Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 48 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

No open-market trades on record; showing all filings.

DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Feb. 28, 2023 EBS F 971 $12.38 $12,021 86,645 Direct -1.11% Disposed -41.5% (price as of 2026-10-05)
Feb. 24, 2023 EBS F 845 $13.71 $11,585 87,616 Direct -0.96% Disposed -47.2% (price as of 2026-10-05)
Feb. 23, 2023 EBS F 365 $14.30 $5,220 88,461 Direct -0.41% Disposed -49.4% (price as of 2026-10-05)
Feb. 8, 2023 EBS A 95 · · 90,877 Direct +0.10% Acquired (price as of 2026-10-05)
Feb. 8, 2023 EBS F 2,051 $13.25 $27,176 88,826 Direct -2.26% Disposed -45.4% (price as of 2026-10-05)
March 1, 2022 EBS A 31,417 · · 74,630 Direct +72.70% Acquired (price as of 2026-10-05)
March 1, 2022 EBS A 16,916 · · 91,546 Direct +22.67% Acquired (price as of 2026-10-05)
March 1, 2022 EBS A 38,664 $41.38 $1,599,916 38,664 Direct · Acquired -82.5% (price as of 2026-10-05)
Feb. 28, 2022 EBS F 764 $39.64 $30,285 90,782 Direct -0.83% Disposed -81.7% (price as of 2026-10-05)
Feb. 24, 2022 EBS F 857 $42.47 $36,397 43,213 Direct -1.94% Disposed -83.0% (price as of 2026-10-05)
Feb. 23, 2022 EBS F 442 $42.23 $18,666 44,070 Direct -0.99% Disposed -82.9% (price as of 2026-10-05)
Feb. 22, 2022 EBS A 1,836 · · 46,596 Direct +4.10% Acquired (price as of 2026-10-05)
Feb. 22, 2022 EBS F 2,084 $42.23 $88,007 44,512 Direct -4.47% Disposed -82.9% (price as of 2026-10-05)
Feb. 26, 2021 EBS F 764 $97.15 $74,223 45,559 Direct -1.65% Disposed -92.5% (price as of 2026-10-05)
Feb. 26, 2021 EBS F 799 $97.15 $77,623 44,760 Direct -1.75% Disposed -92.5% (price as of 2026-10-05)
Feb. 24, 2021 EBS A 3,744 · · 43,466 Direct +9.43% Acquired (price as of 2026-10-05)
Feb. 24, 2021 EBS A 3,744 · · 47,210 Direct +8.61% Acquired (price as of 2026-10-05)
Feb. 24, 2021 EBS F 887 $93.49 $82,926 46,323 Direct -1.88% Disposed -92.3% (price as of 2026-10-05)
Feb. 24, 2021 EBS A 14,973 $93.49 $1,399,826 14,973 Direct · Acquired -92.3% (price as of 2026-10-05)
Feb. 9, 2021 EBS A 2,656 · · 42,152 Direct +6.72% Acquired (price as of 2026-10-05)
Feb. 9, 2021 EBS F 2,430 $123.45 $299,984 39,722 Direct -5.76% Disposed -94.1% (price as of 2026-10-05)
Aug. 7, 2020 EBS F 1,303 $126.96 $165,429 39,496 Direct -3.19% Disposed -94.3% (price as of 2026-10-05)
Feb. 26, 2020 EBS F 508 $59.91 $30,434 41,381 Direct -1.21% Disposed -87.9% (price as of 2026-10-05)
Feb. 26, 2020 EBS F 582 $59.91 $34,868 40,799 Direct -1.41% Disposed -87.9% (price as of 2026-10-05)
Feb. 25, 2020 EBS A 5,697 · · 36,192 Direct +18.68% Acquired (price as of 2026-10-05)
Feb. 25, 2020 EBS A 5,697 · · 41,889 Direct +15.74% Acquired (price as of 2026-10-05)
Feb. 25, 2020 EBS A 22,784 $61.44 $1,399,849 43,105 Direct +112.12% Acquired -88.2% (price as of 2026-10-05)
Aug. 7, 2019 EBS F 1,287 $44.47 $57,233 30,495 Direct -4.05% Disposed -83.7% (price as of 2026-10-05)
Feb. 26, 2019 EBS F 534 $61.01 $32,579 21,620 Direct -2.41% Disposed -88.1% (price as of 2026-10-05)
Feb. 26, 2019 EBS A 5,081 · · 26,701 Direct +23.50% Acquired (price as of 2026-10-05)
Feb. 26, 2019 EBS A 5,081 · · 31,782 Direct +19.03% Acquired (price as of 2026-10-05)
Feb. 26, 2019 EBS A 20,321 $61.01 $1,239,784 20,321 Direct · Acquired -88.1% (price as of 2026-10-05)
Aug. 7, 2018 EBS F 1,286 $54.65 $70,280 22,154 Direct -5.49% Disposed -86.8% (price as of 2026-10-05)
Feb. 27, 2018 EBS A 21,253 $49.64 $1,054,999 21,253 Direct · Acquired -85.4% (price as of 2026-10-05)
Feb. 27, 2018 EBS A 5,313 · · 23,440 Direct +29.31% Acquired (price as of 2026-10-05)
Feb. 27, 2018 EBS A 5,313 · · 18,127 Direct +41.46% Acquired (price as of 2026-10-05)
Aug. 8, 2017 EBS A 12,814 · · 12,814 Direct · Acquired (price as of 2026-10-05)
Aug. 8, 2017 EBS A 20,083 · · 20,083 Direct · Acquired (price as of 2026-10-05)
April 28, 2017 MGNX F 1,862 $21.61 $40,238 16,986 Direct -9.88% Disposed -82.6% (price as of 2026-10-05)
Feb. 15, 2017 MGNX A 55,000 $20.53 $1,129,150 55,000 Direct · Acquired -81.6% (price as of 2026-10-05)
April 28, 2016 MGNX F 1,862 $20.84 $38,804 18,848 Direct -8.99% Disposed -81.9% (price as of 2026-10-05)
April 28, 2016 MGNX F 1,730 $20.84 $36,053 18,980 Direct -8.35% Disposed -81.9% (price as of 2026-10-05)
Dec. 18, 2015 MGNX A 45,000 · · 45,000 Direct · Acquired (price as of 2026-10-05)
April 28, 2015 MGNX F 925 $32.02 $29,618 20,710 Direct -4.28% Disposed -88.2% (price as of 2026-10-05)
Dec. 12, 2014 MGNX A 30,000 · · 30,000 Direct · Acquired (price as of 2026-10-05)
Oct. 28, 2014 MGNX F 865 $21.79 $18,848 21,635 Direct -3.84% Disposed -82.7% (price as of 2026-10-05)
Dec. 6, 2013 XNCR C 4,090,519 · · 0 Indirect -100.00% Disposed (price as of 2026-10-05)
Dec. 6, 2013 XNCR C 1,319,522 · · 1,319,522 Indirect · Acquired (price as of 2026-10-05)

