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Headlands Technologies’s Biogen BIIB Stock Holding History

Headlands Technologies’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
2025
Q3 		– Sell
-22,791
Closed -$2.86M – 675
2025
Q2 		$2.86M Sell
22,791
-1,978
-8% -$246K 0.34% 65
2025
Q1 		$3.39M Sell
24,769
-3,608
-13% -$516K 0.39% 62
2024
Q4 		$4.34M Buy
28,377
+27,129
+2,174% +$4.58M 0.44% 47
2024
Q3 		$242K Buy
+1,248
New +$261K 0.03% 477
2024
Q1 		– Sell
-1,693
Closed -$438K – 1254
2023
Q4 		$438K Buy
+1,693
New +$416K 0.13% 153

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 $169B AUM 114.72% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 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
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Point72 Asset Management
Point72 Asset Management Stamford, Connecticut $90.7B AUM 77.13% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

Headlands Technologies's BIIB Position: Q3 2025 in Review

Headlands Technologies sold out of Biogen (BIIB) in Q3 2025, closing a stake of 22,791 shares — an estimated $2.86M sold.

Headlands Technologies first reported a position in BIIB in Q4 2023 and held it in 5 quarters. The position peaked at $4.34M in Q4 2024. 908 funds tracked by Wall St. Rank hold BIIB as of Q3 2025.

  • Headlands Technologies reported no remaining Biogen position as of Q3 2025 after selling out during the quarter.
  • Headlands Technologies sold 22,791 Biogen shares in Q3 2025, an estimated $2.86M.
  • Headlands Technologies first reported a position in Biogen in Q4 2023 and held it in 5 quarters.
  • Headlands Technologies's Biogen position peaked at $4.34M in Q4 2024.
  • 908 funds tracked by Wall St. Rank held Biogen as of Q3 2025.

Based on Headlands Technologies's 13F filing for Q3 2025, filed 12 Nov 2025.