13F Insight
DOSSIER · 13F Holders · Q2 2026
MKSI 1.25 06/01/30

MKS INC.

77 institutions still hold MKS INC. as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 55306NAB0·77 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$3.0B
visible holders
Holders
77
filers reporting
Concentration
19.68%
LINDEN ADVISORS LP #1
top holder share
AI Holders Summary · Q2 2026

77 institutions reported MKSI 1.25 06/01/30 in Q2 2026. LINDEN ADVISORS LP leads at 19.7% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
LINDEN ADVISORS LP
CIK 0001279396
$593M201.3M3.07%Q2 202602
Sculptor Capital LP
CIK 0001054587
$480M162.5M3.91%Q2 202603
VOYA INVESTMENT MANAGEMENT LLC
CIK 0001068837
$321M108.9M0.28%Q2 202604
FRANKLIN RESOURCES INC
CIK 0000038777
$170M57.7M0.04%Q2 202605
Calamos Advisors LLC
CIK 0001316507
$150M50.8M0.50%Q2 202606
Alberta Investment Management Corp
CIK 0001463559· Sovereign
$148M50.0M0.83%Q2 202607
DAVIDSON KEMPNER CAPITAL MANAGEMENT LP
CIK 0001595082
$146M49.5M1.73%Q2 202608
FMR LLC
CIK 0000315066
$130M44.0M0.01%Q2 202609
BNP PARIBAS FINANCIAL MARKETS
CIK 0001166588
$119M40.3M0.04%Q2 202610
STATE STREET CORP
CIK 0000093751
$108M36.5M0.00%Q2 202611
MACKAY SHIELDS LLC
CIK 0000061227
$107M36.5M3.60%Q2 202612
BlackRock, Inc.
CIK 0002012383
$101M34.2M0.00%Q2 202613
DeepCurrents Investment Group LLC
CIK 0001754535
$92M31.0M2.77%Q2 202614
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
CIK 0000861177
$68M23.2M0.01%Q2 202615
TENOR CAPITAL MANAGEMENT Co., L.P.
CIK 0001346554
$66M22.5M0.93%Q2 202616
BOUSSARD & GAVAUDAN GESTION SAS
CIK 0001569001
$47M16K2.37%Q2 202617
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$46M15.6M0.02%Q2 202618
SILVERBACK ASSET MANAGEMENT LLC
CIK 0001278960
$43M14.7M4.69%Q2 202619
ARISTEIA CAPITAL, L.L.C.
CIK 0001080171
$41M14.0M0.54%Q2 202620
JPMORGAN CHASE & CO
CIK 0000019617
$40M14.6M0.00%Q2 2026
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