AVTR
Avantor Inc
Avantor Inc historical holders
total: 12
Greenhaven Associates Avantor Inc transactions over time
- Total transactions:
- 4
- New positions:
- 1
- Added:
- 3
- Held since:
- 2025 Q3
- Held for:
- 4 quarters
- Latest activity:
- 2026 Q2
Edgar Wachenheim III has been an institutional investor in Avantor Inc (AVTR) since 2025 Q3. According to 2026 Q2 report, Edgar Wachenheim III holds 24,637,310 shares with a market value of roughly $243.91M representing 2.82% of their equity portfolio. The fund/company first acquired AVTR in 2025 Q3, initially purchasing about 18.31M shares. Since the initial investment, Greenhaven Associates has made 3 more transactions in this position.
Does Edgar Wachenheim III still hold AVTR?
Yes, Edgar Wachenheim III continues to hold Avantor Inc (AVTR). According to their 2026 Q2 report, they maintain a position of 24,637,310 shares valued at approximately $243.91M, representing 2.82% of their equity portfolio.
When did Edgar Wachenheim III first invest in AVTR?
Edgar Wachenheim III first invested in Avantor Inc (AVTR) in 2025 Q3 at the reported quarter-end price of $12.48 per share, acquiring 18,311,570 shares in their initial purchase.
What is Edgar Wachenheim III's average cost basis for AVTR?
Based on historical transaction data, Edgar Wachenheim III's estimated cost basis for Avantor Inc (AVTR) is approximately $11.78 per share. This represents their average reported price* across all buy transactions.
Estimated cost basis*
- Weighted AVG buy price:
- $11.78
AVTR transactions history by Greenhaven Associates
4 results
| Period |
% of portfolio |
Shares held after* |
Reported price* |
Value* |
% (shares) of activity |
% change to portfolio |
|---|---|---|---|---|---|---|
|
2026 Q2
|
2.82%
|
24,637,310
|
$9.90
|
$243,909,369
|
+9.04% (+2,043,472)
|
+0.23%
|
|
2026 Q1
|
2.92%
|
22,593,838
|
$7.84
|
$177,135,690
|
+10.21% (+2,093,185)
|
+0.27%
|
|
2025 Q4
|
3.81%
|
20,500,653
|
$11.46
|
$234,937,483
|
+11.95% (+2,189,083)
|
+0.41%
|
|
2025 Q3
|
3.48%
|
18,311,570
|
$12.48
|
$228,528,394
|
new
|
+3.48%
|
* Shares, change to shares, sold shares, shares held after: split-adjusted.
* Reported price: this doesn't represent the actual buy or sell price. It is the split-adjusted price of the security as of the last day of the reported period.
If the security is completely sold out, we show the reported split-adjusted price prior to the actual period.
If the security is completely sold out, we show the reported split-adjusted price prior to the actual period.
* Estimated cost basis: based on "Reported price*" (not earlier than 2013 Q2). Calculation starts from the latest "new buy" activity to the latest "close out" activity (if any).
* Value or Price: If the security is completely sold out, we show the reported value (or price) prior to the actual period.
* New buy or own: this means there is no earlier reporting (for us or in general). So we can't know if the actual purchase of the security happened at the reported period or earlier.