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NEOS Investment Management’s Biogen BIIB Stock Holding History

NEOS Investment Management’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
2026
Q2 		$5.13M Buy
23,734
+2,894
+14% +$554K 0.02% 359
2026
Q1 		$3.82M Buy
20,840
+4,306
+26% +$793K 0.02% 382
2025
Q4 		$2.91M Sell
16,534
-40,767
-71% -$6.66M 0.02% 420
2025
Q3 		$8.03M Buy
57,301
+20,490
+56% +$2.77M 0.06% 231
2025
Q2 		$4.62M Buy
36,811
+14,113
+62% +$1.76M 0.06% 253
2025
Q1 		$3.11M Buy
22,698
+5,074
+29% +$725K 0.06% 265
2024
Q4 		$2.7M Buy
17,624
+2,740
+18% +$462K 0.06% 250
2024
Q3 		$2.89M Buy
14,884
+1,893
+15% +$396K 0.09% 208
2024
Q2 		$3.01M Buy
12,991
+3,243
+33% +$705K 0.12% 150
2024
Q1 		$2.1M Buy
9,748
+2,911
+43% +$682K 0.13% 149
2023
Q4 		$1.77M Buy
6,837
+353
+5% +$86.7K 0.17% 120
2023
Q3 		$1.67M Buy
+6,484
New +$1.73M 0.21% 99

Other funds holding BIIB

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $1T AUM
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

NEOS Investment Management's BIIB Position: Q2 2026 in Review

NEOS Investment Management increased its Biogen (BIIB) stake by 14% in Q2 2026, buying an estimated $554K and bringing the position to 23,734 shares worth $5.13M. The position accounts for 0.02% of the portfolio, ranked #359.

NEOS Investment Management first reported a position in BIIB in Q3 2023 and has held it in 12 quarters since. The position peaked at $8.03M in Q3 2025. 1,044 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

  • NEOS Investment Management held 23,734 shares of Biogen worth $5.13M as of Q2 2026.
  • NEOS Investment Management bought 2,894 Biogen shares in Q2 2026, an estimated $554K.
  • Biogen made up 0.02% of NEOS Investment Management's portfolio in Q2 2026, its #359 holding.
  • NEOS Investment Management first reported a position in Biogen in Q3 2023 and has held it in 12 quarters since.
  • NEOS Investment Management's Biogen position peaked at $8.03M in Q3 2025.
  • 1,044 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on NEOS Investment Management's 13F filing for Q2 2026, filed 11 Aug 2026.