William Blair & Company
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William Blair & Company’s Mizuho Financial MFG Stock Holding History

William Blair & Company’s Portfolio MFG Stock Details MFG Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$97K Buy
+12,215
New +$103K ﹤0.01% 1592
2015
Q4 		– Sell
-12,354
Closed -$46K – 1257
2015
Q3 		$46K Buy
+12,354
New +$50.5K ﹤0.01% 1359

Other funds holding MFG

Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Natixis Advisors
Natixis Advisors Boston, Massachusetts $71.9B AUM 28.03% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
Jones Financial Companies
Jones Financial Companies Des Peres, Missouri $208B AUM 16.12% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return
CBU
CIBC Bancorp USA Chicago, Illinois $74.4B AUM
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return

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

William Blair & Company opened a new position in Mizuho Financial (MFG) in Q1 2026: 12,215 shares worth $97K. The stake represents ﹤0.01% of the portfolio and ranks #1592 among its holdings. This is a return to the name: William Blair & Company previously reported a position in MFG as recently as Q3 2015.

William Blair & Company first reported a position in MFG in Q3 2015 and has held it in 2 quarters since. 421 funds tracked by Wall St. Rank hold MFG as of Q1 2026.

  • William Blair & Company held 12,215 shares of Mizuho Financial worth $97K as of Q1 2026.
  • Mizuho Financial was a new William Blair & Company position in Q1 2026.
  • Mizuho Financial made up ﹤0.01% of William Blair & Company's portfolio in Q1 2026, its #1592 holding.
  • William Blair & Company first reported a position in Mizuho Financial in Q3 2015 and has held it in 2 quarters since.
  • 421 funds tracked by Wall St. Rank held Mizuho Financial as of Q1 2026.

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