Robert Olstein's AVTR Position Overview
Robert Olstein (via Olstein Capital Management, L.P.) currently holds 818,000 shares of Avantor, Inc. (AVTR) worth $9.37 M, representing 1.92% of the portfolio. First purchased in 2023-Q1, this medium-term investment has been held for 12 quarters.
Based on 13F filings, Robert Olstein has maintained a strategic position in AVTR, demonstrating sustained confidence in this investment. Largest addition occurred in Q1 2025, adding 212,000 shares. Largest reduction occurred in Q3 2024, reducing 56,184 shares.
Analysis based on 13F filings available since 2013 Q2
Robert Olstein's Avantor (AVTR) Holding Value Over Time
Track share changes against reported price movement
Quarterly Avantor (AVTR) Trades by Robert Olstein
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q4 2025 | +24,000 | Add 3.02% | 818,000 | $11.46 |
| Q3 2025 | +115,000 | Add 16.94% | 794,000 | $12.48 |
| Q2 2025 | +111,000 | Add 19.54% | 679,000 | $13.46 |
| Q1 2025 | +212,000 | Add 59.55% | 568,000 | $16.21 |
| Q4 2024 | +121,000 | Add 51.49% | 356,000 | $21.07 |
| Q3 2024 | -56,184 | Reduce 19.30% | 235,000 | $25.87 |
| Q2 2024 | -3,000 | Reduce 1.02% | 291,184 | $21.20 |
| Q1 2024 | -20,816 | Reduce 6.61% | 294,184 | $25.57 |
| Q4 2023 | +9,000 | Add 2.94% | 315,000 | $22.83 |
| Q2 2023 | +165,000 | Add 117.02% | 306,000 | $20.54 |
| Q1 2023 | +141,000 | New Buy | 141,000 | $21.14 |
Robert Olstein's Avantor Investment FAQs
Robert Olstein first purchased Avantor, Inc. (AVTR) in Q1 2023, acquiring 141,000 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Robert Olstein has held Avantor, Inc. (AVTR) for 12 quarters since Q1 2023.
Robert Olstein's largest addition to Avantor, Inc. (AVTR) was in Q1 2025, adding 568,000 shares worth $9.21 M.
According to the latest 13F filing for Q4 2025, Robert Olstein's firm, Olstein Capital Management, L.P., owns 818,000 shares of Avantor, Inc. (AVTR), valued at approximately $9.37 M.
As of the Q4 2025 filing, Avantor, Inc. (AVTR) represents approximately 1.92% of Robert Olstein's publicly disclosed stock portfolio, making it one of their key holdings.
Robert Olstein's peak holding in Avantor, Inc. (AVTR) was 818,000 shares, as reported at the end of Q4 2025.