Dean Investment Associates’s MKS Inc MKSI Stock Holding History

Dean Investment Associates’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	$4.1M	Sell	9,208 -8,924	-49%	-$2.79M	0.54%	97
2026 Q1	$4.17M	Sell	18,132 -5,348	-23%	-$1.21M	0.59%	78
2025 Q4	$3.75M	Buy	23,480 +607	+3%	+$90K	0.54%	89
2025 Q3	$2.83M	Buy	22,873 +10,151	+80%	+$1.08M	0.4%	129
2025 Q2	$1.26M	Buy	+12,722	New	+$1.03M	0.19%	173
2021 Q3	–	Sell	-7,761	Closed	-$1.38M	–	239
2021 Q2	$1.38M	Sell	7,761 -71	-0.9%	-$12.9K	0.25%	178
2021 Q1	$1.45M	Buy	+7,832	New	+$1.32M	0.27%	170

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

Dean Investment Associates's MKSI Position: Q2 2026 in Review

Dean Investment Associates reduced its MKS Inc (MKSI) stake by 49% in Q2 2026, selling an estimated $2.79M and leaving 9,208 shares worth $4.1M. The position accounts for 0.54% of the portfolio, ranked #97.

Dean Investment Associates first reported a position in MKSI in Q1 2021 and has held it in 7 quarters since. The position peaked at $4.17M in Q1 2026. 775 funds tracked by Wall St. Rank hold MKSI as of Q2 2026.

Dean Investment Associates held 9,208 shares of MKS Inc worth $4.1M as of Q2 2026.
Dean Investment Associates sold 8,924 MKS Inc shares in Q2 2026, an estimated $2.79M.
MKS Inc made up 0.54% of Dean Investment Associates's portfolio in Q2 2026, its #97 holding.
Dean Investment Associates first reported a position in MKS Inc in Q1 2021 and has held it in 7 quarters since.
Dean Investment Associates's MKS Inc position peaked at $4.17M in Q1 2026.
775 funds tracked by Wall St. Rank held MKS Inc as of Q2 2026.

Based on Dean Investment Associates's 13F filing for Q2 2026, filed 14 Aug 2026.