Oppenheimer Activist Partners LP

Oppenheimer Activist Partners LP is reported as a hedge fund in Form ADV private-fund disclosures. The adviser is Oppenheimer & Co. Inc., based in New York, New York, United States.

Event-driven Under $25M Under $250K minimum

$15.8Mgross assets

$100Kminimum

22owners

3(c)(7)exemption

Disclosure fields

Fund facts

SEC private fund ID805-3032769961

Reference ID19705

JurisdictionDelaware, United States

Fund of fundsYes

Master fundNo

Feeder fundNo

Non-US ownership0%

Assets valued100%

Annual auditYes

GAAPYes

Source periodJanuary 2026

Date submitted01/05/2026 02:51:03 PM

Adviser

Oppenheimer & Co. Inc.

TypeRegistered investment adviser

SEC number801-887

CRD249

Regulatory AUM$32.4B

Compliance signals

Exempt from registration Sales limitation not marked No prime broker flag Custodians reported

Service providers

Reported counterparties

General partners

Opco Activist LLC

Auditors

BDO USA LLP

Custodians

OPPENHEIMER & CO. INC.

Administrators

SS & C