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Cornerstone Financial Management’s Biogen BIIB Stock Holding History

Cornerstone Financial 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 		$17.7K Buy
82
+34
+71% +$6.5K 0.01% 304
2026
Q1 		$8.8K Buy
48
+9
+23% +$1.66K 0.01% 342
2025
Q4 		$6.86K Buy
+39
New +$6.37K 0.01% 358

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

Cornerstone Financial Management's BIIB Position: Q2 2026 in Review

Cornerstone Financial Management increased its Biogen (BIIB) stake by 71% in Q2 2026, buying an estimated $6.5K and bringing the position to 82 shares worth $17.7K. The position accounts for 0.01% of the portfolio, ranked #304.

Cornerstone Financial Management first reported a position in BIIB in Q4 2025 and has held it in 3 quarters since. 1,036 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

  • Cornerstone Financial Management held 82 shares of Biogen worth $17.7K as of Q2 2026.
  • Cornerstone Financial Management bought 34 Biogen shares in Q2 2026, an estimated $6.5K.
  • Biogen made up 0.01% of Cornerstone Financial Management's portfolio in Q2 2026, its #304 holding.
  • Cornerstone Financial Management first reported a position in Biogen in Q4 2025 and has held it in 3 quarters since.
  • 1,036 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on Cornerstone Financial Management's 13F filing for Q2 2026, filed 12 Aug 2026.