Eric Dobmeier
Insider
First SEC filing: June 11, 2026 · Latest: June 11, 2026
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
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 |
|---|---|---|---|---|---|---|---|---|---|
| June 17, 2026 | GPCR | A | 39,453 | · | · | 39,453 Direct | · | Acquired | (price as of 2026-10-02) |
| June 11, 2026 | JANX | A | 15,500 | · | · | 15,500 Direct | · | Acquired | (price as of 2026-10-02) |
| June 11, 2026 | JANX | A | 5,500 | · | · | 15,481 Direct | +55.10% | Acquired | (price as of 2026-10-02) |
| June 9, 2026 | JBIO | A | 34,843 | · | · | 34,843 Direct | · | Acquired | (price as of 2026-10-02) |
| June 23, 2025 | GPCR | A | 51,804 | · | · | 51,804 Direct | · | Acquired | (price as of 2026-10-02) |
| June 11, 2025 | JANX | A | 3,750 | · | · | 9,981 Direct | +60.18% | Acquired | (price as of 2026-10-02) |
| June 11, 2025 | JANX | A | 11,667 | · | · | 11,667 Direct | · | Acquired | (price as of 2026-10-02) |
| April 29, 2025 | JBIO | A | 23,017 | · | · | 23,017 Direct | · | Acquired | (price as of 2026-10-02) |
| July 19, 2024 | JANX | A | 1,231 | · | · | 6,231 Direct | +24.62% | Acquired | (price as of 2026-10-02) |
| July 19, 2024 | JANX | A | 4,111 | · | · | 4,111 Direct | · | Acquired | (price as of 2026-10-02) |
| July 19, 2024 | JANX | A | 5,000 | · | · | 5,000 Direct | · | Acquired | (price as of 2026-10-02) |
| July 19, 2024 | JANX | A | 2,500 | · | · | 7,500 Direct | +50.00% | Acquired | (price as of 2026-10-02) |
| July 19, 2024 | JANX | A | 16,700 | · | · | 16,700 Direct | · | Acquired | (price as of 2026-10-02) |
| July 19, 2024 | JANX | A | 8,350 | · | · | 8,350 Direct | · | Acquired | (price as of 2026-10-02) |
| June 25, 2024 | GPCR | A | 37,500 | · | · | 37,500 Direct | · | Acquired | (price as of 2026-10-02) |
| Nov. 10, 2023 | ATRA | P | 446,825 | $0.23 | $102,770 | 563,325 Direct | +383.54% | Acquired | 64.9% (price as of 2026-10-02) |
| May 31, 2023 | ATRA | A | 79,500 | · | · | 79,500 Direct | · | Acquired | (price as of 2026-10-02) |
| May 31, 2023 | ATRA | A | 57,000 | · | · | 116,500 Direct | +95.80% | Acquired | (price as of 2026-10-02) |
| June 23, 2022 | ATRA | A | 31,500 | · | · | 31,500 Direct | · | Acquired | (price as of 2026-10-02) |
| June 23, 2022 | ATRA | A | 20,500 | · | · | 59,500 Direct | +52.56% | Acquired | (price as of 2026-10-02) |
| June 8, 2021 | ATRA | A | 17,500 | · | · | 17,500 Direct | · | Acquired | (price as of 2026-10-02) |
| June 8, 2021 | ATRA | A | 11,000 | · | · | 39,000 Direct | +39.29% | Acquired | (price as of 2026-10-02) |
| Feb. 14, 2021 | ADPT | A | 1,504 | · | · | 1,504 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 14, 2021 | ADPT | A | 3,759 | · | · | 3,759 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 4, 2021 | ADPT | M 10b5-1 | 10,000 | · | · | 35,000 Direct | -22.22% | Disposed | (price as of 2026-10-02) |
| Jan. 4, 2021 | ADPT | S 10b5-1 | 400 | $59.46 | $23,784 | 0 Direct | -100.00% | Disposed | -52.3% (price as of 2026-10-02) |
| Jan. 4, 2021 | ADPT | S 10b5-1 | 592 | $58.67 | $34,733 | 400 Direct | -59.68% | Disposed | -51.7% (price as of 2026-10-02) |
| Jan. 4, 2021 | ADPT | S 10b5-1 | 5,725 | $57.76 | $330,676 | 992 Direct | -85.23% | Disposed | -50.9% (price as of 2026-10-02) |
| Jan. 4, 2021 | ADPT | S 10b5-1 | 3,283 | $56.10 | $184,176 | 6,717 Direct | -32.83% | Disposed | -49.5% (price as of 2026-10-02) |
