% | EDGAR |