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Rational Advisors’s Biogen BIIB Stock Holding History

Rational 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
2020
Q4 		– Sell
-68
Closed -$19K – 246
2020
Q3 		$19K Sell
68
-124
-65% -$34.6K 0.01% 231
2020
Q2 		$51K Buy
+192
New +$57.7K 0.03% 186
2020
Q1 		– Sell
-443
Closed -$131K – 201
2019
Q4 		$131K Buy
443
+75
+20% +$20.8K 0.06% 247
2019
Q3 		$86K Sell
368
-144
-28% -$33.5K 0.03% 305
2019
Q2 		$120K Buy
512
+486
+1,869% +$112K 0.04% 269
2019
Q1 		$6K Buy
+26
New +$8.19K ﹤0.01% 444
2018
Q4 		– Sell
-75
Closed -$26K – 523
2018
Q3 		$26K Sell
75
-519
-87% -$179K 0.01% 335
2018
Q2 		$172K Sell
594
-35
-6% -$9.84K 0.08% 204
2018
Q1 		$172K Buy
629
+36
+6% +$11.2K 0.08% 238
2017
Q4 		$189K Hold
593
– – 0.1% 194
2017
Q3 		$186K Sell
593
-400
-40% -$118K 0.1% 218
2017
Q2 		$270K Buy
993
+400
+67% +$106K 0.17% 153
2017
Q1 		$162K Buy
593
+74
+14% +$20.9K 0.11% 175
2016
Q4 		$153K Sell
519
-50
-9% -$14.8K 0.15% 140
2016
Q3 		$178K Sell
569
-2,081
-79% -$616K 0.12% 131
2016
Q2 		$641K Buy
+2,650
New +$698K 0.44% 66
2015
Q3 		$127K Hold
434
– – 0.05% 192
2015
Q2 		$175K Sell
434
-30
-6% -$12K 0.06% 182
2015
Q1 		$196K Sell
464
-158
-25% -$62.3K 0.05% 190
2014
Q4 		$211K Buy
+622
New +$201K 0.04% 216
2013
Q4 		$723K Sell
2,587
-667
-20% -$173K 0.06% 311
2013
Q3 		$783K Buy
3,254
+45
+1% +$10.1K 0.06% 346
2013
Q2 		$691K Buy
+3,209
New +$686K 0.06% 356

Other funds holding BIIB

Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 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 $3.37T AUM 44.26% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
ClearBridge Investments
ClearBridge Investments New York $121B AUM 27.52% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $860B AUM 41.15% 1-Year Est. Return

Rational Advisors's BIIB Position: Q4 2020 in Review

Rational Advisors sold out of Biogen (BIIB) in Q4 2020, closing a stake of 68 shares — an estimated $19K sold.

Rational Advisors first reported a position in BIIB in Q2 2013 and held it in 23 quarters. The position peaked at $783K in Q3 2013. 1,062 funds tracked by Wall St. Rank hold BIIB as of Q4 2020.

  • Rational Advisors reported no remaining Biogen position as of Q4 2020 after selling out during the quarter.
  • Rational Advisors sold 68 Biogen shares in Q4 2020, an estimated $19K.
  • Rational Advisors first reported a position in Biogen in Q2 2013 and held it in 23 quarters.
  • Rational Advisors's Biogen position peaked at $783K in Q3 2013.
  • 1,062 funds tracked by Wall St. Rank held Biogen as of Q4 2020.

Based on Rational Advisors's 13F filing for Q4 2020, filed 5 Feb 2021.