PINKSTON ARNOLD A (CIK 1343989) reported 2 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-04-23). Recent activity: Buy BIO BIO.B (407 shares), Buy BIO BIO.B (308 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-23 | BIO-RAD LABORATORIES, INC. (BIO BIO.B) | Director | Buy | 407 | $0 |
| 2025-04-24 | BIO-RAD LABORATORIES, INC. (BIO BIO.B) | Director | Buy | 308 | $0 |
Source: SEC Form 4 filings · as of 2026-04-23