Vault-13

BLUEBIRD BIO INC

COM · CUSIP 09609G100

170 institutional holders -7 vs Q2 2023
90,502,11290.5m shares reported held*
$275.1mreported value*
14 new 57 added 47 reduced 21 sold out net sold ≈ $11.5m (-3.8m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($27.8k this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $3.04. Options: 10 managers hold calls ($4.4m notional), 8 hold puts ($5.6m).

Trends to Q3 2023

Institutional holders

Managers reporting a position, each quarter

0100200Q3 22: 162Q4 22: 185Q1 23: 180Q2 23: 177Q3 23: 170170Q3 22Q4 22Q1 23Q2 23Q3 23
Numbers
QuarterHolders
Q3 2022162
Q4 2022185
Q1 2023180
Q2 2023177
Q3 2023170

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
2000200Q4 22: 102 bought or addedQ4 22: 64 cut or sold outQ4 22Q1 23: 95 bought or addedQ1 23: 71 cut or sold outQ1 23Q2 23: 90 bought or addedQ2 23: 72 cut or sold outQ2 23Q3 23: 71 bought or addedQ3 23: 68 cut or sold outQ3 23
Numbers
QuarterBought or addedCut or sold out
Q4 202210264
Q1 20239571
Q2 20239072
Q3 20237168

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$2.5m$5m$7.5m$10mQ4 22 calls: $8.5mQ4 22 puts: $4.9mQ4 22P/C 0.58Q1 23 calls: $3.5mQ1 23 puts: $4.0mQ1 23P/C 1.14Q2 23 calls: $3.9mQ2 23 puts: $5.7mQ2 23P/C 1.47Q3 23 calls: $4.4mQ3 23 puts: $5.6mQ3 23P/C 1.25
Numbers
QuarterCallsPutsP/C
Q4 2022$8.5m$4.9m0.58
Q1 2023$3.5m$4.0m1.14
Q2 2023$3.9m$5.7m1.47
Q3 2023$4.4m$5.6m1.25

Biggest buyers

AMERIPRISE FINANCIAL INC Added +2,053,639+2.1m
Woodline Partners LP Added +1,945,845+1.9m
Contrarius Investment Management Ltd New +1,308,002+1.3m
Bleichroeder LP New +900,000+900.0k
Jefferies Financial Group Inc. Added +701,447+701.4k
Birchview Capital, LP Added +661,200+661.2k
Hudson Bay Capital Management LP Added +355,000+355.0k
CITADEL ADVISORS LLC Added +343,341+343.3k
MILLENNIUM MANAGEMENT LLC New +322,187+322.2k
DEUTSCHE BANK AG\ Added +309,690+309.7k

Biggest sellers

STATE STREET CORP Reduced -3,693,014-3.7m
TANG CAPITAL MANAGEMENT LLC Reduced -3,100,000-3.1m
PFM Health Sciences, LP Reduced -1,244,187-1.2m
Walleye Capital LLC Sold out -836,760-836.8k
BANK OF AMERICA CORP /DE/ Reduced -717,587-717.6k
Ikarian Capital, LLC Sold out -412,628-412.6k
Cubist Systematic Strategies, LLC Sold out -373,488-373.5k
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Sold out -353,000-353.0k
JANE STREET GROUP, LLC Reduced -346,213-346.2k
Rafferty Asset Management, LLC Reduced -346,051-346.1k

Biggest calls

SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $1.1m375.2k shares
GROUP ONE TRADING LLC Added $1.1m352.8k shares
MILLENNIUM MANAGEMENT LLC New $456.3k150.1k shares
CITADEL ADVISORS LLC Added $435.0k143.1k shares
SIMPLEX TRADING, LLC Added $407.0k137.7k shares
JANE STREET GROUP, LLC Reduced $348.1k114.5k shares
GTS SECURITIES LLC New $340.5k112.0k shares
Caption Management, LLC Unchanged $152.0k50.0k shares
WOLVERINE TRADING, LLC Added $94.5k31.1k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Biggest puts

GROUP ONE TRADING LLC Reduced $2.1m678.4k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $1.4m456.3k shares
CITADEL ADVISORS LLC Added $842.7k277.2k shares
SIMPLEX TRADING, LLC Reduced $535.0k176.0k shares
JANE STREET GROUP, LLC Reduced $512.5k168.6k shares
Caption Management, LLC Unchanged $152.0k50.0k shares
WOLVERINE TRADING, LLC Added $69.6k22.9k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Holders, Q3 2023

