Quick Takeaways
- RIG - Transocean Ltd. has 23 insiders with reported activity on this page.
- Net insider value flow over the last year: +$49,483,649.
- Recent transaction rows are available for direct filing-level review.
- Info
- Significant Ownership
- Insider Ownership
- Insider Trading
- Financials
- Holders
Insider Transactions Reported by 23 Insiders of Transocean Ltd.
- Symbol
- RIG on NYSE
- Location
- Steinhausen, Switzerland
What Changed
- Buy value: $54,711,400; sell value: $5,227,751.
- Net share flow: +15,327,481.
Why This Matters
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Official SEC Source
Insider trading overview
Last 12 monthsNet insider flow leans to buying over the last 12 months. Net value: +$49,483,649.
Buys
$54,711,400
Shares: 16,510,000
Insiders: 4
Sells
$5,227,751
Shares: 1,182,519
Insiders: 5
Net
+$49,483,649
Shares: +15,327,481
Insiders: -1
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 275,281 | $0 | $1,482,988 | -$1,482,988 |
| 3-6 | 4,500,000 | 823,238 | $18,090,000 | $3,504,143 | +$14,585,857 |
| 6-9 | 12,000,000 | 0 | $36,600,000 | $0 | +$36,600,000 |
| 9-12 | 10,000 | 84,000 | $21,400 | $240,620 | -$219,220 |
Transocean Ltd. executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Frederik W. Mohn | Director | $388,539,775 | +$18,230,000 | +4.9% | Mixed | 24 Nov 2025 |
| Perestroika | Director | $388,231,073 | +$18,230,000 | +4.9% | Filing P/S | 24 Nov 2025 |
| Perestroika (Cyprus) Ltd | Director | $388,231,073 | +$18,230,000 | +4.9% | Filing P/S | 24 Nov 2025 |
| Jeremy D. Thigpen | Executive Chair, Director | $17,985,569 | -$2,160,000 | -11% | Mixed | 01 Mar 2026 |
| Keelan Adamson | PRESIDENT AND CEO, Director | $10,814,889 | -$870,400 | -7.4% | Mixed | 01 Mar 2026 |
| Mark-Anthony Lovell Mey | Evp & Cfo | $9,369,857 | Mixed | 01 Mar 2024 | ||
| Brady K. Long | EVP & Chief Legal Officer | $8,713,756 | -$965,250 | -10% | Mixed | 01 Mar 2026 |
| Howard E. Davis | Evp, Cao & Cio | $8,256,412 | Mixed | 01 Mar 2024 | ||
| David A. Tonnel | Svp Chief Accounting Officer | $4,383,354 | Mixed | 01 Mar 2024 | ||
| Robert Thaddeus Vayda | EVP, Chief Financial Officer | $3,243,686 | -$128,700 | -3.8% | Mixed | 01 Mar 2026 |
| Roderick James Mackenzie | EVP, Chief Commercial Officer | $2,523,261 | -$1,054,342 | -29% | Mixed | 04 Mar 2026 |
| Jason Pack | SVP, Chief Accounting Officer | $1,977,412 | Mixed | 01 Mar 2026 | ||
| Vanessa C. L. Chang | Director | $343,919 | +$21,400 | +6.6% | Mixed | 30 May 2025 |
| Victor Diane de Saint | Director | $277,815 | Mixed | 13 May 2022 | ||
| Chad C. Deaton | Director | $222,400 | Mixed | 30 May 2025 | ||
| Glyn Anthony Barker | Director | $217,231 | Mixed | 30 May 2025 | ||
| Samuel J. Merksamer | Director | $217,231 | Mixed | 30 May 2025 | ||
