William Blair & Company
ETON icon

William Blair & Company’s Eton Pharmaceutcials ETON Stock Holding History

William Blair & Company’s Portfolio ETON Stock Details ETON Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$800K Hold
32,400
– – ﹤0.01% 1010
2025
Q4 		$548K Hold
32,400
– – ﹤0.01% 1113
2025
Q3 		$704K Hold
32,400
– – ﹤0.01% 1006
2025
Q2 		$462K Sell
32,400
-2,500
-7% -$39.5K ﹤0.01% 1111
2025
Q1 		$453K Hold
34,900
– – ﹤0.01% 1112
2024
Q4 		$465K Buy
34,900
+400
+1% +$4.06K ﹤0.01% 1120
2024
Q3 		$207K Hold
34,500
– – ﹤0.01% 1427
2024
Q2 		$114K Sell
34,500
-2,479
-7% -$8.67K ﹤0.01% 1493
2024
Q1 		$139K Hold
36,979
– – ﹤0.01% 1475
2023
Q4 		$162K Hold
36,979
– – ﹤0.01% 1439
2023
Q3 		$154K Hold
36,979
– – ﹤0.01% 1439
2023
Q2 		$129K Buy
36,979
+1,979
+6% +$7.28K ﹤0.01% 1484
2023
Q1 		$135K Sell
35,000
-3,157
-8% -$11.5K ﹤0.01% 1463
2022
Q4 		$108K Sell
38,157
-775
-2% -$2.08K ﹤0.01% 1477
2022
Q3 		$82K Hold
38,932
– – ﹤0.01% 1529
2022
Q2 		$102K Hold
38,932
– – ﹤0.01% 1540
2022
Q1 		$170K Sell
38,932
-5,068
-12% -$19.9K ﹤0.01% 1553
2021
Q4 		$189K Hold
44,000
– – ﹤0.01% 1595
2021
Q3 		$222K Hold
44,000
– – ﹤0.01% 1455
2021
Q2 		$271K Buy
+44,000
New +$326K ﹤0.01% 1383

Other funds holding ETON

OM
Opaleye Management Boston, Massachusetts $759M AUM 124.8% 1-Year Est. Return
EC
EcoR1 Capital San Francisco, California $2.36B AUM 204.53% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
NCM
Nantahala Capital Management New Canaan, Connecticut $2.72B AUM 121.58% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
NPT
National Philanthropic Trust Jenkintown, Pennsylvania $9.38B AUM 33.37% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
WIM
Westside Investment Management Santa Monica, California $761M AUM 39.85% 1-Year Est. Return

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

William Blair & Company held its Eton Pharmaceutcials (ETON) position steady in Q1 2026 at 32,400 shares worth $800K. The position accounts for ﹤0.01% of the portfolio, ranked #1010.

William Blair & Company first reported a position in ETON in Q2 2021 and has held it in 20 quarters since. 116 funds tracked by Wall St. Rank hold ETON as of Q1 2026.

  • William Blair & Company held 32,400 shares of Eton Pharmaceutcials worth $800K as of Q1 2026.
  • William Blair & Company left its Eton Pharmaceutcials share count unchanged in Q1 2026.
  • Eton Pharmaceutcials made up ﹤0.01% of William Blair & Company's portfolio in Q1 2026, its #1010 holding.
  • William Blair & Company first reported a position in Eton Pharmaceutcials in Q2 2021 and has held it in 20 quarters since.
  • 116 funds tracked by Wall St. Rank held Eton Pharmaceutcials as of Q1 2026.

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