#ManagerLocationShares Value% of their portfolioChangeShares change
1 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 12,665,11612.7m $38.5m $38.5m 0.00% Reduced -3.7m -3,693,014
2 BlackRock Inc. 0.00% of their portfolio New York, NY 8,828,4138.8m $26.8m $26.8m 0.00% Added +35.7k +35,691
3 PFM Health Sciences, LP 0.88% of their portfolio SAN FRANCISCO, CA 6,040,9346.0m $18.4m $18.4m 0.88% Reduced -1.2m -1,244,187
4 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 5,617,4605.6m $17.1m $17.1m 0.00% Added +46.2k +46,216
5 Pictet Asset Management Holding SA 0.02% of their portfolio CAROUGE, V8 5,147,5535.1m $15.6m $15.6m 0.02% First filing
6 Granahan Investment Management, LLC 0.56% of their portfolio WALTHAM, MA 5,137,7785.1m $15.6m $15.6m 0.56% Added +281.5k +281,456
7 TANG CAPITAL MANAGEMENT LLC 1.84% of their portfolio SAN DIEGO, CA 4,282,8274.3m $13.0m $13.0m 1.84% Reduced -3.1m -3,100,000
8 Woodline Partners LP 0.10% of their portfolio San Francisco, CA 2,728,7372.7m $8.3m $8.3m 0.10% Added +1.9m +1,945,845
9 BAKER BROS. ADVISORS LP 0.04% of their portfolio NEW YORK, NY 2,499,7152.5m $7.6m $7.6m 0.04% Unchanged
10 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 2,302,4732.3m $7.0m $7.0m 0.00% Added +2.1m +2,053,639
11 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 2,221,4942.2m $6.8m $6.8m 0.00% Added +1.7k +1,736
12 JACOBS LEVY EQUITY MANAGEMENT, INC 0.03% of their portfolio FLORHAM PARK, NJ 1,841,5841.8m $5.6m $5.6m 0.03% Reduced -249.3k -249,326
13 CREDIT SUISSE AG/ 0.01% of their portfolio ZURICH, V8 1,784,6801.8m $5.4m $5.4m 0.01% Reduced -67.1k -67,128
14 Frazier Life Sciences Management, L.P. 0.35% of their portfolio PALO ALTO, CA 1,709,9071.7m $5.2m $5.2m 0.35% Unchanged
15 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 1,688,5831.7m $5.1m $5.1m 0.00% Added +303.8k +303,763
16 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 1,670,7811.7m $5.1m $5.1m 0.00% Reduced -93.5k -93,540
17 Rafferty Asset Management, LLC 0.03% of their portfolio New York, NY 1,491,4111.5m $4.5m $4.5m 0.03% Reduced -346.1k -346,051
18 Contrarius Investment Management Ltd 0.22% of their portfolio St. Helier, Y9 1,308,0021.3m $4.0m $4.0m 0.22% New
19 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 1,217,0121.2m $3.7m $3.7m 0.00% Reduced -717.6k -717,587
20 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 1,132,0141.1m $3.4m $3.4m 0.00% Added +8.5k +8,523
21 Birchview Capital, LP 1.18% of their portfolio BURLINGTON, VT 910,400910.4k $2.8m $2.8m 1.18% Added +661.2k +661,200
22 Bleichroeder LP 0.67% of their portfolio NEW YORK, NY 900,000900.0k $2.7m $2.7m 0.67% New
23 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 782,375782.4k $2.4m $2.4m 0.00% Added +343.3k +343,341
24 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 760,774760.8k $2.3m $2.3m 0.00% Reduced -297.8k -297,834
25 Jefferies Financial Group Inc. 0.06% of their portfolio NEW YORK, NY 732,900732.9k $2.2m $2.2m 0.06% Added +701.4k +701,447
26 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 692,881692.9k $2.1m $2.1m 0.00% Added +309.7k +309,690
27 GROUP ONE TRADING LLC 0.08% of their portfolio CHICAGO, IL 664,722664.7k $2.0m $2.0m 0.08% Reduced -131.2k -131,231
28 Hudson Bay Capital Management LP 0.01% of their portfolio STAMFORD, CT 655,000655.0k $2.0m $2.0m 0.01% Added +355.0k +355,000
29 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 627,815627.8k $1.9m $1.9m 0.00% Reduced -122.9k -122,938
30 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 607,082607.1k $1.8m $1.8m 0.00% Reduced -346.2k -346,213
31 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 593,346593.3k $1.8m $1.8m 0.00% Added +80.2k +80,212
32 WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio Boston, MA 582,168582.2k $1.8m $1.8m 0.00% Added +26.6k +26,573
33 Mirae Asset Global Investments Co., Ltd. 0.00% of their portfolio SEOUL, M5 570,932570.9k $1.7m $1.7m 0.00% Added +30.5k +30,461
