ACORN BIOVENTURES, L.P. → Karyopharm Therapeutics Inc. KPTI

Stake: — Shares: — CUSIP: 48576U205 Class: Common Stock, $0.0001 Par Value

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)

0 transactions

0 buys · 0 sales · 0 awards/exercises

Issuer Cluster

3 13D/G filings on this issuer

2 other filings besides this one

Filer Track Record

3 filings by this filer

2 other filings in the data moat

Short Interest · settle 2026-09-30

DTC 4.79

6,056,162 shares short · -23.0% vs prior

Other 13D/G Filings on Karyopharm Therapeutics Inc.

Filed	Form	Filer	Stake	Shares
2026-09-25	SCHEDULE 13G/A	ACORN BIOVENTURES, L.P.	—	—	view →
2026-09-04	SCHEDULE 13G	INTEGRATED CORE STRATEGIES (US) LLC	—	—	view →

Other Filings by ACORN BIOVENTURES, L.P.

Filed	Form	Issuer	Stake	Shares
2026-09-25	SCHEDULE 13G/A	Karyopharm Therapeutics Inc.	—	—	view →
2026-07-22	SCHEDULE 13G	enGene Therapeutics Inc.	—	—	view →

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