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BLUE

bluebird bio

Delisted

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

83 hedge funds and large institutions have $23.8M invested in bluebird bio in 2024 Q4 according to their latest regulatory filings, with 18 funds opening new positions, 20 increasing their positions, 32 reducing their positions, and 73 closing their positions.

New
Increased
Maintained
Reduced
Closed

731% more call options, than puts

Call options by funds: $40.7M | Put options by funds: $4.89M

27.75% more ownership

Funds ownership: 1.62%29.37% (+28%)

28% less capital invested

Capital invested by funds: $32.9M → $23.8M (-$9.05M)

38% less repeat investments, than reductions

Existing positions increased: 20 | Existing positions reduced: 32

41% less funds holding

Funds holding: 14083 (-57)

75% less first-time investments, than exits

New positions opened: 18 | Existing positions closed: 73

Holders
83
Holders Change
-57
Holders Change %
-40.71%
% of All Funds
1.09%
Holding in Top 10
1
Holding in Top 10 Change
+1
Holding in Top 10 Change %
% of All Funds
0.01%
New
18
Increased
20
Reduced
32
Closed
73
Calls
$40.7M
Puts
$4.89M
Net Calls
+$35.8M
Net Calls Change
+$36M

BLUE Hedge Fund Activity: Q4 2024 in Review

83 of the 7,592 institutional investors tracked by Wall St. Rank reported a position in bluebird bio (BLUE) for Q4 2024, worth a combined $23.8M — down 28% from $32.9M a quarter earlier.

Sellers outnumbered buyers: 73 funds closed out of BLUE and 18 opened new positions — a net loss of 55 holders — while 32 trimmed existing stakes and 20 added.

The largest buyer was UBS Group, adding an estimated $886K. The largest seller was ExodusPoint Capital Management, exiting entirely with an estimated $674K sold.

  • 83 institutional investors held bluebird bio (BLUE) as of Q4 2024, down from 140 in Q3 2024.
  • Funds reported $23.8M of bluebird bio stock for Q4 2024, down 28% quarter-over-quarter.
  • 18 funds opened new bluebird bio positions in Q4 2024 and 73 closed out, a net change of -55 holders.
  • The largest bluebird bio buyer in Q4 2024 was UBS Group, an estimated $886K added.
  • The largest bluebird bio seller in Q4 2024 was ExodusPoint Capital Management, an estimated $674K sold.

Based on aggregated 13F filings for Q4 2024.