DOSSIER · 13F Holders · Q1 2026Healthcare · Industrial Instruments For Measurement, Display, and Control
MKSI
MKS INC.
640 institutions still hold MKS INC. as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.
CUSIP 55306N104·Industrial Instruments For Measurement, Display, and Control·640 13F holders·last filed Mar 31, 2026
AI Holders Summary · Q1 2026
640 institutions reported MKSI in Q1 2026. BlackRock, Inc. leads at 16.1% of the visible book.
Top holders
Sorted by position value. Source: SEC EDGAR 13F-HR filings.
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