| Jan. 4, 2021 | ADPT | M 10b5-1 | 10,000 | $6.32 | $63,200 | 10,000 Direct | · | Acquired | 348.6% (price as of 2026-10-02) |
| Oct. 1, 2020 | ADPT | M 10b5-1 | 10,000 | · | · | 45,000 Direct | -18.18% | Disposed | (price as of 2026-10-02) |
| Oct. 1, 2020 | ADPT | S 10b5-1 | 776 | $49.21 | $38,187 | 0 Direct | -100.00% | Disposed | -42.4% (price as of 2026-10-02) |
| Oct. 1, 2020 | ADPT | S 10b5-1 | 9,224 | $48.47 | $447,087 | 776 Direct | -92.24% | Disposed | -41.5% (price as of 2026-10-02) |
| Oct. 1, 2020 | ADPT | M 10b5-1 | 10,000 | $6.32 | $63,200 | 10,000 Direct | · | Acquired | 348.6% (price as of 2026-10-02) |
| July 6, 2020 | ADPT | M 10b5-1 | 10,000 | · | · | 55,000 Direct | -15.38% | Disposed | (price as of 2026-10-02) |
| July 6, 2020 | ADPT | S 10b5-1 | 400 | $47.98 | $19,192 | 0 Direct | -100.00% | Disposed | -40.9% (price as of 2026-10-02) |
| July 6, 2020 | ADPT | S 10b5-1 | 9,600 | $47.34 | $454,464 | 400 Direct | -96.00% | Disposed | -40.1% (price as of 2026-10-02) |
| July 6, 2020 | ADPT | M 10b5-1 | 10,000 | $6.32 | $63,200 | 10,000 Direct | · | Acquired | 348.6% (price as of 2026-10-02) |
| June 16, 2020 | ATRA | A | 24,500 | · | · | 24,500 Direct | · | Acquired | (price as of 2026-10-02) |
| June 16, 2020 | ATRA | A | 8,000 | · | · | 28,000 Direct | +40.00% | Acquired | (price as of 2026-10-02) |
| June 3, 2020 | ADPT | S | 5,000 | $39.79 | $198,950 | 0 Direct | -100.00% | Disposed | -28.8% (price as of 2026-10-02) |
| June 3, 2020 | ADPT | M | 5,000 | · | · | 65,000 Direct | -7.14% | Disposed | (price as of 2026-10-02) |
| June 3, 2020 | ADPT | M | 5,000 | $6.32 | $31,600 | 5,000 Direct | · | Acquired | 348.6% (price as of 2026-10-02) |
| May 19, 2020 | ADPT | S 10b5-1 | 5,000 | $40.00 | $200,000 | 0 Direct | -100.00% | Disposed | -29.1% (price as of 2026-10-02) |
| May 19, 2020 | ADPT | M 10b5-1 | 5,000 | · | · | 70,000 Direct | -6.67% | Disposed | (price as of 2026-10-02) |
| May 19, 2020 | ADPT | M 10b5-1 | 5,000 | $6.32 | $31,600 | 5,000 Direct | · | Acquired | 348.6% (price as of 2026-10-02) |
| May 7, 2020 | ADPT | M 10b5-1 | 5,000 | · | · | 75,000 Direct | -6.25% | Disposed | (price as of 2026-10-02) |
| May 7, 2020 | ADPT | S 10b5-1 | 5,000 | $35.00 | $175,000 | 0 Direct | -100.00% | Disposed | -19.0% (price as of 2026-10-02) |
| May 7, 2020 | ADPT | M 10b5-1 | 5,000 | $6.32 | $31,600 | 5,000 Direct | · | Acquired | 348.6% (price as of 2026-10-02) |
| Feb. 13, 2020 | ADPT | A | 8,888 | · | · | 8,888 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2019 | ADPT | M 10b5-1 | 5,000 | · | · | 80,000 Direct | -5.88% | Disposed | (price as of 2026-10-02) |
| Dec. 31, 2019 | ADPT | S 10b5-1 | 5,000 | $30.00 | $150,000 | 0 Direct | -100.00% | Disposed | -5.5% (price as of 2026-10-02) |
| Dec. 31, 2019 | ADPT | M 10b5-1 | 5,000 | $6.32 | $31,600 | 5,000 Direct | · | Acquired | 348.6% (price as of 2026-10-02) |
| Dec. 31, 2019 | ADPT | M 10b5-1 | 5,000 | · | · | 80,000 Direct | -5.88% | Disposed | (price as of 2026-10-02) |
| Dec. 31, 2019 | ADPT | D 10b5-1 | 5,000 | $30.00 | $150,000 | 0 Direct | -100.00% | Disposed | -5.5% (price as of 2026-10-02) |
| Dec. 31, 2019 | ADPT | M 10b5-1 | 5,000 | $6.32 | $31,600 | 5,000 Direct | · | Acquired | 348.6% (price as of 2026-10-02) |
