HMH HMH Holding Inc.

NASDAQ
$18.85

HMH Holding Inc. (HMH) Hedge Fund Activity

This view isolates hedge funds from the broader institutional ownership shown on the Institutional tab. A pension fund tracking an index may have no view on a stock; when a hedge fund builds or exits a position, that decision can carry information. This page measures those changes. Positions as of June 30, 2026.

Based on quarterly 13F long-equity filings. Changes compare reported quarter-end positions; filings can be reported up to 45 days later and do not represent a fund's complete exposure.

Hedge fund breadth
+100.00
14 buyers / 0 sellers
STRONG BUYING
Funds compared
14
funds with comparable HMH positions
14 current holders · 0 prior-quarter holders
Net share change
+1.93M
+1.93M added, 0 cut
Position activity
14 new 0 increased 0 reduced 0 exited

Most significant moves

Ranked by conviction, not size — how much of the fund's own book the position represents, how far it moved, and what kind of fund made it.

Fund Action Shares changed Change Est. value Portfolio wt. Score
CITADEL ADVISORS LLC Quant New +673.7K — $12.6M 0.0% 58
MILLENNIUM MANAGEMENT LLC New +160.9K — $3.0M 0.0% 55
TWO SIGMA INVESTMENTS, LP Quant New +266.9K — $5.0M 0.0% 55
Alyeska Investment Group, L.P. New +300.0K — $5.6M 0.0% 54
D. E. Shaw & Co., Inc. Quant New +40.2K — $752.6K 0.0% 54
Ghisallo Capital Management Long/Short New +125.0K — $2.3M 0.1% 53
Squarepoint Ops LLC Quant New +57.4K — $1.1M 0.0% 52
LMR Partners Event Quant New +60.2K — $1.1M 0.0% 51
Weiss Asset Management Event Quant New +30.0K — $562.2K 0.0% 50
Woodline Partners LP Long/Short New +40.0K — $749.6K 0.0% 50

Most significant buyers

By move score, not size.

  • CITADEL ADVISORS LLC New · +673.7K
  • MILLENNIUM MANAGEMENT LLC New · +160.9K
  • TWO SIGMA INVESTMENTS, LP New · +266.9K
  • Alyeska Investment Group, L.P. New · +300.0K
  • D. E. Shaw & Co., Inc. New · +40.2K

Most significant sellers

By move score, not size.

Hedge fund positions

Fund Tier Shares Previous Change Change % Portfolio wt. Action Score
CITADEL ADVISORS LLC 1 673.7K 0 +673.7K — 0.0% New 58
MILLENNIUM MANAGEMENT LLC 2 160.9K 0 +160.9K — 0.0% New 55
TWO SIGMA INVESTMENTS, LP 2 266.9K 0 +266.9K — 0.0% New 55
Alyeska Investment Group, L.P. 2 300.0K 0 +300.0K — 0.0% New 54
D. E. Shaw & Co., Inc. 1 40.2K 0 +40.2K — 0.0% New 54
Ghisallo Capital Management 2 125.0K 0 +125.0K — 0.1% New 53
Squarepoint Ops LLC 2 57.4K 0 +57.4K — 0.0% New 52
LMR Partners 3 60.2K 0 +60.2K — 0.0% New 51
Weiss Asset Management 2 30.0K 0 +30.0K — 0.0% New 50
Woodline Partners LP 2 40.0K 0 +40.0K — 0.0% New 50
Tudor Investment Corporation 2 15.9K 0 +15.9K — 0.0% New 49
Walleye Capital 3 83.0K 0 +83.0K — 0.0% New 49
Readystate Asset Management 3 80.0K 0 +80.0K — 0.1% New 48
Quantbot Technologies 4 359 0 +359 — 0.0% New 41

Every fund above opens. Subscribers can see any manager's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.

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Hedge funds are identified from their 13F filings, which are due 45 days after quarter end and cover long U.S.-listed equity positions only. A fund's short book never appears, so a reduced position can mean a changed view or a changed hedge — the filing doesn't say which.