CWM
AVTR icon

Calamos Wealth Management’s Avantor AVTR Stock Holding History

Calamos Wealth Management’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 		$301K Buy
+38,401
New +$378K 0.01% 397
2022
Q3 		– Sell
-10,013
Closed -$311K – 318
2022
Q2 		$311K Buy
+10,013
New +$313K 0.03% 254

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 $6.07B AUM 11.2% 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

Calamos Wealth Management's AVTR Position: Q1 2026 in Review

Calamos Wealth Management opened a new position in Avantor (AVTR) in Q1 2026: 38,401 shares worth $301K. The stake represents 0.01% of the portfolio and ranks #397 among its holdings. This is a return to the name: Calamos Wealth Management previously reported a position in AVTR as recently as Q2 2022.

Calamos Wealth Management first reported a position in AVTR in Q2 2022 and has held it in 2 quarters since. The position peaked at $311K in Q2 2022. 429 funds tracked by Wall St. Rank hold AVTR as of Q1 2026.

  • Calamos Wealth Management held 38,401 shares of Avantor worth $301K as of Q1 2026.
  • Avantor was a new Calamos Wealth Management position in Q1 2026.
  • Avantor made up 0.01% of Calamos Wealth Management's portfolio in Q1 2026, its #397 holding.
  • Calamos Wealth Management first reported a position in Avantor in Q2 2022 and has held it in 2 quarters since.
  • Calamos Wealth Management's Avantor position peaked at $311K in Q2 2022.
  • 429 funds tracked by Wall St. Rank held Avantor as of Q1 2026.

Based on Calamos Wealth Management's 13F filing for Q1 2026, filed 4 May 2026.