RIG
Transocean Ltd.
Drilling Oil & Gas WellsNYSELarge accelerated filer
Total Trades
50
Buys
19
Sells
29
Largest Trade
N/A
Insiders
12
Institutional Funds
391
Inst. Value
$1M+
Activist Filings
16
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Mackenzie Roderick James | EVP | SELL | $100K–$500K | 78K | $6.36 | Mar 6, 2026 |
| Long Brady K | EVP & Chief Legal … | SELL | $500K+ | 115K | $5.00 | Jan 28, 2026 |
| Adamson Keelan | PRESIDENT AND CEO | SELL | $100K–$500K | 82K | $5.00 | Jan 28, 2026 |
| Adamson Keelan | PRESIDENT AND CEO | SELL | $100K–$500K | 66K | $4.50 | Dec 8, 2025 |
| Mackenzie Roderick James | EVP | SELL | $100K–$500K | 35K | $4.48 | Dec 5, 2025 |
| Vayda Robert Thaddeus | CFO | SELL | $100K–$500K | 30K | $4.29 | Dec 1, 2025 |
| THIGPEN JEREMY D | Executive Chair | SELL | $1M+ | 500K | $4.32 | Dec 1, 2025 |
| Perestroika (Cyprus) Ltd | Director | BUY | $1M+ | 1.5M | $4.02 | Nov 25, 2025 |
| Perestroika | Director | BUY | $1M+ | 1.5M | $4.02 | Nov 25, 2025 |
| Mohn Frederik Wilhelm | Director | BUY | $1M+ | 1.5M | $4.02 | Nov 25, 2025 |
| Mackenzie Roderick James | EVP | SELL | $100K–$500K | 54K | $3.86 | Nov 4, 2025 |
| Long Brady K | EVP & Chief Legal … | SELL | $100K–$500K | 97K | $4.00 | Oct 28, 2025 |
| Adamson Keelan | PRESIDENT AND CEO | SELL | $100K–$500K | 41K | $4.00 | Oct 28, 2025 |
| Perestroika (Cyprus) Ltd | Director | BUY | $1M+ | 4.0M | $3.05 | Oct 1, 2025 |
| Perestroika | Director | BUY | $1M+ | 4.0M | $3.05 | Oct 1, 2025 |
| Mohn Frederik Wilhelm | Director | BUY | $1M+ | 4.0M | $3.05 | Oct 1, 2025 |
| Mackenzie Roderick James | EVP | SELL | $100K–$500K | 40K | $3.26 | Jun 16, 2025 |
| Mackenzie Roderick James | EVP | SELL | $50K–$100K | 22K | $2.78 | May 12, 2025 |
| CHANG VANESSA C L | Director | BUY | $15K–$50K | 10K | $2.14 | May 2, 2025 |
| Mackenzie Roderick James | EVP | SELL | $15K–$50K | 22K | $2.23 | Apr 14, 2025 |
| Mackenzie Roderick James | EVP | SELL | $50K–$100K | 22K | $2.94 | Mar 12, 2025 |
| Mackenzie Roderick James | EVP | SELL | $50K–$100K | 22K | $4.05 | Jan 14, 2025 |
| Mackenzie Roderick James | EVP | SELL | $100K–$500K | 37K | $4.38 | Nov 22, 2024 |
| Mackenzie Roderick James | EVP | SELL | $50K–$100K | 20K | $4.29 | Nov 21, 2024 |
| Perestroika (Cyprus) Ltd | Director | BUY | $1M+ | 1.0M | $4.89 | Feb 29, 2024 |
| Perestroika | Director | BUY | $1M+ | 1.0M | $4.89 | Feb 29, 2024 |
| Mohn Frederik Wilhelm | Director | BUY | $1M+ | 1.0M | $4.89 | Feb 29, 2024 |
| Perestroika (Cyprus) Ltd | Director | BUY | N/A | 2.0M | — | Sep 19, 2023 |
| Perestroika | Director | BUY | N/A | 2.0M | — | Sep 19, 2023 |
| Mohn Frederik Wilhelm | Director | BUY | N/A | 2.0M | — | Sep 19, 2023 |
| Tonnel David A | SVP - CHIEF ACCOUN… | SELL | $100K–$500K | 57K | $8.22 | Sep 5, 2023 |
| Mey Mark-Anthony Lovell | EVP & CFO | SELL | $1M+ | 396K | $8.50 | Aug 4, 2023 |
| Tonnel David A | SVP - CHIEF ACCOUN… | SELL | $15K–$50K | 2K | $8.76 | Jul 20, 2023 |
| Tonnel David A | SVP - CHIEF ACCOUN… | SELL | $50K–$100K | 12K | $6.53 | Apr 19, 2023 |
| DEATON CHAD C | Director | BUY | $100K–$500K | 30K | $7.40 | Mar 6, 2023 |
| Adamson Keelan | PRESIDENT AND COO | SELL | $100K–$500K | 71K | $6.81 | Mar 3, 2023 |
