13F Filings History of ARDSLEY ADVISORY PARTNERS LP

13F snapshot Latest parsed holdings, value, and filing-period context. 1 signal
Form 13F summary
  • ARDSLEY ADVISORY PARTNERS LP Form 13F history summarizes parsed U.S.-listed equity disclosures for this manager.
  • Form 13F is generally due within 45 days after each calendar quarter ends.
  • ARDSLEY ADVISORY PARTNERS LP reported 130 equity holdings with a total reported market value of $921,068,363 for Q2 2026. Top reported holdings included SNDK, AMD, SEZL, WULF, and BTSG.
Manager Names, identifiers, and filing context for this profile. 2 identity fields
Manager signature
Steven Napoli - Partner
Manager location
Norwalk, CT

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Holdings Value

Form 13F evidence

Quarterly portfolio filings

SEC-reported 13F quarters for this filer, ordered by the latest accepted filing.

Latest quarter
Q2 2026
Latest value
$921,068,363
Quarter delta
+$264,656,412
Accepted
13 Jul 2026, 11:33
Rows shown
1-25 of 52
Quarter Holdings SEC-reported value Bought Sold Net Top Holdings Form Type Accepted by SEC
Q2 2026 130 $921,068,363 +$409,724,834 -$368,929,274 +$40,795,560 SNDK, AMD, SEZL, WULF, BTSG 13F-HR 13 Jul 2026, 11:33
Q1 2026 117 $656,411,951 +$281,996,787 -$461,916,331 -$179,919,544 UTHR, AVGO, SNDK, AMZN, ANET 13F-HR 15 May 2026, 08:56
Q4 2025 113 $785,359,975 +$325,239,405 -$264,577,800 +$60,661,605 LLY, FSLR, LITE, AVGO, RUN 13F-HR 17 Feb 2026, 09:25
Q3 2025 99 $652,122,407 +$314,318,915 -$354,953,673 -$40,634,758 FSLR, HUT, RUN, ORCL, AVGO 13F-HR 14 Nov 2025, 10:36
Q2 2025 108 $611,942,986 +$305,096,579 -$219,611,066 +$85,485,513 FLR, NVDA, ANET, ORCL, AVGO 13F-HR 14 Aug 2025, 09:34
Q1 2025 102 $431,733,350 +$207,157,794 -$238,134,879 -$30,977,085 FLR, AVGO, AGI, CLS, OKTA 13F-HR 15 May 2025, 10:16
Q4 2024 101 $516,333,956 +$218,478,476 -$242,370,627 -$23,892,151 CRM, FLR, ITRI, OSCR, INDV 13F-HR 14 Feb 2025, 10:32
Q3 2024 109 $528,474,660 +$201,333,823 -$266,765,880 -$65,432,057 OSCR, ITRI, RUN, FLR, CLS 13F-HR 14 Nov 2024, 10:35
Q2 2024 108 $552,656,926 +$164,839,846 -$300,447,280 -$135,607,434 RUN, FTAI, CLS, ITRI, OSCR 13F-HR 14 Aug 2024, 09:44
Q1 2024 124 $696,077,502 +$328,905,018 -$132,242,101 +$196,662,917 SPY, RUN, CLS, STKL, ITRI 13F-HR 15 May 2024, 10:44
Q4 2023 100 $465,136,128 +$162,784,523 -$141,250,913 +$21,533,610 CLS, STKL, BIOX, HASI, ITRI 13F-HR 14 Feb 2024, 08:54
Q3 2023 90 $369,150,716 +$112,739,880 -$147,964,660 -$35,224,780 CLS, BIOX, STKL, ITRI, RUN 13F-HR 14 Nov 2023, 10:53
Q2 2023 100 $442,967,350 +$147,666,225 -$179,720,548 -$32,054,323 STKL, ITRI, BIOX, FSLR, VST 13F-HR 14 Aug 2023, 08:29
Q1 2023 101 $455,249,975 +$171,412,699 -$123,376,333 +$48,036,366 FSLR, ITRI, STKL, BIOX, DIS 13F-HR 15 May 2023, 09:28
Q4 2022 89 $394,821,462 +$145,864,657 -$125,916,075 +$19,948,582 FSLR, STKL, BIOX, RUN, EVA 13F-HR 14 Feb 2023, 08:35
Q3 2022 72 $376,819,000 +$132,349,632 -$177,464,180 -$45,114,548 STKL, FSLR, RUN, BIOX, AMPS 13F-HR 14 Nov 2022, 13:06
Q2 2022 86 $403,363,000 +$111,165,554 -$138,162,068 -$26,996,514 STKL, CTLP, MBII, RUN, ALT 13F-HR 15 Aug 2022, 11:43
Q1 2022 97 $485,958,000 +$222,508,139 -$110,598,142 +$111,909,997 CTLP, STKL, STAA, MBII, TBT 13F-HR 16 May 2022, 11:48
Q4 2021 82 $423,523,000 +$173,954,092 -$219,226,545 -$45,272,453 CTLP, STKL, DT, SGRY, HZNP 13F-HR 14 Feb 2022, 10:37
Q3 2021 101 $467,210,000 +$137,496,747 -$215,871,387 -$78,374,640 CTLP, DT, HZNP, STKL, AZN 13F-HR 15 Nov 2021, 10:35
Q2 2021 99 $598,329,000 +$255,155,941 -$254,469,575 +$686,366 CTLP, DT, HZNP, STKL, RUN 13F-HR 16 Aug 2021, 11:24
Q1 2021 93 $542,418,000 +$197,994,731 -$185,669,490 +$12,325,241 USAT, STKL, BIDU, DT, ZEN 13F-HR 17 May 2021, 09:54
Q4 2020 101 $509,615,000 +$216,134,170 -$213,126,457 +$3,007,713 STKL, USAT, TMUS, FTAI, AES 13F-HR 16 Feb 2021, 16:22
Q3 2020 126 $410,062,000 +$142,323,241 -$213,640,809 -$71,317,568 STKL, TMUS, EVA, FTAI, BHVN 13F-HR 13 Nov 2020, 16:44
Q2 2020 118 $424,616,000 +$185,796,542 -$111,077,267 +$74,719,275 STKL, MSFT, ABBV, EVA, BHVN 13F-HR 14 Aug 2020, 10:44
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