DOSSIER · 13F Holders · Q3 2026

MONTE ROSA THERAPEUTICS INC

5 institutions still hold MONTE ROSA THERAPEUTICS INC as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 61225M902·5 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$7M
visible holders
Holders
5
filers reporting
Concentration
85.79%
SILVERARC CAPITAL MANAGEMENT, LLC #1
top holder share
AI Holders Summary · Q3 2026

5 institutions reported MONTE ROSA THERAPEUTICS INC in Q3 2026. SILVERARC CAPITAL MANAGEMENT, LLC leads at 85.8% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
SILVERARC CAPITAL MANAGEMENT, LLC
CIK 0001816307
$6M525K0.73%Q3 2026
02
SIMPLEX TRADING, LLC
CIK 0001488542
$512K43K0.00%Q3 2026
03
GROUP ONE TRADING LLC
CIK 0000932540
$288K24K0.00%Q3 2026
04
HRT FINANCIAL LP
CIK 0001475597
$238K20K0.00%Q3 2026
05
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025