| Vincent J. Intrieri | Director | $217,231 | Mixed | 30 May 2025 | ||
| Margareth Oevrum | Director | $217,231 | Mixed | 17 May 2024 | ||
| Frederico F. Curado | Director | $217,231 | Mixed | 30 May 2025 | ||
| Domenic J. Dell'Osso Jr. | Director | $217,231 | Mixed | 30 May 2025 | ||
| Edward R. Muller | Director | $181,122 | Mixed | 12 May 2023 | ||
| William F. Lacey | Director | Mixed | 30 May 2025 |
Top shareholders of Transocean Ltd. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| VANGUARD GROUP INC |
13F
|
Company |
8.8%
|
97,006,263
|
$400,635,866 | — | 31 Dec 2025 | |
| Frederik W. Mohn |
13D/G
3/4/5
|
Director |
8.8%
|
96,918,301
|
$400,272,583 | +$6,195,000 | 09 Feb 2026 | |
| Perestroika |
3/4/5
|
Director |
—
class O/S missing
|
96,574,894
|
$388,231,073 | +$18,230,000 | 24 Nov 2025 | |
| Perestroika (Cyprus) Ltd |
3/4/5
|
Director |
—
class O/S missing
|
96,574,894
|
$388,231,073 | +$18,230,000 | 24 Nov 2025 | |
| BlackRock, Inc. |
13F
13D/G
|
Company |
6.4%
from 13D/G
|
88,142,959
|
$364,030,423 | — | 31 Dec 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
3.9%
|
43,470,312
|
$179,531,409 | — | 31 Dec 2025 | |
| Pilgrim Global Advisors LLC |
13F
|
Company |
2.9%
|
31,759,346
|
$131,166,099 | — | 31 Dec 2025 | |
| AMERICAN CENTURY COMPANIES INC |
13F
|
Company |
2.5%
|
27,488,687
|
$113,528,284 | — | 31 Dec 2025 | |
| Dalal Street, LLC |
13F
|
Company |
2.5%
|
27,040,133
|
$111,675,749 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
2.3%
|
24,790,325
|
$102,384,045 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13F
|
Company |
2.2%
|
24,725,897
|
$102,117,955 | — | 31 Dec 2025 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
2.2%
|
24,235,919
|
$100,094,345 | — | 31 Dec 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.1%
|
22,797,180
|
$94,168,064 | — | 31 Dec 2025 | |
| TWO SIGMA ADVISERS, LP |
13F
|
Company |
2%
|
22,213,154
|
$91,740,326 | — | 31 Dec 2025 | |
| Capital World Investors |
13D/G
13F
|
Company |
4.6%
|
40,222,614
|
$88,489,751 | -$17,683,721 | 31 Dec 2024 | |
| VAN ECK ASSOCIATES CORP |
13F
|
Company |
1.5%
|
16,824,069
|
$69,483,000 | — | 31 Dec 2025 | |
| D. E. Shaw & Co., Inc. |
13F
|
Company |
1.5%
|
16,425,031
|
$67,835,378 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
1.5%
|
16,045,959
|
$66,269,812 | — | 31 Dec 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
1.4%
|
15,504,361
|
$64,033,012 | — | 31 Dec 2025 | |
| KEYBANK NATIONAL ASSOCIATION/OH |
13F
|
Company |
1.1%
|
12,251,077
|
$50,596,964 | — | 31 Dec 2025 | |
| BARCLAYS PLC |
13F
|
Company |
0.98%
|
10,802,664
|
$44,615,003 | — | 31 Dec 2025 | |
| Jeffrey L. Gendell |
13F
|
Individual |
0.98%
|
10,789,833
|
$44,562,010 | — | 31 Dec 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.91%
|
9,997,978
|
$41,291,649 | — | 31 Dec 2025 | |
