Companies / Tandem Diabetes Care Inc / Activity
Activity — Tandem Diabetes Care Inc
67 moves.
Top impactInsider · CEO movesInsider · biggest buysInsider · biggest sellsInstitution · biggest movesInstitution · new positions
| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| May 15, 2026 | Sheridan John F CEO | Other | Common Stock | $242.9K | -19K -11.14% | 151,107 0.22% of shares | low |
| Mar 16, 2026 | Novara Mark David Executive | Other | Common Stock | $119.6K | -6K -12.77% | 37,843 0.05% of shares | low |
| Feb 17, 2026 | Sheridan John F CEO | Other | Common Stock | $45.5K | -2K -1.89% | 124,691 0.18% of shares | low |
| Jan 15, 2026 | Kyrillos Jean-Claude Executive | Other | Common Stock | $44.6K | -2K -8.09% | 24,062 0.03% of shares | low |
| May 15, 2026 | Sheridan John F CEO | Other | Common Stock | $39.0K | -3K -2.28% | 130,316 0.19% of shares | low |
| Feb 17, 2026 | Sheridan John F CEO | Other | Common Stock | $37.2K | -2K -1.59% | 121,108 0.17% of shares | low |
| May 15, 2026 | Sheridan John F CEO | Other | Common Stock | $35.7K | -3K -2.14% | 127,378 0.18% of shares | low |
| Feb 17, 2026 | Gasser Elizabeth Anne Executive | Other | Common Stock | $16.8K | -887 -59.02% | 616 <0.01% of shares | low |
| Feb 17, 2026 | Carpenter Rick Executive | Other | Common Stock | $15.3K | -808 -3.15% | 24,881 0.04% of shares | low |
| May 15, 2026 | Sheridan John F CEO | Grant | Common Stock | $14.6K | +1K +0.88% | 152,443 0.22% of shares | low |
| Feb 17, 2026 | Gasser Elizabeth Anne Executive | Other | Common Stock | $12.3K | -647 -37.77% | 1,066 <0.01% of shares | low |
| Feb 17, 2026 | Vosseller Leigh Executive | Other | Common Stock | $11.7K | -619 -1.58% | 38,532 0.06% of shares | low |
| Feb 17, 2026 | Vosseller Leigh Executive | Other | Common Stock | $11.7K | -616 -1.54% | 39,411 0.06% of shares | low |
| Feb 17, 2026 | Hansen Shannon Marie Executive | Other | Common Stock | $11.2K | -592 -2.55% | 22,631 0.03% of shares | low |
| Feb 17, 2026 | Morrison Susan Executive | Other | Common Stock | $9.7K | -510 -1.20% | 41,910 0.06% of shares | low |
| Feb 17, 2026 | Carpenter Rick Executive | Other | Common Stock | $9.6K | -504 -1.96% | 25,274 0.04% of shares | low |
| Feb 17, 2026 | Hansen Shannon Marie Executive | Other | Common Stock | $8.6K | -452 -1.90% | 23,276 0.03% of shares | low |
| Feb 17, 2026 | Morrison Susan Executive | Other | Common Stock | $7.0K | -372 -0.86% | 42,635 0.06% of shares | low |
| Mar 17, 2026 | Novara Mark David Executive | Sell | Common Stock | $4.3K | -187 -0.49% | 37,656 0.05% of shares | low |
| Feb 17, 2026 | Hansen Shannon Marie Executive | Other | Common Stock | $4.2K | -219 -1.00% | 21,786 0.03% of shares | low |
| Feb 17, 2026 | Novara Mark David Executive | Other | Common Stock | $1.2K | -62 -0.17% | 35,971 0.05% of shares | low |
| Mar 5, 2026 | Novara Mark David Executive | Sell | Common Stock | $46 | -2 -0.01% | 35,969 0.05% of shares | low |
| May 15, 2026 | Sheridan John F CEO | Exercise | Common Stock | $0 | +40K +30.49% | 170,051 0.24% of shares | low |
| May 15, 2026 | Sheridan John F CEO | Exercise | Common Stock | $0 | +6K +4.70% | 133,360 0.19% of shares | low |
