Eric Dobmeier
CIK 1202785 · View on SEC EDGAR ↗
Insider
First SEC filing: June 11, 2026 · Latest: June 11, 2026
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 49 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
49 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Nov. 10, 2023 | ATRA | P | 446,825 | $0.23 | $102,770 | 563,325 Direct | +383.54% | Acquired | 54.3% (price as of 2026-08-19) |
| Jan. 4, 2021 | ADPT | S 10b5-1 | 400 | $59.46 | $23,784 | 0 Direct | -100.00% | Disposed | -56.9% (price as of 2026-08-19) |
| Jan. 4, 2021 | ADPT | S 10b5-1 | 592 | $58.67 | $34,733 | 400 Direct | -59.68% | Disposed | -56.4% (price as of 2026-08-19) |
| Jan. 4, 2021 | ADPT | S 10b5-1 | 5,725 | $57.76 | $330,676 | 992 Direct | -85.23% | Disposed | -55.7% (price as of 2026-08-19) |
| Jan. 4, 2021 | ADPT | S 10b5-1 | 3,283 | $56.10 | $184,176 | 6,717 Direct | -32.83% | Disposed | -54.4% (price as of 2026-08-19) |
| Oct. 1, 2020 | ADPT | S 10b5-1 | 776 | $49.21 | $38,187 | 0 Direct | -100.00% | Disposed | -48.0% (price as of 2026-08-19) |
| Oct. 1, 2020 | ADPT | S 10b5-1 | 9,224 | $48.47 | $447,087 | 776 Direct | -92.24% | Disposed | -47.2% (price as of 2026-08-19) |
| July 6, 2020 | ADPT | S 10b5-1 | 400 | $47.98 | $19,192 | 0 Direct | -100.00% | Disposed | -46.6% (price as of 2026-08-19) |
| July 6, 2020 | ADPT | S 10b5-1 | 9,600 | $47.34 | $454,464 | 400 Direct | -96.00% | Disposed | -45.9% (price as of 2026-08-19) |
| June 3, 2020 | ADPT | S | 5,000 | $39.79 | $198,950 | 0 Direct | -100.00% | Disposed | -35.7% (price as of 2026-08-19) |
| May 19, 2020 | ADPT | S 10b5-1 | 5,000 | $40.00 | $200,000 | 0 Direct | -100.00% | Disposed | -36.0% (price as of 2026-08-19) |
| May 7, 2020 | ADPT | S 10b5-1 | 5,000 | $35.00 | $175,000 | 0 Direct | -100.00% | Disposed | -26.9% (price as of 2026-08-19) |
| Dec. 31, 2019 | ADPT | S 10b5-1 | 5,000 | $30.00 | $150,000 | 0 Direct | -100.00% | Disposed | -14.7% (price as of 2026-08-19) |
| Dec. 26, 2019 | ADPT | S 10b5-1 | 2 | $29.91 | $60 | 0 Direct | -100.00% | Disposed | -14.4% (price as of 2026-08-19) |
| Dec. 26, 2019 | ADPT | S 10b5-1 | 14,998 | $29.29 | $439,291 | 2 Direct | -99.99% | Disposed | -12.6% (price as of 2026-08-19) |
| June 27, 2019 | ATRA | P | 2,000 | $19.50 | $39,000 | 16,000 Direct | +14.29% | Acquired | -98.2% (price as of 2026-08-19) |
| March 17, 2016 | ATRA | P | 3,000 | $13.86 | $41,580 | 5,500 Direct | +120.00% | Acquired | -97.4% (price as of 2026-08-19) |
| Dec. 16, 2015 | ATRA | P | 2,500 | $22.00 | $55,000 | 2,500 Direct | — | Acquired | -98.4% (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 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 (15,500) | $13.66 | June 10, 2036 | 15,500 | Acquired |
| June 9, 2026 | JBIO | Stock Option (Right to Buy) | Common Stock (34,843) | $15.22 | June 8, 2036 | 34,843 | Acquired |
| April 29, 2025 | JBIO | Stock Option (Right to Buy) | Common Stock (23,017) | $10.14 | April 29, 2035 | 23,017 | Acquired |
| May 31, 2023 | ATRA | Non-Qualified Stock Option (Right to Buy) | Common Stock (79,500) | $1.53 | May 30, 2033 | 79,500 | Acquired |
