Ardsley Advisory Partners LP

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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
Phone	203-564-4200
Address	105 Rowayton Ave Norwalk, CT 06853
Source	[IAPD] [EDGAR] [Website]

Total AUM ($M) Copy

CIK	Period
0000900529	2026-06-30 2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31

CIK

Period

0000900529

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
	Amazon Com Inc	16.4
	United Therapeutics Corp	16.3
	Teva Pharmaceutical Industries Ltd	15.8
	Alphabet Inc	15.3
	Palo Alto Networks Inc	14.6
	Twilio Inc	14.2
	Zoom Video Communications Inc	13.6
	Primoris Services Corp	13.4
	Apple Inc	13.0
	Modine Manufacturing Co	12.0
	Nanometrics Inc	11.9
	Synnex Corp	11.6
	Brookdale Senior Living Inc	11.1
	Enphase Energy Inc	10.8
	Allegiant Travel Co	10.6
	Okta Inc	10.4
	Equinix Inc	10.4
	HUT 8 Corp	10.4



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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
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
Clients	1 (45 non-US)
Serves	Institutional
Fund Types	Hedge Fund
LEI	549300GQR5ULS7W2C050

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

Ardsley Advisory Partners LP

Assets, Funds, Holdings