Prosperity Bancshares’s Costco COST Stock Holding History

Prosperity Bancshares’s Portfolio COST Stock Details COST Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$468K	Buy	500 +45	+10%	+$44.8K	0.31%	59
2026 Q1	$453K	Buy	455 +111	+32%	+$108K	0.36%	54
2025 Q4	$297K	Buy	+344	New	+$312K	0.27%	68

Other funds holding COST

BlackRock New York $6.73T AUM 46.02% 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

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

Norges Bank Oslo, Norway $1T AUM

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Prosperity Bancshares's COST Position: Q2 2026 in Review

Prosperity Bancshares increased its Costco (COST) stake by 9.9% in Q2 2026, buying an estimated $44.8K and bringing the position to 500 shares worth $468K. The position accounts for 0.31% of the portfolio, ranked #59.

Prosperity Bancshares first reported a position in COST in Q4 2025 and has held it in 3 quarters since. 4,224 funds tracked by Wall St. Rank hold COST as of Q2 2026.

Prosperity Bancshares held 500 shares of Costco worth $468K as of Q2 2026.
Prosperity Bancshares bought 45 Costco shares in Q2 2026, an estimated $44.8K.
Costco made up 0.31% of Prosperity Bancshares's portfolio in Q2 2026, its #59 holding.
Prosperity Bancshares first reported a position in Costco in Q4 2025 and has held it in 3 quarters since.
4,224 funds tracked by Wall St. Rank held Costco as of Q2 2026.

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