North Growth Management’s Biogen BIIB Stock Holding History

North Growth 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	$10.8M	Buy	50,000 +15,000	+43%	+$2.87M	1.39%	29
2026 Q1	$6.39M	Buy	35,000 +1,000	+3%	+$184K	0.98%	39
2025 Q4	$6.02M	Hold	34,000	–	–	0.94%	39
2025 Q3	$4.73M	Hold	34,000	–	–	0.82%	41
2025 Q2	$4.27M	Hold	34,000	–	–	0.8%	42
2025 Q1	$4.65M	Buy	34,000 +16,000	+89%	+$2.29M	0.98%	40
2024 Q4	$2.73M	Buy	18,000 +7,000	+64%	+$1.18M	0.52%	41
2024 Q3	$2.21M	Hold	11,000	–	–	0.41%	43
2024 Q2	$2.63M	Hold	11,000	–	–	0.52%	41
2024 Q1	$2.44M	Hold	11,000	–	–	0.47%	43
2023 Q4	$2.95M	Hold	11,000	–	–	0.63%	42
2023 Q3	$2.93M	Sell	11,000 -1,000	-8%	-$267K	0.65%	43
2023 Q2	$3.32M	Hold	12,000	–	–	0.68%	42
2023 Q1	$3.24M	Hold	12,000	–	–	0.69%	42
2022 Q4	$3.28M	Hold	12,000	–	–	0.75%	41
2022 Q3	$3.17M	Hold	12,000	–	–	0.79%	42
2022 Q2	$2.42M	Hold	12,000	–	–	0.56%	43
2022 Q1	$2.6M	Sell	12,000 -16,000	-57%	-$3.48M	0.48%	47
2021 Q4	$6.61M	Sell	28,000 -6,000	-18%	-$1.54M	1.1%	38
2021 Q3	$9.5M	Hold	34,000	–	–	1.67%	32
2021 Q2	$11.6M	Hold	34,000	–	–	1.89%	23
2021 Q1	$9.59M	Hold	34,000	–	–	1.7%	28
2020 Q4	$8.4M	Buy	34,000 +2,000	+6%	+$516K	1.72%	31
2020 Q3	$8.99M	Buy	+32,000	New	+$8.93M	1.98%	26

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

North Growth Management's BIIB Position: Q2 2026 in Review

North Growth Management increased its Biogen (BIIB) stake by 43% in Q2 2026, buying an estimated $2.87M and bringing the position to 50,000 shares worth $10.8M. The position accounts for 1.39% of the portfolio, ranked #29.

North Growth Management first reported a position in BIIB in Q3 2020 and has held it in 24 quarters since. The position peaked at $11.6M in Q2 2021. 1,036 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

North Growth Management held 50,000 shares of Biogen worth $10.8M as of Q2 2026.
North Growth Management bought 15,000 Biogen shares in Q2 2026, an estimated $2.87M.
Biogen made up 1.39% of North Growth Management's portfolio in Q2 2026, its #29 holding.
North Growth Management first reported a position in Biogen in Q3 2020 and has held it in 24 quarters since.
North Growth Management's Biogen position peaked at $11.6M in Q2 2021.
1,036 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on North Growth Management's 13F filing for Q2 2026, filed 22 Jul 2026.