CHRISTOPHER J TWOMEY
CIK 1238935 · Senior Vice President Finan · last filed 2026-05-22
"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.
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Disclosed Exposure
$490.5K
Companies
7
Total Filings
77
Lifetime Open-Market Net
-$26.01M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| 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 · Page 2 of 8
77 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2022-05-27 | TNDM | Grant (A) | — | $0 | EDGAR |
| 2022-05-19 | TNDM | Exer (M) | +2,205 | $0 | EDGAR |
| 2022-05-10 | TNDM | Mixed | +125 | -$209 | EDGAR |
| 2021-09-09 | TNDM | Mixed | −2,804 | -$360.1K | EDGAR |
| 2021-09-03 | TNDM | Sell (S) | −8,696 | -$1.00M | EDGAR |
| 2021-08-19 | Bionano Genomics, Inc. (BNGOW) Delisted | Grant (A) | — | $0 | EDGAR |
| 2021-07-30 | TNDM | Mixed | −10,500 | -$1.10M | EDGAR |
| 2021-06-14 | Bionano Genomics, Inc. (BNGOW) Delisted | Grant (A) | — | $0 | EDGAR |
| 2021-06-01 | TNDM | Exer (M) | +1,892 | $0 | EDGAR |
| 2021-05-20 | TNDM | Mixed | +55 | -$62 | EDGAR |
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.