Collaborative Fund Advisors’s Biogen BIIB Stock Holding History

Collaborative Fund Advisors’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	–	Sell	-1,327	Closed	-$243K	–	187
2026 Q1	$243K	Buy	+1,327	New	+$245K	0.15%	143

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

Collaborative Fund Advisors's BIIB Position: Q2 2026 in Review

Collaborative Fund Advisors sold out of Biogen (BIIB) in Q2 2026, closing a stake of 1,327 shares — an estimated $243K sold.

Collaborative Fund Advisors first reported a position in BIIB in Q1 2026 and held it in 1 quarter. The position peaked at $243K in Q1 2026. 1,034 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

Collaborative Fund Advisors reported no remaining Biogen position as of Q2 2026 after selling out during the quarter.
Collaborative Fund Advisors sold 1,327 Biogen shares in Q2 2026, an estimated $243K.
Collaborative Fund Advisors first reported a position in Biogen in Q1 2026 and held it in 1 quarter.
Collaborative Fund Advisors's Biogen position peaked at $243K in Q1 2026.
1,034 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on Collaborative Fund Advisors's 13F filing for Q2 2026, filed 31 Jul 2026.