Campbell & Co Investment Adviser’s MKS Inc MKSI Stock Holding History

Campbell & Co Investment Adviser’s Portfolio MKSI Stock Details MKSI Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$696K	Buy	+1,564	New	+$489K	0.04%	673
2026 Q1	–	Sell	-1,364	Closed	-$218K	–	1279
2025 Q4	$218K	Buy	+1,364	New	+$202K	0.01%	1045
2021 Q4	–	Sell	-2,322	Closed	-$350K	–	738
2021 Q3	$350K	Buy	+2,322	New	+$356K	0.11%	322
2021 Q1	–	Sell	-2,255	Closed	-$339K	–	546
2020 Q4	$339K	Buy	+2,255	New	+$295K	0.21%	192
2019 Q3	–	Sell	-18,547	Closed	-$1.45M	–	691
2019 Q2	$1.45M	Buy	+18,547	New	+$1.57M	0.66%	8
2019 Q1	–	Sell	-6,226	Closed	-$445K	–	570
2018 Q4	$445K	Buy	6,226 +1,476	+31%	+$107K	0.44%	53
2018 Q3	$381K	Sell	4,750 -500	-10%	-$45.7K	0.26%	135
2018 Q2	$502K	Buy	+5,250	New	+$573K	0.39%	65
2017 Q3	–	Sell	-3,558	Closed	-$239K	–	417
2017 Q2	$239K	Buy	+3,558	New	+$270K	0.22%	208
2015 Q2	–	Sell	-9,892	Closed	-$334K	–	207
2015 Q1	$334K	Buy	+9,892	New	+$348K	0.21%	148

Other funds holding MKSI

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Point72 Asset Management Stamford, Connecticut $90.7B AUM 77.13% 1-Year Est. Return

Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

AMH

Aspex Management (HK) Central, Hong Kong $8.89B AUM 39.91% 1-Year Est. Return

Campbell & Co Investment Adviser's MKSI Position: Q2 2026 in Review

Campbell & Co Investment Adviser opened a new position in MKS Inc (MKSI) in Q2 2026: 1,564 shares worth $696K. The stake represents 0.04% of the portfolio and ranks #673 among its holdings. This is a return to the name: Campbell & Co Investment Adviser previously reported a position in MKSI as recently as Q4 2025.

Campbell & Co Investment Adviser first reported a position in MKSI in Q1 2015 and has held it in 10 quarters since. The position peaked at $1.45M in Q2 2019. 775 funds tracked by Wall St. Rank hold MKSI as of Q2 2026.

Campbell & Co Investment Adviser held 1,564 shares of MKS Inc worth $696K as of Q2 2026.
MKS Inc was a new Campbell & Co Investment Adviser position in Q2 2026.
MKS Inc made up 0.04% of Campbell & Co Investment Adviser's portfolio in Q2 2026, its #673 holding.
Campbell & Co Investment Adviser first reported a position in MKS Inc in Q1 2015 and has held it in 10 quarters since.
Campbell & Co Investment Adviser's MKS Inc position peaked at $1.45M in Q2 2019.
775 funds tracked by Wall St. Rank held MKS Inc as of Q2 2026.

Based on Campbell & Co Investment Adviser's 13F filing for Q2 2026, filed 3 Aug 2026.