Kayne Anderson Rudnick Investment Management’s Biogen BIIB Stock Holding History

Kayne Anderson Rudnick Investment 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	$4.38K	Buy	+20	New	+$3.83K	﹤0.01%	799
2026 Q1	–	Hold	0	–	–	–	939
2025 Q4	–	Hold	0	–	–	–	994
2025 Q3	–	Sell	-9	Closed	-$1.13K	–	1049
2025 Q2	$1.13K	Buy	+9	New	+$1.12K	﹤0.01%	916
2025 Q1	–	Sell	-12	Closed	-$1.84K	–	974
2024 Q4	$1.84K	Buy	+12	New	+$2.02K	﹤0.01%	837
2024 Q2	–	Sell	-3	Closed	-$647	–	1002
2024 Q1	$647	Hold	3	–	–	﹤0.01%	891
2023 Q4	$776	Hold	3	–	–	﹤0.01%	853
2023 Q3	$771	Hold	3	–	–	﹤0.01%	762
2023 Q2	$855	Buy	+3	New	+$893	﹤0.01%	757
2022 Q3	–	Sell	-7	Closed	-$1K	–	646
2022 Q2	$1K	Hold	7	–	–	﹤0.01%	590
2022 Q1	$1K	Sell	7 -4	-36%	-$870	﹤0.01%	620
2021 Q4	$3K	Buy	11 +4	+57%	+$1.03K	﹤0.01%	571
2021 Q3	$2K	Hold	7	–	–	﹤0.01%	553
2021 Q2	$2K	Hold	7	–	–	﹤0.01%	541
2021 Q1	$2K	Hold	7	–	–	﹤0.01%	538
2020 Q4	$2K	Hold	7	–	–	﹤0.01%	533
2020 Q3	$2K	Hold	7	–	–	﹤0.01%	501
2020 Q2	$2K	Hold	7	–	–	﹤0.01%	494
2020 Q1	$2K	Hold	7	–	–	﹤0.01%	518
2019 Q4	$2K	Buy	+7	New	+$1.94K	﹤0.01%	549

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

Kayne Anderson Rudnick Investment Management's BIIB Position: Q2 2026 in Review

Kayne Anderson Rudnick Investment Management opened a new position in Biogen (BIIB) in Q2 2026: 20 shares worth $4.38K. The stake represents ﹤0.01% of the portfolio and ranks #799 among its holdings. This is a return to the name: Kayne Anderson Rudnick Investment Management previously reported a position in BIIB as recently as Q2 2025.

Kayne Anderson Rudnick Investment Management first reported a position in BIIB in Q4 2019 and has held it in 18 quarters since. 1,041 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

Kayne Anderson Rudnick Investment Management held 20 shares of Biogen worth $4.38K as of Q2 2026.
Biogen was a new Kayne Anderson Rudnick Investment Management position in Q2 2026.
Biogen made up ﹤0.01% of Kayne Anderson Rudnick Investment Management's portfolio in Q2 2026, its #799 holding.
Kayne Anderson Rudnick Investment Management first reported a position in Biogen in Q4 2019 and has held it in 18 quarters since.
1,041 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on Kayne Anderson Rudnick Investment Management's 13F filing for Q2 2026, filed 13 Aug 2026.