CHRISTOPHER J TWOMEY
CIK 1238935 · Senior Vice President Finan · last filed 2026-05-22
CHRISTOPHER J TWOMEY is a Senior Vice President Finan who has filed 77 SEC Form 4 insider transactions across 7 companies since 2007. The most recent filing, for TNDM, was dated May 22, 2026. Across all open-market trades the lifetime net is −$26.0M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $490.5K 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.
$490.5K
7
77
-$26.01M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| TNDM | Director | 29,546 | $16.60 | $490.5K | -$5.14M | 28 | 2026-05-22 |
| BNGO | Director | — | $1.16 | — | $0 | 3 | 2026-05-14 |
| Bionano Genomics, Inc. (BNGOW) Delisted | Director | 64,500 | $0.00 | $232 | $0 | 10 | 2023-06-16 |
| SENOMYX INC (SNMX) Delisted | Director | — | — | — | $0 | 14 | 2018-11-02 |
| Bionano Genomics, Inc. (BNGOU) Delisted | Director | 10,000 | — | — | $61.2K | 1 | 2018-08-27 |
| CADENCE PHARMACEUTICALS INC (CADX) Delisted | Director | 25,000 | — | — | $0 | 11 | 2013-06-13 |
| BIOSITE INC (BSTE) Delisted | Senior Vice President Finan | 0 | — | — | -$20.93M | 9 | 2007-06-29 |
Recent Filings
77 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-22 | TNDM | Mixed | +8,759 | $0 | EDGAR |
| 2026-05-14 | BNGO | Grant (A) | — | $0 | EDGAR |
| 2025-06-12 | BNGO | Grant (A) | — | $0 | EDGAR |
| 2025-05-23 | TNDM | Mixed | +4,387 | $90.5K | EDGAR |
| 2024-06-20 | BNGO | Grant (A) | — | $0 | EDGAR |
| 2024-05-24 | TNDM | Mixed | +4,434 | $229.4K | EDGAR |
| 2023-06-16 | Bionano Genomics, Inc. (BNGOW) Delisted | Grant (A) | — | $0 | EDGAR |
| 2023-05-26 | TNDM | Exer (M) | +2,757 | $0 | EDGAR |
| 2022-07-18 | Bionano Genomics, Inc. (BNGOW) Delisted | Grant (A) | — | $0 | EDGAR |
| 2022-06-13 | Bionano Genomics, Inc. (BNGOW) Delisted | Grant (A) | — | $0 | EDGAR |