Ardsley Advisory Partners’s Palo Alto Networks PANW Stock Holding History

Ardsley Advisory Partners’s Portfolio PANW Stock Details PANW Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-29,000	Closed	-$5.34M	–	193
2025 Q4	$5.34M	Buy	+29,000	New	+$5.85M	0.59%	56

Other funds holding PANW

Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return

Robeco Institutional Asset Management Rotterdam, Netherlands $81.4B AUM 40.71% 1-Year Est. Return

ATO

Alecta Tjanstepension Omsesidigt Stockholm, Sweden $23.8B AUM 34.25% 1-Year Est. Return

Quilter Plc London, United Kingdom $6.65B AUM 37.83% 1-Year Est. Return

Assenagon Asset Management Senningerberg, Luxembourg $80.2B AUM 50.57% 1-Year Est. Return

Rathbones Group Liverpool, United Kingdom $27.1B AUM 20.2% 1-Year Est. Return

ECSS

Eurizon Capital SGR SpA Milan $37.3B AUM

HIIFS

Harel Insurance Investments & Financial Services Ramat Gan, Israel $20.6B AUM 59.59% 1-Year Est. Return

New York State Teachers Retirement System (NYSTRS) Albany, New York $54.2B AUM 43.77% 1-Year Est. Return

MMC

Mizuho Markets Cayman Grand Cayman, Cayman Islands $2.67B AUM 103.47% 1-Year Est. Return

Ardsley Advisory Partners's PANW Position: Q2 2026 in Review

Ardsley Advisory Partners opened a new position in Palo Alto Networks (PANW) in Q2 2026: 43,000 shares worth $14.6M. The stake represents 1.52% of the portfolio and ranks #16 among its holdings. This is a return to the name: Ardsley Advisory Partners previously reported a position in PANW as recently as Q4 2025.

Ardsley Advisory Partners first reported a position in PANW in Q3 2015 and has held it in 27 quarters since. 1,150 funds tracked by Wall St. Rank hold PANW as of Q2 2026.

Ardsley Advisory Partners held 43,000 shares of Palo Alto Networks worth $14.6M as of Q2 2026.
Palo Alto Networks was a new Ardsley Advisory Partners position in Q2 2026.
Palo Alto Networks made up 1.52% of Ardsley Advisory Partners's portfolio in Q2 2026, its #16 holding.
Ardsley Advisory Partners first reported a position in Palo Alto Networks in Q3 2015 and has held it in 27 quarters since.
1,150 funds tracked by Wall St. Rank held Palo Alto Networks as of Q2 2026.

Based on Ardsley Advisory Partners's 13F filing for Q2 2026, filed 13 Jul 2026.