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Castleark Management’s Palo Alto Networks PANW Stock Holding History

Castleark Management’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
-11,185
Closed -$2.06M – 327
2025
Q4 		$2.06M Buy
11,185
+5,040
+82% +$1.02M 0.06% 201
2025
Q3 		$1.25M Buy
+6,145
New +$1.18M 0.04% 215
2022
Q3 		– Sell
-4,320
Closed -$356K – 319
2022
Q2 		$356K Hold
4,320
– – 0.02% 235
2022
Q1 		$448K Hold
4,320
– – 0.02% 249
2021
Q4 		$401K Sell
4,320
-2,040
-32% -$176K 0.01% 273
2021
Q3 		$508K Buy
6,360
+1,200
+23% +$84.3K 0.02% 251
2021
Q2 		$319K Buy
+5,160
New +$306K 0.01% 285
2017
Q4 		– Sell
-471,762
Closed -$11.3M – 429
2017
Q3 		$11.3M Sell
471,762
-750,468
-61% -$17.1M 0.36% 96
2017
Q2 		$27.3M Sell
1,222,230
-51,180
-4% -$1.03M 0.89% 28
2017
Q1 		$23.9M Sell
1,273,410
-519,678
-29% -$11.6M 0.75% 35
2016
Q4 		$37.4M Buy
1,793,088
+374,868
+26% +$8.98M 1.19% 15
2016
Q3 		$37.7M Sell
1,418,220
-71,340
-5% -$1.63M 1.14% 23
2016
Q2 		$30.4M Buy
1,489,560
+102,840
+7% +$2.38M 0.97% 29
2016
Q1 		$37.7M Sell
1,386,720
-293,160
-17% -$7.21M 1.18% 24
2015
Q4 		$49.3M Sell
1,679,880
-4,320
-0.3% -$125K 1.48% 14
2015
Q3 		$48.3M Sell
1,684,200
-97,986
-5% -$2.89M 1.55% 12
2015
Q2 		$51.9M Sell
1,782,186
-64,920
-4% -$1.73M 1.39% 14
2015
Q1 		$45M Sell
1,847,106
-482,094
-21% -$10.8M 1.08% 18
2014
Q4 		$47.6M Buy
2,329,200
+1,496,910
+180% +$27.6M 1.23% 22
2014
Q3 		$9.52M Sell
832,290
-1,193,190
-59% -$17.1M 0.27% 71
2014
Q2 		$28.3M Buy
2,025,480
+1,193,190
+143% +$13.9M 0.78% 40
2014
Q1 		$9.52M Sell
832,290
-801,600
-49% -$9.09M 0.27% 71
2013
Q4 		$15.7M Sell
1,633,890
-634,050
-28% -$5.03M 0.45% 43
2013
Q3 		$37.1M Sell
2,267,940
-520,260
-19% -$4.1M 1.05% 31
2013
Q2 		$19.6M Buy
+2,788,200
New +$23.2M 0.65% 40

Other funds holding PANW

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return

Castleark Management's PANW Position: Q1 2026 in Review

Castleark Management sold out of Palo Alto Networks (PANW) in Q1 2026, closing a stake of 11,185 shares — an estimated $2.06M sold.

Castleark Management first reported a position in PANW in Q2 2013 and held it in 25 quarters. The position peaked at $51.9M in Q2 2015. 2,460 funds tracked by Wall St. Rank hold PANW as of Q1 2026.

  • Castleark Management reported no remaining Palo Alto Networks position as of Q1 2026 after selling out during the quarter.
  • Castleark Management sold 11,185 Palo Alto Networks shares in Q1 2026, an estimated $2.06M.
  • Castleark Management first reported a position in Palo Alto Networks in Q2 2013 and held it in 25 quarters.
  • Castleark Management's Palo Alto Networks position peaked at $51.9M in Q2 2015.
  • 2,460 funds tracked by Wall St. Rank held Palo Alto Networks as of Q1 2026.

Based on Castleark Management's 13F filing for Q1 2026, filed 15 May 2026.