Ardsley Advisory Partners LP

-

Assets, Funds, Holdings

Home | Sign Up | Log In
New Features
Latest Fund Raises
Related People
Fund Service Providers
Startup & Company Raises
List of Funds
Boston Firms
Boston Hedge Funds
Cornell Alumni Firms
CalPERS Portfolio
NYSCRF Portfolio
User Guide
Regulatory AUM vs AUM
LP Portfolios
Related Firms
Build a Portfolio
Comprehensive Search
Keyboard
Ardsley Advisory Partners LP
CRD #301116
SEC #801-114966
CIK #0000900529
AUM 1,635.7 M (2026-05-06)
Employees 11 (64% Investors, 0% Brokers)
Fees
Minimum
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 ($M)
1300104078052026002011201620212027
Type Form D Funds Date Sold AUM
HF Ardsley World Information Technology Offshore Fund Ltd [2026-02-24] 76.1 M 7.6 M
Filed 2025-11-17 (D/A) · Exemption 506(b), 3(c), 3(c)(1) · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose
HF Ardsley Ridgecrest Partners Fund LP [2019-01-23] 30.3 M 25.8 M
Filed 2024-11-18 (D/A) · Exemption 506(b), 3(c), 3(c)(1) · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose
HF Ardsley Conway Fund LP [2018-03-22] 14.0 M 5.3 M
Filed 2019-11-21 (D/A) · Exemption 506(b), 3(c), 3(c)(1) · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose
HF Ardsley Duckdive Fund LP [2017-03-16] 17.1 M 25.6 M
Filed 2025-11-17 (D/A) · Exemption 506(b), 3(c), 3(c)(1) · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose
HF Ardsley Partners Advanced Healthcare Fund LP [2015-03-17] 285.6 M 332.4 M
Filed 2025-11-17 (D/A) · Exemption 506(b), 3(c), 3(c)(1) · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose
HF Ardsley Healthcare Fund LP [2013-03-25] 23.4 M 10.3 M
Filed 2020-11-20 (D/A) · Exemption 506(b), 3(c), 3(c)(1) · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose
HF Ardsley Partners Fund II LP [2012-02-14] 54.3 M
HF Ardsley Sustainable Opportunities Fund LP [2012-02-14] 98.2 M 309.6 M
Filed 2025-11-17 (D/A) · Exemption 506(b), 3(c), 3(c)(7) · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose
HF Ardsley World Information Technology Fund LP [2012-02-14] 76.1 M 108.5 M
Filed 2025-11-17 (D/A) · Exemption 506(b), 3(c), 3(c)(1) · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose
AUM Breakdown Accounts AUM ($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 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 Executive Officer 8 3
Ardsley Partners I GP LLC Executive Officer 8 3
Spencer Hempleman Executive Officer 8 3
Ardsley Advisory Partners LP Promoter 8 3
Ardsley Partners I Executive Officer 3 3
Ardsley Advisory Partners Promoter 3 2
Ardsley Advisory Promoter 2 2
Ardsley Partners I Ardsley Partners I Executive Officer 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
Firm Profile (Form ADV)
Discretionary AUM$0.7B
Clients1 (45 non-US)
ServesInstitutional
Fund TypesHedge Fund
LEI549300GQR5ULS7W2C050
Form 3/4/5 Subject 2011 - 2026
Ardsley Partners Renewable Energy Fund LP
Ardsley Advisory Partners GP LLC
Ardsley Partners Advanced Healthcare Fund LP
Ardsley Partners I GP LLC
Marrone Bio Innovations Inc
Ardsley Advisory Partners LP
Hempleman Philip J
Ardsley Partners Fund II LP
Ardsley Ridgecrest Partners Fund LP
Ardsley Duckdive Fund LP
View All
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Marrone Bio Innovations Inc MBII
Warrant · derivative
2021-11-11 Option exercise 618,014 $0.75 463,510
Marrone Bio Innovations Inc MBII
Common Stock
2021-11-11 Option exercise 618,014 $0.75 463,510
Marrone Bio Innovations Inc MBII
Common Stock
2021-03-12 Option exercise 741,617 $0.75 556,213
Marrone Bio Innovations Inc MBII
Warrant · derivative
2021-03-12 Option exercise 741,617 $0.75 556,213
Marrone Bio Innovations Inc MBII
Common Stock
2020-12-31 Other 50,000 $1.26 63,000
Marrone Bio Innovations Inc MBII
Common Stock
2020-12-31 Other 50,000 $1.26 63,000
Marrone Bio Innovations Inc MBII
Common Stock
2020-12-14 Option exercise 1,648,037 $0.75 1,236,028
Marrone Bio Innovations Inc MBII
Warrant · derivative
2020-12-14 Option exercise 1,648,037 $0.75 1,236,028
Marrone Bio Innovations Inc MBII
Common Stock
2020-09-15 Option exercise 343,341
Marrone Bio Innovations Inc MBII
Warrant · derivative
2020-09-15 Option exercise 343,341 $0.75 257,506
SunOpta Inc STKL
Common Stock
2020-08-18 Sell 2,300,000 $6.00 13,800,000
SunOpta Inc STKL
Common Stock
2020-08-18 Sell 1,000,000 $6.00 6,000,000
SunOpta Inc STKL
Common Stock
2020-08-06 Sell 12,500 $6.77 84,625
SunOpta Inc STKL
Common Stock
2020-08-05 Sell 50,000 $6.31 315,500
SunOpta Inc STKL
Common Stock
2020-08-05 Sell 25,000 $6.56 164,000
SunOpta Inc STKL
Common Stock
2020-08-05 Sell 25,000 $7.10 177,500
Marrone Bio Innovations Inc MBII
Common Stock
2020-05-01 Option exercise 429,176
Marrone Bio Innovations Inc MBII
Warrant · derivative
2020-05-01 Option exercise 429,176
Marrone Bio Innovations Inc MBII
Warrant · derivative
2020-04-29 Grant 741,617
Marrone Bio Innovations Inc MBII
Warrant · derivative
2020-04-29 Grant 1,648,037
showing 20 of 83 most recent transactions
Comparable Firms State AUM
Deltroit Asset Management UK LLP
1,655.8 M
Richbrook Advisors LP
NY 1,652.9 M
Bain Capital Partnership Strategies LP
MA 1,652.2 M
Park Presidio Capital LLC
CA 1,647.5 M
Tree Line Advisors Hong Kong Ltd
1,638.0 M
Zweig-Dimenna Associates LLC
NY 1,633.5 M
Shellback Capital LP
MA 1,629.0 M
Columbus Hill Capital Management LP
NJ 1,614.4 M
Hayfin Capital Management LLC
NY 1,614.0 M
Teewinot Capital Advisers LLC
CT 1,611.9 M
Terms | Privacy | Providers | Companies | Guide
tony@aum13f.com