William Blair & Company
IONQ icon

William Blair & Company’s IonQ IONQ Stock Holding History

William Blair & Company’s Portfolio IONQ Stock Details IONQ Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$361K Buy
12,517
+149
+1% +$5.72K ﹤0.01% 1260
2025
Q4 		$555K Buy
12,368
+1,423
+13% +$79.7K ﹤0.01% 1107
2025
Q3 		$673K Buy
10,945
+2,520
+30% +$118K ﹤0.01% 1022
2025
Q2 		$362K Buy
+8,425
New +$282K ﹤0.01% 1189
2025
Q1 		– Sell
-6,219
Closed -$260K – 1837
2024
Q4 		$260K Buy
+6,219
New +$156K ﹤0.01% 1339

Other funds holding IONQ

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
DE
Defiance ETFs New York $6.98B AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
MG
Marex Group London $15.8B AUM 31.44% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

William Blair & Company's IONQ Position: Q1 2026 in Review

William Blair & Company increased its IonQ (IONQ) stake by 1.2% in Q1 2026, buying an estimated $5.72K and bringing the position to 12,517 shares worth $361K. The position accounts for ﹤0.01% of the portfolio, ranked #1260.

William Blair & Company first reported a position in IONQ in Q4 2024 and has held it in 5 quarters since. The position peaked at $673K in Q3 2025. 629 funds tracked by Wall St. Rank hold IONQ as of Q1 2026.

  • William Blair & Company held 12,517 shares of IonQ worth $361K as of Q1 2026.
  • William Blair & Company bought 149 IonQ shares in Q1 2026, an estimated $5.72K.
  • IonQ made up ﹤0.01% of William Blair & Company's portfolio in Q1 2026, its #1260 holding.
  • William Blair & Company first reported a position in IonQ in Q4 2024 and has held it in 5 quarters since.
  • William Blair & Company's IonQ position peaked at $673K in Q3 2025.
  • 629 funds tracked by Wall St. Rank held IonQ as of Q1 2026.

Based on William Blair & Company's 13F filing for Q1 2026, filed 8 May 2026.