ASTL Algoma Steel Group Inc

NASDAQ
$4.26

Algoma Steel Group Inc (ASTL) 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
+13.04
13 buyers / 10 sellers
BUYING
Funds compared
26
funds with comparable ASTL positions
22 current holders · 22 prior-quarter holders
Net share change
+7.26M
+8.45M added, -1.19M cut
Position activity
4 new 9 increased 6 reduced 4 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
RENAISSANCE TECHNOLOGIES LLC Quant Sold Out -117.3K -100.0% $475.0K 0.0% 58
MARSHALL WACE, LLP Long/Short New +499.5K — $2.0M 0.0% 58
Balyasny Asset Management L.P. Sold Out -11.5K -100.0% $46.6K 0.0% 57
LMR Partners Event Quant New +2.81M — $11.4M 0.0% 57
Point72 Asset Management, L.P. Increased +501.3K +678.2% $2.0M 0.0% 55
Wolverine Asset Management Event Quant New +229.9K — $930.9K 0.0% 54
CITADEL ADVISORS LLC Quant Increased +578.2K +216.0% $2.3M 0.0% 54
D. E. Shaw & Co., Inc. Quant Increased +957.6K +353.9% $3.9M 0.0% 54
TWO SIGMA INVESTMENTS, LP Quant Increased +771.9K +286.0% $3.1M 0.0% 53
Schonfeld Strategic Advisors Long/Short Quant Sold Out -13.2K -100.0% $53.4K 0.0% 51

Most significant buyers

By move score, not size.

  • MARSHALL WACE, LLP New · +499.5K
  • LMR Partners New · +2.81M
  • Point72 Asset Management, L.P. Increased · +501.3K
  • Wolverine Asset Management New · +229.9K
  • CITADEL ADVISORS LLC Increased · +578.2K

Most significant sellers

By move score, not size.

  • RENAISSANCE TECHNOLOGIES LLC Sold Out · -117.3K
  • Balyasny Asset Management L.P. Sold Out · -11.5K
  • Schonfeld Strategic Advisors Sold Out · -13.2K
  • CenterBook Partners Sold Out · -233.5K
  • MILLENNIUM MANAGEMENT LLC Reduced · -379.5K

Hedge fund positions

Fund Tier Shares Previous Change Change % Portfolio wt. Action Score
RENAISSANCE TECHNOLOGIES LLC 1 0 117.3K -117.3K -100.0% 0.0% Sold Out 58
MARSHALL WACE, LLP 2 499.5K 0 +499.5K — 0.0% New 58
Balyasny Asset Management L.P. 2 0 11.5K -11.5K -100.0% 0.0% Sold Out 57
LMR Partners 3 2.8M 0 +2.81M — 0.0% New 57
Point72 Asset Management, L.P. 1 575.2K 73.9K +501.3K +678.2% 0.0% Increased 55
Wolverine Asset Management 2 229.9K 0 +229.9K — 0.0% New 54
CITADEL ADVISORS LLC 1 845.9K 267.7K +578.2K +216.0% 0.0% Increased 54
D. E. Shaw & Co., Inc. 1 1.2M 270.5K +957.6K +353.9% 0.0% Increased 54
TWO SIGMA INVESTMENTS, LP 2 1.0M 269.9K +771.9K +286.0% 0.0% Increased 53
Schonfeld Strategic Advisors 3 0 13.2K -13.2K -100.0% 0.0% Sold Out 51
Aristeia Capital 2 810.4K 91.4K +719.0K +786.5% 0.0% Increased 50
CenterBook Partners 4 0 233.5K -233.5K -100.0% 0.0% Sold Out 49
Y-Intercept 4 35.5K 0 +35.5K — 0.0% New 48
Voleon Capital Management 3 307.3K 130.9K +176.4K +134.7% 0.0% Increased 45
Caption Management 3 44.6K 17.3K +27.3K +157.5% 0.0% Increased 44
Boothbay Fund Management 4 256.2K 45.1K +211.1K +468.4% 0.0% Increased 43
MILLENNIUM MANAGEMENT LLC 2 386.9K 766.4K -379.5K -49.5% 0.0% Reduced 41
Maple Rock Capital Partners 2 16.9M 15.9M +931.0K +5.8% 1.4% Increased 40
Aquatic Capital Management 4 11.2K 47.3K -36.1K -76.4% 0.0% Reduced 36
ExodusPoint Capital Management 3 101.7K 229.6K -127.8K -55.7% 0.0% Reduced 35
Squarepoint Ops LLC 2 41.8K 64.2K -22.4K -34.9% 0.0% Reduced 32
Quadrature Capital 3 682.5K 878.5K -196.0K -22.3% 0.0% Reduced 27
Quantbot Technologies 4 109.2K 157.9K -48.7K -30.9% 0.0% Reduced 22
Readystate Asset Management 3 463.2K 463.2K 0 +0.0% 0.1% Unchanged 15
Quinn Opportunity Partners 4 142.3K 142.3K 0 +0.0% 0.0% Unchanged 13
Verition Fund Management 2 26.8K 26.8K 0 +0.0% 0.0% Unchanged 18

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.

Sign in or subscribe

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.