We are live on ! Find out more
BLUE

bluebird bio

Delisted

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

169 hedge funds and large institutions have $2.74B invested in bluebird bio in 2014 Q4 according to their latest regulatory filings, with 59 funds opening new positions, 53 increasing their positions, 42 reducing their positions, and 11 closing their positions.

New
Increased
Maintained
Reduced
Closed

436% more first-time investments, than exits

New positions opened: 59 | Existing positions closed: 11

224% more capital invested

Capital invested by funds: $845M → $2.74B (+$1.9B)

198% more call options, than puts

Call options by funds: $43.4M | Put options by funds: $14.5M

133% more funds holding in top 10

Funds holding in top 10: 37 (+4)

37% more funds holding

Funds holding: 123169 (+46)

26% more repeat investments, than reductions

Existing positions increased: 53 | Existing positions reduced: 42

Holders
169
Holders Change
+46
Holders Change %
+37.4%
% of All Funds
4.51%
Holding in Top 10
7
Holding in Top 10 Change
+4
Holding in Top 10 Change %
+133.33%
% of All Funds
0.19%
New
59
Increased
53
Reduced
42
Closed
11
Calls
$43.4M
Puts
$14.5M
Net Calls
+$28.8M
Net Calls Change
+$16.1M
Name Holding Trade Value Shares
Change
Change in
Stake
TC
176
TFS Capital
Pennsylvania
-$802K -1,725 Closed
Jane Street
177
Jane Street
New York
-$707K -1,522 Closed
JRP
178
Jasper Ridge Partners
California
-$512K -1,101 Closed
BNP Paribas Financial Markets
179
BNP Paribas Financial Markets
France
-$45.9K -99 Closed
PTC
180
Private Trust Company
Ohio
-$1K -2 Closed

BLUE Hedge Fund Activity: Q4 2014 in Review

169 of the 3,749 institutional investors tracked by Wall St. Rank reported a position in bluebird bio (BLUE) for Q4 2014, worth a combined $2.74B — up 224% from $845M a quarter earlier.

Buyers outnumbered sellers: 59 funds opened new BLUE positions and 11 closed out — a net gain of 48 holders — while 53 added to existing stakes and 42 trimmed.

The largest buyer was Capital World Investors, opening a new position worth an estimated $42.2M. The largest seller was Point72 Asset Management, cutting an estimated $28.4M.

  • 169 institutional investors held bluebird bio (BLUE) as of Q4 2014, up from 123 in Q3 2014.
  • Funds reported $2.74B of bluebird bio stock for Q4 2014, up 224% quarter-over-quarter.
  • 59 funds opened new bluebird bio positions in Q4 2014 and 11 closed out, a net change of +48 holders.
  • The largest bluebird bio buyer in Q4 2014 was Capital World Investors, an estimated $42.2M added.
  • The largest bluebird bio seller in Q4 2014 was Point72 Asset Management, an estimated $28.4M sold.

Based on aggregated 13F filings for Q4 2014.