13F Insight
DOSSIER · 13F Holders · Q1 2026Inflation hedgeYield
MIST

MILESTONE PHARMACEUTICALS IN

86 institutions still hold MILESTONE PHARMACEUTICALS IN as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 59935V107·86 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 4.5%
vs prior quarter
13F value held
$36M
59.0% inst. owned
of float
Holders
86
-73 QoQ
filers reporting
Activity
+8 / −100
+929 added · −835 reduced
this quarter
Concentration
21.11%
RTW INVESTMENTS, LP #1
top holder share
AI Holders Summary · Q1 2026

86 institutions reported MIST in Q1 2026. RTW INVESTMENTS, LP leads at 21.1% of the visible book. -73 net institutions QoQ — distribution reading.

Top holders

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

#HolderValueShares% port.Quarter
01
RTW INVESTMENTS, LP
CIK 0001493215
$8M6.3M0.07%Q1 202602
Propel Bio Management, LLC
CIK 0001969764
$5M4.1M3.20%Q1 202603
MARSHALL WACE, LLP
CIK 0001318757
$3M1.7M0.00%Q4 202504
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$3M2.3M0.00%Q1 202605
GOLDMAN SACHS GROUP INC
CIK 0000886982
$2M2.0M0.00%Q1 202606
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$2M1.5M0.00%Q1 202607
Simplify Asset Management Inc.
CIK 0001846368
$2M1.5M0.03%Q1 202608
Point72 Asset Management, L.P.
CIK 0001603466
$1M1.1M0.00%Q1 202609
CITADEL ADVISORS LLC
CIK 0001423053
$1M637K0.00%Q4 202510
TWO SIGMA ADVISERS, LP
CIK 0001478735
$1M620K0.00%Q4 202511
BALYASNY ASSET MANAGEMENT L.P.
CIK 0001218710
$1M851K0.00%Q1 202612
Lion Point Capital, LP
CIK 0001643354
$975,800820K5.83%Q1 202613
TORONTO DOMINION BANK
CIK 0000947263
$892,500750K0.00%Q1 202614
MORGAN STANLEY
CIK 0000895421
$861,727724K0.00%Q1 202615
Boxer Capital Management, LLC
CIK 0002018299
$793,333667K0.10%Q1 202616
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$748,684629K0.00%Q1 202617
UBS Group AG
CIK 0001610520
$588,940495K0.00%Q1 202618
AMH Equity Ltd
CIK 0001600535
$463,342232K0.58%Q3 202519
Squarepoint Ops LLC
CIK 0001642575
$400,822337K0.00%Q1 202620
Seven Fleet Capital Management LP
CIK 0002092021
$396,666333K0.12%Q1 2026
Page 1 of 5
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