13D Management LLC

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Assets, Funds, Holdings

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13D Management LLC
CRD #154009
SEC #801-130908
CIK #0001600133
AUM 99.4 M (2026-03-25)
Employees 8 (75% Investors, 12% Brokers)
Phone212-223-2282
Address152 West 57th Street
New York, NY 10019
Source [IAPD] [EDGAR] [Website] [LinkedIn]
Total AUM ($M)
4003202401608002008201420202027
Sector Form 13F Holdings Value ($M)
Twilio Inc 7.6
Viasat Inc 7.5
Acadia Healthcare Company Inc 6.9
Pearson PLC 6.0
Autoliv Inc 5.9
Charles River Laboratories International Inc 4.5
Mercury Computer Systems Inc 4.4
Exelixis Inc 4.3
Greatbatch Inc 4.1
Etsy Inc 3.6
View All
Holdings by Sector ($M)
4503602701809002013201720222027
Type Form D Funds Date Sold AUM
HF 13D Activist Fund LP [2020-03-30] 56.6 M 14.5 M
Filed 2025-01-31 (D/A) · Exemption 506(b), 3(c), 3(c)(7) · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose
AUM Breakdown Accounts AUM ($M)
By Client Type
(a) Individuals (other than high net worth individuals) 0 0.0
(b) Individuals (high net worth individuals) 0 0.0
(c) Banking or thrift institutions 0 0.0
(d) Investment companies 1 99.4
(e) Business development companies 0 0.0
(f) Pooled investment vehicles 0 0.0
(g) Pension and profit sharing plans 0 0.0
(h) Charitable organizations 0 0.0
(i) State or municipal government entities 0 0.0
(j) Other investment advisers 0 0.0
(k) Insurance companies 0 0.0
(l) Sovereign wealth funds and foreign official institutions 0 0.0
(m) Corporations or other businesses not listed above 0 0.0
(n) Other 0 0.0
Total 1 99.4
By Discretionary
Discretionary 1 99.4
Non-Discretionary 0 0.0
Total 1 99.4
By Non-United States Persons
Non-United States Persons 0.0
United States Persons 99.4
Total 1 99.4
Form D Directors Role # Filings # Firms 2011 - 2026
Kenneth Squire Executive Officer 1 1
EDGAR Form CIK 2011 - 2026
13F-HR [0001600133]
Firm Profile (Form ADV)
Discretionary AUM$0.2B
ServesInstitutional
Fund TypesHedge Fund
LEI984500F0ADD1FB0AC134
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