John F Sheridan
CIK 1365369 · PRESIDENT & CEO · last filed 2026-06-02
John F Sheridan is a PRESIDENT & CEO who has filed 96 SEC Form 4 insider transactions across 3 companies since 2007. The most recent filing, for TNDM, was dated Jun 2, 2026. Across all open-market trades the lifetime net is −$16.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $2.2M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$2.16M
3
96
-$16.60M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| TNDM | PRESIDENT & CEO | 130,163 | $16.60 | $2.16M | -$14.92M | 82 | 2026-06-02 |
| Acutus Medical, Inc. (AFIB) Delisted | Director | 24,347 | $0.09 | $2.2K | $0 | 3 | 2023-06-15 |
| Volcano Corp (VOLC) Delisted | Exec VP of R&D & Operations | 9,947 | — | — | -$1.68M | 11 | 2010-02-05 |
Recent Filings
96 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-02 | TNDM | Grant (A) | — | $0 | EDGAR |
| 2026-05-19 | TNDM | Mixed | +27,752 | -$303.0K | EDGAR |
| 2026-02-19 | TNDM | Mixed | +7,091 | -$82.7K | EDGAR |
| 2025-11-19 | TNDM | Mixed | +5,637 | -$108.3K | EDGAR |
| 2025-08-19 | TNDM | Mixed | +5,636 | -$62.9K | EDGAR |
| 2025-08-11 | TNDM | Buy (P) | +10,000 | $102.3K | EDGAR |
| 2025-06-05 | TNDM | Grant (A) | — | $0 | EDGAR |
| 2025-05-19 | TNDM | Mixed | +17,318 | -$228.4K | EDGAR |
| 2025-02-27 | TNDM | Mixed | +19,352 | -$447.7K | EDGAR |
| 2025-02-20 | TNDM | Mixed | +5,320 | -$106.5K | EDGAR |