Christopher J Twomey
CIK 1238935 · View on SEC EDGAR ↗
Insider
First SEC filing: Nov. 13, 2013 · Latest: Nov. 13, 2013
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 30 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
30 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 23, 2018 | BNGO | P | 10,000 | — | — | 10,000 Direct | — | Acquired | (price as of 2026-08-20) |
| Aug. 23, 2018 | BNGO | P | 10,000 | $6.12 | $61,200 | 10,000 Direct | — | Acquired | -100.0% (price as of 2026-08-20) |
| Feb. 9, 2018 | TNDM | P | 50,000 | $2.00 | $100,000 | 52,550 Indirect | +1960.78% | Acquired | 1068.0% (price as of 2026-08-20) |
| Feb. 9, 2018 | TNDM | P | 25,000 | $2.00 | $50,000 | 26,758 Indirect | +1422.07% | Acquired | 1068.0% (price as of 2026-08-20) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| May 14, 2026 | BNGO | Stock Option (Right to Buy) | Common Stock (9,149) | $1.19 | May 13, 2036 | 9,149 | Acquired |
| June 11, 2025 | BNGO | Stock Option (Right to Buy) | Common Stock (2,775) | $3.67 | June 10, 2035 | 2,775 | Acquired |
| June 18, 2024 | BNGO | Stock Option (Right to Buy) | Common Stock (30,000) | $0.78 | June 18, 2034 | 30,000 | Acquired |
| June 14, 2023 | BNGO | Stock Option (Right to Buy) | Common Stock (250,000) | $0.75 | June 14, 2033 | 250,000 | Acquired |
| June 9, 2022 | BNGO | Stock Option (right to buy) | Common Stock (164,422) | $1.62 | June 9, 2032 | 164,422 | Acquired |
| Aug. 17, 2021 | BNGO | Stock Option (right to buy) | Common Stock (40,751) | $5.34 | Aug. 17, 2031 | 40,751 | Acquired |
| June 10, 2021 | BNGO | Stock Option (right to buy) | Common Stock (7,528) | $7.64 | June 10, 2031 | 7,528 | Acquired |
| June 30, 2020 | BNGO | Stock Option (Right to Buy) | Common Stock (44,470) | $0.51 | June 30, 2030 | 44,470 | Acquired |
| June 30, 2020 | BNGO | Stock Option (right to buy) | Common Stock (44,470) | $0.51 | June 30, 2029 | 44,470 | Acquired |
| April 6, 2020 | BNGO | Common Stock Warrants (right to buy) | Common Stock (45,000) | $0.33 | April 6, 2025 | 45,000 | Acquired |
| Oct. 23, 2019 | BNGO | Common Stock Warrants (right to buy) | Common Stock (9,500) | $0.86 | Oct. 23, 2024 | 9,500 | Acquired |
| June 18, 2019 | TNDM | Stock Option [F1] | Common Stock (3,732) | $64.66 | — | 3,732 | Acquired |
| June 6, 2019 | BNGO | Stock Option (right to buy) | Common Stock (21,911) | $2.78 | June 6, 2029 | 21,911 | Acquired |
| Nov. 15, 2018 | TNDM | Stock Option [F1] | Common Stock (25,000) | $33.12 | — | 25,000 | Acquired |
| Oct. 1, 2018 | BNGO | Stock Option (Right to Buy) | Common Stock (10,516) | $7.77 | Sept. 30, 2028 | 10,516 | Acquired |
| Aug. 23, 2018 | BNGO | Common Stock Warrants (right to buy) | Common Stock (10,000) | $6.12 | Aug. 21, 2023 | 10,000 | Acquired |
| Dec. 1, 2017 | TNDM | Stock Option [F1] | Common Stock (5,300) | $2.59 | — | 5,300 | Acquired |
| Nov. 15, 2017 | TNDM | Stock Options [F1] | Common Stock (1,700) | $2.54 | — | 1,700 | Acquired |
| Nov. 15, 2016 | TNDM | Stock Options [F1] | Common Stock (17,000) | $1.90 | — | 17,000 | Acquired |
| Nov. 16, 2015 | TNDM | Stock Options [F1] | Common Stock (17,000) | $10.13 | — | 17,000 | Acquired |
| Nov. 17, 2014 | TNDM | Stock Options [F1] | Common Stock (17,000) | $14.53 | — | 17,000 | Acquired |
| Nov. 19, 2013 | TNDM | Series D Preferred Stock | Common Stock | — | — | 17,571 | Disposed |
| Nov. 19, 2013 | TNDM | Series D Preferred Stock | Common Stock | — | — | 24,408 | Disposed |
| Nov. 19, 2013 | TNDM | Series C Preferred Stock | Common Stock | — | — | 11,873 | Disposed |
| Nov. 19, 2013 | TNDM | Series C Preferred Stock | Common Stock | — | — | 7,915 | Disposed |
| Nov. 19, 2013 | TNDM | Series B Preferred Stock | Common Stock | — | — | 10,402 | Disposed |
| Nov. 13, 2013 | TNDM | Stock Option [F1] | Common Stock (21,000) | $15.00 | — | 21,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 11 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Nov. 13, 2013 | TNDM | Series B Preferred Stock→ Common Stock (6,208) | 6,208 | Indirect |
| Nov. 13, 2013 | TNDM | Series C Preferred Stock→ Common Stock (4,724) | 4,724 | Indirect |
| Nov. 13, 2013 | TNDM | Series C Preferred Stock→ Common Stock (7,086) | 7,086 | Indirect |
| Nov. 13, 2013 | TNDM | Series D Preferred Stock→ Common Stock (14,566) | 14,566 | Indirect |
| Nov. 13, 2013 | TNDM | Series D Preferred Stock→ Common Stock (10,486) | 10,486 | Indirect |
| Nov. 13, 2013 | TNDM | Preferred Stock Warrant→ Series D Preferred Stock [F6] | — | Indirect |
| Nov. 13, 2013 | TNDM | Preferred Stock Warrant→ Series D Preferred Stock [F7] | — | Indirect |
| Nov. 13, 2013 | TNDM | Preferred Stock Warrant→ Series D Preferred Stock [F8] | — | Indirect |
| Nov. 13, 2013 | TNDM | Preferred Stock Warrant→ Series D Preferred Stock [F9] | — | Indirect |
| Nov. 13, 2013 | TNDM | Preferred Stock Warrant→ Series D Preferred Stock [F10] | — | Indirect |
| Nov. 13, 2013 | TNDM | Stock Option [F11]→ Common Stock (20,888) | 20,888 | Direct |