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BLUE

bluebird bio

Delisted

BLUE was delisted on the 30th of May, 2025.

150 hedge funds and large institutions have $78.4M invested in bluebird bio in 2024 Q2 according to their latest regulatory filings, with 23 funds opening new positions, 37 increasing their positions, 48 reducing their positions, and 30 closing their positions.

New
Increased
Maintained
Reduced
Closed

0.64% less ownership

Funds ownership: 2.67%2.04% (-0.64%)

5% less funds holding

Funds holding: 158150 (-8)

23% less repeat investments, than reductions

Existing positions increased: 37 | Existing positions reduced: 48

23% less first-time investments, than exits

New positions opened: 23 | Existing positions closed: 30

40% less call options, than puts

Call options by funds: $758K | Put options by funds: $1.25M

41% less capital invested

Capital invested by funds: $134M → $78.4M (-$55.4M)

Holders
150
Holders Change
-8
Holders Change %
-5.06%
% of All Funds
2.17%
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
23
Increased
37
Reduced
48
Closed
30
Calls
$758K
Puts
$1.25M
Net Calls
-$495K
Net Calls Change
+$517K

BLUE Hedge Fund Activity: Q2 2024 in Review

150 of the 6,924 institutional investors tracked by Wall St. Rank reported a position in bluebird bio (BLUE) for Q2 2024, worth a combined $78.4M — down 41% from $134M a quarter earlier.

Sellers outnumbered buyers: 30 funds closed out of BLUE and 23 opened new positions — a net loss of 7 holders — while 48 trimmed existing stakes and 37 added.

The largest buyer was AQR Capital Management, adding an estimated $1.01M. The largest seller was Granahan Investment Management, exiting entirely with an estimated $9.87M sold.

  • 150 institutional investors held bluebird bio (BLUE) as of Q2 2024, down from 158 in Q1 2024.
  • Funds reported $78.4M of bluebird bio stock for Q2 2024, down 41% quarter-over-quarter.
  • 23 funds opened new bluebird bio positions in Q2 2024 and 30 closed out, a net change of -7 holders.
  • The largest bluebird bio buyer in Q2 2024 was AQR Capital Management, an estimated $1.01M added.
  • The largest bluebird bio seller in Q2 2024 was Granahan Investment Management, an estimated $9.87M sold.

Based on aggregated 13F filings for Q2 2024.