34 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 557,969558.0k $1.7m $1.7m 0.00% Added +30.5k +30,532
35 Lion Point Capital, LP 1.48% of their portfolio NEW YORK, NY 531,256531.3k $1.6m $1.6m 1.48% Unchanged
36 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 474,900474.9k $1.4m $1.4m 0.00% Reduced -75.3k -75,300
37 ExodusPoint Capital Management, LP 0.02% of their portfolio NEW YORK, NY 423,733423.7k $1.3m $1.3m 0.02% Added +152.1k +152,106
38 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 420,778420.8k $1.3m $1.3m 0.00% Reduced -45.0k -45,035
39 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 411,466411.5k $1.3m $1.3m 0.00% Added +6.0k +6,044
40 PANAGORA ASSET MANAGEMENT INC 0.01% of their portfolio BOSTON, MA 352,614352.6k $1.1m $1.1m 0.01% Added +11 +11
41 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 322,187322.2k $979.4k $979.4k 0.00% New
42 Nuveen Asset Management, LLC 0.00% of their portfolio CHICAGO, IL 305,308305.3k $928.1k $928.1k 0.00% Reduced -2.4k -2,447
43 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 291,701291.7k $886.8k $886.8k 0.00% Reduced -353 -353
44 UBS Group AG 0.00% of their portfolio ZURICH, V8 287,870287.9k $875.1k $875.1k 0.00% Reduced -131.3k -131,317
45 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 282,438282.4k $858.6k $858.6k 0.00% Reduced -68.4k -68,433
46 Endurant Capital Management LP 0.69% of their portfolio San Mateo, CA 251,785251.8k $765.4k $765.4k 0.69% Reduced -29.7k -29,656
47 SIMPLEX TRADING, LLC 0.03% of their portfolio CHICAGO, IL 250,705250.7k $762.0k $762.0k 0.03% Added +11.4k +11,414
48 Swiss National Bank 0.00% of their portfolio ZURICH, V8 231,600231.6k $704.1k $704.1k 0.00% Unchanged
49 PROFUND ADVISORS LLC 0.04% of their portfolio BETHESDA, MD 216,366216.4k $657.8k $657.8k 0.04% Reduced -78.3k -78,315
50 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 214,502214.5k $652.1k $652.1k 0.00% Reduced -115.8k -115,795
51 Marex Group Ltd 0.08% of their portfolio London, X0 183,275183.3k $557.2k $557.2k 0.08% Added +13.9k +13,942
52 TUDOR INVESTMENT CORP ET AL 0.01% of their portfolio STAMFORD, CT 176,718176.7k $537.2k $537.2k 0.01% Added +127.0k +127,014
53 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 166,358166.4k $505.7k $505.7k 0.00% Added +528 +528
54 FMR LLC 0.00% of their portfolio BOSTON, MA 165,221165.2k $502.3k $502.3k 0.00% Added +11.1k +11,082
55 Summit X, LLC 0.16% of their portfolio CHESTERFIELD, MO 162,368162.4k $493.6k $493.6k 0.16% Reduced -60.1k -60,077
56 ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio NASHVILLE, TN 157,640157.6k $479.2k $479.2k 0.00% Unchanged
57 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.00% of their portfolio COLUMBUS, OH 157,338157.3k $478.0k $478.0k 0.00% Unchanged
58 CAXTON ASSOCIATES LP 0.06% of their portfolio NEW YORK, NY 152,389152.4k $463.3k $463.3k 0.06% Added +99.5k +99,464
59 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 135,337135.3k $411.4k $411.4k 0.00% Added +113.4k +113,432
60 HRT FINANCIAL LP 0.00% of their portfolio NEW YORK, NY 130,097130.1k $395.0k $395.0k 0.00% Added +17.0k +17,004
61 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio WEST SACRAMENTO, CA 117,650117.7k $357.7k $357.7k 0.00% Reduced -11.5k -11,515
62 Squarepoint Ops LLC 0.00% of their portfolio NEW YORK, NY 115,706115.7k $351.7k $351.7k 0.00% Reduced -66.3k -66,350
63 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 114,195114.2k $347.2k $347.2k 0.00% Added +16.6k +16,603
64 Legal & General Group Plc 0.00% of their portfolio London, X0 103,658103.7k $315.1k $315.1k 0.00% Reduced -306.9k -306,899
65 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 98,57898.6k $299.7k $299.7k 0.00% Reduced -580 -580
66 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 88,89388.9k $270.2k $270.2k 0.00% Added +157 +157
67 Point72 Middle East FZE 0.02% of their portfolio DUBAI, C0 88,14188.1k $267.9k $267.9k 0.02% Added +24.8k +24,789
