Romano Brothers & Co’s MKS Inc MKSI Stock Holding History

Romano Brothers & Co’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 Q1	$473K	Hold	2,057	–	–	0.05%	237
2025 Q4	$329K	Hold	2,057	–	–	0.04%	272
2025 Q3	$255K	Hold	2,057	–	–	0.03%	298
2025 Q2	$204K	Buy	+2,057	New	+$167K	0.03%	302
2025 Q1	–	Sell	-2,057	Closed	-$215K	–	306
2024 Q4	$215K	Hold	2,057	–	–	0.03%	291
2024 Q3	$224K	Hold	2,057	–	–	0.03%	292
2024 Q2	$269K	Sell	2,057 -175	-8%	-$22.1K	0.04%	266
2024 Q1	$297K	Sell	2,232 -250	-10%	-$29.1K	0.04%	257
2023 Q4	$255K	Sell	2,482 -450	-15%	-$36.6K	0.04%	269
2023 Q3	$253K	Sell	2,932 -17,198	-85%	-$1.68M	0.04%	269
2023 Q2	$2.18M	Sell	20,130 -4,150	-17%	-$380K	0.32%	96
2023 Q1	$2.13M	Sell	24,280 -925	-4%	-$88.3K	0.33%	95
2022 Q4	$2.14M	Sell	25,205 -325	-1%	-$26K	0.32%	93
2022 Q3	$2.12M	Buy	+25,530	New	+$2.63M	0.34%	92

Other funds holding MKSI

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

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

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

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

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

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

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

Romano Brothers & Co's MKSI Position: Q1 2026 in Review

Romano Brothers & Co held its MKS Inc (MKSI) position steady in Q1 2026 at 2,057 shares worth $473K. The position accounts for 0.05% of the portfolio, ranked #237.

Romano Brothers & Co first reported a position in MKSI in Q3 2022 and has held it in 14 quarters since. The position peaked at $2.18M in Q2 2023. 615 funds tracked by Wall St. Rank hold MKSI as of Q1 2026.

Romano Brothers & Co held 2,057 shares of MKS Inc worth $473K as of Q1 2026.
Romano Brothers & Co left its MKS Inc share count unchanged in Q1 2026.
MKS Inc made up 0.05% of Romano Brothers & Co's portfolio in Q1 2026, its #237 holding.
Romano Brothers & Co first reported a position in MKS Inc in Q3 2022 and has held it in 14 quarters since.
Romano Brothers & Co's MKS Inc position peaked at $2.18M in Q2 2023.
615 funds tracked by Wall St. Rank held MKS Inc as of Q1 2026.

Based on Romano Brothers & Co's 13F filing for Q1 2026, filed 22 Apr 2026.