| PRIMECAP MANAGEMENT CO/CA/ |
13D/G
13F
|
Company |
1.5%
|
13,126,722
|
$37,542,425 | $0 | 30 Jun 2025 | |
| RENAISSANCE TECHNOLOGIES LLC |
13F
|
Company |
0.82%
|
9,035,328
|
$37,315,905 | — | 31 Dec 2025 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
|
Company |
0.81%
|
8,867,750
|
$36,623,808 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.72%
|
7,897,577
|
$32,616,992 | — | 31 Dec 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
0.69%
|
7,596,497
|
$31,373,533 | — | 31 Dec 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.64%
|
7,005,529
|
$28,932,835 | — | 31 Dec 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0.5%
|
5,509,256
|
$22,753,228 | — | 31 Dec 2025 | |
| UBS Group AG |
13F
|
Company |
0.5%
|
5,470,273
|
$22,592,227 | — | 31 Dec 2025 | |
| Squarepoint Ops LLC |
13F
|
Company |
0.49%
|
5,414,332
|
$22,361,191 | — | 31 Dec 2025 | |
| CIBC WORLD MARKET INC. |
13F
|
Company |
0.48%
|
5,310,718
|
$21,933,265 | — | 31 Dec 2025 | |
| Jefferies Financial Group Inc. |
13F
|
Company |
0.42%
|
4,610,882
|
$19,042,942 | — | 31 Dec 2025 | |
| CLOUGH CAPITAL PARTNERS L P |
13F
|
Company |
0.42%
|
4,577,619
|
$18,905,566 | — | 31 Dec 2025 | |
| Solus Alternative Asset Management LP |
13F
|
Company |
0.41%
|
4,470,000
|
$18,461,100 | — | 31 Dec 2025 | |
| Zimmer Partners, LP |
13F
|
Company |
0.41%
|
4,463,252
|
$18,433,231 | — | 31 Dec 2025 | |
| ION Fund Management Ltd |
13F
|
Company |
0.4%
|
4,396,123
|
$18,155,988 | — | 31 Dec 2025 | |
| Jeremy D. Thigpen |
3/4/5
|
Executive Chair, Director |
—
mixed-class rows
|
3,021,880
mixed-class rows
|
$17,985,569 | -$2,160,000 | 01 Mar 2026 | |
| Penn Capital Management Company, LLC |
13F
|
Company |
0.34%
|
3,755,392
|
$15,550,959 | — | 31 Dec 2025 | |
| Ensign Peak Advisors, Inc |
13F
|
Company |
0.31%
|
3,413,140
|
$14,096,268 | — | 31 Dec 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.31%
|
3,395,530
|
$14,023,539 | — | 31 Dec 2025 | |
| HSBC HOLDINGS PLC |
13F
|
Company |
0.28%
|
3,117,030
|
$12,920,090 | — | 31 Dec 2025 | |
| Madison Asset Management, LLC |
13F
|
Company |
0.28%
|
3,030,000
|
$12,513,900 | — | 31 Dec 2025 | |
| AQR CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.27%
|
2,974,556
|
$12,284,916 | — | 31 Dec 2025 | |
| Forvis Mazars Wealth Advisors, LLC |
13F
|
Company |
0.27%
|
2,932,090
|
$12,109,532 | — | 31 Dec 2025 | |
| Walleye Trading LLC |
13F
|
Company |
0.26%
|
2,910,085
|
$12,018,651 | — | 31 Dec 2025 | |
| Nuveen, LLC |
13F
|
Company |
0.25%
|
2,756,533
|
$11,384,481 | — | 31 Dec 2025 | |
| Qube Research & Technologies Ltd |
13F
|
Company |
0.25%
|
2,700,622
|
$11,153,569 | — | 31 Dec 2025 | |
| ALGERT GLOBAL LLC |
13F
|
Company |
0.24%
|
2,649,270
|
$10,941,000 | — | 31 Dec 2025 |
Recent Insider Transactions by Companies or Individuals for Transocean Ltd.
