BFLY Butterfly Network, Inc.

NYSE
$7.33

Butterfly Network, Inc. (BFLY) 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
+33.33
14 buyers / 7 sellers
STRONG BUYING
Funds compared
24
funds with comparable BFLY positions
21 current holders · 17 prior-quarter holders
Net share change
+4.70M
+8.53M added, -3.83M cut
Position activity
7 new 7 increased 4 reduced 3 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 New +93.8K — $790.0K 0.0% 58
CITADEL ADVISORS LLC Quant Sold Out -42.3K -100.0% $356.2K 0.0% 58
D. E. Shaw & Co., Inc. Quant Increased +5.27M +470.6% $44.4M 0.0% 56
Verition Fund Management Event Long/Short New +121.6K — $1.0M 0.0% 56
Voloridge Investment Management Quant New +1.08M — $9.1M 0.0% 56
ExodusPoint Capital Management Long/Short Quant New +761.9K — $6.4M 0.1% 54
Jain Global Long/Short Quant New +22.6K — $190.5K 0.0% 52
Walleye Capital Long/Short Quant New +66.2K — $557.7K 0.0% 51
Aquatic Capital Management Quant Sold Out -226.2K -100.0% $1.9M 0.0% 50
MARSHALL WACE, LLP Long/Short Reduced -1.82M -79.7% $15.3M 0.0% 49

Most significant buyers

By move score, not size.

  • RENAISSANCE TECHNOLOGIES LLC New · +93.8K
  • D. E. Shaw & Co., Inc. Increased · +5.27M
  • Verition Fund Management New · +121.6K
  • Voloridge Investment Management New · +1.08M
  • ExodusPoint Capital Management New · +761.9K

Most significant sellers

By move score, not size.

  • CITADEL ADVISORS LLC Sold Out · -42.3K
  • Aquatic Capital Management Sold Out · -226.2K
  • MARSHALL WACE, LLP Reduced · -1.82M
  • Quantbot Technologies Sold Out · -2.5K
  • MILLENNIUM MANAGEMENT LLC Reduced · -1.33M

Hedge fund positions

Fund Tier Shares Previous Change Change % Portfolio wt. Action Score
RENAISSANCE TECHNOLOGIES LLC 1 93.8K 0 +93.8K — 0.0% New 58
CITADEL ADVISORS LLC 1 0 42.3K -42.3K -100.0% 0.0% Sold Out 58
D. E. Shaw & Co., Inc. 1 6.4M 1.1M +5.27M +470.6% 0.0% Increased 56
Verition Fund Management 2 121.6K 0 +121.6K — 0.0% New 56
Voloridge Investment Management 2 1.1M 0 +1.08M — 0.0% New 56
ExodusPoint Capital Management 3 761.9K 0 +761.9K — 0.1% New 54
Jain Global 3 22.6K 0 +22.6K — 0.0% New 52
Walleye Capital 3 66.2K 0 +66.2K — 0.0% New 51
Aquatic Capital Management 4 0 226.2K -226.2K -100.0% 0.0% Sold Out 50
MARSHALL WACE, LLP 2 463.1K 2.3M -1.82M -79.7% 0.0% Reduced 49
TWO SIGMA INVESTMENTS, LP 2 1.4M 757.2K +615.8K +81.3% 0.0% Increased 48
Engineers Gate 4 70.7K 0 +70.7K — 0.0% New 48
Man Group 3 191.2K 95.6K +95.6K +100.0% 0.0% Increased 46
Quantbot Technologies 4 0 2.5K -2.5K -100.0% 0.0% Sold Out 45
MILLENNIUM MANAGEMENT LLC 2 2.2M 3.5M -1.33M -38.2% 0.0% Reduced 40
Voleon Capital Management 3 150.0K 393.7K -243.7K -61.9% 0.0% Reduced 38
Schonfeld Strategic Advisors 3 106.3K 268.1K -161.8K -60.4% 0.0% Reduced 37
Tudor Investment Corporation 2 631.0K 431.5K +199.4K +46.2% 0.0% Increased 36
Brevan Howard Capital Management 3 64.3K 43.5K +20.8K +47.9% 0.0% Increased 30
Squarepoint Ops LLC 2 450.4K 354.6K +95.9K +27.0% 0.0% Increased 30
AQR Capital Management 3 78.1K 60.6K +17.6K +29.0% 0.0% Increased 27
Glenview Capital Management 2 14.3M 14.3M 0 +0.0% 2.4% Unchanged 33
Gotham Asset Management, LLC 2 462.2K 462.2K 0 +0.0% 0.0% Unchanged 18
Graham Capital Management 3 90.0K 90.0K 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.

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.