Mogy Joel R Investment Counsel’s Biogen BIIB Stock Holding History

Mogy Joel R Investment Counsel’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	$1.35M	Hold	6,260	–	–	0.08%	59
2026 Q1	$1.15M	Hold	6,260	–	–	0.07%	59
2025 Q4	$1.1M	Hold	6,260	–	–	0.06%	62
2025 Q3	$877K	Hold	6,260	–	–	0.05%	67
2025 Q2	$786K	Hold	6,260	–	–	0.05%	69
2025 Q1	$857K	Sell	6,260 -600	-9%	-$85.8K	0.06%	67
2024 Q4	$1.05M	Hold	6,860	–	–	0.06%	68
2024 Q3	$1.33M	Hold	6,860	–	–	0.08%	61
2024 Q2	$1.59M	Sell	6,860 -200	-3%	-$43.5K	0.1%	53
2024 Q1	$1.52M	Buy	7,060 +100	+1%	+$23.4K	0.1%	55
2023 Q4	$1.8M	Hold	6,960	–	–	0.14%	53
2023 Q3	$1.79M	Hold	6,960	–	–	0.15%	57
2023 Q2	$1.98M	Hold	6,960	–	–	0.16%	57
2023 Q1	$1.94M	Hold	6,960	–	–	0.17%	53
2022 Q4	$1.93M	Hold	6,960	–	–	0.19%	52
2022 Q3	$1.86M	Hold	6,960	–	–	0.19%	52
2022 Q2	$1.42M	Buy	6,960 +460	+7%	+$94K	0.14%	63
2022 Q1	$1.37M	Hold	6,500	–	–	0.11%	68
2021 Q4	$1.56M	Hold	6,500	–	–	0.11%	63
2021 Q3	$1.84M	Hold	6,500	–	–	0.15%	56
2021 Q2	$2.25M	Hold	6,500	–	–	0.19%	53
2021 Q1	$1.82M	Hold	6,500	–	–	0.17%	57
2020 Q4	$1.59M	Hold	6,500	–	–	0.16%	59
2020 Q3	$1.84M	Hold	6,500	–	–	0.2%	54
2020 Q2	$1.74M	Hold	6,500	–	–	0.21%	54
2020 Q1	$2.06M	Hold	6,500	–	–	0.29%	51
2019 Q4	$1.93M	Hold	6,500	–	–	0.23%	58
2019 Q3	$1.51M	Hold	6,500	–	–	0.19%	67
2019 Q2	$1.52M	Hold	6,500	–	–	0.2%	63
2019 Q1	$1.54M	Hold	6,500	–	–	0.21%	64
2018 Q4	$1.96M	Hold	6,500	–	–	0.3%	56
2018 Q3	$2.3M	Hold	6,500	–	–	0.31%	56
2018 Q2	$1.89M	Hold	6,500	–	–	0.28%	60
2018 Q1	$1.78M	Hold	6,500	–	–	0.28%	63
2017 Q4	$2.07M	Hold	6,500	–	–	0.32%	55
2017 Q3	$2.04M	Hold	6,500	–	–	0.34%	57
2017 Q2	$1.76M	Hold	6,500	–	–	0.3%	60
2017 Q1	$1.78M	Hold	6,500	–	–	0.31%	60
2016 Q4	$1.84M	Hold	6,500	–	–	0.33%	63
2016 Q3	$2.04M	Hold	6,500	–	–	0.37%	60
2016 Q2	$1.57M	Hold	6,500	–	–	0.29%	70
2016 Q1	$1.69M	Buy	6,500 +5,850	+900%	+$1.55M	0.31%	65
2015 Q4	$1.99K	Sell	650 -5,850	-90%	-$1.68M	0.37%	58
2015 Q3	$1.9M	Hold	6,500	–	–	0.38%	57
2015 Q2	$2.63M	Hold	6,500	–	–	0.5%	53
2015 Q1	$2.75M	Hold	6,500	–	–	0.51%	54
2014 Q4	$2.21M	Hold	6,500	–	–	0.42%	60
2014 Q3	$2.15M	Hold	6,500	–	–	0.43%	55
2014 Q2	$2.05M	Hold	6,500	–	–	0.41%	61
2014 Q1	$1.99M	Hold	6,500	–	–	0.41%	58
2013 Q4	$1.82M	Hold	6,500	–	–	0.38%	60
2013 Q3	$1.56M	Hold	6,500	–	–	0.36%	63
2013 Q2	$1.4M	Buy	+6,500	New	+$1.39M	0.34%	64

Other funds holding BIIB

Pictet Asset Management Carouge, Switzerland $105B AUM 38.07% 1-Year Est. Return

Robeco Institutional Asset Management Rotterdam, Netherlands $81.4B AUM 40.71% 1-Year Est. Return

AIM

Artemis Investment Management Edinburgh, United Kingdom $11.2B AUM 80.72% 1-Year Est. Return

Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $175B AUM 40.63% 1-Year Est. Return

Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return

AAMU

AEGON Asset Management (UK) Edinburgh, United Kingdom $9.38B AUM 48.94% 1-Year Est. Return

Aberdeen Group Edinburgh, United Kingdom $71.2B AUM 41.74% 1-Year Est. Return

New York State Teachers Retirement System (NYSTRS) Albany, New York $54.2B AUM 43.77% 1-Year Est. Return

ECSS

Eurizon Capital SGR SpA Milan $37.3B AUM

ADEF

Adams Diversified Equity Fund Baltimore, Maryland $3.27B AUM 45.57% 1-Year Est. Return

Mogy Joel R Investment Counsel's BIIB Position: Q2 2026 in Review

Mogy Joel R Investment Counsel held its Biogen (BIIB) position steady in Q2 2026 at 6,260 shares worth $1.35M. The position accounts for 0.08% of the portfolio, ranked #59.

Mogy Joel R Investment Counsel first reported a position in BIIB in Q2 2013 and has held it in 53 quarters since. The position peaked at $2.75M in Q1 2015. 405 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

Mogy Joel R Investment Counsel held 6,260 shares of Biogen worth $1.35M as of Q2 2026.
Mogy Joel R Investment Counsel left its Biogen share count unchanged in Q2 2026.
Biogen made up 0.08% of Mogy Joel R Investment Counsel's portfolio in Q2 2026, its #59 holding.
Mogy Joel R Investment Counsel first reported a position in Biogen in Q2 2013 and has held it in 53 quarters since.
Mogy Joel R Investment Counsel's Biogen position peaked at $2.75M in Q1 2015.
405 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on Mogy Joel R Investment Counsel's 13F filing for Q2 2026, filed 14 Jul 2026.