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
Q2 		$897K Buy
16,839
+4,322
+35% +$219K ﹤0.01% 1019
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

Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 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
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $1T AUM
MG
Marex Group London $23.6B AUM 57.16% 1-Year Est. Return

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

William Blair & Company increased its IonQ (IONQ) stake by 35% in Q2 2026, buying an estimated $219K and bringing the position to 16,839 shares worth $897K. The position accounts for ﹤0.01% of the portfolio, ranked #1019.

William Blair & Company first reported a position in IONQ in Q4 2024 and has held it in 6 quarters since. 786 funds tracked by Wall St. Rank hold IONQ as of Q2 2026.

  • William Blair & Company held 16,839 shares of IonQ worth $897K as of Q2 2026.
  • William Blair & Company bought 4,322 IonQ shares in Q2 2026, an estimated $219K.
  • IonQ made up ﹤0.01% of William Blair & Company's portfolio in Q2 2026, its #1019 holding.
  • William Blair & Company first reported a position in IonQ in Q4 2024 and has held it in 6 quarters since.
  • 786 funds tracked by Wall St. Rank held IonQ as of Q2 2026.

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