68 BIT Capital GmbH 0.03% of their portfolio BERLIN, 2M 81,15481.2k $245.1k $245.1k 0.03% Unchanged
69 VIRTUS ADVISERS, LLC 0.15% of their portfolio HARTFORD, CT 78,82778.8k $239.6k $239.6k 0.15% Reduced -10.2k -10,195
70 Mitsubishi UFJ Asset Management Co., Ltd. 0.00% of their portfolio TOKYO, M0 77,99678.0k $237.1k $237.1k 0.00% Added +4.8k +4,751
71 E Fund Management Co., Ltd. 0.02% of their portfolio GUANGZHOU, F4 66,97867.0k $204.0k $204.0k 0.02% Reduced -21.6k -21,612
72 CAPTRUST FINANCIAL ADVISORS 0.00% of their portfolio RALEIGH, NC 66,46966.5k $171.7k $171.7k 0.00% Added +17.5k +17,495
73 Mariner, LLC 0.00% of their portfolio Overland Park, KS 55,72655.7k $169.4k $169.4k 0.00% Added +20.1k +20,074
74 MetLife Investment Management, LLC 0.00% of their portfolio Whippany, NJ 54,52754.5k $165.8k $165.8k 0.00% Unchanged
75 Verition Fund Management LLC 0.00% of their portfolio GREENWICH, CT 53,65253.7k $163.1k $163.1k 0.00% New
76 AMERICAN INTERNATIONAL GROUP, INC. 0.00% of their portfolio New York, NY 53,40853.4k $162.4k $162.4k 0.00% Added +1.9k +1,898
77 GTS SECURITIES LLC 0.00% of their portfolio NEW YORK, NY 52,31552.3k $159.0k $159.0k 0.00% Added +10.8k +10,761
78 Engineers Gate Manager LP 0.01% of their portfolio NEW YORK, NY 49,68549.7k $151.0k $151.0k 0.01% New
79 Y-Intercept (Hong Kong) Ltd 0.01% of their portfolio HONG KONG, K3 48,76148.8k $148.2k $148.2k 0.01% New
80 Hennion & Walsh Asset Management, Inc. 0.01% of their portfolio Parsippany, NJ 48,66648.7k $147.9k $147.9k 0.01% Reduced -9.6k -9,608
81 AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio KANSAS CITY, MO 44,27844.3k $134.6k $134.6k 0.00% Added +13.8k +13,765
82 VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio ATLANTA, GA 43,54743.5k $132.4k $132.4k 0.00% Unchanged
83 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio Toronto, A6 43,03143.0k $130.8k $130.8k 0.00% Unchanged
84 COLONY GROUP LLC 0.00% of their portfolio Boston, MA 41,94241.9k $128.0k $128.0k 0.00% Added +2.6k +2,623
85 JANUS HENDERSON GROUP PLC 0.00% of their portfolio LONDON, X0 40,59840.6k $123.2k $123.2k 0.00% Added +3 +3
86 HORIZON KINETICS ASSET MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 38,00038.0k $115.5k $115.5k 0.00% Unchanged
87 PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio DES MOINES, IA 37,74137.7k $114.7k $114.7k 0.00% Reduced -650 -650
88 NORGES BANK 0.00% of their portfolio OSLO, Q8 37,39137.4k $113.7k $113.7k 0.00% Unchanged
89 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 34,90634.9k $106.1k $106.1k 0.00% Added +7.1k +7,059
90 Quent Capital, LLC 0.02% of their portfolio NEW YORK, NY 33,00033.0k $100.3k $100.3k 0.02% Unchanged
91 Connacht Asset Management LP 0.57% of their portfolio New York, NY 31,63431.6k $96.2k $96.2k 0.57% New
92 STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.00% of their portfolio TALLAHASSEE, FL 30,53630.5k $92.8k $92.8k 0.00% Added +160 +160
93 ARIZONA STATE RETIREMENT SYSTEM 0.00% of their portfolio PHOENIX, AZ 30,29830.3k $92.1k $92.1k 0.00% Added +421 +421
94 TEACHER RETIREMENT SYSTEM OF TEXAS 0.00% of their portfolio AUSTIN, TX 30,22030.2k $92.0k $92.0k 0.00% Added +1.4k +1,373
95 MARTINGALE ASSET MANAGEMENT L P 0.00% of their portfolio BOSTON, MA 27,96728.0k $85.0k $85.0k 0.00% Unchanged
96 Quinn Opportunity Partners LLC 0.01% of their portfolio CHARLOTTESVILLE, VA 26,62426.6k $80.9k $80.9k 0.01% Unchanged
97 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 26,09426.1k $80.0k $80.0k 0.00% Added +6.8k +6,831
98 Raymond James Financial Services Advisors, Inc. 0.00% of their portfolio ST. PETERSBURG, FL 25,44725.4k $77.4k $77.4k 0.00% Reduced -1.9k -1,862
99 WOLVERINE TRADING, LLC 0.00% of their portfolio CHICAGO, IL 25,16025.2k $76.5k $76.5k 0.00% Added +5.6k +5,585
100 Sargent Investment Group, LLC 0.02% of their portfolio BETHESDA, MD 24,32424.3k $73.9k $73.9k 0.02% Unchanged