Privium Fund Management’s Biogen BIIB Stock Holding History

Privium Fund 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	$10.5M	Buy	48,400 +4,600	+11%	+$880K	1.92%	18
2026 Q1	$8.03M	Sell	43,800 -29,680	-40%	-$5.47M	1.67%	18
2025 Q4	$12.9M	Buy	73,480 +21,555	+42%	+$3.52M	2.38%	12
2025 Q3	$7.27M	Buy	51,925 +31,425	+153%	+$4.25M	1.31%	16
2025 Q2	$2.67M	Buy	+20,500	New	+$2.55M	0.58%	21
2024 Q3	–	Sell	-7,000	Closed	-$1.6M	–	89
2024 Q2	$1.6M	Sell	7,000 -160	-2%	-$34.8K	0.41%	37
2024 Q1	$1.54M	Buy	7,160 +3,300	+85%	+$773K	0.41%	34
2023 Q4	$1.03M	Buy	3,860 +772	+25%	+$190K	0.29%	39
2023 Q3	$794K	Sell	3,088 -732	-19%	-$196K	0.24%	47
2023 Q2	$1.08M	Hold	3,820	–	–	0.31%	45
2023 Q1	$1.06M	Buy	3,820 +1,100	+40%	+$304K	0.36%	37
2022 Q4	$751K	Buy	+2,720	New	+$768K	0.28%	39
2022 Q2	–	Sell	-13,400	Closed	-$2.82M	–	263
2022 Q1	$2.82M	Buy	+13,400	New	+$2.91M	0.62%	34

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 $3.37T AUM 44.26% 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

Privium Fund Management's BIIB Position: Q2 2026 in Review

Privium Fund Management increased its Biogen (BIIB) stake by 11% in Q2 2026, buying an estimated $880K and bringing the position to 48,400 shares worth $10.5M. The position accounts for 1.92% of the portfolio, ranked #18.

Privium Fund Management first reported a position in BIIB in Q1 2022 and has held it in 13 quarters since. The position peaked at $12.9M in Q4 2025. 1,036 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

Privium Fund Management held 48,400 shares of Biogen worth $10.5M as of Q2 2026.
Privium Fund Management bought 4,600 Biogen shares in Q2 2026, an estimated $880K.
Biogen made up 1.92% of Privium Fund Management's portfolio in Q2 2026, its #18 holding.
Privium Fund Management first reported a position in Biogen in Q1 2022 and has held it in 13 quarters since.
Privium Fund Management's Biogen position peaked at $12.9M in Q4 2025.
1,036 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on Privium Fund Management's 13F filing for Q2 2026, filed 7 Aug 2026.