Oakum Bay Capital’s CoStar Group CSGP Stock Holding History

Oakum Bay Capital’s Portfolio CSGP Stock Details CSGP Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$1.65M	Buy	40,965 +35,465	+645%	+$1.85M	0.89%	16
2025 Q4	$370K	Buy	+5,500	New	+$390K	0.18%	35

Other funds holding CSGP

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

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

Principal Financial Group Des Moines, Iowa $204B AUM 27.99% 1-Year Est. Return

BAMCO Inc New York $66.6B AUM 7.35% 1-Year Est. Return

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

Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return

Baillie Gifford & Co Edinburgh, United Kingdom $110B AUM 4.8% 1-Year Est. Return

Polen Capital Management Boca Raton, Florida $11.6B AUM 8.03% 1-Year Est. Return

Oakum Bay Capital's CSGP Position: Q1 2026 in Review

Oakum Bay Capital increased its CoStar Group (CSGP) stake by 645% in Q1 2026, buying an estimated $1.85M and bringing the position to 40,965 shares worth $1.65M. The position accounts for 0.89% of the portfolio, ranked #16.

Oakum Bay Capital first reported a position in CSGP in Q4 2025 and has held it in 2 quarters since. 797 funds tracked by Wall St. Rank hold CSGP as of Q1 2026.

Oakum Bay Capital held 40,965 shares of CoStar Group worth $1.65M as of Q1 2026.
Oakum Bay Capital bought 35,465 CoStar Group shares in Q1 2026, an estimated $1.85M.
CoStar Group made up 0.89% of Oakum Bay Capital's portfolio in Q1 2026, its #16 holding.
Oakum Bay Capital first reported a position in CoStar Group in Q4 2025 and has held it in 2 quarters since.
797 funds tracked by Wall St. Rank held CoStar Group as of Q1 2026.

Based on Oakum Bay Capital's 13F filing for Q1 2026, filed 15 May 2026.