13F Filings History of ARDSLEY ADVISORY PARTNERS LP
- Latest 13F filing
- Q2 2026 - 13 Jul 2026
- Latest reported 13F value
- $921,068,363
- Largest 13F holdings
-
SNDK AMD SEZL WULF BTSG EBAY RUN VIAV P ARM SHLS AMZN
+8 more
UTHR TEVA GOOG PANW TWLO PRIM AAPL ZM - Form 13F summary
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- 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 signature
- Steven Napoli - Partner
- Manager location
- Norwalk, CT
13F snapshot
Latest parsed holdings, value, and filing-period context.
1 signal
Manager
Names, identifiers, and filing context for this profile.
2 identity fields
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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 |