William J. Mclean

CIK 1789996 · View on SEC EDGAR ↗

Insider

First SEC filing: Oct. 2, 2019 · Latest: Oct. 2, 2019

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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
Oct. 2, 2019 KRRO A 111,350 111,350 Direct 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
Oct. 2, 2019 KRRO Stock Option Common Stock (111,350) $14.00 Oct. 1, 2029 111,350 Acquired

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

Initial ownership (Form 3) 2 holdings

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

Date Ticker Security Shares Ownership
Oct. 2, 2019 KRRO Common Stock 296,934 Direct
Oct. 2, 2019 KRRO Stock Option→ Common Stock (107,068) 107,068 Direct