Dean J Mitchell
CIK 1199297 · View on SEC EDGAR ↗
First SEC filing: Sept. 12, 2003 · Latest: Sept. 12, 2003
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Insider at
Insider transactions
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 22, 2023 | PGEN | P | 25,000 | $1.41 | $35,250 | 356,836 Direct | +7.53% | Acquired | 397.2% (price as of 2026-08-19) |
| March 24, 2023 | PRAX | P | 50,000 | $0.84 | $42,000 | 75,000 Direct | +200.00% | Acquired | 2831.4% (price as of 2026-08-19) |
| Aug. 11, 2017 | PGEN | P | 5,000 | $18.33 | $91,650 | 18,103 Direct | +38.16% | Acquired | -61.8% (price as of 2026-08-19) |
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 |
|---|---|---|---|---|---|---|---|
| June 12, 2026 | TBPH | Share Option (Right to Buy) | Ordinary Shares (13,398) | $16.64 | June 11, 2036 | 13,398 | Acquired |
| June 10, 2026 | PRAX | Stock Option (Right to Buy) | Common Stock (648) | $240.66 | June 10, 2036 | 648 | Acquired |
| March 14, 2024 | PGEN | Option to Purchase Common Stock (Right to Buy) | Common Stock (101,626) | $1.43 | March 14, 2034 | 101,626 | Acquired |
| March 14, 2024 | PGEN | Restricted Stock Units | Common Stock (87,412) | — | — | 87,412 | Acquired |
| March 9, 2024 | PGEN | Restricted Stock Units | Common Stock (106,837) | — | — | 106,837 | Disposed |
| March 9, 2023 | PGEN | Option to Purchase Common Stock (Right to Buy) | Common Stock (125,489) | $1.17 | March 9, 2033 | 125,489 | Acquired |
| March 9, 2023 | PGEN | Restricted Stock Units | Common Stock (106,837) | — | — | 106,837 | Acquired |
| Feb. 22, 2023 | PGEN | Restricted Stock Units | Common Stock (61,576) | — | — | 61,576 | Disposed |
| March 25, 2022 | PGEN | Restricted Stock Units | Common Stock (16,212) | — | — | 16,212 | Disposed |
| Feb. 22, 2022 | PGEN | Option to Purchase Common Stock (Right to Buy) | Common Stock (83,189) | $2.03 | Feb. 22, 2032 | 83,189 | Acquired |
| Feb. 22, 2022 | PGEN | Restricted Stock Units | Common Stock (61,576) | — | — | 61,576 | Acquired |
| April 27, 2021 | TBPH | Share Option (Right to Buy) | Ordinary Shares (6,000) | $20.35 | April 26, 2031 | 6,000 | Acquired |
| March 25, 2021 | PGEN | Option to Purchase Common Stock (Right to Buy) | Common Stock (22,107) | $7.71 | March 25, 2031 | 22,107 | Disposed |
| March 25, 2021 | PGEN | Restricted Stock Units | Common Stock (16,212) | — | — | 16,212 | Disposed |
| March 13, 2021 | PGEN | Restricted Stock Units | Common Stock (62,189) | — | — | 62,189 | Disposed |
| March 3, 2021 | PGEN | Option to Purchase Common Stock (Right to Buy) | Common Stock (2,968) | $5.69 | March 7, 2021 | 2,968 | Disposed |
| June 19, 2020 | PGEN | Option to Purchase Common Stock (Right to Buy) | Common Stock (2,968) | $3.17 | June 30, 2020 | 2,968 | Disposed |
| April 28, 2020 | TBPH | Share Option (Right to Buy) | Ordinary Shares (6,000) | $30.14 | April 27, 2030 | 6,000 | Acquired |
| March 13, 2020 | PGEN | Option to Purchase Common Stock (Right to Buy) | Common Stock (96,324) | $2.01 | March 13, 2030 | 96,324 | Acquired |
| March 13, 2020 | PGEN | Restricted Stock Units | Common Stock (62,189) | — | — | 62,189 | Acquired |
| March 8, 2020 | PGEN | Restricted Stock Units | Common Stock (24,703) | — | — | 24,703 | Disposed |
| April 30, 2019 | TBPH | Share Option (Right to Buy) | Ordinary Shares (6,000) | $23.85 | April 29, 2029 | 6,000 | Acquired |
| March 23, 2019 | PGEN | Restricted Stock Units | Common Stock (7,911) | — | — | 7,911 | Disposed |
| March 12, 2019 | PGEN | Option to Purchase Common Stock (Right to Buy) | Common Stock (8,906) | $3.17 | March 17, 2019 | 8,906 | Disposed |
| March 8, 2019 | PGEN | Option to Purchase Common Stock (Right to Buy) | Common Stock (42,450) | $5.06 | March 8, 2029 | 42,450 | Acquired |
| March 8, 2019 | PGEN | Restricted Stock Units | Common Stock (24,703) | — | — | 24,703 | Acquired |
| May 1, 2018 | TBPH | Share Option (Right to Buy) | Ordinary Shares (6,000) | $24.43 | April 30, 2028 | 6,000 | Acquired |
| March 23, 2018 | PGEN | Option to Purchase Common Stock (Right to Buy) | Common Stock (14,246) | $15.80 | March 23, 2028 | 14,246 | Acquired |
| March 23, 2018 | PGEN | Restricted Stock Units | Common Stock (7,911) | — | — | 7,911 | Acquired |
| March 16, 2017 | PGEN | Option to Purchase Common Stock (Right to Buy) | Common Stock (15,000) | $21.38 | March 16, 2027 | 15,000 | Acquired |
| March 10, 2016 | PGEN | Option to Purchase Common Stock (Right to Buy) | Common Stock (15,000) | $34.99 | March 10, 2026 | 15,000 | Acquired |
| March 12, 2015 | PGEN | Option to Purchase Common Stock (Right to Buy) | Common Stock (15,000) | $47.48 | March 12, 2025 | 15,000 | Acquired |
| June 3, 2014 | TBPH | Stock Option (Right to Buy) | Common Stock (12,000) | $23.51 | June 2, 2024 | 12,000 | Acquired |
| June 3, 2014 | TBPH | Stock Option (Right to Buy) | Common Stock (12,000) | $23.51 | June 2, 2024 | 12,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 8 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Oct. 15, 2020 | PRAX | Stock Option (Right to Buy)→ Common Stock (65,420) | 65,420 | Direct |
| Aug. 7, 2013 | PGEN | Common Stock | 3,851 | Direct |
| Aug. 7, 2013 | PGEN | Option to Purchase Common Stock→ Common Stock (8,571) | 8,571 | Direct |
| Aug. 7, 2013 | PGEN | Option to Purchase Common Stock→ Common Stock (2,857) | 2,857 | Direct |
| Aug. 7, 2013 | PGEN | Option to Purchase Common Stock→ Common Stock (2,857) | 2,857 | Direct |
| Aug. 7, 2013 | PGEN | Option to Purchase Common Stock→ Common Stock (8,571) | 8,571 | Direct |
| Aug. 7, 2013 | PGEN | Option to Purchase Common Stock→ Common Stock (2,857) | 2,857 | Direct |
| Aug. 7, 2013 | PGEN | Option to Purchase Common Stock→ Common Stock (2,857) | 2,857 | Direct |