Marshall Wace’s KLA KLAC Stock Holding History

Marshall Wace’s Portfolio KLAC Stock Details KLAC Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-700,000	Closed	-$85.1M	–	3475
2025 Q4	$85.1M	Buy	+700,000	New	+$82.1M	0.08%	207

Other funds holding KLAC

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return

Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return

Marshall Wace's KLAC Position: Q1 2026 in Review

Marshall Wace increased its KLA (KLAC) stake by 10,813% in Q1 2026, buying an estimated $133M and bringing the position to 915,610 shares worth $135M. The position accounts for 0.13% of the portfolio, ranked #114.

Marshall Wace first reported a position in KLAC in Q3 2015 and has held it in 26 quarters since. 2,063 funds tracked by Wall St. Rank hold KLAC as of Q1 2026.

Marshall Wace held 915,610 shares of KLA worth $135M as of Q1 2026.
Marshall Wace bought 907,220 KLA shares in Q1 2026, an estimated $133M.
KLA made up 0.13% of Marshall Wace's portfolio in Q1 2026, its #114 holding.
Marshall Wace first reported a position in KLA in Q3 2015 and has held it in 26 quarters since.
2,063 funds tracked by Wall St. Rank held KLA as of Q1 2026.

Based on Marshall Wace's 13F filing for Q1 2026, filed 15 May 2026.