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MUFG Securities Americas’s Biogen BIIB Stock Holding History

MUFG Securities Americas’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 		$961K Buy
4,447
+386
+10% +$73.8K 0.05% 298
2026
Q1 		$745K Buy
4,061
+109
+3% +$20.1K 0.05% 321
2025
Q4 		$696K Sell
3,952
-2
-0.1% -$327 0.04% 329
2025
Q3 		$554K Buy
3,954
+707
+22% +$95.6K 0.04% 370
2025
Q2 		$408K Buy
3,247
+656
+25% +$81.7K 0.03% 382
2025
Q1 		$355K Buy
2,591
+440
+20% +$62.9K 0.04% 359
2024
Q4 		$329K Buy
+2,151
New +$363K 0.04% 347

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

MUFG Securities Americas's BIIB Position: Q2 2026 in Review

MUFG Securities Americas increased its Biogen (BIIB) stake by 9.5% in Q2 2026, buying an estimated $73.8K and bringing the position to 4,447 shares worth $961K. The position accounts for 0.05% of the portfolio, ranked #298.

MUFG Securities Americas first reported a position in BIIB in Q4 2024 and has held it in 7 quarters since. 1,045 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

  • MUFG Securities Americas held 4,447 shares of Biogen worth $961K as of Q2 2026.
  • MUFG Securities Americas bought 386 Biogen shares in Q2 2026, an estimated $73.8K.
  • Biogen made up 0.05% of MUFG Securities Americas's portfolio in Q2 2026, its #298 holding.
  • MUFG Securities Americas first reported a position in Biogen in Q4 2024 and has held it in 7 quarters since.
  • 1,045 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on MUFG Securities Americas's 13F filing for Q2 2026, filed 14 Aug 2026.