Ardsley Advisory Partners LP

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Assets, Funds, Holdings

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Ardsley Advisory Partners LP
CRD #301116
SEC #801-114966
CIK #0000900529
AUM $1.6 B (2026-05-06)
Employees 11 (64% Investors, 0% Brokers)
Phone203-564-4200
Address105 Rowayton Ave
Norwalk, CT 06853
Source [IAPD] [EDGAR] [Website]
Total AUM ($M)
17001360102068034002010201520212027
Sector Form 13F Holdings Value ($M)
Sandisk Corp 56.7
Advanced Micro Devices Inc 54.0
Sezzle Inc 36.9
Ikonics Corp 23.7
BrightSpring Health Services Inc 22.7
eBay Inc 22.3
Sunrun Inc 21.4
JDS Uniphase Corp /CA/ 18.6
ARM Holdings PLC /UK 16.6
Shoals Technologies Group Inc 16.5
View All
Holdings by Sector ($M)
1300104078052026002011201620212027
Type Form D Funds Date Sold ($M) AUM ($M)
HF Ardsley World Information Technology Offshore Fund Ltd [2026-02-24] 76.1 7.6
HF Ardsley Ridgecrest Partners Fund LP [2019-01-23] 30.3 25.8
HF Ardsley Conway Fund LP [2018-03-22] 14.0 5.3
HF Ardsley Duckdive Fund LP [2017-03-16] 17.1 25.6
HF Ardsley Partners Advanced Healthcare Fund LP [2015-03-17] 285.6 332.4
HF Ardsley Healthcare Fund LP [2013-03-25] 23.4 10.3
HF Ardsley Partners Fund II LP [2012-02-14] 54.3
HF Ardsley Sustainable Opportunities Fund LP [2012-02-14] 98.2 309.6
HF Ardsley World Information Technology Fund LP [2012-02-14] 76.1 108.5
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 0 0.0
(e) Business development companies 0 0.0
(f) Pooled investment vehicles 9 1,426.2
(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 2 209.5
Total 11 1,635.7
By Discretionary
Discretionary 11 1,635.7
Non-Discretionary 0 0.0
Total 11 1,635.7
By Non-United States Persons
Non-United States Persons 738.1
United States Persons 897.6
Total 11 1,635.7
Form D Directors Role # Filings # Firms 2011 - 2026
Philip Hempleman 8 3
Ardsley Partners I GP LLC 8 3
Spencer Hempleman 8 3
Ardsley Advisory Partners LP 8 3
Ardsley Partners I 3 3
Ardsley Advisory Partners 3 2
Ardsley Advisory 2 2
Ardsley Partners I Ardsley Partners I 2 2
EDGAR Form CIK 2011 - 2026
13F-HR [0000900529]
3 [0000900529]
4 [0000900529]
SC 13D [0000900529]
SC 13G [0000900529]
Form 13D/13G Filer Form 13D/13G Subject Filed
Ardsley Advisory Partners LP Aspire Biopharma Holdings Inc [2026-02-12]
Ardsley Advisory Partners LP Bioceres CROP Solutions Corp [2023-01-25]
Ardsley Advisory Partners LP Stronghold Digital Mining Inc [2022-02-08]
Ardsley Advisory Partners LP Marrone Bio Innovations Inc [2022-02-08]
Ardsley Advisory Partners LP Cantaloupe Inc [2022-02-08]
Ardsley Advisory Partners LP USA Technologies Inc [2020-02-07]
Ardsley Advisory Partners LP Just Energy Group Inc [2020-02-07]
Ardsley Advisory Partners LP Sunopta Inc [2019-02-12]
Ardsley Advisory Partners Marrone Bio Innovations Inc [2018-02-07]
Ardsley Advisory Partners American Superconductor Corp /DE/ [2017-05-08]
View All
Form 3/4/5 Subject 2011 - 2026
Ardsley Partners Renewable Energy Fund, L.P.
Ardsley Advisory Partners GP LLC
Ardsley Partners Advanced Healthcare Fund, L.P.
Ardsley Partners I GP LLC
Marrone Bio Innovations Inc
Ardsley Advisory Partners LP
Hempleman Philip J
Ardsley Partners Fund II, L.P.
Ardsley Ridgecrest Partners Fund, L.P.
Ardsley Duckdive Fund, L.P.
View All
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