James Karrels
Insider
First SEC filing: Oct. 9, 2013 · Latest: Oct. 9, 2013
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 |
|---|---|---|---|---|---|---|---|---|---|
| Feb. 15, 2026 | MGNX | M | 14,999 | · | · | 211,827 Direct | +7.62% | Acquired | (price as of 2026-10-02) |
| Feb. 15, 2026 | MGNX | F | 5,790 | $1.71 | $9,901 | 206,037 Direct | -2.73% | Disposed | 109.4% (price as of 2026-10-02) |
| Feb. 15, 2026 | MGNX | M | 14,999 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 12, 2026 | MGNX | A | 150,000 | · | · | 150,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 12, 2026 | MGNX | A | 25,000 | · | · | 25,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 8, 2026 | MGNX | M | 9,999 | · | · | 200,688 Direct | +5.24% | Acquired | (price as of 2026-10-02) |
| Feb. 8, 2026 | MGNX | F | 3,860 | $1.81 | $6,987 | 196,828 Direct | -1.92% | Disposed | 97.8% (price as of 2026-10-02) |
| Feb. 8, 2026 | MGNX | M | 9,999 | · | · | 9,999 Direct | -50.00% | Disposed | (price as of 2026-10-02) |
| Feb. 7, 2026 | MGNX | M | 6,334 | · | · | 193,135 Direct | +3.39% | Acquired | (price as of 2026-10-02) |
| Feb. 7, 2026 | MGNX | F | 2,446 | $1.81 | $4,427 | 190,689 Direct | -1.27% | Disposed | 97.8% (price as of 2026-10-02) |
| Feb. 7, 2026 | MGNX | M | 6,334 | · | · | 12,666 Direct | -33.34% | Disposed | (price as of 2026-10-02) |
| Feb. 15, 2025 | MGNX | M | 14,998 | · | · | 14,999 Direct | -50.00% | Disposed | (price as of 2026-10-02) |
| Feb. 15, 2025 | MGNX | F | 5,790 | $2.56 | $14,822 | 186,801 Direct | -3.01% | Disposed | 39.8% (price as of 2026-10-02) |
| Feb. 15, 2025 | MGNX | M | 14,998 | · | · | 192,591 Direct | +8.45% | Acquired | (price as of 2026-10-02) |
| Feb. 8, 2025 | MGNX | M | 10,002 | · | · | 19,998 Direct | -33.34% | Disposed | (price as of 2026-10-02) |
| Feb. 8, 2025 | MGNX | F | 3,861 | $2.60 | $10,039 | 177,593 Direct | -2.13% | Disposed | 37.7% (price as of 2026-10-02) |
| Feb. 8, 2025 | MGNX | M | 10,002 | · | · | 181,454 Direct | +5.83% | Acquired | (price as of 2026-10-02) |
| Feb. 7, 2025 | MGNX | A | 19,000 | · | · | 19,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 7, 2025 | MGNX | A | 113,000 | · | · | 113,000 Direct | · | Acquired | (price as of 2026-10-02) |
| March 4, 2024 | MGNX | S 10b5-1 | 30,000 | $20.50 | $615,000 | 171,452 Direct | -14.89% | Disposed | -82.5% (price as of 2026-10-02) |
| Feb. 15, 2024 | MGNX | M | 15,003 | · | · | 29,997 Direct | -33.34% | Disposed | (price as of 2026-10-02) |
| Feb. 15, 2024 | MGNX | F | 5,327 | $17.40 | $92,690 | 201,452 Direct | -2.58% | Disposed | -79.4% (price as of 2026-10-02) |
| Feb. 15, 2024 | MGNX | M | 15,003 | · | · | 206,779 Direct | +7.82% | Acquired | (price as of 2026-10-02) |
