Loomis, Sayles & Company
AVTR icon

Loomis, Sayles & Company’s Avantor AVTR Stock Holding History

Loomis, Sayles & Company’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
Q1 		$9.73M Buy
+1,241,432
New +$12.2M 0.01% 357
2025
Q3 		– Sell
-51,816
Closed -$697K – 715
2025
Q2 		$697K Hold
51,816
– – ﹤0.01% 493
2025
Q1 		$840K Sell
51,816
-549,253
-91% -$10.4M ﹤0.01% 476
2024
Q4 		$12.7M Sell
601,069
-148,644
-20% -$3.34M 0.02% 336
2024
Q3 		$19.4M Buy
749,713
+10,564
+1% +$259K 0.03% 260
2024
Q2 		$15.7M Sell
739,149
-24,049
-3% -$579K 0.02% 287
2024
Q1 		$19.5M Buy
763,198
+2,221
+0.3% +$52.8K 0.03% 265
2023
Q4 		$17.4M Buy
760,977
+68,625
+10% +$1.41M 0.03% 270
2023
Q3 		$14.6M Sell
692,352
-47,800
-6% -$1.02M 0.03% 282
2023
Q2 		$15.2M Sell
740,152
-8,012
-1% -$162K 0.02% 283
2023
Q1 		$15.8M Buy
748,164
+42,411
+6% +$966K 0.03% 264
2022
Q4 		$14.9M Buy
705,753
+36
+0% +$745 0.03% 263
2022
Q3 		$13.8M Sell
705,717
-13,483
-2% -$361K 0.03% 262
2022
Q2 		$22.4M Buy
719,200
+38,169
+6% +$1.19M 0.04% 227
2022
Q1 		$23M Buy
681,031
+66,036
+11% +$2.36M 0.03% 269
2021
Q4 		$25.9M Sell
614,995
-7,283
-1% -$287K 0.03% 272
2021
Q3 		$25.5M Sell
622,278
-180,703
-23% -$7.06M 0.03% 272
2021
Q2 		$28.5M Buy
802,981
+31,919
+4% +$1.03M 0.03% 254
2021
Q1 		$22.3M Buy
771,062
+89,822
+13% +$2.59M 0.03% 272
2020
Q4 		$19.2M Sell
681,240
-10,749
-2% -$277K 0.03% 262
2020
Q3 		$15.6M Buy
691,989
+144,528
+26% +$3.01M 0.02% 260
2020
Q2 		$9.31M Buy
547,461
+47,936
+10% +$780K 0.01% 326
2020
Q1 		$6.24M Sell
499,525
-115,963
-19% -$1.86M 0.01% 359
2019
Q4 		$11.2M Buy
+615,488
New +$9.8M 0.02% 334

Other funds holding AVTR

Dodge & Cox
Dodge & Cox San Francisco, California $182B AUM 14.68% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
GA
Greenhaven Associates Purchase, New York $8.66B AUM 17.37% 1-Year Est. Return
Barrow, Hanley, Mewhinney & Strauss
Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $30.5B AUM 29.95% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
ECM
Engine Capital Management New York $828M AUM 6.49% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Loomis, Sayles & Company's AVTR Position: Q1 2026 in Review

Loomis, Sayles & Company opened a new position in Avantor (AVTR) in Q1 2026: 1,241,432 shares worth $9.73M. The stake represents 0.01% of the portfolio and ranks #357 among its holdings. This is a return to the name: Loomis, Sayles & Company previously reported a position in AVTR as recently as Q2 2025.

Loomis, Sayles & Company first reported a position in AVTR in Q4 2019 and has held it in 24 quarters since. The position peaked at $28.5M in Q2 2021. 430 funds tracked by Wall St. Rank hold AVTR as of Q1 2026.

  • Loomis, Sayles & Company held 1,241,432 shares of Avantor worth $9.73M as of Q1 2026.
  • Avantor was a new Loomis, Sayles & Company position in Q1 2026.
  • Avantor made up 0.01% of Loomis, Sayles & Company's portfolio in Q1 2026, its #357 holding.
  • Loomis, Sayles & Company first reported a position in Avantor in Q4 2019 and has held it in 24 quarters since.
  • Loomis, Sayles & Company's Avantor position peaked at $28.5M in Q2 2021.
  • 430 funds tracked by Wall St. Rank held Avantor as of Q1 2026.

Based on Loomis, Sayles & Company's 13F filing for Q1 2026, filed 14 May 2026.