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BLUE

bluebird bio

Delisted

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

241 hedge funds and large institutions have $5.87B invested in bluebird bio in 2019 Q3 according to their latest regulatory filings, with 24 funds opening new positions, 81 increasing their positions, 78 reducing their positions, and 54 closing their positions.

New
Increased
Maintained
Reduced
Closed

100% more funds holding in top 10

Funds holding in top 10: 12 (+1)

4% more repeat investments, than reductions

Existing positions increased: 81 | Existing positions reduced: 78

0.21% more ownership

Funds ownership: 8.72%8.93% (+0.21%)

12% less funds holding

Funds holding: 273241 (-32)

21% less call options, than puts

Call options by funds: $81.7M | Put options by funds: $103M

26% less capital invested

Capital invested by funds: $7.92B → $5.87B (-$2.05B)

56% less first-time investments, than exits

New positions opened: 24 | Existing positions closed: 54

Holders
241
Holders Change
-32
Holders Change %
-11.72%
% of All Funds
5.28%
Holding in Top 10
2
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+100%
% of All Funds
0.04%
New
24
Increased
81
Reduced
78
Closed
54
Calls
$81.7M
Puts
$103M
Net Calls
-$21.7M
Net Calls Change
+$9.31M
Name Holding Trade Value Shares
Change
Change in
Stake
Two Sigma Investments
251
Two Sigma Investments
New York
-$3.84M -2,330 Closed
FAM
252
Fred Alger Management
New York
-$3.5M -2,124 Closed
SGH
253
Sivik Global Healthcare
Connecticut
-$3.18M -1,930 Closed
Retirement Systems of Alabama
254
Retirement Systems of Alabama
Alabama
-$3.07M -1,861 Closed
BG
255
Bellevue Group
Switzerland
-$2.31M -1,405 Closed
Balyasny Asset Management
256
Balyasny Asset Management
Illinois
-$2.28M -1,382 Closed
LCM
257
Laurion Capital Management
New York
-$1.96M -1,187 Closed
PAA
258
Peregrine Asset Advisers
Oregon
-$2.21M -1,087 Closed
Twin Tree Management
259
Twin Tree Management
Texas
-$1.23M -744 Closed
LCM
260
Landscape Capital Management
New Jersey
-$1.08M -653 Closed
CG
261
Cutler Group
California
-$872K -571 Closed
PI
262
PEAK6 Investments
Illinois
-$826K -541 Closed
SOADOR
263
State of Alaska Department of Revenue
Alaska
-$787K -479 Closed
OPPM
264
Opus Point Partners Management
New York
-$743K -451 Closed
LPL Financial
265
LPL Financial
California
-$683K -415 Closed
TAM
266
Tocqueville Asset Management
New York
-$616K -374 Closed
HF
267
HRT Financial
New York
-$478K -291 Closed
EGM
268
Engineers Gate Manager
New York
-$424K -257 Closed
PCA
269
Private Capital Advisors
Connecticut
-$356K -216 Closed
Mariner
270
Mariner
Kansas
-$298K -181 Closed
WS
271
Wedbush Securities
California
-$290K -176 Closed
OFS
272
OneAscent Financial Services
Alabama
-$265K -161 Closed
LWAC
273
Laurel Wealth Advisors (California)
California
-$256K -155 Closed
B
274
Bailard
California
-$254K -154 Closed
BRWM
275
B. Riley Wealth Management
Tennessee
-$254 -154 Closed

BLUE Hedge Fund Activity: Q3 2019 in Review

241 of the 4,561 institutional investors tracked by Wall St. Rank reported a position in bluebird bio (BLUE) for Q3 2019, worth a combined $5.87B — down 26% from $7.92B a quarter earlier.

Sellers outnumbered buyers: 54 funds closed out of BLUE and 24 opened new positions — a net loss of 30 holders — while 78 trimmed existing stakes and 81 added.

The largest buyer was Sands Capital Management, adding an estimated $126M. The largest seller was Baillie Gifford & Co, cutting an estimated $90.5M.

  • 241 institutional investors held bluebird bio (BLUE) as of Q3 2019, down from 273 in Q2 2019.
  • Funds reported $5.87B of bluebird bio stock for Q3 2019, down 26% quarter-over-quarter.
  • 24 funds opened new bluebird bio positions in Q3 2019 and 54 closed out, a net change of -30 holders.
  • The largest bluebird bio buyer in Q3 2019 was Sands Capital Management, an estimated $126M added.
  • The largest bluebird bio seller in Q3 2019 was Baillie Gifford & Co, an estimated $90.5M sold.

Based on aggregated 13F filings for Q3 2019.