William Blair & Company
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William Blair & Company’s Natera NTRA Stock Holding History

William Blair & Company’s Portfolio NTRA Stock Details NTRA Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$7.04M Buy
25,952
+19,320
+291% +$4.12M 0.02% 450
2026
Q1 		$1.33M Buy
6,632
+797
+14% +$172K ﹤0.01% 850
2025
Q4 		$1.34M Buy
5,835
+119
+2% +$24.8K ﹤0.01% 857
2025
Q3 		$920K Buy
5,716
+2,999
+110% +$474K ﹤0.01% 937
2025
Q2 		$459K Buy
2,717
+26
+1% +$4.05K ﹤0.01% 1113
2025
Q1 		$381K Hold
2,691
– – ﹤0.01% 1171
2024
Q4 		$426K Buy
+2,691
New +$392K ﹤0.01% 1150

Other funds holding NTRA

JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
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
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
DFO
Duquesne Family Office New York $5.21B AUM 87.01% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

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

William Blair & Company increased its Natera (NTRA) stake by 291% in Q2 2026, buying an estimated $4.12M and bringing the position to 25,952 shares worth $7.04M. The position accounts for 0.02% of the portfolio, ranked #450.

William Blair & Company first reported a position in NTRA in Q4 2024 and has held it in 7 quarters since. 848 funds tracked by Wall St. Rank hold NTRA as of Q2 2026.

  • William Blair & Company held 25,952 shares of Natera worth $7.04M as of Q2 2026.
  • William Blair & Company bought 19,320 Natera shares in Q2 2026, an estimated $4.12M.
  • Natera made up 0.02% of William Blair & Company's portfolio in Q2 2026, its #450 holding.
  • William Blair & Company first reported a position in Natera in Q4 2024 and has held it in 7 quarters since.
  • 848 funds tracked by Wall St. Rank held Natera as of Q2 2026.

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