William Blair & Company
LONA

William Blair & Company’s LeonaBio Inc LONA Stock Holding History

William Blair & Company’s Portfolio LONA Stock Details LONA Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
-2,000
Closed -$6.04K – 1851
2025
Q2 		$6.04K Hold
2,000
– – ﹤0.01% 1758
2025
Q1 		$5.7K Hold
2,000
– – ﹤0.01% 1743
2024
Q4 		$11.7K Hold
2,000
– – ﹤0.01% 1726
2024
Q3 		$8.92K Buy
2,000
+1,000
+100% +$23.5K ﹤0.01% 1754
2024
Q2 		$26.5K Sell
1,000
-2,605
-72% -$61.4K ﹤0.01% 1665
2024
Q1 		$98.8K Hold
3,605
– – ﹤0.01% 1507
2023
Q4 		$87.6K Hold
3,605
– – ﹤0.01% 1521
2023
Q3 		$72.8K Hold
3,605
– – ﹤0.01% 1545
2023
Q2 		$106K Hold
3,605
– – ﹤0.01% 1511
2023
Q1 		$90.1K Hold
3,605
– – ﹤0.01% 1515
2022
Q4 		$114K Hold
3,605
– – ﹤0.01% 1468
2022
Q3 		$107K Hold
3,605
– – ﹤0.01% 1499
2022
Q2 		$110K Buy
+3,605
New +$330K ﹤0.01% 1526

Other funds holding LONA

PA
Perceptive Advisors New York $5.12B AUM 314.02% 1-Year Est. Return
BCM
BML Capital Management Zionsville, Indiana $156M AUM 129.82% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
PBM
Propel Bio Management Los Angeles, California $159M AUM 60.94% 1-Year Est. Return
SAM
Simplify Asset Management Las Vegas, Nevada $7.19B AUM 6.88% 1-Year Est. Return
Focus Partners Wealth
Focus Partners Wealth Boston, Massachusetts $89.9B AUM 20.5% 1-Year Est. Return
TCM
Tang Capital Management San Diego, California $1.97B AUM 125.1% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
Pathstone Holdings
Pathstone Holdings Englewood, New Jersey $25.1B AUM 22.95% 1-Year Est. Return

William Blair & Company's LONA Position: Q3 2025 in Review

William Blair & Company sold out of LeonaBio Inc (LONA) in Q3 2025, closing a stake of 2,000 shares — an estimated $6.04K sold.

William Blair & Company first reported a position in LONA in Q2 2022 and held it in 13 quarters. The position peaked at $114K in Q4 2022. 34 funds tracked by Wall St. Rank hold LONA as of Q3 2025.

  • William Blair & Company reported no remaining LeonaBio Inc position as of Q3 2025 after selling out during the quarter.
  • William Blair & Company sold 2,000 LeonaBio Inc shares in Q3 2025, an estimated $6.04K.
  • William Blair & Company first reported a position in LeonaBio Inc in Q2 2022 and held it in 13 quarters.
  • William Blair & Company's LeonaBio Inc position peaked at $114K in Q4 2022.
  • 34 funds tracked by Wall St. Rank held LeonaBio Inc as of Q3 2025.

Based on William Blair & Company's 13F filing for Q3 2025, filed 12 Nov 2025.