Ownership history in Belfer Management LLC · 40 quarters on record
This page tracks every 13F SEC filing in which Belfer Management LLC reported a position in AVANTOR INC (AVTR). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.
| Quarter | Action | Shares | Change | Chg % | % of Fund | Mkt Value | Price (EOQ) |
|---|---|---|---|---|---|---|---|
| 2025 Q4 | REDUCED | 23,621 | -1,840 | -7.2% | 4.74% | $271K | $11.46 |
| 2025 Q3 | UNCHANGED | 25,461 | — | 0% | 4.41% | $318K | $12.48 |
| 2025 Q2 | REDUCED | 25,461 | -3,166 | -11.1% | 5.24% | $343K | $13.46 |
| 2025 Q1 | ADDED | 28,627 | +3,591 | +14.3% | 8.06% | $464K | $16.21 |
| 2024 Q4 | UNCHANGED | 25,036 | — | 0% | 10.31% | $648K | $21.07 |
| 2024 Q3 | UNCHANGED | 25,036 | — | 0% | 10.49% | $648K | $25.87 |
| 2024 Q2 | UNCHANGED | 25,036 | — | 0% | 10.01% | $531K | $21.20 |
| 2024 Q1 | ADDED | 25,036 | +1,415 | +6.0% | 11.54% | $640K | $25.57 |
| 2017 Q3 | UNCHANGED | 23,621 | — | 0% | 4.74% | $271K | — |
| 2017 Q2 | UNCHANGED | 23,621 | — | 0% | 4.74% | $271K | — |
As of 2025 Q4 — sorted by position size