William Blair Investment Management
MZTI

William Blair Investment Management’s The Marzetti Company MZTI Stock Holding History

William Blair Investment Management’s Portfolio MZTI Stock Details MZTI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-547,629
Closed -$90M – 439
2025
Q4 		$90M Sell
547,629
-132,611
-19% -$22.1M 0.25% 109
2025
Q3 		$118M Sell
680,240
-193,117
-22% -$34.6M 0.3% 88
2025
Q2 		$151M Buy
873,357
+153,052
+21% +$26.4M 0.4% 73
2025
Q1 		$126M Sell
720,305
-118,063
-14% -$21.3M 0.35% 79
2024
Q4 		$145M Sell
838,368
-134,118
-14% -$24.5M 0.35% 91
2024
Q3 		$172M Sell
972,486
-41,928
-4% -$7.72M 0.42% 78
2024
Q2 		$192M Sell
1,014,414
-329,425
-25% -$62.9M 0.5% 58
2024
Q1 		$279M Sell
1,343,839
-37,677
-3% -$7.17M 0.72% 28
2023
Q4 		$230M Buy
1,381,516
+73,904
+6% +$12.4M 0.67% 40
2023
Q3 		$216M Buy
1,307,612
+145,560
+13% +$26.2M 0.72% 32
2023
Q2 		$234M Sell
1,162,052
-853
-0.1% -$173K 0.75% 28
2023
Q1 		$236M Buy
1,162,905
+414,040
+55% +$80.5M 0.82% 27
2022
Q4 		$148M Buy
+748,865
New +$142M 0.57% 60

Other funds holding MZTI

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
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
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return
Charles Schwab
Charles Schwab San Francisco, California $751B AUM 38.74% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return

William Blair Investment Management's MZTI Position: Q1 2026 in Review

William Blair Investment Management sold out of The Marzetti Company (MZTI) in Q1 2026, closing a stake of 547,629 shares — an estimated $90M sold.

William Blair Investment Management first reported a position in MZTI in Q4 2022 and held it in 13 quarters. The position peaked at $279M in Q1 2024. 363 funds tracked by Wall St. Rank hold MZTI as of Q1 2026.

  • William Blair Investment Management reported no remaining The Marzetti Company position as of Q1 2026 after selling out during the quarter.
  • William Blair Investment Management sold 547,629 The Marzetti Company shares in Q1 2026, an estimated $90M.
  • William Blair Investment Management first reported a position in The Marzetti Company in Q4 2022 and held it in 13 quarters.
  • William Blair Investment Management's The Marzetti Company position peaked at $279M in Q1 2024.
  • 363 funds tracked by Wall St. Rank held The Marzetti Company as of Q1 2026.

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