MAGN MAGNERA CORP

NYSE
$12.54

MAGNERA CORP (MAGN) 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
-10.34
13 buyers / 16 sellers
SELLING
Funds compared
30
funds with comparable MAGN positions
22 current holders · 26 prior-quarter holders
Net share change
-572.8K
+881.0K added, -1.45M cut
Position activity
4 new 9 increased 8 reduced 8 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
MILLENNIUM MANAGEMENT LLC Sold Out -200.0K -100.0% $2.3M 0.0% 59
Balyasny Asset Management L.P. New +81.3K — $955.4K 0.0% 57
Weiss Asset Management Event Quant Sold Out -117.5K -100.0% $1.4M 0.0% 56
MARSHALL WACE, LLP Long/Short Sold Out -55.2K -100.0% $648.2K 0.0% 56
Magnetar Capital Event Quant Sold Out -18.2K -100.0% $213.4K 0.0% 54
Aristeia Capital Event Long/Short New +19.0K — $222.9K 0.0% 54
ExodusPoint Capital Management Long/Short Quant Sold Out -57.7K -100.0% $677.6K 0.0% 52
Walleye Capital Long/Short Quant Sold Out -30.6K -100.0% $360.1K 0.0% 51
Caption Management Quant Sold Out -571 -100.0% $6.7K 0.0% 50
Brevan Howard Capital Management Macro New +21.2K — $249.3K 0.0% 49

Most significant buyers

By move score, not size.

  • Balyasny Asset Management L.P. New · +81.3K
  • Aristeia Capital New · +19.0K
  • Brevan Howard Capital Management New · +21.2K
  • Centiva Capital New · +10.3K
  • AQR Capital Management Increased · +334.0K

Most significant sellers

By move score, not size.

  • MILLENNIUM MANAGEMENT LLC Sold Out · -200.0K
  • Weiss Asset Management Sold Out · -117.5K
  • MARSHALL WACE, LLP Sold Out · -55.2K
  • Magnetar Capital Sold Out · -18.2K
  • ExodusPoint Capital Management Sold Out · -57.7K

Hedge fund positions

Fund Tier Shares Previous Change Change % Portfolio wt. Action Score
MILLENNIUM MANAGEMENT LLC 2 0 200.0K -200.0K -100.0% 0.0% Sold Out 59
Balyasny Asset Management L.P. 2 81.3K 0 +81.3K — 0.0% New 57
Weiss Asset Management 2 0 117.5K -117.5K -100.0% 0.0% Sold Out 56
MARSHALL WACE, LLP 2 0 55.2K -55.2K -100.0% 0.0% Sold Out 56
Magnetar Capital 2 0 18.2K -18.2K -100.0% 0.0% Sold Out 54
Aristeia Capital 2 19.0K 0 +19.0K — 0.0% New 54
ExodusPoint Capital Management 3 0 57.7K -57.7K -100.0% 0.0% Sold Out 52
Walleye Capital 3 0 30.6K -30.6K -100.0% 0.0% Sold Out 51
Caption Management 3 0 571 -571 -100.0% 0.0% Sold Out 50
Brevan Howard Capital Management 3 21.2K 0 +21.2K — 0.0% New 49
Y-Intercept 4 0 78.6K -78.6K -100.0% 0.0% Sold Out 48
Centiva Capital 4 10.3K 0 +10.3K — 0.0% New 48
AQR Capital Management 3 479.5K 145.6K +334.0K +229.4% 0.0% Increased 47
CITADEL ADVISORS LLC 1 135.3K 314.8K -179.5K -57.0% 0.0% Reduced 43
Quantbot Technologies 4 54.0K 12.5K +41.5K +331.7% 0.0% Increased 39
Tudor Investment Corporation 2 147.5K 269.3K -121.8K -45.2% 0.0% Reduced 36
Verition Fund Management 2 607.3K 432.3K +175.0K +40.5% 0.1% Increased 35
CastleKnight Management 3 282.1K 183.5K +98.6K +53.7% 0.1% Increased 35
Madison Avenue Partners 2 1.3M 1.6M -288.6K -18.1% 0.7% Reduced 33
Engineers Gate 4 49.2K 121.4K -72.2K -59.4% 0.0% Reduced 32
D. E. Shaw & Co., Inc. 1 789.7K 896.2K -106.5K -11.9% 0.0% Reduced 32
Trexquant Investment 3 175.2K 287.3K -112.1K -39.0% 0.0% Reduced 32
Squarepoint Ops LLC 2 217.3K 177.9K +39.4K +22.1% 0.0% Increased 29
TWO SIGMA INVESTMENTS, LP 2 24.7K 23.5K +1.3K +5.4% 0.0% Increased 27
Man Group 3 207.2K 185.4K +21.7K +11.7% 0.0% Increased 24
J. Goldman & Co. 3 425.0K 387.3K +37.7K +9.7% 0.2% Increased 23
Voleon Capital Management 3 50.1K 55.4K -5.3K -9.6% 0.0% Reduced 22
Readystate Asset Management 3 192.5K 202.2K -9.7K -4.8% 0.2% Reduced 21
Graham Capital Management 3 11.7K 11.7K +33 +0.3% 0.0% Increased 18
Quinn Opportunity Partners 4 75.6K 75.6K 0 +0.0% 0.0% Unchanged 13

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.