| Dec. 26, 2019 | ADPT | M 10b5-1 | 15,000 | · | · | 85,000 Direct | -15.00% | Disposed | (price as of 2026-10-02) |
| Dec. 26, 2019 | ADPT | S 10b5-1 | 2 | $29.91 | $60 | 0 Direct | -100.00% | Disposed | -5.2% (price as of 2026-10-02) |
| Dec. 26, 2019 | ADPT | S 10b5-1 | 14,998 | $29.29 | $439,291 | 2 Direct | -99.99% | Disposed | -3.2% (price as of 2026-10-02) |
| Dec. 26, 2019 | ADPT | M 10b5-1 | 15,000 | $6.32 | $94,800 | 15,000 Direct | · | Acquired | 348.6% (price as of 2026-10-02) |
| Dec. 26, 2019 | ADPT | M 10b5-1 | 15,000 | · | · | 85,000 Direct | -15.00% | Disposed | (price as of 2026-10-02) |
| Dec. 26, 2019 | ADPT | D 10b5-1 | 2 | $29.91 | $60 | 0 Direct | -100.00% | Disposed | -5.2% (price as of 2026-10-02) |
| Dec. 26, 2019 | ADPT | D 10b5-1 | 14,998 | $29.29 | $439,291 | 2 Direct | -99.99% | Disposed | -3.2% (price as of 2026-10-02) |
| Dec. 26, 2019 | ADPT | M 10b5-1 | 15,000 | $6.32 | $94,800 | 15,000 Direct | · | Acquired | 348.6% (price as of 2026-10-02) |
| June 27, 2019 | ATRA | A | 13,000 | · | · | 13,000 Direct | · | Acquired | (price as of 2026-10-02) |
| June 27, 2019 | ATRA | A | 4,000 | · | · | 20,000 Direct | +25.00% | Acquired | (price as of 2026-10-02) |
| June 27, 2019 | ATRA | P | 2,000 | $19.50 | $39,000 | 16,000 Direct | +14.29% | Acquired | -98.1% (price as of 2026-10-02) |
| June 14, 2018 | ATRA | A | 5,000 | · | · | 5,000 Direct | · | Acquired | (price as of 2026-10-02) |
| June 14, 2018 | ATRA | A | 1,500 | · | · | 14,000 Direct | +12.00% | Acquired | (price as of 2026-10-02) |
| June 8, 2017 | ATRA | A | 5,000 | · | · | 12,500 Direct | +66.67% | Acquired | (price as of 2026-10-02) |
| June 8, 2017 | ATRA | A | 21,500 | · | · | 21,500 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 3, 2017 | ATRA | A | 5,500 | · | · | 5,500 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 3, 2017 | ATRA | A | 2,000 | · | · | 7,500 Direct | +36.36% | Acquired | (price as of 2026-10-02) |
| March 17, 2016 | ATRA | P | 3,000 | $13.86 | $41,580 | 5,500 Direct | +120.00% | Acquired | -97.3% (price as of 2026-10-02) |
| Jan. 4, 2016 | ATRA | A | 10,500 | · | · | 10,500 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 16, 2015 | ATRA | P | 2,500 | $22.00 | $55,000 | 2,500 Direct | · | Acquired | -98.3% (price as of 2026-10-02) |
| March 26, 2015 | ATRA | A | 25,000 | · | · | 25,000 Direct | · | Acquired | (price as of 2026-10-02) |
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 17, 2026 | GPCR | Share Option (right to buy) | Ordinary Shares | · | June 16, 2036 | 39,453 | Acquired |
| June 11, 2026 | JANX | Stock Option (right to buy) | Common Stock | $13.66 | June 10, 2036 | 15,500 | Acquired |
| June 9, 2026 | JBIO | Stock Option (Right to Buy) | Common Stock | $15.22 | June 8, 2036 | 34,843 | Acquired |
| June 23, 2025 | GPCR | Share Option (right to buy) | Ordinary Shares | · | June 22, 2035 | 51,804 | Acquired |
| June 11, 2025 | JANX | Stock Option (right to buy) | Common Stock | $25.46 | June 10, 2035 | 11,667 | Acquired |
| April 29, 2025 | JBIO | Stock Option (Right to Buy) | Common Stock | $10.14 | April 29, 2035 | 23,017 | Acquired |
| July 19, 2024 | JANX | Stock Option (Right to Buy) | Common Stock | $44.68 | July 18, 2034 | 4,111 | Acquired |
| July 19, 2024 | JANX | Stock Option (Right to Buy) | Common Stock | $44.68 | July 18, 2034 | 16,700 | Acquired |
