Calamos Advisors
ZS icon

Calamos Advisors’s Zscaler ZS Stock Holding History

Calamos Advisors’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
2025
Q1 		– Sell
-4,819
Closed -$869K – 988
2024
Q4 		$869K Buy
+4,819
New +$933K ﹤0.01% 684
2024
Q2 		– Sell
-6,758
Closed -$1.3M – 1002
2024
Q1 		$1.3M Sell
6,758
-2,873
-30% -$643K 0.01% 619
2023
Q4 		$2.13M Buy
+9,631
New +$1.78M 0.01% 600
2023
Q2 		– Sell
-2,375
Closed -$277K – 1073
2023
Q1 		$277K Hold
2,375
– – ﹤0.01% 875
2022
Q4 		$266K Sell
2,375
-1,318
-36% -$179K ﹤0.01% 933
2022
Q3 		$607K Buy
3,693
+751
+26% +$123K ﹤0.01% 999
2022
Q2 		$440K Sell
2,942
-8,498
-74% -$1.5M ﹤0.01% 1086
2022
Q1 		$2.76M Sell
11,440
-6,660
-37% -$1.64M 0.01% 854
2021
Q4 		$5.82M Sell
18,100
-4,620
-20% -$1.45M 0.02% 650
2021
Q3 		$5.96M Buy
22,720
+1,719
+8% +$432K 0.03% 561
2021
Q2 		$4.54M Buy
21,001
+7,462
+55% +$1.42M 0.02% 592
2021
Q1 		$2.32M Sell
13,539
-4,158
-23% -$826K 0.01% 678
2020
Q4 		$3.53M Sell
17,697
-4,382
-20% -$697K 0.02% 555
2020
Q3 		$3.11M Buy
22,079
+15,179
+220% +$1.97M 0.02% 532
2020
Q2 		$756K Buy
+6,900
New +$573K 0.01% 656
2019
Q4 		– Sell
-15,911
Closed -$752K – 827
2019
Q3 		$752K Sell
15,911
-8,534
-35% -$615K ﹤0.01% 666
2019
Q2 		$1.87M Buy
+24,445
New +$1.74M 0.01% 615

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
UBS AM
UBS AM Chicago, Illinois $550B AUM 43.33% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 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
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Deutsche Bank
Deutsche Bank Frankfurt Am Main Ge, Germany $344B AUM 42.99% 1-Year Est. Return

Calamos Advisors's ZS Position: Q1 2025 in Review

Calamos Advisors sold out of Zscaler (ZS) in Q1 2025, closing a stake of 4,819 shares — an estimated $869K sold.

Calamos Advisors first reported a position in ZS in Q2 2019 and held it in 17 quarters. The position peaked at $5.96M in Q3 2021. 769 funds tracked by Wall St. Rank hold ZS as of Q1 2025.

  • Calamos Advisors reported no remaining Zscaler position as of Q1 2025 after selling out during the quarter.
  • Calamos Advisors sold 4,819 Zscaler shares in Q1 2025, an estimated $869K.
  • Calamos Advisors first reported a position in Zscaler in Q2 2019 and held it in 17 quarters.
  • Calamos Advisors's Zscaler position peaked at $5.96M in Q3 2021.
  • 769 funds tracked by Wall St. Rank held Zscaler as of Q1 2025.

Based on Calamos Advisors's 13F filing for Q1 2025, filed 29 Apr 2025.