Ilmarinen Mutual Pension Insurance’s Biogen BIIB Stock Holding History

Ilmarinen Mutual Pension Insurance’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 Q1	$3.19M	Hold	17,400	–	–	0.03%	325
2025 Q4	$3.06M	Sell	17,400 -6,600	-28%	-$1.08M	0.02%	262
2025 Q3	$3.36M	Hold	24,000	–	–	0.03%	225
2025 Q2	$3.01M	Hold	24,000	–	–	0.02%	237
2025 Q1	$3.28M	Hold	24,000	–	–	0.03%	209
2024 Q4	$3.67M	Buy	24,000 +6,000	+33%	+$1.01M	0.03%	211
2024 Q3	$3.49M	Hold	18,000	–	–	0.04%	187
2024 Q2	$4.17M	Hold	18,000	–	–	0.05%	166
2024 Q1	$3.88M	Hold	18,000	–	–	0.05%	179
2023 Q4	$4.66M	Hold	18,000	–	–	0.06%	175
2023 Q3	$4.63M	Hold	18,000	–	–	0.06%	166
2023 Q2	$5.13M	Hold	18,000	–	–	0.07%	164
2023 Q1	$5M	Hold	18,000	–	–	0.07%	154
2022 Q4	$4.99M	Hold	18,000	–	–	0.08%	158
2022 Q3	$4.81M	Hold	18,000	–	–	0.08%	141
2022 Q2	$3.67M	Hold	18,000	–	–	0.06%	172
2022 Q1	$3.79M	Hold	18,000	–	–	0.05%	178
2021 Q4	$4.32M	Hold	18,000	–	–	0.05%	168
2021 Q3	$5.09M	Hold	18,000	–	–	0.05%	149
2021 Q2	$6.23M	Hold	18,000	–	–	0.07%	133
2021 Q1	$5.04M	Hold	18,000	–	–	0.06%	151
2020 Q4	$4.41M	Hold	18,000	–	–	0.05%	156
2020 Q3	$5.11M	Hold	18,000	–	–	0.07%	134
2020 Q2	$4.82M	Hold	18,000	–	–	0.07%	136
2020 Q1	$5.7M	Hold	18,000	–	–	0.11%	95
2019 Q4	$5.34M	Sell	18,000 -17,000	-49%	-$4.72M	0.09%	129
2019 Q3	$8.15M	Buy	+35,000	New	+$8.15M	0.15%	80

Other funds holding BIIB

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Ilmarinen Mutual Pension Insurance's BIIB Position: Q1 2026 in Review

Ilmarinen Mutual Pension Insurance held its Biogen (BIIB) position steady in Q1 2026 at 17,400 shares worth $3.19M. The position accounts for 0.03% of the portfolio, ranked #325.

Ilmarinen Mutual Pension Insurance first reported a position in BIIB in Q3 2019 and has held it in 27 quarters since. The position peaked at $8.15M in Q3 2019. 1,003 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

Ilmarinen Mutual Pension Insurance held 17,400 shares of Biogen worth $3.19M as of Q1 2026.
Ilmarinen Mutual Pension Insurance left its Biogen share count unchanged in Q1 2026.
Biogen made up 0.03% of Ilmarinen Mutual Pension Insurance's portfolio in Q1 2026, its #325 holding.
Ilmarinen Mutual Pension Insurance first reported a position in Biogen in Q3 2019 and has held it in 27 quarters since.
Ilmarinen Mutual Pension Insurance's Biogen position peaked at $8.15M in Q3 2019.
1,003 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on Ilmarinen Mutual Pension Insurance's 13F filing for Q1 2026, filed 12 May 2026.