| June 23, 2022 | ATRA | Non-Qualified Stock Option (Right to Buy) | Common Stock (31,500) | $7.35 | June 22, 2032 | 31,500 | Acquired |
| June 8, 2021 | ATRA | Non-Qualified Stock Option (Right to Buy) | Common Stock (17,500) | $13.80 | June 7, 2031 | 17,500 | Acquired |
| Feb. 14, 2021 | ADPT | Stock Option (Right to Buy) | Common Stock (3,759) | $66.50 | Feb. 14, 2031 | 3,759 | Acquired |
| Jan. 4, 2021 | ADPT | Stock Option (Right to Buy) | Common Stock (10,000) | $6.32 | Oct. 18, 2026 | 10,000 | Disposed |
| Oct. 1, 2020 | ADPT | Stock Option (Right to Buy) | Common Stock (10,000) | $6.32 | Oct. 18, 2026 | 10,000 | Disposed |
| July 6, 2020 | ADPT | Stock Option (Right to Buy) | Common Stock (10,000) | $6.32 | Oct. 18, 2026 | 10,000 | Disposed |
| June 16, 2020 | ATRA | Non-Qualified Stock Option (Right to Buy) | Common Stock (24,500) | $10.54 | June 15, 2030 | 24,500 | Acquired |
| June 3, 2020 | ADPT | Stock Option (Right to Buy) | Common Stock (5,000) | $6.32 | Oct. 18, 2026 | 5,000 | Disposed |
| May 19, 2020 | ADPT | Stock Option (Right to Buy) | Common Stock (5,000) | $6.32 | Oct. 18, 2026 | 5,000 | Disposed |
| May 7, 2020 | ADPT | Stock Option (Right to Buy) | Common Stock (5,000) | $6.32 | Oct. 18, 2026 | 5,000 | Disposed |
| Feb. 13, 2020 | ADPT | Stock Option (Right to Buy) | Common Stock (8,888) | $31.71 | Feb. 13, 2030 | 8,888 | Acquired |
| Dec. 31, 2019 | ADPT | Stock Option (Right to Buy) | Common Stock (5,000) | $6.32 | Oct. 18, 2026 | 5,000 | Disposed |
| Dec. 31, 2019 | ADPT | Stock Option (Right to Buy) | Common Stock (5,000) | $6.32 | Oct. 18, 2026 | 5,000 | Disposed |
| Dec. 26, 2019 | ADPT | Stock Option (Right to Buy) | Common Stock (15,000) | $6.32 | Oct. 18, 2026 | 15,000 | Disposed |
| Dec. 26, 2019 | ADPT | Stock Option (Right to Buy) | Common Stock (15,000) | $6.32 | Oct. 18, 2026 | 15,000 | Disposed |
| June 27, 2019 | ATRA | Non-Qualified Stock Option (Right to Buy) | Common Stock (13,000) | $20.25 | June 26, 2029 | 13,000 | Acquired |
| June 14, 2018 | ATRA | Non-Qualified Stock Option (Right to Buy) | Common Stock (5,000) | $45.65 | June 13, 2025 | 5,000 | Acquired |
| June 8, 2017 | ATRA | Non-Qualified Stock Option (Right to Buy) | Common Stock (21,500) | $13.20 | June 8, 2024 | 21,500 | Acquired |
| Jan. 3, 2017 | ATRA | Non-Qualified Stock Option (Right to Buy) | Common Stock (5,500) | $15.08 | Jan. 3, 2024 | 5,500 | Acquired |
| Jan. 4, 2016 | ATRA | Non-Qualified Stock Option (Right to Buy) | Common Stock (10,500) | $24.05 | Jan. 4, 2023 | 10,500 | Acquired |
| March 26, 2015 | ATRA | Non-Qualified Stock Option (Right to Buy) | Common Stock (25,000) | $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)→ Common Stock (93,113) | 93,113 | Direct |
| May 1, 2025 | JBIO | Stock Option (Right to Buy)→ Common Stock (176,771) | 176,771 | Direct |
| Feb. 2, 2023 | GPCR | Stock option (right to buy)→ Ordinary Shares (80,000) | 80,000 | Direct |
| June 26, 2019 | ADPT | Stock Option (Right to Buy)→ Common Stock (100,000) | 100,000 | Direct |
| June 26, 2019 | ADPT | Stock Option (Right to Buy)→ Common Stock (15,000) | 15,000 | Direct |
| June 26, 2019 | ADPT | Stock Option (Right to Buy)→ Common Stock (20,000) | 20,000 | Direct |