Jeffrey Ubben
ValueAct Holdings
Jeffrey Ubben RobloxCorp stake
total: 107
ValueAct Holdings RBLX trades
- Total transactions:
- 9
- New positions:
- 1
- Added:
- 3
- Reduced:
- 5
- Held since:
- 2023 Q3
- Held for:
- 12 quarters
- Latest activity:
- 2026 Q2
According to 2026 Q2 report, Jeffrey Ubben holds 3,147,421 RobloxCorp (RBLX) shares with a market value of roughly $171.16M accounting for 3.04% of the overall portfolio. To date, the estimated cost basis is nearly $46.94 for "buy" trades and estimated average "sell" price is $82.99. ValueAct Holdings first purchased RBLX in 2023 Q3, initially acquiring about 1.80M shares. Since the initial investment in RobloxCorp (RBLX), ValueAct Holdings has made 8 more transactions.
When did Jeffrey Ubben buy RobloxCorp (RBLX)?
Jeffrey Ubben first invested in RobloxCorp (RBLX) in 2023 Q3 at the reported quarter-end price of $28.96 per share.
What's the cost basis of ValueAct Holdings's RBLX stake?
The estimated cost basis for RobloxCorp (RBLX) stake is around $46.94 per share. This represents their average reported price* across all buy transactions
Estimated cost basis*
- Weighted AVG buy price:
- $46.94
- Weighted AVG sell price:
- $82.99
Jeffrey Ubben's historical trades in RobloxCorp
9 results
| Period |
% of portfolio |
Shares held after* |
Reported price* |
Value* |
% (shares) of activity |
% change to portfolio |
|---|---|---|---|---|---|---|
|
2026 Q2
|
3.04%
|
3,147,421
|
$54.38
|
$171,156,754
|
-46.19% (-2,701,200)
|
-2.57%
|
|
2026 Q1
|
5.79%
|
5,848,621
|
$56.56
|
$330,798,004
|
-2.13% (-127,200)
|
-0.1%
|
|
2025 Q4
|
6.89%
|
5,975,821
|
$81.03
|
$484,220,776
|
+39.52% (+1,692,600)
|
+1.95%
|
|
2025 Q3
|
10.01%
|
4,283,221
|
$138.52
|
$593,311,773
|
-9.48% (-448,800)
|
-1.11%
|
|
2025 Q2
|
8.89%
|
4,732,021
|
$105.20
|
$497,808,609
|
-46.01% (-4,032,900)
|
-9.26%
|
|
2025 Q1
|
11.15%
|
8,764,921
|
$58.29
|
$510,907,245
|
-13.53% (-1,371,000)
|
-1.82%
|
|
2024 Q3
|
10.26%
|
10,135,921
|
$44.26
|
$448,615,863
|
+340.69% (+7,835,921)
|
+7.93%
|
|
2024 Q1
|
1.93%
|
2,300,000
|
$38.18
|
$87,814,000
|
+27.78% (+500,000)
|
+0.42%
|
|
2023 Q3
|
1.17%
|
1,800,000
|
$28.96
|
$52,128,000
|
new
|
+1.17%
|
* 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.