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BlackRock Advisors’s Biogen BIIB Stock Holding History

BlackRock Advisors’s Portfolio BIIB Stock Details BIIB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2016
Q4 		$411M Buy
1,448,464
+257,964
+22% +$76.5M 0.42% 52
2016
Q3 		$373M Buy
1,190,500
+128,533
+12% +$38.1M 0.38% 61
2016
Q2 		$257M Sell
1,061,967
-8,080
-0.8% -$2.13M 0.26% 94
2016
Q1 		$279M Sell
1,070,047
-286,524
-21% -$75.7M 0.29% 83
2015
Q4 		$416M Sell
1,356,571
-202,049
-13% -$58.1M 0.44% 56
2015
Q3 		$455M Buy
1,558,620
+755,770
+94% +$250M 0.49% 42
2015
Q2 		$324M Buy
802,850
+77,722
+11% +$31.2M 0.34% 81
2015
Q1 		$306M Sell
725,128
-55,059
-7% -$21.7M 0.31% 83
2014
Q4 		$265M Sell
780,187
-745,660
-49% -$241M 0.27% 97
2014
Q3 		$505M Sell
1,525,847
-274,019
-15% -$90.4M 0.5% 46
2014
Q2 		$568M Buy
1,799,866
+339,384
+23% +$102M 0.54% 40
2014
Q1 		$447M Buy
1,460,482
+468,965
+47% +$149M 0.44% 51
2013
Q4 		$277M Buy
991,517
+11,411
+1% +$2.95M 0.27% 93
2013
Q3 		$236M Buy
980,106
+155,331
+19% +$34.8M 0.24% 109
2013
Q2 		$177M Buy
+824,775
New +$176M 0.19% 131

Other funds holding BIIB

Primecap Management
Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
ClearBridge Investments
ClearBridge Investments New York $115B AUM 24.78% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BIT
BlackRock Institutional Trust San Francisco, California $675B AUM 16.07% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
BFA
BlackRock Fund Advisors San Francisco, California $542B AUM 18.13% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

BlackRock Advisors's BIIB Position: Q4 2016 in Review

BlackRock Advisors increased its Biogen (BIIB) stake by 22% in Q4 2016, buying an estimated $76.5M and bringing the position to 1,448,464 shares worth $411M. The position accounts for 0.42% of the portfolio, ranked #52.

BlackRock Advisors first reported a position in BIIB in Q2 2013 and has held it in 15 quarters since. The position peaked at $568M in Q2 2014. 1,025 funds tracked by Wall St. Rank hold BIIB as of Q4 2016.

  • BlackRock Advisors held 1,448,464 shares of Biogen worth $411M as of Q4 2016.
  • BlackRock Advisors bought 257,964 Biogen shares in Q4 2016, an estimated $76.5M.
  • Biogen made up 0.42% of BlackRock Advisors's portfolio in Q4 2016, its #52 holding.
  • BlackRock Advisors first reported a position in Biogen in Q2 2013 and has held it in 15 quarters since.
  • BlackRock Advisors's Biogen position peaked at $568M in Q2 2014.
  • 1,025 funds tracked by Wall St. Rank held Biogen as of Q4 2016.

Based on BlackRock Advisors's 13F filing for Q4 2016, filed 10 Feb 2017.