Main Street Research’s KLA KLAC Stock Holding History

Main Street Research’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 Q2	$484K	Sell	1,604 -166	-9%	-$33K	0.02%	92
2026 Q1	$261K	Sell	1,770 -460	-21%	-$67.3K	0.02%	118
2025 Q4	$271K	Sell	2,230 -120	-5%	-$14.1K	0.02%	110
2025 Q3	$253K	Buy	+2,350	New	+$219K	0.01%	112
2022 Q1	–	Sell	-6,250	Closed	-$269K	–	132
2021 Q4	$269K	Sell	6,250 -910	-13%	-$35.1K	0.02%	116
2021 Q3	$240K	Sell	7,160 -670	-9%	-$22.4K	0.02%	124
2021 Q2	$254K	Hold	7,830	–	–	0.02%	123
2021 Q1	$259K	Hold	7,830	–	–	0.02%	112
2020 Q4	$203K	Buy	+7,830	New	+$182K	0.02%	123
2015 Q3	–	Sell	-73,000	Closed	-$410K	–	129
2015 Q2	$410K	Hold	73,000	–	–	0.08%	102
2015 Q1	$426K	Buy	+73,000	New	+$467K	0.09%	99

Other funds holding KLAC

UPS

UHLMANN PRICE SECURITIES Skokie, Illinois $2.68B AUM 149.5% 1-Year Est. Return

Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return

Pictet Asset Management Carouge, Switzerland $105B AUM 38.07% 1-Year Est. Return

Parnassus Investments San Francisco, California $37.4B AUM 35.42% 1-Year Est. Return

Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $175B AUM 40.63% 1-Year Est. Return

Robeco Institutional Asset Management Rotterdam, Netherlands $81.4B AUM 40.71% 1-Year Est. Return

Truist Financial Charlotte, North Carolina $83.7B AUM 27.22% 1-Year Est. Return

PAM

PineStone Asset Management Montreal, Quebec, Canada $16.2B AUM 25.74% 1-Year Est. Return

Mirae Asset Global Investments Seoul, South Korea $67.7B AUM 51.91% 1-Year Est. Return

Assenagon Asset Management Senningerberg, Luxembourg $80.2B AUM 50.57% 1-Year Est. Return

Main Street Research's KLAC Position: Q2 2026 in Review

Main Street Research reduced its KLA (KLAC) stake by 9.4% in Q2 2026, selling an estimated $33K and leaving 1,604 shares worth $484K. The position accounts for 0.02% of the portfolio, ranked #92.

Main Street Research first reported a position in KLAC in Q1 2015 and has held it in 11 quarters since. 1,054 funds tracked by Wall St. Rank hold KLAC as of Q2 2026.

Main Street Research held 1,604 shares of KLA worth $484K as of Q2 2026.
Main Street Research sold 166 KLA shares in Q2 2026, an estimated $33K.
KLA made up 0.02% of Main Street Research's portfolio in Q2 2026, its #92 holding.
Main Street Research first reported a position in KLA in Q1 2015 and has held it in 11 quarters since.
1,054 funds tracked by Wall St. Rank held KLA as of Q2 2026.

Based on Main Street Research's 13F filing for Q2 2026, filed 29 Jul 2026.