Kemnay Advisory Services’s Biogen BIIB Stock Holding History

Kemnay Advisory Services’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	$13.4K	Buy	62 +3	+5%	+$574	﹤0.01%	952
2026 Q1	$10.8K	Buy	+59	New	+$10.9K	﹤0.01%	978

Other funds holding BIIB

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

Norges Bank Oslo, Norway $1T AUM

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Kemnay Advisory Services's BIIB Position: Q2 2026 in Review

Kemnay Advisory Services increased its Biogen (BIIB) stake by 5.1% in Q2 2026, buying an estimated $574 and bringing the position to 62 shares worth $13.4K. The position accounts for ﹤0.01% of the portfolio, ranked #952.

Kemnay Advisory Services first reported a position in BIIB in Q1 2026 and has held it in 2 quarters since. 1,046 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

Kemnay Advisory Services held 62 shares of Biogen worth $13.4K as of Q2 2026.
Kemnay Advisory Services bought 3 Biogen shares in Q2 2026, an estimated $574.
Biogen made up ﹤0.01% of Kemnay Advisory Services's portfolio in Q2 2026, its #952 holding.
Kemnay Advisory Services first reported a position in Biogen in Q1 2026 and has held it in 2 quarters since.
1,046 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on Kemnay Advisory Services's 13F filing for Q2 2026, filed 14 Aug 2026.