Thomas Spitznagel

CIK 1675464 · View on SEC EDGAR ↗

Insider

First SEC filing: May 27, 2016 · Latest: May 27, 2016

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 33 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

33 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
March 4, 2024 MGNX S 10b5-1 10,000 $20.00 $200,000 8,316 Direct -54.60% Disposed -79.2% (price as of 2026-08-20)
July 16, 2021 MGNX S 10b5-1 5,000 $25.01 $125,050 0 Direct -100.00% Disposed -83.4% (price as of 2026-08-20)
April 15, 2021 MGNX S 10b5-1 5,000 $30.91 $154,550 0 Direct -100.00% Disposed -86.6% (price as of 2026-08-20)
Aug. 20, 2020 MGNX S 10b5-1 7,500 $26.87 $201,525 0 Direct -100.00% Disposed -84.5% (price as of 2026-08-20)
May 20, 2020 MGNX S 10b5-1 7,500 $25.30 $189,750 0 Direct -100.00% Disposed -83.6% (price as of 2026-08-20)
Feb. 6, 2019 MGNX S 10b5-1 1,770 $30.00 $53,100 0 Direct -100.00% Disposed -86.1% (price as of 2026-08-20)

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, 2025 MGNX Restricted Stock Unit Common Stock (13,332) — — 13,332 Disposed
Feb. 8, 2025 MGNX Restricted Stock Unit Common Stock (9,001) — — 9,001 Disposed
Feb. 7, 2025 MGNX Restricted Stock Unit Common Stock (18,000) — — 18,000 Acquired
Feb. 7, 2025 MGNX Employee Stock Option (right to buy) Common Stock (105,000) $2.60 Feb. 7, 2035 105,000 Acquired
March 4, 2024 MGNX Employee stock option (right to buy) Common Stock (10,000) $11.50 Feb. 20, 2030 10,000 Disposed
Feb. 15, 2024 MGNX Restricted Stock Unit Common Stock (13,336) — — 13,336 Disposed
Feb. 8, 2024 MGNX Restricted Stock Unit Common Stock (27,000) — — 27,000 Acquired
Feb. 8, 2024 MGNX Employee Stock Option (right to buy) Common Stock (71,000) $18.30 Feb. 8, 2034 71,000 Acquired
Feb. 15, 2023 MGNX Restricted Stock Unit Common Stock (40,000) — — 40,000 Acquired
Feb. 15, 2023 MGNX Employee stock option (right to buy) Common Stock (170,000) $4.82 Feb. 15, 2033 170,000 Acquired
Feb. 22, 2022 MGNX Employee stock option (right to buy) Common Stock (140,000) $10.15 Feb. 22, 2032 140,000 Acquired
July 16, 2021 MGNX Employee stock option (right to buy) Common Stock (5,000) $7.51 Sept. 17, 2023 5,000 Disposed
April 15, 2021 MGNX Employee stock option (right to buy) Common Stock (5,000) $7.51 Sept. 17, 2023 5,000 Disposed
Feb. 22, 2021 MGNX Employee stock option (right to buy) Common Stock (95,000) $19.18 Feb. 22, 2031 95,000 Acquired
Aug. 20, 2020 MGNX Employee stock option (right to buy) Common Stock (7,500) $7.51 Sept. 17, 2023 7,500 Disposed
May 20, 2020 MGNX Employee stock option (right to buy) Common Stock (7,500) $7.51 Sept. 17, 2023 7,500 Disposed
Feb. 20, 2020 MGNX Employee stock option (right to buy) Common Stock (87,000) $11.50 Feb. 20, 2030 87,000 Acquired
Feb. 21, 2019 MGNX Employee stock option (right to buy) Common Stock (70,000) $21.88 Feb. 21, 2029 70,000 Acquired
Feb. 6, 2019 MGNX Employee stock option (right to buy) Common Stock (1,770) $7.51 Sept. 17, 2023 1,770 Disposed
March 2, 2018 MGNX Employee stock option (right to buy) Common Stock (50,000) $28.94 March 2, 2028 50,000 Acquired
Feb. 15, 2017 MGNX Common Stock Common Stock (45,000) $20.53 Feb. 15, 2027 45,000 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 27, 2016 MGNX Employee Stock Option (right to buy)→ Common Stock (11,985) 11,985 Direct
May 27, 2016 MGNX Employee Stock Option (right to buy)→ Common Stock (51,932) 51,932 Direct
May 27, 2016 MGNX Employee Stock Option (right to buy)→ Common Stock (16,295) 16,295 Direct
May 27, 2016 MGNX Employee Stock Option (right to buy)→ Common Stock (3,705) 3,705 Direct
May 27, 2016 MGNX Employee Stock Option (right to buy)→ Common Stock (9,619) 9,619 Direct
May 27, 2016 MGNX Employee Stock Option (right to buy)→ Common Stock (3,181) 3,181 Direct

Compensation (DEF 14A)

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

MGNX

Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2021 $409,972 — — $1,328,091 $132,302 — $8,700 $1,879,065

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