GGB Gerdau S.A.

NYSE
$5.15

Gerdau S.A. (GGB) 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
+0.00
11 buyers / 11 sellers
MIXED
Funds compared
22
funds with comparable GGB positions
20 current holders · 19 prior-quarter holders
Net share change
-14.69M
+10.21M added, -24.89M cut
Position activity
3 new 8 increased 9 reduced 2 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 Increased +4.05M +145.9% $16.3M 0.0% 55
Bridgewater Associates Quant Macro Increased +223.5K +464.0% $903.0K 0.0% 55
Magnetar Capital Event Quant Sold Out -59.9K -100.0% $242.0K 0.0% 54
CITADEL ADVISORS LLC Quant Increased +440.0K +441.9% $1.8M 0.0% 54
Tudor Investment Corporation Macro New +41.8K — $169.0K 0.0% 53
Caxton Associates Macro Sold Out -75.3K -100.0% $304.2K 0.0% 53
MARSHALL WACE, LLP Long/Short Increased +993.1K +169.3% $4.0M 0.0% 52
Jain Global Long/Short Quant New +34.8K — $140.6K 0.0% 52
CenterBook Partners Long/Short Quant New +77.5K — $313.0K 0.0% 49
Engineers Gate Quant Increased +3.89M +124.7% $15.7M 0.4% 48

Most significant buyers

By move score, not size.

  • MILLENNIUM MANAGEMENT LLC Increased · +4.05M
  • Bridgewater Associates Increased · +223.5K
  • CITADEL ADVISORS LLC Increased · +440.0K
  • Tudor Investment Corporation New · +41.8K
  • MARSHALL WACE, LLP Increased · +993.1K

Most significant sellers

By move score, not size.

  • Magnetar Capital Sold Out · -59.9K
  • Caxton Associates Sold Out · -75.3K
  • D. E. Shaw & Co., Inc. Reduced · -5.41M
  • Qube Research & Technologies Ltd Reduced · -2.77M
  • Aquatic Capital Management Reduced · -1.28M

Hedge fund positions

Fund Tier Shares Previous Change Change % Portfolio wt. Action Score
MILLENNIUM MANAGEMENT LLC 2 6.8M 2.8M +4.05M +145.9% 0.0% Increased 55
Bridgewater Associates 1 271.7K 48.2K +223.5K +464.0% 0.0% Increased 55
Magnetar Capital 2 0 59.9K -59.9K -100.0% 0.0% Sold Out 54
CITADEL ADVISORS LLC 1 539.6K 99.6K +440.0K +441.9% 0.0% Increased 54
Tudor Investment Corporation 2 41.8K 0 +41.8K — 0.0% New 53
Caxton Associates 3 0 75.3K -75.3K -100.0% 0.0% Sold Out 53
MARSHALL WACE, LLP 2 1.6M 586.6K +993.1K +169.3% 0.0% Increased 52
Jain Global 3 34.8K 0 +34.8K — 0.0% New 52
CenterBook Partners 4 77.5K 0 +77.5K — 0.0% New 49
Engineers Gate 4 7.0M 3.1M +3.89M +124.7% 0.4% Increased 48
D. E. Shaw & Co., Inc. 1 3.3M 8.7M -5.41M -62.1% 0.0% Reduced 46
Qube Research & Technologies Ltd 2 1.3M 4.1M -2.77M -68.0% 0.0% Reduced 45
Aquatic Capital Management 4 104.4K 1.4M -1.28M -92.5% 0.0% Reduced 43
RENAISSANCE TECHNOLOGIES LLC 1 6.9M 10.9M -4.03M -36.9% 0.0% Reduced 41
TWO SIGMA INVESTMENTS, LP 2 15.4M 25.8M -10.46M -40.5% 0.1% Reduced 40
Schonfeld Strategic Advisors 3 323.2K 180.4K +142.8K +79.1% 0.0% Increased 40
Squarepoint Ops LLC 2 157.5K 317.3K -159.8K -50.4% 0.0% Reduced 36
AQR Capital Management 3 758.1K 1.1M -342.4K -31.1% 0.0% Reduced 29
Point72 Asset Management, L.P. 1 897.6K 880.4K +17.2K +1.9% 0.0% Increased 29
Centiva Capital 4 124.5K 215.3K -90.7K -42.2% 0.0% Reduced 28
Man Group 3 1.8M 1.5M +298.4K +19.8% 0.0% Increased 28
Quantbot Technologies 4 258.4K 466.7K -208.4K -44.6% 0.0% Reduced 26

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.