RA Capital Nexus Fund III, L.P.

CIK 1883840 · last filed 2026-02-20

RA Capital Nexus Fund III, L.P. is a corporate insider who has filed 5 SEC Form 4 insider transactions across 3 companies since 2023. The most recent filing, for MLYS, was dated Feb 20, 2026. Across all open-market trades the lifetime net is +$11.4M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $430.8M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

Disclosed Exposure

$430.81M

Companies

3

Total Filings

5

Lifetime Open-Market Net

$11.42M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.

Symbol	Role	Shares	Price	Disclosed Exposure	Lifetime OM Net	Filings	Latest Filed
MLYS	Director	5,456,521	$23.62	$128.88M	$100.00M	3	2026-02-20
EVMN	Director	2,710,293	$19.83	$53.75M	$0	1	2026-02-17
SION	Director	6,909,249	$35.92	$248.18M	-$88.58M	1	2025-10-28

Recent Filings

5 filings

Form 4 transactions across all companies, newest first.

Filed	Symbol	Action	Net Shares	Net $	Link
2026-02-20	MLYS	Grant (A)	+31,000	$0	EDGAR
2026-02-17	EVMN	Grant (A)	+179,340	$5.00M	EDGAR
2025-10-28	SION	Sell (S)	−2,241,660	-$88.58M	EDGAR
2024-02-14	MLYS	Grant (A)	+8,362,540	$112.89M	EDGAR
2023-02-16	MLYS	Mixed	+15,892,380	$100.00M	EDGAR

Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.