MASSACHUSETTS FINANCIAL SERVICES CO /MA/ - BLUEBIRD BIO INC ownership

BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 238 filers reported holding BLUEBIRD BIO INC in Q1 2021. The put-call ratio across all filers is 1.69 and the average weighting 0.1%.

Quarter-by-quarter ownership
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ ownership history of BLUEBIRD BIO INC
ValueSharesWeighting
Q4 2020$19,427,000
+5.5%
448,978
+31.6%
0.01%
-14.3%
Q3 2020$18,413,000341,2890.01%
Other shareholders
BLUEBIRD BIO INC shareholders Q1 2021
NameSharesValueWeighting ↓
AlpInvest Partners B.V. 46,264$3,958,0007.80%
RTW INVESTMENTS, LP 151,594$12,969,0004.03%
APIS CAPITAL ADVISORS, LLC 30,870$2,640,0003.65%
Parametrica Management Ltd 4,084$349,0002.20%
Eventide Asset Management 419,600$35,897,0002.09%
RA Capital Management 167,367$14,318,0002.06%
DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) 483,000$41,321,0001.60%
Taylor Wealth Management Partners 38,184$3,267,0001.58%
Orbimed Advisors 1,188,900$101,710,0001.03%
CABOT WEALTH MANAGEMENT INC 34,195$2,925,0000.81%
View complete list of BLUEBIRD BIO INC shareholders