| July 19, 2024 | JANX | Stock Option (Right to Buy) | Common Stock | $44.68 | July 18, 2034 | 8,350 | Acquired |
| June 25, 2024 | GPCR | Share Option (right to buy) | Ordinary Shares | · | June 24, 2034 | 37,500 | Acquired |
| May 31, 2023 | ATRA | Non-Qualified Stock Option (Right to Buy) | Common Stock | $1.53 | May 30, 2033 | 79,500 | Acquired |
| June 23, 2022 | ATRA | Non-Qualified Stock Option (Right to Buy) | Common Stock | $7.35 | June 22, 2032 | 31,500 | Acquired |
| June 8, 2021 | ATRA | Non-Qualified Stock Option (Right to Buy) | Common Stock | $13.80 | June 7, 2031 | 17,500 | Acquired |
| Feb. 14, 2021 | ADPT | Stock Option (Right to Buy) | Common Stock | $66.50 | Feb. 14, 2031 | 3,759 | Acquired |
| Jan. 4, 2021 | ADPT | Stock Option (Right to Buy) | Common Stock | $6.32 | Oct. 18, 2026 | 10,000 | Disposed |
| Oct. 1, 2020 | ADPT | Stock Option (Right to Buy) | Common Stock | $6.32 | Oct. 18, 2026 | 10,000 | Disposed |
| July 6, 2020 | ADPT | Stock Option (Right to Buy) | Common Stock | $6.32 | Oct. 18, 2026 | 10,000 | Disposed |
| June 16, 2020 | ATRA | Non-Qualified Stock Option (Right to Buy) | Common Stock | $10.54 | June 15, 2030 | 24,500 | Acquired |
| June 3, 2020 | ADPT | Stock Option (Right to Buy) | Common Stock | $6.32 | Oct. 18, 2026 | 5,000 | Disposed |
| May 19, 2020 | ADPT | Stock Option (Right to Buy) | Common Stock | $6.32 | Oct. 18, 2026 | 5,000 | Disposed |
| May 7, 2020 | ADPT | Stock Option (Right to Buy) | Common Stock | $6.32 | Oct. 18, 2026 | 5,000 | Disposed |
| Feb. 13, 2020 | ADPT | Stock Option (Right to Buy) | Common Stock | $31.71 | Feb. 13, 2030 | 8,888 | Acquired |
| Dec. 31, 2019 | ADPT | Stock Option (Right to Buy) | Common Stock | $6.32 | Oct. 18, 2026 | 5,000 | Disposed |
| Dec. 31, 2019 | ADPT | Stock Option (Right to Buy) | Common Stock | $6.32 | Oct. 18, 2026 | 5,000 | Disposed |
| Dec. 26, 2019 | ADPT | Stock Option (Right to Buy) | Common Stock | $6.32 | Oct. 18, 2026 | 15,000 | Disposed |
| Dec. 26, 2019 | ADPT | Stock Option (Right to Buy) | Common Stock | $6.32 | Oct. 18, 2026 | 15,000 | Disposed |
| June 27, 2019 | ATRA | Non-Qualified Stock Option (Right to Buy) | Common Stock | $20.25 | June 26, 2029 | 13,000 | Acquired |
| June 14, 2018 | ATRA | Non-Qualified Stock Option (Right to Buy) | Common Stock | $45.65 | June 13, 2025 | 5,000 | Acquired |
| June 8, 2017 | ATRA | Non-Qualified Stock Option (Right to Buy) | Common Stock | $13.20 | June 8, 2024 | 21,500 | Acquired |
| Jan. 3, 2017 | ATRA | Non-Qualified Stock Option (Right to Buy) | Common Stock | $15.08 | Jan. 3, 2024 | 5,500 | Acquired |
| Jan. 4, 2016 | ATRA | Non-Qualified Stock Option (Right to Buy) | Common Stock | $24.05 | Jan. 4, 2023 | 10,500 | Acquired |
| March 26, 2015 | ATRA | Non-Qualified Stock Option (Right to Buy) | Common Stock | $34.90 | March 26, 2022 | 25,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 6 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| May 1, 2025 | JBIO | Stock Option (Right to Buy) | 93,113 | Direct |
| May 1, 2025 | JBIO | Stock Option (Right to Buy) | 176,771 | Direct |
| Feb. 2, 2023 | GPCR | Stock option (right to buy) | 80,000 | Direct |
| June 26, 2019 | ADPT | Stock Option (Right to Buy) | 100,000 | Direct |
| June 26, 2019 | ADPT | Stock Option (Right to Buy) | 15,000 | Direct |
| June 26, 2019 | ADPT | Stock Option (Right to Buy) | 20,000 | Direct |