Cobblestone Asset Management’s Berkshire Hathaway Class B BRK.B Stock Holding History

Cobblestone Asset Management’s Portfolio BRK.B Stock Details BRK.B Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$815K	Buy	+1,629	New	+$783K	0.34%	43

Other funds holding BRK.B

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

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

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

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Northern Trust Chicago, Illinois $860B AUM 41.15% 1-Year Est. Return

Gates Foundation Trust Kirkland, Washington $34.4B AUM 26.34% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Charles Schwab San Francisco, California $751B AUM 38.74% 1-Year Est. Return

Cobblestone Asset Management's BRK.B Position: Q2 2026 in Review

Cobblestone Asset Management opened a new position in Berkshire Hathaway Class B (BRK.B) in Q2 2026: 1,629 shares worth $815K. The stake represents 0.34% of the portfolio and ranks #43 among its holdings.

4,909 funds tracked by Wall St. Rank hold BRK.B as of Q2 2026.

Cobblestone Asset Management held 1,629 shares of Berkshire Hathaway Class B worth $815K as of Q2 2026.
Berkshire Hathaway Class B was a new Cobblestone Asset Management position in Q2 2026.
Berkshire Hathaway Class B made up 0.34% of Cobblestone Asset Management's portfolio in Q2 2026, its #43 holding.
4,909 funds tracked by Wall St. Rank held Berkshire Hathaway Class B as of Q2 2026.

Based on Cobblestone Asset Management's 13F filing for Q2 2026, filed 21 Jul 2026.