IBIO iBio, Inc.

NASDAQ
$1.26

iBio, Inc. (IBIO) 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
+42.86
10 buyers / 4 sellers
STRONG BUYING
Funds compared
15
funds with comparable IBIO positions
13 current holders · 11 prior-quarter holders
Net share change
+4.08M
+7.06M added, -2.99M cut
Position activity
4 new 6 increased 2 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
Vestal Point Capital Growth Healthcare New +2.60M — $4.6M 0.1% 61
RENAISSANCE TECHNOLOGIES LLC Quant New +202.8K — $355.0K 0.0% 58
Logos Global Management Growth Healthcare Sold Out -1.30M -100.0% $2.3M 0.0% 58
EcoR1 Capital Growth Healthcare Sold Out -1.58M -100.0% $2.8M 0.0% 58
Woodline Partners LP Long/Short New +1.78M — $3.1M 0.0% 56
Squarepoint Ops LLC Quant New +498.9K — $873.0K 0.0% 54
CITADEL ADVISORS LLC Quant Increased +427.6K +44.7% $748.3K 0.0% 38
MARSHALL WACE, LLP Long/Short Increased +283.5K +45.7% $496.2K 0.0% 37
Affinity Asset Advisors Long/Short Growth Increased +900.7K +29.0% $1.6M 0.4% 35
Balyasny Asset Management L.P. Increased +159.9K +15.8% $279.9K 0.0% 30

Most significant buyers

By move score, not size.

  • Vestal Point Capital New · +2.60M
  • RENAISSANCE TECHNOLOGIES LLC New · +202.8K
  • Woodline Partners LP New · +1.78M
  • Squarepoint Ops LLC New · +498.9K
  • CITADEL ADVISORS LLC Increased · +427.6K

Most significant sellers

By move score, not size.

  • Logos Global Management Sold Out · -1.30M
  • EcoR1 Capital Sold Out · -1.58M
  • ADAR1 Capital Management Reduced · -94.3K
  • TWO SIGMA INVESTMENTS, LP Reduced · -8.2K

Hedge fund positions

Fund Tier Shares Previous Change Change % Portfolio wt. Action Score
Vestal Point Capital 1 2.6M 0 +2.60M — 0.1% New 61
RENAISSANCE TECHNOLOGIES LLC 1 202.8K 0 +202.8K — 0.0% New 58
Logos Global Management 2 0 1.3M -1.30M -100.0% 0.0% Sold Out 58
EcoR1 Capital 2 0 1.6M -1.58M -100.0% 0.0% Sold Out 58
Woodline Partners LP 2 1.8M 0 +1.78M — 0.0% New 56
Squarepoint Ops LLC 2 498.9K 0 +498.9K — 0.0% New 54
CITADEL ADVISORS LLC 1 1.4M 956.4K +427.6K +44.7% 0.0% Increased 38
MARSHALL WACE, LLP 2 904.1K 620.6K +283.5K +45.7% 0.0% Increased 37
Affinity Asset Advisors 2 4.0M 3.1M +900.7K +29.0% 0.4% Increased 35
Balyasny Asset Management L.P. 2 1.2M 1.0M +159.9K +15.8% 0.0% Increased 30
MILLENNIUM MANAGEMENT LLC 2 1.7M 1.5M +101.6K +6.6% 0.0% Increased 28
ADAR1 Capital Management 3 375.5K 469.9K -94.3K -20.1% 0.0% Reduced 27
Walleye Capital 3 500.4K 388.6K +111.8K +28.8% 0.0% Increased 27
TWO SIGMA INVESTMENTS, LP 2 400.7K 408.9K -8.2K -2.0% 0.0% Reduced 26
Boothbay Fund Management 4 254.4K 254.4K 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.