| Feb. 8, 2024 | MGNX | A | 30,000 | · | · | 30,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 8, 2024 | MGNX | A | 80,000 | · | · | 80,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 15, 2023 | MGNX | A | 45,000 | · | · | 45,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 15, 2023 | MGNX | A | 180,000 | · | · | 180,000 Direct | · | Acquired | (price as of 2026-10-02) |
| June 15, 2022 | MGNX | P | 40,000 | $2.47 | $98,800 | 191,776 Direct | +26.35% | Acquired | 44.9% (price as of 2026-10-02) |
| March 28, 2022 | MGNX | M | 8,316 | $1.51 | $12,557 | 0 Direct | -100.00% | Disposed | 137.1% (price as of 2026-10-02) |
| March 28, 2022 | MGNX | M | 8,316 | $1.51 | $12,557 | 151,776 Direct | +5.80% | Acquired | 137.1% (price as of 2026-10-02) |
| Feb. 22, 2022 | MGNX | A | 140,000 | · | · | 140,000 Direct | · | Acquired | (price as of 2026-10-02) |
| March 22, 2021 | MGNX | S 10b5-1 | 15,000 | $33.00 | $495,000 | 143,460 Direct | -9.47% | Disposed | -89.2% (price as of 2026-10-02) |
| Feb. 22, 2021 | MGNX | A | 95,000 | · | · | 95,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 28, 2021 | MGNX | M | 5,000 | $1.51 | $7,550 | 158,460 Direct | +3.26% | Acquired | 137.1% (price as of 2026-10-02) |
| Jan. 28, 2021 | MGNX | M | 5,000 | · | · | 8,316 Direct | -37.55% | Disposed | (price as of 2026-10-02) |
| Jan. 28, 2021 | MGNX | M | 1,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Jan. 28, 2021 | MGNX | M | 1,000 | $0.94 | $940 | 153,460 Direct | +0.66% | Acquired | 280.9% (price as of 2026-10-02) |
| March 6, 2020 | MGNX | M | 4,473 | · | · | 1,000 Direct | -81.73% | Disposed | (price as of 2026-10-02) |
| March 6, 2020 | MGNX | M | 4,473 | $0.94 | $4,205 | 152,460 Direct | +3.02% | Acquired | 280.9% (price as of 2026-10-02) |
| Feb. 20, 2020 | MGNX | A | 90,000 | $11.50 | $1,035,000 | 90,000 Direct | · | Acquired | -68.9% (price as of 2026-10-02) |
| Jan. 30, 2020 | MGNX | M | 5,180 | · | · | 5,473 Direct | -48.62% | Disposed | (price as of 2026-10-02) |
| Jan. 30, 2020 | MGNX | M | 7,320 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Jan. 30, 2020 | MGNX | M | 5,180 | $0.94 | $4,869 | 147,987 Direct | +3.63% | Acquired | 280.9% (price as of 2026-10-02) |
| Jan. 30, 2020 | MGNX | M | 7,320 | $0.94 | $6,881 | 142,807 Direct | +5.40% | Acquired | 280.9% (price as of 2026-10-02) |
| Feb. 21, 2019 | MGNX | A | 85,000 | · | · | 85,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 24, 2019 | MGNX | M | 2,000 | · | · | 7,320 Direct | -21.46% | Disposed | (price as of 2026-10-02) |
| Jan. 24, 2019 | MGNX | M | 5,326 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Jan. 24, 2019 | MGNX | M | 2,000 | $0.94 | $1,880 | 135,487 Direct | +1.50% | Acquired | 280.9% (price as of 2026-10-02) |
| Jan. 24, 2019 | MGNX | M | 5,326 | $0.94 | $5,006 | 133,487 Direct | +4.16% | Acquired | 280.9% (price as of 2026-10-02) |
| Jan. 8, 2019 | MGNX | M | 5,314 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Jan. 8, 2019 | MGNX | M | 5,314 | $0.94 | $4,995 | 128,161 Direct | +4.33% | Acquired | 280.9% (price as of 2026-10-02) |