| May 15, 2026 | Sheridan John F CEO | Exercise | Common Stock | $0 | +5K +4.39% | 130,163 0.19% of shares | low |
| May 21, 2026 | Twomey Christopher J Director | Exercise | Common Stock | $0 | +9K +55.88% | 24,434 0.04% of shares | low |
| May 21, 2026 | Robertson Rebecca B Director | Exercise | Common Stock | $0 | +9K +63.55% | 22,542 0.03% of shares | low |
| Jan 15, 2026 | Kyrillos Jean-Claude Executive | Exercise | Common Stock | $0 | +4K +16.13% | 26,180 0.04% of shares | low |
| Feb 17, 2026 | Vosseller Leigh Executive | Exercise | Common Stock | $0 | +1K +3.88% | 40,027 0.06% of shares | low |
| Feb 17, 2026 | Vosseller Leigh Executive | Exercise | Common Stock | $0 | +2K +3.99% | 39,151 0.06% of shares | low |
| Feb 17, 2026 | Morrison Susan Executive | Exercise | Common Stock | $0 | +1K +2.62% | 43,007 0.06% of shares | low |
| Feb 17, 2026 | Morrison Susan Executive | Exercise | Common Stock | $0 | +2K +3.67% | 42,420 0.06% of shares | low |
| Feb 17, 2026 | Carpenter Rick Executive | Exercise | Common Stock | $0 | +897 +3.61% | 25,778 0.04% of shares | low |
| Feb 17, 2026 | Carpenter Rick Executive | Exercise | Common Stock | $0 | +1K +5.93% | 25,689 0.04% of shares | low |
| Mar 16, 2026 | Novara Mark David Executive | Exercise | Common Stock | $0 | +7K +20.61% | 43,383 0.06% of shares | low |
| Feb 17, 2026 | Gasser Elizabeth Anne Executive | Exercise | Common Stock | $0 | +1K +178.08% | 1,713 <0.01% of shares | low |
| Feb 17, 2026 | Gasser Elizabeth Anne Executive | Exercise | Common Stock | $0 | +2K | 1,503 <0.01% of shares | low |
| Feb 17, 2026 | Novara Mark David Executive | Exercise | Common Stock | $0 | +77 +0.21% | 36,033 0.05% of shares | low |
| Feb 17, 2026 | Sheridan John F CEO | Exercise | Common Stock | $0 | +6K +4.94% | 127,091 0.18% of shares | low |
| Feb 17, 2026 | Sheridan John F CEO | Exercise | Common Stock | $0 | +5K +4.65% | 123,071 0.18% of shares | low |
| Feb 17, 2026 | Hansen Shannon Marie Executive | Exercise | Common Stock | $0 | +1K +4.85% | 23,728 0.03% of shares | low |
| Feb 17, 2026 | Hansen Shannon Marie Executive | Exercise | Common Stock | $0 | +1K +6.60% | 23,223 0.03% of shares | low |
| Feb 17, 2026 | Hansen Shannon Marie Executive | Exercise | Common Stock | $0 | +531 +2.47% | 22,005 0.03% of shares | low |
| May 29, 2026 | Sheridan John F CEO | Grant | Restricted Stock Unit | — | +191K | 191,103 0.27% of shares | low |
| May 15, 2026 | Sheridan John F CEO | Exercise | Restricted Stock Unit | — | -40K -33.33% | 79,471 0.11% of shares | low |
| May 15, 2026 | Sheridan John F CEO | Exercise | Restricted Stock Unit | — | -6K -20.00% | 23,929 0.03% of shares | low |
| May 15, 2026 | Sheridan John F CEO | Exercise | Restricted Stock Unit | — | -5K -100.00% | 0 0.00% of shares | low |
| May 21, 2026 | Twomey Christopher J Director | Exercise | Restricted Stock Unit | — | -9K -100.00% | 0 0.00% of shares | low |
| May 20, 2026 | Twomey Christopher J Director | Grant | Restricted Stock Unit | — | +10K | 10,220 0.01% of shares | low |
| May 21, 2026 | Robertson Rebecca B Director | Exercise | Restricted Stock Unit | — | -9K -100.00% | 0 0.00% of shares | low |