Stephen Quake

CIK 1685889 · View on SEC EDGAR ↗

Insider

First SEC filing: Dec. 19, 2025 · Latest: June 12, 2026

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 1 non-open-market transaction 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.

Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
June 11, 2026 ABCL A 111,701 306,633 Direct +57.30% Acquired (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
June 11, 2026 ABCL Share option (right to buy) Common Shares (111,701) $5.27 June 11, 2036 111,701 Acquired

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

Initial ownership (Form 3) 3 holdings

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

Date Ticker Security Shares Ownership
Dec. 19, 2025 ABCL Common Shares 264,300 Indirect
Dec. 19, 2025 ABCL Common Shares 371,056 Direct
Dec. 19, 2025 ABCL Common Shares 465,080 Indirect