| Dec. 18, 2018 | MGNX | M | 5,000 | $0.94 | $4,700 | 122,847 Direct | +4.24% | Acquired | 280.9% (price as of 2026-10-02) |
| Dec. 18, 2018 | MGNX | M | 5,000 | · | · | 5,314 Direct | -48.48% | Disposed | (price as of 2026-10-02) |
| Nov. 27, 2018 | MGNX | M | 3,000 | · | · | 1,420 Direct | -67.87% | Disposed | (price as of 2026-10-02) |
| Nov. 27, 2018 | MGNX | M | 3,000 | $0.94 | $2,820 | 117,847 Direct | +2.61% | Acquired | 280.9% (price as of 2026-10-02) |
| March 5, 2018 | MGNX | S 10b5-1 | 5,000 | $31.00 | $155,000 | 114,847 Direct | -4.17% | Disposed | -88.5% (price as of 2026-10-02) |
| March 2, 2018 | MGNX | A | 70,000 | · | · | 70,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 16, 2018 | MGNX | M | 6,516 | $0.94 | $6,125 | 119,847 Direct | +5.75% | Acquired | 280.9% (price as of 2026-10-02) |
| Jan. 16, 2018 | MGNX | M | 6,516 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Dec. 29, 2017 | MGNX | M | 3,000 | · | · | 6,516 Direct | -31.53% | Disposed | (price as of 2026-10-02) |
| Dec. 29, 2017 | MGNX | M | 3,000 | $0.94 | $2,820 | 113,331 Direct | +2.72% | Acquired | 280.9% (price as of 2026-10-02) |
| Sept. 5, 2017 | MGNX | M | 5,000 | · | · | 9,516 Direct | -34.44% | Disposed | (price as of 2026-10-02) |
| Sept. 5, 2017 | MGNX | M | 5,000 | $0.94 | $4,700 | 110,331 Direct | +4.75% | Acquired | 280.9% (price as of 2026-10-02) |
| Feb. 15, 2017 | MGNX | A | 55,000 | $20.53 | $1,129,150 | 55,000 Direct | · | Acquired | -82.6% (price as of 2026-10-02) |
| Jan. 25, 2017 | MGNX | M | 5,000 | · | · | 14,516 Direct | -25.62% | Disposed | (price as of 2026-10-02) |
| Jan. 25, 2017 | MGNX | M | 5,000 | $0.94 | $4,700 | 105,331 Direct | +4.98% | Acquired | 280.9% (price as of 2026-10-02) |
| Jan. 29, 2016 | MGNX | D | 10,000 | · | · | 19,516 Direct | +105.09% | Acquired | (price as of 2026-10-02) |
| Jan. 29, 2016 | MGNX | M | 10,000 | $0.94 | $9,400 | 100,331 Indirect | +11.07% | Acquired | 280.9% (price as of 2026-10-02) |
| Dec. 18, 2015 | MGNX | A | 45,000 | · | · | 45,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Oct. 7, 2015 | MGNX | M | 6,000 | · | · | 16,533 Direct | -26.63% | Disposed | (price as of 2026-10-02) |
| Oct. 7, 2015 | MGNX | M | 6,000 | $0.94 | $5,640 | 10,100 Direct | +146.34% | Acquired | 280.9% (price as of 2026-10-02) |
| Dec. 24, 2014 | MGNX | M | 4,100 | · | · | 22,533 Direct | -15.39% | Disposed | (price as of 2026-10-02) |
| Dec. 24, 2014 | MGNX | M | 4,100 | $0.94 | $3,854 | 4,100 Direct | · | Acquired | 280.9% (price as of 2026-10-02) |
| Dec. 12, 2014 | MGNX | A | 40,000 | · | · | 40,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Oct. 9, 2013 | MGNX | A | 48,791 | · | · | 48,791 Direct | -50.00% | Disposed | (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 |
|---|---|---|---|---|---|---|---|
| Feb. 15, 2026 | MGNX | Restricted Stock Unit | Common Stock | · | · | 14,999 | Disposed |
