MKS INSTRS INC

Institutions

Combined AUM (Q2 2026)

$230.7M

Combined Shares (Q2 2026)

518,700

Overall Trend

Increase

All institutions combined

Basis: holder count and combined value / shares merge all share classes of the same company (e.g. Class A / C); each institution is counted once, and value & shares are the sum across classes.

📥 Inflow (Q1 2026→Q2 2026)

+483,000

3 institutions added · 1 new buys

Est. buy amount ≈ —

📤 Outflow (Q1 2026→Q2 2026)

-3,800

1 institutions reduced · 0 exits

Est. sell amount ≈ —

⚖️ Net Share Change

+479,200

—

Net Buy

💰 Est. Net Value

≈ —

—

est. price —

⏳

Latest AUM (Q2 2026)

$230.7M

Institutions

New Buys

Adds

Reduces

Exits

Unchanged

	Portfolio %	Prev Q %	Rank	Q2 2026 Value	Q2 2026 Shares	Prev Q Value	Prev Q Shares	Shares Change	Action
SG Americas Securities, LLC	0.1%	—	#1	$195.7M	440,000	$0	0	+440,000	New Buy
IMC-Chicago, LLC	0.01%	<0.01%	#2	$31.5M	70,900	$7.1M	30,900	+40,000+129.45%	Add
GROUP ONE TRADING LLC	<0.01%	<0.01%	#3	$1.9M	4,200	$275,772	1,200	+3,000+250.00%	Add
SIMPLEX TRADING, LLC	<0.01%	<0.01%	#4	$1.6M	3,600	$1.7M	7,400	-3,800-51.35%	Reduce

🧭 Institutional Sector Flow Heatmap

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Net Outflow Net Inflow