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Castleark Management’s Silicon Laboratories SLAB Stock Holding History

Castleark Management’s Portfolio SLAB Stock Details SLAB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-22,622
Closed -$2.96M – 337
2025
Q4 		$2.96M Sell
22,622
-24,920
-52% -$3.28M 0.09% 180
2025
Q3 		$6.23M Buy
47,542
+1,802
+4% +$245K 0.17% 131
2025
Q2 		$6.74M Buy
+45,740
New +$5.41M 0.2% 91
2023
Q2 		– Sell
-26,560
Closed -$4.65M – 308
2023
Q1 		$4.65M Buy
+26,560
New +$4.46M 0.23% 105
2020
Q1 		– Sell
-61,873
Closed -$7.18M – 384
2019
Q4 		$7.18M Sell
61,873
-21,937
-26% -$2.41M 0.29% 118
2019
Q3 		$9.33M Buy
83,810
+70
+0.1% +$7.58K 0.38% 93
2019
Q2 		$8.66M Buy
+83,740
New +$8.08M 0.33% 103

Other funds holding SLAB

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Balyasny Asset Management
Balyasny Asset Management Chicago, Illinois $80.2B AUM 51.53% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return
NAMI
Nomura Asset Management International Philadelphia, Pennsylvania $66.6B AUM
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Castleark Management's SLAB Position: Q1 2026 in Review

Castleark Management sold out of Silicon Laboratories (SLAB) in Q1 2026, closing a stake of 22,622 shares — an estimated $2.96M sold.

Castleark Management first reported a position in SLAB in Q2 2019 and held it in 7 quarters. The position peaked at $9.33M in Q3 2019. 378 funds tracked by Wall St. Rank hold SLAB as of Q1 2026.

  • Castleark Management reported no remaining Silicon Laboratories position as of Q1 2026 after selling out during the quarter.
  • Castleark Management sold 22,622 Silicon Laboratories shares in Q1 2026, an estimated $2.96M.
  • Castleark Management first reported a position in Silicon Laboratories in Q2 2019 and held it in 7 quarters.
  • Castleark Management's Silicon Laboratories position peaked at $9.33M in Q3 2019.
  • 378 funds tracked by Wall St. Rank held Silicon Laboratories as of Q1 2026.

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