| Feb. 12, 2026 | MGNX | Employee Stock Option (right to buy) | Common Stock | $1.71 | Feb. 12, 2036 | 150,000 | Acquired |
| Feb. 12, 2026 | MGNX | Restricted Stock Unit | Common Stock | · | · | 25,000 | Acquired |
| Feb. 8, 2026 | MGNX | Restricted Stock Unit | Common Stock | · | · | 9,999 | Disposed |
| Feb. 7, 2026 | MGNX | Restricted Stock Unit | Common Stock | · | · | 6,334 | Disposed |
| Feb. 15, 2025 | MGNX | Restricted Stock Unit | Common Stock | · | · | 14,998 | Disposed |
| Feb. 8, 2025 | MGNX | Restricted Stock Unit | Common Stock | · | · | 10,002 | Disposed |
| Feb. 7, 2025 | MGNX | Restricted Stock Unit | Common Stock | · | · | 19,000 | Acquired |
| Feb. 7, 2025 | MGNX | Employee Stock Option (right to buy) | Common Stock | $2.60 | Feb. 7, 2035 | 113,000 | Acquired |
| Feb. 15, 2024 | MGNX | Restricted Stock Unit | Common Stock | · | · | 15,003 | Disposed |
| Feb. 8, 2024 | MGNX | Restricted Stock Unit | Common Stock | · | · | 30,000 | Acquired |
| Feb. 8, 2024 | MGNX | Employee Stock Option (right to buy) | Common Stock | $18.30 | Feb. 8, 2034 | 80,000 | Acquired |
| Feb. 15, 2023 | MGNX | Restricted Stock Unit | Common Stock | · | · | 45,000 | Acquired |
| Feb. 15, 2023 | MGNX | Employee stock option (right to buy) | Common Stock | $4.82 | Feb. 15, 2033 | 180,000 | Acquired |
| March 28, 2022 | MGNX | Employee stock option (right to buy) | Common Stock | $1.51 | Jan. 5, 2023 | 8,316 | Disposed |
| Feb. 22, 2022 | MGNX | Employee stock option (right to buy) | Common Stock | $10.15 | Feb. 22, 2032 | 140,000 | Acquired |
| Feb. 22, 2021 | MGNX | Employee stock option (right to buy) | Common Stock | $19.18 | Feb. 22, 2031 | 95,000 | Acquired |
| Jan. 28, 2021 | MGNX | Employee stock option (right to buy) | Common Stock | $1.51 | Jan. 5, 2023 | 5,000 | Disposed |
| Jan. 28, 2021 | MGNX | Employee stock option (right to buy) | Common Stock | $0.94 | March 13, 2022 | 1,000 | Disposed |
| March 6, 2020 | MGNX | Employee stock option (right to buy) | Common Stock | $0.94 | March 13, 2022 | 4,473 | Disposed |
| Feb. 20, 2020 | MGNX | Employee stock option (right to buy) | Common Stock | $11.50 | Feb. 20, 2030 | 90,000 | Acquired |
| Jan. 30, 2020 | MGNX | Employee stock option (right to buy) | Common Stock | $0.94 | March 13, 2022 | 5,180 | Disposed |
| Jan. 30, 2020 | MGNX | Employee stock option (right to buy) | Common Stock | $0.94 | Jan. 8, 2021 | 7,320 | Disposed |
| Feb. 21, 2019 | MGNX | Employee stock option (right to buy) | Common Stock | $21.88 | Feb. 21, 2029 | 85,000 | Acquired |
| Jan. 24, 2019 | MGNX | Employee stock option (right to buy) | Common Stock | $0.94 | Jan. 8, 2021 | 2,000 | Disposed |
| Jan. 24, 2019 | MGNX | Employee stock option (right to buy) | Common Stock | $0.94 | Jan. 9, 2020 | 5,326 | Disposed |
| Jan. 8, 2019 | MGNX | Employee stock option (right to buy) | Common Stock | $0.94 | Jan. 10, 2019 | 5,314 | Disposed |
| Dec. 18, 2018 | MGNX | Employee stock option (right to buy) | Common Stock | $0.94 | Jan. 10, 2019 | 5,000 | Disposed |
