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Paloma Partners’s Biogen BIIB Stock Holding History

Paloma Partners’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
2024
Q1 		– Sell
-2,500
Closed -$647K – 791
2023
Q4 		$647K Buy
+2,500
New +$614K 0.02% 491
2023
Q2 		– Sell
-4,900
Closed -$1.36M – 746
2023
Q1 		$1.36M Buy
+4,900
New +$1.36M 0.05% 311
2019
Q3 		– Sell
-5,500
Closed -$1.29M – 1966
2019
Q2 		$1.29M Buy
+5,500
New +$1.27M 0.02% 596
2018
Q4 		– Sell
-3,600
Closed -$1.27M – 1290
2018
Q3 		$1.27M Sell
3,600
-15,500
-81% -$5.34M 0.02% 640
2018
Q2 		$5.54M Sell
19,100
-22,900
-55% -$6.44M 0.1% 156
2018
Q1 		$11.5M Sell
42,000
-9,300
-18% -$2.89M 0.18% 55
2017
Q4 		$16.3M Buy
51,300
+700
+1% +$225K 0.22% 63
2017
Q3 		$15.8M Sell
50,600
-62,800
-55% -$18.6M 0.22% 55
2017
Q2 		$30.8M Sell
113,400
-58,600
-34% -$15.5M 0.36% 27
2017
Q1 		$47M Sell
172,000
-769,200
-82% -$217M 0.56% 16
2016
Q4 		$267M Buy
941,200
+863,100
+1,105% +$256M 2.62% 5
2016
Q3 		$24.4M Sell
78,100
-999,000
-93% -$296M 0.31% 52
2016
Q2 		$260M Buy
1,077,100
+627,300
+139% +$165M 2.86% 5
2016
Q1 		$117M Sell
449,800
-85,200
-16% -$22.5M 1.92% 4
2015
Q4 		$164M Buy
535,000
+351,500
+192% +$101M 4.34% 2
2015
Q3 		$53.5M Buy
183,500
+135,400
+281% +$44.7M 1.24% 8
2015
Q2 		$19.4M Buy
+48,100
New +$19.3M 0.37% 51

Other funds holding BIIB

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
Pacer Advisors
Pacer Advisors Malvern, Pennsylvania $35.6B AUM 18.19% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $935B AUM
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Paloma Partners's BIIB Position: Q4 2024 in Review

Paloma Partners sold out of Biogen (BIIB) in Q4 2024, closing a stake of 1,824 shares — an estimated $354K sold.

Paloma Partners first reported a position in BIIB in Q2 2013 and held it in 36 quarters. The position peaked at $85.7M in Q4 2016. 874 funds tracked by Wall St. Rank hold BIIB as of Q4 2024.

  • Paloma Partners reported no remaining Biogen position as of Q4 2024 after selling out during the quarter.
  • Paloma Partners sold 1,824 Biogen shares in Q4 2024, an estimated $354K.
  • Paloma Partners first reported a position in Biogen in Q2 2013 and held it in 36 quarters.
  • Paloma Partners's Biogen position peaked at $85.7M in Q4 2016.
  • 874 funds tracked by Wall St. Rank held Biogen as of Q4 2024.

Based on Paloma Partners's 13F filing for Q4 2024, filed 14 Feb 2025.