William Blair & Company
GH icon

William Blair & Company’s Guardant Health GH Stock Holding History

William Blair & Company’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 		$26.9M Buy
179,266
+75,622
+73% +$8.22M 0.07% 213
2026
Q1 		$9.57M Buy
+103,644
New +$10.4M 0.03% 356
2022
Q3 		– Sell
-9,129
Closed -$368K – 1847
2022
Q2 		$368K Buy
9,129
+765
+9% +$37.9K ﹤0.01% 1189
2022
Q1 		$554K Sell
8,364
-3,706
-31% -$254K ﹤0.01% 1118
2021
Q4 		$1.21M Sell
12,070
-17
-0.1% -$1.76K ﹤0.01% 896
2021
Q3 		$1.51M Sell
12,087
-5,529
-31% -$657K 0.01% 774
2021
Q2 		$2.19M Sell
17,616
-193
-1% -$26K 0.01% 684
2021
Q1 		$2.72M Buy
17,809
+2,869
+19% +$434K 0.01% 596
2020
Q4 		$1.93M Sell
14,940
-10,773
-42% -$1.24M 0.01% 661
2020
Q3 		$2.87M Buy
25,713
+6,398
+33% +$585K 0.01% 508
2020
Q2 		$1.57M Sell
19,315
-211
-1% -$17K 0.01% 612
2020
Q1 		$1.36M Buy
19,526
+1,670
+9% +$128K 0.01% 595
2019
Q4 		$1.4M Sell
17,856
-2,744
-13% -$198K 0.01% 695
2019
Q3 		$1.31M Buy
20,600
+972
+5% +$85.6K 0.01% 675
2019
Q2 		$1.69M Sell
19,628
-1,850
-9% -$141K 0.01% 624
2019
Q1 		$1.65M Buy
21,478
+2,128
+11% +$118K 0.01% 610
2018
Q4 		$727K Buy
+19,350
New +$713K 0.01% 789

Other funds holding GH

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
Capital International Investors
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

William Blair & Company's GH Position: Q2 2026 in Review

William Blair & Company increased its Guardant Health (GH) stake by 73% in Q2 2026, buying an estimated $8.22M and bringing the position to 179,266 shares worth $26.9M. The position accounts for 0.07% of the portfolio, ranked #213.

William Blair & Company first reported a position in GH in Q4 2018 and has held it in 17 quarters since. 597 funds tracked by Wall St. Rank hold GH as of Q2 2026.

  • William Blair & Company held 179,266 shares of Guardant Health worth $26.9M as of Q2 2026.
  • William Blair & Company bought 75,622 Guardant Health shares in Q2 2026, an estimated $8.22M.
  • Guardant Health made up 0.07% of William Blair & Company's portfolio in Q2 2026, its #213 holding.
  • William Blair & Company first reported a position in Guardant Health in Q4 2018 and has held it in 17 quarters since.
  • 597 funds tracked by Wall St. Rank held Guardant Health as of Q2 2026.

Based on William Blair & Company's 13F filing for Q2 2026, filed 11 Aug 2026.