John Mendlein

CIK 1238362 · View on SEC EDGAR ↗

Insider

First SEC filing: Dec. 7, 2018 · Latest: Dec. 7, 2018

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 28 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

28 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Jan. 13, 2023 FATE P 36,631 $5.43 $198,906 282,770 Direct +14.88% Acquired -51.1% (price as of 2026-08-19)
Jan. 11, 2023 FATE P 88,048 $5.67 $499,232 246,139 Direct +55.69% Acquired -53.2% (price as of 2026-08-19)
June 3, 2022 FATE S 1,364 $22.79 $31,086 158,091 Direct -0.86% Disposed -88.4% (price as of 2026-08-19)
March 10, 2022 FATE S 10b5-1 12,069 $35.48 $428,208 159,455 Direct -7.04% Disposed -92.5% (price as of 2026-08-19)
March 10, 2022 FATE S 10b5-1 19,493 $34.73 $676,992 171,524 Direct -10.20% Disposed -92.4% (price as of 2026-08-19)
Dec. 21, 2018 ATYR P 195,000 $0.42 $81,900 615,382 Direct +46.39% Acquired -91.0% (price as of 2026-08-19)
Dec. 20, 2018 ATYR P 50,000 $0.41 $20,500 420,382 Direct +13.50% Acquired -90.8% (price as of 2026-08-19)
Aug. 31, 2017 ATYR P 37,736 $2.65 $100,000 367,883 Direct +11.43% Acquired -98.6% (price as of 2026-08-19)
Aug. 31, 2017 ATYR P 14,151 — — 14,151 Direct — Acquired (price as of 2026-08-19)
April 24, 2017 ATYR P 10b5-1 124 $3.00 $372 327,647 Direct +0.04% Acquired -98.7% (price as of 2026-08-19)
April 20, 2017 ATYR P 10b5-1 1,552 $3.00 $4,656 327,523 Direct +0.48% Acquired -98.7% (price as of 2026-08-19)
April 18, 2017 ATYR P 10b5-1 1,000 $3.00 $3,000 325,971 Direct +0.31% Acquired -98.7% (price as of 2026-08-19)
Dec. 19, 2016 ATYR P 69,000 $2.20 $151,800 324,971 Direct +26.96% Acquired -98.3% (price as of 2026-08-19)
April 5, 2016 ATYR P 2,500 $3.52 $8,800 250,971 Direct +1.01% Acquired -98.9% (price as of 2026-08-19)
April 5, 2016 ATYR P 2,500 $3.55 $8,875 248,471 Direct +1.02% Acquired -98.9% (price as of 2026-08-19)
Oct. 4, 2013 FATE P 16,667 $6.00 $100,002 156,774 Direct +11.90% Acquired -55.8% (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
May 29, 2025 FATE Stock Option (Right to Buy) Common Stock (55,000) $1.32 May 29, 2035 55,000 Acquired
June 7, 2024 FATE Stock Option (Right to Buy) Common Stock (40,000) $3.68 June 7, 2034 40,000 Acquired
June 6, 2023 FATE Stock Option (Right to Buy) Common Stock (40,000) $5.52 June 6, 2033 40,000 Acquired
Jan. 19, 2023 FATE Stock Option (Right to Buy) Common Stock (28,461) $1.37 Feb. 6, 2023 28,461 Acquired
June 9, 2022 FATE Stock Option (Right to Buy) Common Stock (11,893) $23.48 June 9, 2032 11,893 Acquired
March 10, 2022 FATE Stock Option (Right to Buy) Common Stock (31,562) $1.63 March 12, 2022 31,562 Disposed
June 2, 2021 FATE Stock Option (Right to Buy) Common Stock (4,334) $68.94 June 1, 2031 4,334 Acquired
May 1, 2020 FATE Stock Option (right to buy) Common Stock (16,000) $26.59 May 1, 2030 16,000 Acquired
May 8, 2019 ATYR Stock Option (right to buy) Common Stock (20,000) $0.58 May 8, 2029 20,000 Acquired
May 3, 2019 FATE Stock Option (right to buy) Common Stock (16,000) $17.15 May 3, 2029 16,000 Acquired
May 15, 2018 ATYR Stock Option (right to buy) Common Stock (20,000) $1.35 May 15, 2028 20,000 Acquired
May 2, 2018 FATE Stock Option (right to buy) Common Stock (16,000) $9.78 May 2, 2028 16,000 Acquired
Jan. 2, 2018 ATYR Stock Option (right to buy) Common Stock (32,000) $3.80 Jan. 2, 2028 32,000 Acquired
Aug. 31, 2017 ATYR Warrant to Purchase Common Stock Common Stock (14,151) $4.64 Dec. 31, 2019 14,151 Acquired
June 15, 2017 EDIT Stock Option (right to buy) Common Stock (11,538) $15.63 June 14, 2027 11,538 Acquired
Feb. 7, 2017 ATYR Employee Stock Option (right to buy) Common Stock (185,000) $3.30 March 7, 2027 185,000 Acquired
Feb. 3, 2016 EDIT Stock Option (right to buy) Common Stock (96,153) $16.00 Feb. 2, 2026 96,153 Acquired
Jan. 27, 2016 ATYR Employee Stock Option (right to buy) Common Stock (135,000) $6.14 Jan. 27, 2026 135,000 Acquired
Jan. 4, 2016 ATYR Employee Stock Option (right to buy) Common Stock (148,732) $9.13 — 148,732 Acquired
Oct. 1, 2015 ATYR Employee Stock Option (right to buy) Common Stock (65,070) $10.24 — 65,070 Acquired
Oct. 1, 2015 ATYR Employee Stock Option (right to buy) Common Stock (71,000) $10.24 Oct. 1, 2025 71,000 Acquired
May 12, 2015 ATYR Series D Redeemable Convertible Preferred Stock Common Stock — — 21,122 Disposed
May 12, 2015 ATYR Series C Redeemable Convertible Preferred Stock Common Stock — — 170,218 Disposed
May 6, 2015 ATYR Stock Option (right to buy) Common Stock (163,437) $14.00 May 6, 2025 163,437 Acquired

