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TRANSOCEAN LTD

RIG

TRANSOCEAN LTD

TRANSOCEAN LTD historical holders

total: 9

Dalal Street TRANSOCEAN LTD transactions over time

Total transactions:
3
New positions:
1
Added:
1
Reduced:
1
Held since:
2025 Q3
Held for:
3 quarters
Latest activity:
2026 Q1
Mohnish Pabrai has been an institutional investor in TRANSOCEAN LTD (RIG) since 2025 Q3. According to 2026 Q1 report, Mohnish Pabrai holds 20,392,672 shares with a market value of roughly $135.20M representing 31.97% of their equity portfolio. The fund/company first acquired RIG in 2025 Q3, initially purchasing about 24.44M shares. Since the initial investment, Dalal Street has made 2 more transactions in this position.

Does Mohnish Pabrai still hold RIG?

Yes, Mohnish Pabrai continues to hold TRANSOCEAN LTD (RIG). According to their 2026 Q1 report, they maintain a position of 20,392,672 shares valued at approximately $135.20M, representing 31.97% of their equity portfolio.

When did Mohnish Pabrai first invest in RIG?

Mohnish Pabrai first invested in TRANSOCEAN LTD (RIG) in 2025 Q3 at the reported quarter-end price of $3.12 per share, acquiring 24,442,332 shares in their initial purchase.

What is Mohnish Pabrai's average cost basis for RIG?

Based on historical transaction data, Mohnish Pabrai's estimated cost basis for TRANSOCEAN LTD (RIG) is approximately $3.22 per share. This represents their average reported price* across all buy transactions.

Estimated cost basis*

Weighted AVG buy price:
$3.22
Weighted AVG sell price:
$6.63

RIG transactions history by Dalal Street

3 results
Period % of
portfolio
Shares
held after*
Reported
price*
Value* % (shares)
of activity
% change
to portfolio
2026 Q1
31.97%
20,392,672
$6.63
$135,203,415
-24.58% (-6,647,461)
-10.96%
2025 Q4
27.78%
27,040,133
$4.13
$111,675,749
+10.63% (+2,597,801)
+2.67%
2025 Q3
22.64%
24,442,332
$3.12
$76,260,076
new
+22.64%
* 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.