SCHEDULE 13D/A Filed 2026-04-01 Event 2026-03-30 SEC 0001012975-26-000294 →

ARCH Venture Fund XII, L.P. → Neumora Therapeutics, Inc. NMRA

Stake: 18.70% Shares: 33,847,838 CUSIP: 640979100 Class: Common Stock, $0.0001 par value

Composite Decision Signal · PASS (LOW BASE-RATE EDGE) Conviction Score: 35/100 · Filer 90d Win Rate: 0% · Hist. 90d Edge: -5.2%

Active Schedule 13D filer baseline
High conviction ownership stake (18.7%)
Held by 1 tracked 13F institutional manager
2 NPORT-P mutual funds holding CUSIP

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)

18 transactions

0 buys · 7 sales · 11 awards/exercises

Issuer Cluster

1 13D/G filings on this issuer

0 other filings besides this one

Filer Track Record

3 filings by this filer

2 other filings in the data moat

Short Interest · settle 2026-10-15

DTC 2.32

5,639,597 shares short · -15.7% vs prior

Institutional Consensus · 2025-12-31

Held by elite portfolio managers

1 holder · $6.58M

Point72 Asset Mgmt

Post-Filing Returns · since 2026-03-30 on NMRA

+1 day

+1.0%

+5 days

+9.8%

+30 days

+16.6%

+60 days

-10.4%

+90 days

-10.4%

+180 days

—

Anchor price 1.93 on closest trading day on/after 2026-03-30. Source: Yahoo Finance daily adj_close (split + dividend adjusted).

Form 4 Insider Transactions · last 365d

Date	Insider	Role	Type	Shares	Price	Value
2026-08-19	Aurora Daljit Singh	officer	Option exercise	13,268	$0.72	$10K
2026-08-19	Aurora Daljit Singh	officer	Option exercise	17,732	$0.72	$13K
2026-08-19	Aurora Daljit Singh	officer	Sale	31,000	$1.65	$51K
2026-08-19	Aurora Daljit Singh	officer	Option exercise	30,918	$0.72	$22K
2026-08-19	Aurora Daljit Singh	officer	Sale	30,918	$1.65	$51K
2026-08-18	Aurora Daljit Singh	officer	Option exercise	34,162	$0.72	$25K
2026-08-18	Aurora Daljit Singh	officer	Sale	34,162	$1.58	$54K
2026-08-18	Aurora Daljit Singh	officer	Option exercise	34,987	$0.72	$25K
2026-08-18	Aurora Daljit Singh	officer	Sale	34,987	$1.59	$55K
2026-08-17	Aurora Daljit Singh	officer	Option exercise	40,890	$0.72	$29K
2026-08-17	Aurora Daljit Singh	officer	Option exercise	15,355	$0.72	$11K
2026-08-17	Aurora Daljit Singh	officer	Option exercise	1,424	$0.72	$1K
2026-08-17	Aurora Daljit Singh	officer	Option exercise	1	$0.72	$1
2026-08-17	Aurora Daljit Singh	officer	Sale	57,670	$1.51	$87K
2026-08-17	Aurora Daljit Singh	officer	Sale	34,020	$1.49	$51K
2026-08-17	Aurora Daljit Singh	officer	Option exercise	25,279	$0.72	$18K
2026-08-17	Aurora Daljit Singh	officer	Option exercise	29,737	$0.72	$21K
2026-08-17	Aurora Daljit Singh	officer	Sale	55,016	$1.50	$83K

Other Filings by ARCH Venture Fund XII, L.P.

Filed	Form	Issuer	Stake	Shares
2026-10-26	SCHEDULE 13D	City Therapeutics, Inc.	25.60%	13,692,507	view →
2025-08-11	SCHEDULE	Prime Medicine, Inc. PRME	10.40%	18,587,036	view →

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