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

Initial ownership (Form 3) 18 holdings

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

Date Ticker Security Shares Ownership
Dec. 7, 2018 MRNA Common Stock 806,154 Direct
Dec. 7, 2018 MRNA Stock Option (Right to Buy)→ Common Stock (23,853) 23,853 Direct
Dec. 7, 2018 MRNA Stock Option (Right to Buy)→ Common Stock (9,263) 9,263 Direct
Dec. 7, 2018 MRNA Stock Option (Right to Buy)→ Common Stock (42,201) 42,201 Direct
Dec. 7, 2018 MRNA Stock Option (Right to Buy)→ Common Stock (2,981,651) 2,981,651 Direct
Feb. 2, 2016 EDIT No securities are beneficially owned 0 Direct
May 6, 2015 ATYR Common Stock — Direct
May 6, 2015 ATYR Series C Redeemable Convertible Preferred Stock→ Common Stock (170,218) 170,218 Direct
May 6, 2015 ATYR Series D Redeemable Convertible Preferred Stock→ Common Stock (21,122) 21,122 Direct
May 6, 2015 ATYR Stock Option (right to buy)→ Common Stock (50,979) 50,979 Direct
May 6, 2015 ATYR Stock Option (right to buy)→ Common Stock (42,228) 42,228 Direct
May 6, 2015 ATYR Stock Option (right to buy)→ Common Stock (137,871) 137,871 Direct
May 6, 2015 ATYR Stock Option (right to buy)→ Common Stock (119,214) 119,214 Direct
May 6, 2015 ATYR Stock Option (right to buy)→ Common Stock (25,144) 25,144 Direct
May 6, 2015 ATYR Stock Option (right to buy)→ Common Stock (125,720) 125,720 Direct
Sept. 30, 2013 FATE Common Stock 140,107 Direct
Sept. 30, 2013 FATE Stock Option (right to buy)→ Common Stock (31,562) 31,562 Direct
Sept. 30, 2013 FATE Stock Option (right to buy)→ Common Stock (28,461) 28,461 Direct

Compensation (DEF 14A)

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

ATYR

Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2017 $518,167 — — $2,412,378 $165,750 — $20,603 $3,116,898
2016 $494,700 — — $865,816 $192,933 — $16,028 $1,569,477
2015 $472,750 — — $3,231,371 $210,374 — $14,076 $3,928,571

MRNA

Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2018 $500,000 $400,000 — — — — $8,533 $26,163,117

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