John A Scarlett

CIK 1270928 · View on SEC EDGAR ↗

Insider

First SEC filing: Oct. 3, 2011 · Latest: Feb. 4, 2021

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Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 29 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

29 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Feb. 27, 2025 GERN P 12,500 $1.76 $22,000 12,500 Direct — Acquired -11.1% (price as of 2026-08-20)
June 4, 2024 GERN S 10b5-1 600,000 $4.00 $2,400,000 600,000 Direct -50.00% Disposed -60.9% (price as of 2026-08-20)
Feb. 10, 2023 GERN S 10b5-1 446,668 $3.00 $1,340,004 0 Direct -100.00% Disposed -47.8% (price as of 2026-08-20)
Feb. 9, 2023 GERN S 10b5-1 446,666 $3.03 $1,353,398 0 Direct -100.00% Disposed -48.3% (price as of 2026-08-20)
Feb. 8, 2023 GERN S 10b5-1 446,666 $3.08 $1,375,731 0 Direct -100.00% Disposed -49.2% (price as of 2026-08-20)
April 1, 2013 GERN P 50,000 $1.03 $51,500 125,000 Indirect +66.67% Acquired 60.8% (price as of 2026-08-20)
Jan. 24, 2012 GERN P 75,000 $1.72 $129,000 75,000 Direct — Acquired -3.7% (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. 18, 2025 GERN Restricted Stock Units Common Stock (410,000) — — 410,000 Acquired
Feb. 18, 2025 GERN Stock Option (right to buy) Common Stock (2,457,000) $2.63 Feb. 17, 2035 2,457,000 Acquired
June 6, 2024 GERN Employee Stock Option (right to buy) Common Stock (1,000,000) $1.72 Nov. 6, 2028 1,000,000 Acquired
June 4, 2024 GERN Stock Option (right to buy) Common Stock (600,000) $2.54 Feb. 11, 2026 600,000 Disposed
Feb. 14, 2024 GERN Employee Stock Option (Right to Buy) Common Stock (3,000,000) $2.10 Feb. 13, 2034 3,000,000 Acquired
Aug. 15, 2023 GERN Employee Stock Option (Right to buy) Common Stock (500,000) $1.72 Nov. 6, 2028 500,000 Acquired
Feb. 22, 2023 GERN Employee Stock Option (Right to buy) Common Stock (1,750,000) $2.83 Feb. 21, 2033 1,750,000 Acquired
Feb. 10, 2023 GERN Employee Stock Option (right to buy) Common Stock (446,668) $1.50 Feb. 13, 2023 446,668 Disposed
Feb. 9, 2023 GERN Employee Stock Option (right to buy) Common Stock (446,666) $1.50 Feb. 13, 2023 446,666 Disposed
Feb. 8, 2023 GERN Employee Stock Option (right to buy) Common Stock (446,666) $1.50 Feb. 13, 2023 446,666 Disposed
Feb. 16, 2022 GERN Employee Stock Option (Right to buy) Common Stock (2,100,000) $1.06 Feb. 15, 2032 2,100,000 Acquired
Feb. 2, 2021 GERN Employee Stock Option (Right to buy) Common Stock (600,000) $2.06 Feb. 1, 2031 600,000 Acquired
Feb. 12, 2020 GERN Employee Stock Option (right to buy) Common Stock (582,750) $1.30 Feb. 11, 2030 582,750 Acquired
Jan. 30, 2019 GERN Employee Stock Option (right to buy) Common Stock (1,050,000) $1.03 Jan. 29, 2029 1,050,000 Acquired
June 13, 2018 CTMX Stock Option (Right to Buy) Common Stock (14,000) $25.25 June 12, 2028 14,000 Acquired
Jan. 31, 2018 GERN Employee Stock Option (right to buy) Common Stock (1,050,000) $2.45 Jan. 31, 2028 1,050,000 Acquired
June 20, 2017 CTMX Stock Option (right to buy) Common Stock (14,000) $13.78 June 19, 2027 14,000 Acquired
Feb. 9, 2017 GERN Employee Stock Option (right to buy) Common Stock (1,050,000) $2.15 Feb. 9, 2027 1,050,000 Acquired
June 10, 2016 CTMX Stock Option (right to buy) Common Stock (28,000) $10.17 June 9, 2026 28,000 Acquired
Feb. 11, 2016 GERN Employee Stock Option (right to buy) Common Stock (600,000) $2.54 Feb. 11, 2026 600,000 Acquired
March 13, 2015 GERN Employee Stock Option (right to buy) Common Stock (600,000) $4.34 March 13, 2025 600,000 Acquired
Feb. 11, 2014 GERN Employee Stock Option (right to buy) Common Stock (1,340,000) $5.09 Feb. 11, 2024 1,340,000 Acquired
Feb. 13, 2013 GERN Employee Stock Option (right to buy) Common Stock (1,340,000) $1.50 Feb. 13, 2023 1,340,000 Acquired
May 17, 2012 GERN Employee Stock Option (right to buy) Common Stock (505,000) $1.41 May 17, 2022 505,000 Acquired

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

Initial ownership (Form 3) 1 holding

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

Date Ticker Security Shares Ownership
Oct. 3, 2011 GERN Stock Option (Right to Buy)→ Common Stock (1,000,000) 1,000,000 Direct

Compensation (DEF 14A)

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

GERN

President & CEO
Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2024 $810,600 — — — $658,600 — $64,838 $6,125,238
2023 $787,000 $17,906 — $3,563,000 $493,694 — $62,492 $4,924,092
2022 $761,320 — — — $671,000 — — $2,997,202

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