Thomas Russo
Gardner Russo & Quinn
Thomas Russo Eurofins Scientific SE stake
total: 273
Gardner Russo & Quinn ERFSF trades
- Total transactions:
- 2
- New positions:
- 1
- Added:
- 1
- Held since:
- 2026 Q1
- Held for:
- 2 quarters
- Latest activity:
- 2026 Q2
According to 2026 Q2 report, Thomas Russo holds 4,094,034 Eurofins Scientific SE (ERFSF) shares with a market value of roughly $320.91M accounting for 3.60% of the overall portfolio. To date, the estimated cost basis is nearly $73.71 for "buy" trades. Gardner Russo & Quinn first purchased ERFSF in 2026 Q1, initially acquiring about 3.10M shares. Since the initial investment in Eurofins Scientific SE (ERFSF), Gardner Russo & Quinn has made 1 more transaction.
When did Thomas Russo buy Eurofins Scientific SE (ERFSF)?
Thomas Russo first invested in Eurofins Scientific SE (ERFSF) in 2026 Q1 at the reported quarter-end price of $72.20 per share.
What's the cost basis of Gardner Russo & Quinn's ERFSF stake?
The estimated cost basis for Eurofins Scientific SE (ERFSF) stake is around $73.71 per share. This represents their average reported price* across all buy transactions
Estimated cost basis*
- Weighted AVG buy price:
- $73.70
Thomas Russo's historical trades in Eurofins Scientific SE
2 results
| Period |
% of portfolio |
Shares held after* |
Reported price* |
Value* |
% (shares) of activity |
% change to portfolio |
|---|---|---|---|---|---|---|
|
2026 Q2
|
3.60%
|
4,094,034
|
$78.38
|
$320,909,414
|
+32.22% (+997,630)
|
+0.88%
|
|
2026 Q1
|
2.63%
|
3,096,404
|
$72.20
|
$223,550,621
|
new
|
+2.63%
|
* 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.