ARCH Venture Fund VIII Overage, L.P.

CIK 1617237 · last filed 2023-09-20

ARCH Venture Fund VIII Overage, L.P. is a corporate insider who has filed 4 SEC Form 4 insider transactions across 3 companies since 2017. The most recent filing, for NMRA, was dated Sep 20, 2023. Across all open-market trades the lifetime net is +$335.4M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $7.8M 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

$7.80M

Companies

3

Total Filings

4

Lifetime Open-Market Net

$335.43M

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
NMRA	10%+ Owner	684,167	$1.68	$1.15M	$255.00M	1	2023-09-20
Codiak BioSciences, Inc. (CDAK) Delisted	10%+ Owner	8,854,098	$0.06	$504.7K	$52.50M	1	2022-09-15
QTRX	10%+ Owner	1,906,335	$3.49	$6.65M	$27.93M	2	2020-11-24

Recent Filings

4 filings

Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.

Filed	Symbol	Action	Net Shares	Net $	Link
2023-09-20	NMRA	Mixed	+189,247,040	$255.00M	EDGAR
2022-09-15	Codiak BioSciences, Inc. (CDAK) Delisted	Buy (P)	+35,000,000	$52.50M	EDGAR
2020-11-24	QTRX	Other (J)	−5,779,599	$0	EDGAR
2017-12-13	QTRX	Mixed	+27,647,795	$27.93M	EDGAR

Form 4 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.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.