Insider · CIK 0001238935
Christopher J Twomey
Files at BNGO (Bionano Genomics, Inc.), TNDM (TANDEM DIABETES CARE INC). First filing -, latest -.
In brief
Christopher J Twomey files SEC Form 4 as director at BNGO (Bionano Genomics, Inc.), and also at TNDM (TANDEM DIABETES CARE INC). No open-market trade is on file; the transactions below are grants, exercises and other rows that carry no view on the price.
A track record needs three past buys with six months of prices behind them; Christopher J Twomey has 0, so none is measured yet.
Signals
This insider’s open-market buys and sells, scored.
Transactions
Every row this insider has filed, 8 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| May 21, 2026 | TNDM TANDEM DIABETES CARE INC | MOption exercise Common Stock | +8,759 | $0.00 | $0 | 24,434 | May 22, 2026 |
| May 20, 2026 | TNDM TANDEM DIABETES CARE INC | AGrant or award Restricted Stock Unitderivative | +10,220 | $0.00 | $0 | 10,220 | May 22, 2026 |
| May 21, 2026 | TNDM TANDEM DIABETES CARE INC | MOption exercise Restricted Stock Unitderivative | -8,759 | $0.00 | $0 | 0 | May 22, 2026 |
| May 14, 2026 | BNGO Bionano Genomics, Inc. | AGrant or award Stock Option (Right to Buy)derivative | +9,149 | $0.00 | $0 | 9,149 | May 14, 2026 |
| Jun 11, 2025 | BNGO Bionano Genomics, Inc. | AGrant or award Stock Option (Right to Buy)derivative | +2,775 | $0.00 | $0 | 2,775 | Jun 12, 2025 |
| May 22, 2025 | TNDM TANDEM DIABETES CARE INC | MOption exercise Common Stock | +4,387 | $20.64 | $91k | 15,675 | May 23, 2025 |
| May 22, 2025 | TNDM TANDEM DIABETES CARE INC | MOption exercise Restricted Stock Unitderivative | -4,387 | $0.00 | $0 | 0 | May 23, 2025 |
| May 21, 2025 | TNDM TANDEM DIABETES CARE INC | AGrant or award Restricted Stock Unitderivative | +8,759 | $0.00 | $0 | 8,759 | May 23, 2025 |
Questions about Christopher J Twomey
Answered from the filings on this page, as of the latest one.
Is Christopher J Twomey buying or selling?
Christopher J Twomey has no open-market buy or sell on SEC Form 4; the filings on record are grants, exercises and other transactions.
How did Christopher J Twomey's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Christopher J Twomey has 0.
Where does Christopher J Twomey file Form 4?
Christopher J Twomey has filed Form 4 at BNGO (Bionano Genomics, Inc.); TNDM (TANDEM DIABETES CARE INC). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.