| Nov. 27, 2018 | MGNX | Employee stock option (right to buy) | Common Stock | $0.94 | Jan. 10, 2019 | 3,000 | Disposed |
| March 2, 2018 | MGNX | Employee stock option (right to buy) | Common Stock | $28.94 | March 2, 2028 | 70,000 | Acquired |
| Jan. 16, 2018 | MGNX | Employee stock option (right to buy) | Common Stock | $0.94 | April 9, 2018 | 6,516 | Disposed |
| Dec. 29, 2017 | MGNX | Employee stock option (right to buy) | Common Stock | $0.94 | April 9, 2018 | 3,000 | Disposed |
| Sept. 5, 2017 | MGNX | Employee stock option (right to buy) | Common Stock | $0.94 | April 9, 2018 | 5,000 | Disposed |
| Feb. 15, 2017 | MGNX | Common Stock | Common Stock | $20.53 | Feb. 15, 2027 | 55,000 | Acquired |
| Jan. 25, 2017 | MGNX | Employee stock option (right to buy) | Common Stock | $0.94 | April 9, 2018 | 5,000 | Disposed |
| Jan. 29, 2016 | MGNX | Employee Stock Option (right to buy) | Common Stock | $0.94 | April 9, 2018 | 10,000 | Acquired |
| Dec. 18, 2015 | MGNX | Employee Stock Option (right to buy) | Common Stock | $31.43 | Dec. 18, 2025 | 45,000 | Acquired |
| Oct. 7, 2015 | MGNX | Employee Stock Option (right to buy) | Common Stock | $0.94 | April 9, 2018 | 6,000 | Disposed |
| Dec. 24, 2014 | MGNX | Employee Stock Option (right to buy) | Common Stock | $0.94 | April 9, 2018 | 4,100 | Disposed |
| Dec. 12, 2014 | MGNX | Employee Stock Option (right to buy) | Common Stock | $29.68 | Dec. 12, 2024 | 40,000 | Acquired |
| Oct. 9, 2013 | MGNX | Stock Option (right to buy) | Common Stock | $16.00 | Oct. 9, 2023 | 48,791 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 13 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Oct. 9, 2013 | MGNX | Common Stock | 80,231 | Indirect |
| Oct. 9, 2013 | MGNX | Stock Option (right to buy) | · | Direct |
| Oct. 9, 2013 | MGNX | Stock Option (right to buy) | · | Direct |
| Oct. 9, 2013 | MGNX | Stock Option (right to buy) | · | Direct |
| Oct. 9, 2013 | MGNX | Stock Option (right to buy) | · | Direct |
| Oct. 9, 2013 | MGNX | Stock Option (right to buy) | · | Direct |
| Oct. 9, 2013 | MGNX | Stock Option (right to buy) | · | Direct |
| Oct. 9, 2013 | MGNX | Stock Option (right to buy) | · | Direct |
| Oct. 9, 2013 | MGNX | Stock Option (right to buy) | · | Direct |
| Oct. 9, 2013 | MGNX | Stock Option (right to buy) | · | Direct |
| Oct. 9, 2013 | MGNX | Stock Option (right to buy) | · | Direct |
| Oct. 9, 2013 | MGNX | Stock Option (right to buy) | · | Direct |
| Oct. 9, 2013 | MGNX | Stock Option (right to buy) | · | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2025 | $506,548 | $150,000 | $49,400 | $254,284 | $175,000 | · | $14,000 | $1,149,232 |
| 2024 | $491,077 | · | $549,000 | $1,153,112 | $158,554 | · | $13,800 | $2,365,543 |
| 2023 | $471,106 | · | $216,900 | $668,538 | $209,000 | · | $13,200 | $1,578,744 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.