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Weitz Value Fund IDXX trades

Wallace Weitz

Wallace Weitz IDEXX Laboratories Inc stake

total: 54

Trades details

Total transactions:
3
New positions:
1
Reduced:
2
Held since:
2025 Q1
Held for:
6 quarters
Latest activity:
2025 Q4
According to 2026 Q2 report, Wallace Weitz holds 20,000 IDEXX Laboratories Inc (IDXX) shares with a market value of roughly $10.53M accounting for 1.68% of the overall portfolio. To date, the estimated cost basis is nearly $419.95 for "buy" trades and estimated average "sell" price is $671.26. Weitz Value Fund first purchased IDXX in 2025 Q1, initially acquiring 45,000 shares. Since the initial investment in IDEXX Laboratories Inc (IDXX), Weitz Value Fund has made 2 more transactions.

How many IDXX shares does Wallace Weitz currently hold?

According to 2026 Q2 report, Wallace Weitz holds 20,000 shares of IDEXX Laboratories Inc (IDXX), valued at around $10.53M.

When did Wallace Weitz buy IDEXX Laboratories Inc (IDXX)?

Wallace Weitz first invested in IDEXX Laboratories Inc (IDXX) in 2025 Q1 at the reported quarter-end price of $419.95 per share.

What's the cost basis of Weitz Value Fund's IDXX stake?

The estimated cost basis for IDEXX Laboratories Inc (IDXX) stake is around $419.95 per share. This represents their average reported price* across all buy transactions

Estimated cost basis*

Weighted AVG buy price:
$419.95
Weighted AVG sell price:
$671.26

Wallace Weitz's historical trades in IDEXX Laboratories Inc

3 results
Period % of
portfolio
Shares
held after*
Reported
price*
Value* % (shares)
of activity
% change
to portfolio
2025 Q4
1.78%
20,000
$676.53
$13,530,600
-51.81% (-21,500)
-1.77%
2025 Q3
3.23%
41,500
$638.89
$26,513,935
-7.78% (-3,500)
-0.26%
2025 Q1
2.20%
45,000
$419.95
$18,897,750
new
+2.2%
* 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.
* 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.