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.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
March 1, 2022 EBS Employee Stock Options (Right to Buy) Common Stock (38,664) $41.38 Feb. 28, 2029 38,664 Acquired
Feb. 24, 2021 EBS Employee Stock Options (Right to Buy) Common Stock (14,973) $93.49 Feb. 23, 2028 14,973 Acquired
Feb. 25, 2020 EBS Employee Stock Options (Right to Buy) Common Stock (22,784) $61.44 Feb. 24, 2027 22,784 Acquired
Feb. 26, 2019 EBS Employee Stock Option (Right to Buy) Common Stock (20,321) $61.01 Feb. 25, 2016 20,321 Acquired
Feb. 27, 2018 EBS Employee stock option (right to buy) Common Stock (21,253) $49.64 Feb. 26, 2025 21,253 Acquired
Aug. 8, 2017 EBS Employee stock option (right to buy) Common Stock (20,083) $36.09 Aug. 7, 2024 20,083 Acquired
Feb. 15, 2017 MGNX Common Stock Common Stock (55,000) $20.53 Feb. 15, 2027 55,000 Acquired
Dec. 18, 2015 MGNX Employee Stock Option (right to buy) Common Stock (45,000) $31.43 Dec. 18, 2025 45,000 Acquired
Dec. 12, 2014 MGNX Employee Stock Option (right to buy) Common Stock (30,000) $29.68 Dec. 12, 2024 30,000 Acquired
Dec. 6, 2013 XNCR Series A-1 Preferred Stock Common Stock (1,319,522) · · 4,090,519 Disposed

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 3 holdings

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
June 9, 2014 MGNX Common Stock 22,500 Direct
June 9, 2014 MGNX Stock Option (right to buy)→ Common Stock (90,000) 90,000 Direct
Dec. 2, 2013 XNCR Series A-1 Preferred Stock→ Common Stock (1,319,522) 1,319,522 Indirect

Compensation (DEF 14A)

08

Matched by name from proxy statements (DEF 14A) — verify against the filing.

Fiscal yearSalaryBonusStock awards Option awardsNon-equity incentivePension changeOtherTotal
2015 $357,727 · · · $119,700 · $94,047 $1,505,373
2014 $228,867 · · · $88,000 · $53,900 $2,572,836

EBS

Chief Strategy and Development Officer
Fiscal yearSalaryBonusStock awards Option awardsNon-equity incentivePension changeOtherTotal
2022 $574,846 · · · $198,375 · $8,262 $3,504,868
2021 $553,885 · · · $258,075 · $8,700 $2,070,344
2020 $528,803 · · · $445,204 · $9,565 $2,159,032

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.