CM
CALX icon

Castleark Management’s Calix CALX Stock Holding History

Castleark Management’s Portfolio CALX Stock Details CALX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-52,920
Closed -$2.8M – 302
2025
Q4 		$2.8M Buy
+52,920
New +$3.08M 0.08% 186
2024
Q4 		– Sell
-61,850
Closed -$2.4M – 292
2024
Q3 		$2.4M Buy
+61,850
New +$2.27M 0.1% 166
2023
Q1 		– Sell
-171,400
Closed -$11.7M – 278
2022
Q4 		$11.7M Sell
171,400
-14,020
-8% -$942K 0.61% 36
2022
Q3 		$11.3M Sell
185,420
-4,260
-2% -$228K 0.63% 29
2022
Q2 		$6.48M Buy
+189,680
New +$7.05M 0.35% 57
2020
Q4 		– Sell
-244,623
Closed -$4.35M – 338
2020
Q3 		$4.35M Buy
+244,623
New +$4.62M 0.17% 134
2013
Q4 		– Sell
-550,440
Closed -$5.27M – 323
2013
Q3 		$5.27M Buy
+550,440
New +$6.74M 0.15% 167

Other funds holding CALX

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
AllianceBernstein
AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 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
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
CAM
Congress Asset Management Boston, Massachusetts $16.3B AUM 42.69% 1-Year Est. Return
Westfield Capital Management
Westfield Capital Management Boston, Massachusetts $23.8B AUM 49.45% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Castleark Management's CALX Position: Q1 2026 in Review

Castleark Management sold out of Calix (CALX) in Q1 2026, closing a stake of 52,920 shares — an estimated $2.8M sold.

Castleark Management first reported a position in CALX in Q3 2013 and held it in 7 quarters. The position peaked at $11.7M in Q4 2022. 309 funds tracked by Wall St. Rank hold CALX as of Q1 2026.

  • Castleark Management reported no remaining Calix position as of Q1 2026 after selling out during the quarter.
  • Castleark Management sold 52,920 Calix shares in Q1 2026, an estimated $2.8M.
  • Castleark Management first reported a position in Calix in Q3 2013 and held it in 7 quarters.
  • Castleark Management's Calix position peaked at $11.7M in Q4 2022.
  • 309 funds tracked by Wall St. Rank held Calix as of Q1 2026.

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