Insiders / Sheridan John F
Sheridan John F
CIK 1365369personinsider
Companies
1
First seen
Feb 19, 2026
Last activity
Jun 2, 2026
Companies
| Company | Shares held | Latest |
|---|---|---|
| Tandem Diabetes Care Inc · TNDM | 152,443 | — |
All securities held
2 positions · latest reported per filing
| Company | Security | Shares |
|---|---|---|
| Tandem Diabetes Care Inc | Common Stock | 152,443 |
| Tandem Diabetes Care Inc | Restricted Stock UnitDerivative | 191,103 |
Activity
InsidersInstitutions
This person's insider trades (Form 4), across every company.| Date | Action | Company | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|
| May 15, 2026 | Other | TNDM Tandem Diabetes Care Inc Common Stock | $242.9K | -19K -11.14% | 151,107 0.22% of shares | low |
| Feb 17, 2026 | Other | TNDM Tandem Diabetes Care Inc Common Stock | $45.5K | -2K -1.89% | 124,691 0.18% of shares | low |
| May 15, 2026 | Other | TNDM Tandem Diabetes Care Inc Common Stock | $39.0K | -3K -2.28% | 130,316 0.19% of shares | low |
| Feb 17, 2026 | Other | TNDM Tandem Diabetes Care Inc Common Stock | $37.2K | -2K -1.59% | 121,108 0.17% of shares | low |
| May 15, 2026 | Other | TNDM Tandem Diabetes Care Inc Common Stock | $35.7K | -3K -2.14% | 127,378 0.18% of shares | low |
| May 15, 2026 | Grant | TNDM Tandem Diabetes Care Inc Common Stock | $14.6K | +1K +0.88% | 152,443 0.22% of shares | low |
| May 15, 2026 | Exercise | TNDM Tandem Diabetes Care Inc Common Stock | $0 | +40K +30.49% | 170,051 0.24% of shares | low |
| May 15, 2026 | Exercise | TNDM Tandem Diabetes Care Inc Common Stock | $0 | +6K +4.70% | 133,360 0.19% of shares | low |
| May 15, 2026 | Exercise | TNDM Tandem Diabetes Care Inc Common Stock | $0 | +5K +4.39% | 130,163 0.19% of shares | low |
| Feb 17, 2026 | Exercise | TNDM Tandem Diabetes Care Inc Common Stock | $0 | +6K +4.94% | 127,091 0.18% of shares | low |