Massachusetts Financial Services
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Massachusetts Financial Services’s Avantor AVTR Stock Holding History

Massachusetts Financial Services’s Portfolio AVTR Stock Details AVTR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$455K Sell
45,912
-36,834
-45% -$317K ﹤0.01% 956
2026
Q1 		$649K Sell
82,746
-7,131,662
-99% -$70.2M ﹤0.01% 878
2025
Q4 		$82.7M Sell
7,214,408
-287,678
-4% -$3.54M 0.03% 402
2025
Q3 		$93.6M Buy
7,502,086
+1,640,120
+28% +$21.1M 0.03% 381
2025
Q2 		$78.9M Buy
+5,861,966
New +$80.2M 0.03% 410
2022
Q1 		– Sell
-100,954
Closed -$4.25M – 865
2021
Q4 		$4.25M Sell
100,954
-41,774
-29% -$1.65M ﹤0.01% 709
2021
Q3 		$5.84M Sell
142,728
-289,724
-67% -$11.3M ﹤0.01% 702
2021
Q2 		$15.4M Sell
432,452
-13,994
-3% -$453K ﹤0.01% 642
2021
Q1 		$12.9M Buy
446,446
+329,308
+281% +$9.51M ﹤0.01% 643
2020
Q4 		$3.3M Sell
117,138
-6,403
-5% -$165K ﹤0.01% 696
2020
Q3 		$2.78M Buy
123,541
+24,472
+25% +$509K ﹤0.01% 692
2020
Q2 		$1.68M Buy
+99,069
New +$1.61M ﹤0.01% 702

Other funds holding AVTR

Dodge & Cox
Dodge & Cox San Francisco, California $191B AUM 17.5% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
GA
Greenhaven Associates Purchase, New York $8.66B AUM 17.37% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
ECM
Engine Capital Management New York $1.03B AUM 4.33% 1-Year Est. Return
Barrow, Hanley, Mewhinney & Strauss
Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $33B AUM 40.62% 1-Year Est. Return
NMC
New Mountain Capital New York $139M AUM 26.45% 1-Year Est. Return

Massachusetts Financial Services's AVTR Position: Q2 2026 in Review

Massachusetts Financial Services reduced its Avantor (AVTR) stake by 45% in Q2 2026, selling an estimated $317K and leaving 45,912 shares worth $455K. The position accounts for ﹤0.01% of the portfolio, ranked #956.

Massachusetts Financial Services first reported a position in AVTR in Q2 2020 and has held it in 12 quarters since. The position peaked at $93.6M in Q3 2025. 460 funds tracked by Wall St. Rank hold AVTR as of Q2 2026.

  • Massachusetts Financial Services held 45,912 shares of Avantor worth $455K as of Q2 2026.
  • Massachusetts Financial Services sold 36,834 Avantor shares in Q2 2026, an estimated $317K.
  • Avantor made up ﹤0.01% of Massachusetts Financial Services's portfolio in Q2 2026, its #956 holding.
  • Massachusetts Financial Services first reported a position in Avantor in Q2 2020 and has held it in 12 quarters since.
  • Massachusetts Financial Services's Avantor position peaked at $93.6M in Q3 2025.
  • 460 funds tracked by Wall St. Rank held Avantor as of Q2 2026.

Based on Massachusetts Financial Services's 13F filing for Q2 2026, filed 3 Aug 2026.