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Ardsley Advisory Partners’s Zscaler ZS Stock Holding History

Ardsley Advisory Partners’s Portfolio ZS Stock Details ZS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2019
Q4 		– Sell
-45,000
Closed -$2.13M – 188
2019
Q3 		$2.13M Buy
45,000
+37,000
+463% +$2.66M 0.48% 41
2019
Q2 		$613K Buy
+8,000
New +$570K 0.1% 85

Other funds holding ZS

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Ardsley Advisory Partners's ZS Position: Q3 2025 in Review

Ardsley Advisory Partners sold out of Zscaler (ZS) in Q3 2025, closing a stake of 16,000 shares — an estimated $5.02M sold.

Ardsley Advisory Partners first reported a position in ZS in Q4 2018 and held it in 11 quarters. The position peaked at $5.02M in Q2 2025. 909 funds tracked by Wall St. Rank hold ZS as of Q3 2025.

  • Ardsley Advisory Partners reported no remaining Zscaler position as of Q3 2025 after selling out during the quarter.
  • Ardsley Advisory Partners sold 16,000 Zscaler shares in Q3 2025, an estimated $5.02M.
  • Ardsley Advisory Partners first reported a position in Zscaler in Q4 2018 and held it in 11 quarters.
  • Ardsley Advisory Partners's Zscaler position peaked at $5.02M in Q2 2025.
  • 909 funds tracked by Wall St. Rank held Zscaler as of Q3 2025.

Based on Ardsley Advisory Partners's 13F filing for Q3 2025, filed 14 Nov 2025.