Prosperity Bancshares’s Biogen BIIB Stock Holding History

Prosperity Bancshares’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	$8.64K	Buy	40 +4	+11%	+$765	0.01%	341
2026 Q1	$6.6K	Buy	36 +15	+71%	+$2.76K	0.01%	337
2025 Q4	$3.7K	Buy	+21	New	+$3.43K	﹤0.01%	344

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

Prosperity Bancshares's BIIB Position: Q2 2026 in Review

Prosperity Bancshares increased its Biogen (BIIB) stake by 11% in Q2 2026, buying an estimated $765 and bringing the position to 40 shares worth $8.64K. The position accounts for 0.01% of the portfolio, ranked #341.

Prosperity Bancshares first reported a position in BIIB in Q4 2025 and has held it in 3 quarters since. 1,036 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

Prosperity Bancshares held 40 shares of Biogen worth $8.64K as of Q2 2026.
Prosperity Bancshares bought 4 Biogen shares in Q2 2026, an estimated $765.
Biogen made up 0.01% of Prosperity Bancshares's portfolio in Q2 2026, its #341 holding.
Prosperity Bancshares first reported a position in Biogen in Q4 2025 and has held it in 3 quarters since.
1,036 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on Prosperity Bancshares's 13F filing for Q2 2026, filed 14 Aug 2026.