First seen by DFX
Sep 12, 2026
date not stated
Ardsley Partners found on the SEC adviser roster (client_description)
Ardsley Advisory Partners LP reported $784,359,571 across 151 13(f) positions for the quarter ended 2026-03-31
Ardsley Advisory Partners LP exited ARM Holdings Plc (was $9,291,350, 85,000 shares)
Ardsley Advisory Partners LP exited Argenx Se (was $20,182,800, 24,000 shares)
Ardsley Advisory Partners LP exited First Solar Inc (was $2,612,300, 10,000 shares)
Ardsley Advisory Partners LP exited Baker Hughes Company (was $3,870,900, 85,000 shares)
Ardsley Advisory Partners LP exited Daqo New Energy Corp (was $2,507,500, 85,000 shares)
Ardsley Advisory Partners LP exited Ishares Tr (was $7,393,500, 450,000 shares)
Ardsley Advisory Partners LP exited Deckers Outdoor Corp (was $3,628,450, 35,000 shares)
Ardsley Advisory Partners LP exited Dell Technologies Inc (was $4,531,680, 36,000 shares)
Ardsley Advisory Partners LP exited Netflix Inc (was $2,156,480, 23,000 shares)
Ardsley Advisory Partners LP exited T1 Energy Inc (was $3,096,900, 465,000 shares)
Ardsley Advisory Partners LP exited Halliburton Co (was $2,826,000, 100,000 shares)
Ardsley Advisory Partners LP exited Infosys Ltd (was $2,494,800, 140,000 shares)
Ardsley Advisory Partners LP exited Shopify Inc (was $12,621,616, 78,400 shares)
Ardsley Advisory Partners LP exited Invesco Exch Traded Fd Tr II (was $4,912,000, 100,000 shares)
Ardsley Advisory Partners LP exited Ishares Silver Tr (was $18,989,150, 295,000 shares)
Ardsley Advisory Partners LP exited Ishares Tr (was $9,787,400, 140,000 shares)
Ardsley Advisory Partners LP exited Kraneshares Trust (was $3,405,000, 100,000 shares)
Ardsley Advisory Partners LP exited Soluna Holdings Inc (was $2,018,250, 1,725,000 shares)
Ardsley Advisory Partners LP exited Mercadolibre Inc (was $2,417,112, 1,200 shares)
Ardsley Advisory Partners LP exited Mongodb Inc (was $8,694,250, 20,750 shares)
Ardsley Advisory Partners LP exited Blue Owl Capital Inc (was $4,855,500, 325,000 shares)
Ardsley Advisory Partners LP exited Nextera Energy Inc (was $2,007,000, 25,000 shares)
Ardsley Advisory Partners LP exited Nokia Corp (was $3,667,000, 560,000 shares)
Ardsley Advisory Partners LP exited Onto Innovation Inc (was $2,367,900, 15,000 shares)
Ardsley Advisory Partners LP exited Oracle Corp (was $9,355,680, 48,000 shares)
Ardsley Advisory Partners LP exited Palo Alto Networks Inc (was $7,368,000, 40,000 shares)
Ardsley Advisory Partners LP exited Salesforce Inc (was $8,733,120, 33,000 shares)
Ardsley Advisory Partners LP exited Sanmina Corporation (was $3,001,400, 20,000 shares)
Ardsley Advisory Partners LP exited Airbnb Inc (was $3,528,720, 26,000 shares)
Ardsley Advisory Partners LP exited Tenet Healthcare Corp (was $4,968,000, 25,000 shares)
Ardsley Advisory Partners LP exited The Trade Desk Inc (was $6,263,400, 165,000 shares)
Ardsley Advisory Partners LP exited Ferroglobe Plc (was $9,836,800, 2,120,000 shares)
Ardsley Advisory Partners LP exited Jazz Pharmaceuticals Plc (was $8,500,000, 50,000 shares)
Ardsley Advisory Partners LP exited TE Connectivity Plc (was $16,721,985, 73,500 shares)
Ardsley Advisory Partners LP exited NXP Semiconductors N V (was $3,147,370, 14,500 shares)
Ardsley Advisory Partners LP opened a $3,829,250 position in Adma Biologics Inc (425,000 shares)
Ardsley Advisory Partners LP reduced Advanced Energy Inds 73,000 -> 5,000 shares ($15,284,010 -> $1,613,550)
Ardsley Advisory Partners LP exited Rh (was $5,374,500, 30,000 shares)