PENBROOK MANAGEMENT LLC

PENBROOK MANAGEMENT LLC of NEW YORK, NY is an SEC-registered investment adviser (CRD 127269). Regulatory assets under management: $175.4M. This firm reports disciplinary history on Form ADV.

Registration

CRD: 127269
SEC file number: 801-63460
Type: Registered investment adviser
Location: 880 THIRD AVENUE, 16TH FLOOR, NEW YORK, NY, 10022
Phone: 212-792-6952
Latest filing: 2026-05-28
Regulatory AUM: $175.4M
Discretionary AUM: $175.4M
Clients: 4
Accounts: 168

Business model

Compensation: % of AUM.

Clients served: Individuals, High net worth, Pooled vehicles, Pensions, Investment cos.

Officers, owners & control persons (7)

Name	Role	Location
Robert Stephen Anderson	MANAGING MEMBER	—
Barbara Ann Dicostanzo	MANAGING MEMBER, CHIEF COMPLIANCE OFFICER	—
ANDERSON ROBERT STEPHEN	MANAGING MEMBER	—
KAPLAN RALPH MOSS	MANAGING MEMBER	—
BURKE BARBARA ANN	MANAGING MEMBER, CHIEF COMPLIANCE OFFICER	—
DICOSTANZO BARBARA ANN BURKE	MANAGING MEMBER, CHIEF COMPLIANCE OFFICER	—
DICOSTANZO BARBARA ANN	MANAGING MEMBER, CHIEF COMPLIANCE OFFICER	—

Disclosures (5)

Initiated	Type	Allegations	Status	Amount
2026-04-15	civil	CIVIL ACTION ALLEGING BREACH OF FIDUCIARY DUTY AND IMPROPER HANDLING OF TRUST ASSETS IN CONNECTION WITH INVESTMENT MANAGEMENT ACTIVITIES, INCLUDING ALLEGATIONS RELATED TO INVESTMENT DECISIONS AND FEES.	Pending	—
—	regulatory	—	—	—

Private funds (1)

Fund	Type	Formed	Owners	Gross asset value	Min investment
ANKAP PARTNERS, L.P.	Hedge Fund	Delaware	12	$9.3M	$250K

Branch offices (4)

City	State	Employees	Phone
—	—	2	212-792-6953
—	—	2	212-792-6953
—	—	1	212-792-6952
—	—	1	212-792-6952