| Adamson Keelan | PRESIDENT AND COO | EXERCISE | $1M+ | 354K | $7.08 | Mar 3, 2023 |
| Tonnel David A | SVP - CHIEF ACCOUN… | SELL | $100K–$500K | 25K | $7.38 | Feb 17, 2023 |
| Adamson Keelan | PRESIDENT AND COO | EXERCISE | N/A | 421K | — | Feb 13, 2023 |
| Adamson Keelan | PRESIDENT AND COO | SELL | $100K–$500K | 50K | $7.15 | Feb 13, 2023 |
| Tonnel David A | SVP - CHIEF ACCOUN… | SELL | $100K–$500K | 44K | $6.94 | Feb 3, 2023 |
| Tonnel David A | SVP - CHIEF ACCOUN… | SELL | $50K–$100K | 15K | $6.15 | Jan 20, 2023 |
| Tonnel David A | SVP - CHIEF ACCOUN… | SELL | $100K–$500K | 34K | $5.45 | Jan 11, 2023 |
| Tonnel David A | SVP - CHIEF ACCOUN… | SELL | $50K–$100K | 13K | $4.95 | Jan 10, 2023 |
| DEATON CHAD C | Director | BUY | $100K–$500K | 50K | $4.07 | Nov 14, 2022 |
| CHANG VANESSA C L | Director | BUY | $15K–$50K | 12K | $3.21 | Jun 27, 2022 |
| Mohn Frederik Wilhelm | Director | BUY | $1M+ | 2.0M | $3.75 | May 17, 2022 |
| Perestroika | Director | BUY | $1M+ | 2.0M | $3.75 | May 17, 2022 |
| CHANG VANESSA C L | Director | BUY | $15K–$50K | 10K | $3.49 | May 13, 2022 |
| Adamson Keelan | President & COO | SELL | $1M+ | 349K | $5.00 | Mar 9, 2022 |
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Institutional Ownership
13F filings as of Dec 31, 2025 · 391 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| VANGUARD GROUP INC | 89.4M | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 42.3M | $1M+ | SH |
| AMERICAN CENTURY COMPANIES INC | 27.5M | $1M+ | SH |
| Dalal Street, LLC | 27.0M | $1M+ | SH |
| STATE STREET CORP | 24.7M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 19.6M | $1M+ | SH |
| Capital World Investors | 15.7M | $1M+ | SH |
| KEYBANK NATIONAL ASSOCIATION/OH | 12.1M | $1M+ | SH |
| BARCLAYS PLC | 10.8M | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 10.0M | $1M+ | SH |
| RENAISSANCE TECHNOLOGIES LLC | 9.0M | $1M+ | SH |
| GENDELL JEFFREY L | 8.3M | $1M+ | SH |
| Squarepoint Ops LLC | 5.4M | $1M+ | SH |
| CIBC WORLD MARKET INC. | 5.3M | $1M+ | SH |
| Jefferies Financial Group Inc. | 4.6M | $1M+ | SH |
| CLOUGH CAPITAL PARTNERS L P | 4.6M | $1M+ | SH |
| ION Fund Management Ltd | 4.4M | $1M+ | SH |
| JPMORGAN CHASE & CO | 4.1M | $1M+ | SH |
| PRIMECAP MANAGEMENT CO/CA/ | 4.0M | $1M+ | SH |
| Penn Capital Management Company, LLC | 3.8M | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13D/A · Feb 12, 2026
8.8%
96.9M shares
SC 13D/A · Oct 1, 2025
10.1%
95.4M shares
SC 13G/A · Aug 14, 2025
1.5%
13.1M shares
SC 13G/A · Apr 23, 2025
6.4%
56.1M shares
SC 13G/A · Feb 13, 2025
4.6%
40.2M shares
SC 13G · Nov 13, 2024
5.5%
48.3M shares
SC 13G/A · Oct 15, 2024
4.8%
41.5M shares
SC 13G · Jul 9, 2024
5.9%
55.5M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
8.5%
68.6M shares
PRIMECAP Management Company 95-3868081
SC 13G/A · Feb 12, 2024
6.3%
50.7M shares
SC 13G/A · Feb 14, 2023
4.9%
35.1M shares
PRIMECAP Management Company 95-3868081
SC 13G/A · Feb 9, 2023
6.5%
46.6M shares
SC 13D/A · Dec 19, 2022
11.5%
82.8M shares
SC 13G · Nov 25, 2022
5.0%
36.1M shares
SC 13D/A · May 17, 2022
12.2%
82.8M shares
PRIMECAP Management Company 95-3868081
SC 13G/A · Feb 10, 2022
7.3%
47.5M shares