Osterweis Capital Management’s Guardant Health GH Stock Holding History

Osterweis Capital Management’s Portfolio GH Stock Details GH Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$14.6M	Sell	97,320 -51,626	-35%	-$5.61M	0.69%	48
2026 Q1	$13.8M	Buy	148,946 +13,010	+10%	+$1.31M	0.71%	47
2025 Q4	$13.9M	Sell	135,936 -79,075	-37%	-$7.07M	0.59%	47
2025 Q3	$13.4M	Sell	215,011 -25,305	-11%	-$1.38M	0.61%	47
2025 Q2	$12.5M	Sell	240,316 -56,255	-19%	-$2.51M	0.6%	48
2025 Q1	$12.6M	Buy	+296,571	New	+$12.8M	0.62%	53
2021 Q1	–	Sell	-39,850	Closed	-$5.14M	–	139
2020 Q4	$5.14M	Buy	39,850 +16,230	+69%	+$1.87M	0.31%	82
2020 Q3	$2.64M	Buy	+23,620	New	+$2.16M	0.18%	91
2020 Q2	–	Sell	-45,220	Closed	-$3.15M	–	118
2020 Q1	$3.15M	Buy	45,220 +10,690	+31%	+$820K	0.26%	72
2019 Q4	$2.7M	Buy	+34,530	New	+$2.49M	0.19%	79

Other funds holding GH

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

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

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

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

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return

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

DTC

Deep Track Capital Greenwich, Connecticut $6.87B AUM 205.24% 1-Year Est. Return

Osterweis Capital Management's GH Position: Q2 2026 in Review

Osterweis Capital Management reduced its Guardant Health (GH) stake by 35% in Q2 2026, selling an estimated $5.61M and leaving 97,320 shares worth $14.6M. The position accounts for 0.69% of the portfolio, ranked #48.

Osterweis Capital Management first reported a position in GH in Q4 2019 and has held it in 10 quarters since. 600 funds tracked by Wall St. Rank hold GH as of Q2 2026.

Osterweis Capital Management held 97,320 shares of Guardant Health worth $14.6M as of Q2 2026.
Osterweis Capital Management sold 51,626 Guardant Health shares in Q2 2026, an estimated $5.61M.
Guardant Health made up 0.69% of Osterweis Capital Management's portfolio in Q2 2026, its #48 holding.
Osterweis Capital Management first reported a position in Guardant Health in Q4 2019 and has held it in 10 quarters since.
600 funds tracked by Wall St. Rank held Guardant Health as of Q2 2026.

Based on Osterweis Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.