DOSSIER · 13F Holders · Q2 2026
HMH

HMH Holding Inc A

67 institutions still hold HMH Holding Inc A as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 40445M100·67 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$134M
visible holders
Holders
67
filers reporting
Concentration
20.93%
AMERICAN CENTURY COMPANIES INC #1
top holder share
AI Holders Summary · Q2 2026

67 institutions reported HMH in Q2 2026. AMERICAN CENTURY COMPANIES INC leads at 20.9% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
AMERICAN CENTURY COMPANIES INC
CIK 0000748054
$28M1.5M0.01%Q2 2026
02
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$14M760K0.00%Q2 2026
03
BlackRock, Inc.
CIK 0002012383
$14M738K0.00%Q2 2026
04
CITADEL ADVISORS LLC
CIK 0001423053
$13M674K0.00%Q2 2026
05
FMR LLC
CIK 0000315066
$11M564K0.00%Q2 2026
06
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$9M474K0.00%Q2 2026
07
Alyeska Investment Group, L.P.
CIK 0001453072
$6M300K0.01%Q2 2026
08
Cannell & Spears LLC
CIK 0001426319
$5M277K0.09%Q2 2026
09
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$5M273K0.00%Q2 2026
10
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$5M267K0.00%Q2 2026
11
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$3M161K0.00%Q2 2026
12
THOMIST CAPITAL MANAGEMENT, LP
CIK 0001767809
$3M158K0.94%Q2 2026
13
STATE STREET CORP
CIK 0000093751
$3M151K0.00%Q2 2026
14
SEVEN GRAND MANAGERS, LLC
CIK 0001909126
$3M150K0.11%Q2 2026
15
UBS Group AG
CIK 0001610520
$3M145K0.00%Q2 2026
16
Marex Group plc
CIK 0001997464
$2M127K0.01%Q2 2026
17
Ghisallo Capital Management LLC
CIK 0001825214
$2M125K0.05%Q2 2026
18
Burkehill Global Management, LP
CIK 0001904549
$2M125K0.08%Q2 2026
19
GOLDMAN SACHS GROUP INC
CIK 0000886982
$2M102K0.00%Q2 2026
20
Walleye Capital LLC
CIK 0001758720
$2M83K0.01%Q2 2026
Page 1 of 4
47 more holders available. Log in →
Insiders at HMH Holding Inc A
Qureshi Hunain →Rettig Dwight W →Skogerbo Pal →Bergsvik Eirik →Chauviere E Charls →Dyrseth Roy A. →Mcgee Thomas W. →