Western Standard LLC
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Western Standard LLC’s Avantor AVTR Stock Holding History

Western Standard LLC’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
Q3 		$10.9M Sell
724,249
-1,385,735
-66% -$18.6M 2.57% 14
2026
Q2 		$20.9M Buy
+2,109,984
New +$18.2M 7.07% 5
2023
Q2 		– Sell
-150,400
Closed -$3.18M – 36
2023
Q1 		$3.18M Buy
+150,400
New +$3.43M 3.23% 10

Other funds holding AVTR

Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
GA
Greenhaven Associates Purchase, New York $7.96B AUM 12.24% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Yacktman Asset Management
Yacktman Asset Management Austin, Texas $8.38B AUM 19.52% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return
Royce & Associates
Royce & Associates New York $11B AUM 39.4% 1-Year Est. Return
Citigroup
Citigroup New York $308B AUM 40.94% 1-Year Est. Return
Private Management Group
Private Management Group Irvine, California $3.63B AUM 11.02% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $195B AUM 21.17% 1-Year Est. Return
Wedge Capital Management
Wedge Capital Management Charlotte, North Carolina $5.72B AUM 38.26% 1-Year Est. Return

Western Standard LLC's AVTR Position: Q3 2026 in Review

Western Standard LLC reduced its Avantor (AVTR) stake by 66% in Q3 2026, selling an estimated $18.6M and leaving 724,249 shares worth $10.9M. The position accounts for 2.57% of the portfolio, ranked #14.

Western Standard LLC first reported a position in AVTR in Q1 2023 and has held it in 3 quarters since. The position peaked at $20.9M in Q2 2026. 240 funds tracked by Wall St. Rank hold AVTR as of Q3 2026.

  • Western Standard LLC held 724,249 shares of Avantor worth $10.9M as of Q3 2026.
  • Western Standard LLC sold 1,385,735 Avantor shares in Q3 2026, an estimated $18.6M.
  • Avantor made up 2.57% of Western Standard LLC's portfolio in Q3 2026, its #14 holding.
  • Western Standard LLC first reported a position in Avantor in Q1 2023 and has held it in 3 quarters since.
  • Western Standard LLC's Avantor position peaked at $20.9M in Q2 2026.
  • 240 funds tracked by Wall St. Rank held Avantor as of Q3 2026.

Based on Western Standard LLC's 13F filing for Q3 2026, filed 9 Nov 2026.