Natalie Sacks

CIK 1683811 · View on SEC EDGAR ↗

Insider

First SEC filing: July 22, 2021 · Latest: July 22, 2021

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 2 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.

Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Dec. 21, 2022 ZYME A 25,000 25,000 Direct Acquired (price as of 2026-08-20)
Dec. 20, 2021 CRBU A 27,500 27,500 Direct Acquired (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
Dec. 21, 2022 ZYME Stock Option (Right to Buy) Common Stock (25,000) $8.75 Dec. 20, 2032 25,000 Acquired
Dec. 20, 2021 CRBU Option to purchase Common Stock Common Stock (27,500) $15.16 Dec. 19, 2031 27,500 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
July 22, 2021 CRBU Stock Option (Right to Buy)→ Common Stock (36,360) 36,360 Direct
July 22, 2021 CRBU Stock Option (Right to Buy)→ Common Stock (36,360) 36,360 Direct
July 22, 2021 CRBU Stock Option (Right to Buy)→ Common Stock (18,180) 18,180 Direct