DOSSIER · 13F Holders · Q1 2026
ANRO

ALTO NEUROSCIENCE INC

115 institutions still hold ALTO NEUROSCIENCE INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 02157Q109·115 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$499M
visible holders
Holders
115
filers reporting
Concentration
16.69%
Alpha Wave Global, LP #1
top holder share
AI Holders Summary · Q1 2026

115 institutions reported ANRO in Q1 2026. Alpha Wave Global, LP leads at 16.7% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
Alpha Wave Global, LP
CIK 0001558858
$83M3.7M10.54%Q1 2026
02
Commodore Capital LP
CIK 0001831942
$61M2.7M3.54%Q1 2026
03
Vestal Point Capital, LP
CIK 0001974915
$46M2.1M1.30%Q1 2026
04
PERCEPTIVE ADVISORS LLC
CIK 0001224962
$45M2.0M0.88%Q1 2026
05
Spruce Street Capital LP
CIK 0002050194
$29M1.3M7.00%Q1 2026
06
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$27M1.2M0.00%Q1 2026
07
FRANKLIN RESOURCES INC
CIK 0000038777
$25M1.1M0.01%Q1 2026
08
Vivo Capital, LLC
CIK 0001674712
$23M1.0M1.94%Q1 2026
09
ARMISTICE CAPITAL, LLC
CIK 0001601086
$21M912K0.36%Q1 2026
10
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$18M822K0.01%Q1 2026
11
72 Investment Holdings, LLC
CIK 0001832749
$15M668K30.26%Q1 2026
12
BlackRock, Inc.
CIK 0002012383
$15M666K0.00%Q1 2026
13
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$14M638K0.00%Q1 2026
14
Ikarian Capital, LLC
CIK 0001778253
$12M515K0.94%Q1 2026
15
Point72 Asset Management, L.P.
CIK 0001603466
$11M503K0.01%Q1 2026
16
Affinity Asset Advisors, LLC
CIK 0001773195
$11M500K0.58%Q1 2026
17
Integral Health Asset Management, LLC
CIK 0001773206
$11M500K0.54%Q1 2026
18
DRIEHAUS CAPITAL MANAGEMENT LLC
CIK 0000938206
$11M487K0.08%Q1 2026
19
NORTHERN TRUST CORP
CIK 0000073124· Index
$11M473K0.00%Q1 2026
20
ADAGE CAPITAL PARTNERS GP, L.L.C.
CIK 0001165408
$9M385K0.01%Q1 2026
Page 1 of 6
95 more holders available. Log in →
Insiders at ALTO NEUROSCIENCE INC
Etkin AmitSanchez RamiroSavitz AdamSmith Nicholas ConradHanley Jr. Michael ConickManji HusseiniCox Christopher NixonYork Gwill