Sekar Kathiresan

Insider

First SEC filing: Jan. 30, 2025 · Latest: Jan. 30, 2025

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Insider at

0 buys (P) 0 sells (S) Net: $0 + 4 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
June 6, 2025	RLAY	A	136,681	—	—	136,681 Direct	—	Acquired	(price as of 2026-08-20)
June 3, 2024	RLAY	A	102,225	—	—	102,225 Direct	—	Acquired	(price as of 2026-08-20)
May 31, 2023	RLAY	A	66,055	—	—	66,055 Direct	—	Acquired	(price as of 2026-08-20)
July 25, 2022	RLAY	A	71,881	—	—	71,881 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.

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
June 6, 2025	RLAY	Stock Option (Right to Buy)	Common Stock (136,681)	$3.36	June 5, 2035	136,681	Acquired
June 3, 2024	RLAY	Stock Option (Right to Buy)	Common Stock (102,225)	$6.79	June 2, 2034	102,225	Acquired
May 31, 2023	RLAY	Stock Option (Right to Buy)	Common Stock (66,055)	$11.14	May 30, 2033	66,055	Acquired
July 25, 2022	RLAY	Stock Option (Right to Buy)	Common Stock (71,881)	$20.46	July 24, 2032	71,881	Acquired

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

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

Date	Ticker	Security	Shares	Ownership
Jan. 30, 2025	MAZE	Common Stock	103,723	Direct
Jan. 30, 2025	MAZE	Stock Option (Right to Buy)→ Common Stock (20,744)	20,744	Direct
Jan. 30, 2025	MAZE	Stock Option (Right to Buy)→ Common Stock (9,086)	9,086	Direct