Ardsley Advisory Partners

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Ardsley Advisory Partners
CRD #160595
SEC #801-73664
CIK #0000900529
AUM
Employees 13 (54% Investors, 0% Brokers)
Phone203-564-4200
Address262 Harbor Drive
Stamford, CT 06902
Source [IAPD] [EDGAR] [Website]
Total AUM ($M)
1300104078052026002001200920172025
Sector Form 13F Holdings Value ($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 Ridgecrest Partners Fund LP [2014-03-28] 30.3 M 26.3 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 Offshore Fund Ltd [2012-02-14] 4.8 M 15.2 M
Filed 2012-03-12 (D/A) · Exemption 506, 3(c)(1) · Minimum $100,000 · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose
HF Ardsley Partners Institutional Fund LP 2012-02-14 198.0 M
HF Ardsley Renewable Energy Offshore Fund Ltd [2012-02-14] 5.0 M 4.7 M
Filed 2012-03-12 (D/A) · Exemption 506, 3(c)(1) · Minimum $100,000 · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose
AUM Breakdown Accounts AUM ($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 7 895.3
(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 7 895.3
By Discretionary
Discretionary 7 895.3
Non-Discretionary 0 0.0
Total 7 895.3
By Non-United States Persons
Non-United States Persons 0.0
United States Persons 895.3
Total 7 895.3
Form D Directors Role # Filings # Firms 2011 - 2026
Neil Glass Director 20 9
Philip Hempleman Executive Officer 8 3
Ardsley Advisory Partners LP Promoter 8 3
Spencer Hempleman Executive Officer 8 3
Ardsley Partners I GP LLC Executive Officer 8 3
Ardsley Partners I Executive Officer 3 3
Willy Weber Director 3 2
Ardsley Advisory Partners Promoter 3 2
Steven Napoli Director 2 1
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$0.7B
ServesInstitutional
Fund TypesHedge Fund
LEI549300GQR5ULS7W2C050
Form 3/4/5 Subject 2011 - 2026
Ardsley Partners Renewable Energy Fund LP
Ardsley Advisory Partners GP LLC
Ardsley Partners Advanced Healthcare Fund LP
Ardsley Partners I GP LLC
Marrone Bio Innovations Inc
Ardsley Advisory Partners LP
Hempleman Philip J
Ardsley Partners Fund II LP
Ardsley Ridgecrest Partners Fund LP
Ardsley Duckdive Fund LP
View All
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
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
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