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Roderick James Mackenzie | RIG | Registered Shares | Sale | -22.6% | $498,433 | $6.36 | -78,370 | 268,025 | 04 Mar 2026 | Direct |
| Robert Thaddeus Vayda | RIG | Registered Shares | Tax liability | -15.2% | -62,970 | 352,635 | 03 Mar 2026 | Direct | ||
| Keelan Adamson | RIG | Registered Shares | Tax liability | -7.9% | -127,878 | 1,491,509 | 03 Mar 2026 | Direct | ||
| Jason Pack | RIG | Registered Shares | Tax liability | -9.64% | -27,962 | 262,103 | 03 Mar 2026 | Direct | ||
| Brady K. Long | RIG | Registered Shares | Tax liability | -6.61% | -87,689 | 1,238,098 | 03 Mar 2026 | Direct | ||
| Jeremy D. Thigpen | RIG | Registered Shares | Tax liability | -8.59% | -245,556 | 2,614,548 | 03 Mar 2026 | Direct | ||
| Roderick James Mackenzie | RIG | Registered Shares | Tax liability | -15.4% | -62,886 | 346,395 | 03 Mar 2026 | Direct | ||
| Robert Thaddeus Vayda | RIG | Registered Shares | Options Exercise | 60.5% | 156,672 | 415,605 | 01 Mar 2026 | Direct | ||
| Keelan Adamson | RIG | Registered Shares | Options Exercise | 24.4% | 318,176 | 1,619,387 | 01 Mar 2026 | Direct | ||
| Jason Pack | RIG | Registered Shares | Options Exercise | 31.6% | 69,569 | 290,065 | 01 Mar 2026 | Direct | ||
| Brady K. Long | RIG | Registered Shares | Options Exercise | 19.7% | 218,177 | 1,325,787 | 01 Mar 2026 | Direct | ||
| Jeremy D. Thigpen | RIG | Registered Shares | Options Exercise | 27.2% | 610,979 | 2,860,104 | 01 Mar 2026 | Direct | ||
| Roderick James Mackenzie | RIG | Registered Shares | Options Exercise | 61.9% | 156,463 | 409,281 | 01 Mar 2026 | Direct | ||
| Robert Thaddeus Vayda | RIG | Registered Shares | Tax liability | -4.06% | -10,947 | 258,933 | 06 Feb 2026 | Direct | ||
| Jeremy D. Thigpen | RIG | Registered Shares | Tax liability | -5.89% | -147,729 | 2,362,028 | 06 Feb 2026 | Direct | ||
| Brady K. Long | RIG | Registered Shares | Tax liability | -3.51% | -40,294 | 1,107,610 | 06 Feb 2026 | Direct | ||
| Roderick James Mackenzie | RIG | Registered Shares | Tax liability | -9.54% | -26,665 | 252,818 | 06 Feb 2026 | Direct | ||
| Jason Pack | RIG | Registered Shares | Tax liability | -4.98% | -11,557 | 220,496 | 06 Feb 2026 | Direct | ||
| Keelan Adamson | RIG | Registered Shares | Tax liability | -3.82% | -51,709 | 1,301,211 | 06 Feb 2026 | Direct | ||
| Robert Thaddeus Vayda | RIG | Registered Shares | Options Exercise | 14.8% | 34,726 | 269,880 | 05 Feb 2026 | Direct | ||
| Robert Thaddeus Vayda | RIG | Restricted Units | Award | 239,740 | 239,740 | 05 Feb 2026 | Direct | |||
| Jeremy D. Thigpen | RIG | Registered Shares | Options Exercise | 17.5% | 373,534 | 2,509,757 | 05 Feb 2026 | Direct | ||
| Jeremy D. Thigpen | RIG | Restricted Units | Award | 407,332 | 407,332 | 05 Feb 2026 | Direct | |||
| Brady K. Long | RIG | Registered Shares | Options Exercise | 9.74% | 101,873 | 1,147,904 | 05 Feb 2026 | Direct | ||
| Brady K. Long | RIG | Restricted Units | Award | 233,290 | 233,290 | 05 Feb 2026 | Direct | |||
| Roderick James Mackenzie | RIG | Registered Shares | Options Exercise | 31.8% | 67,411 | 279,483 | 05 Feb 2026 | Direct | ||
| Roderick James Mackenzie | RIG | Restricted Units | Award | 204,939 | 204,939 | 05 Feb 2026 | Direct | |||
| Jason Pack | RIG | Registered Shares | Options Exercise | 14.4% | 29,211 | 232,053 | 05 Feb 2026 | Direct | ||
| Jason Pack | RIG | Restricted Units | Award | 76,629 | 76,629 | 05 Feb 2026 | Direct | |||
| Keelan Adamson | RIG | Registered Shares | Options Exercise | 10.7% | 130,738 | 1,352,920 | 05 Feb 2026 | Direct | ||
| Keelan Adamson | RIG | Restricted Units | Award | 712,831 | 712,831 | 05 Feb 2026 | Direct | |||
| Keelan Adamson | RIG | Registered Shares | Sale | -4.58% | $293,435 | $5.00 | -58,687 | 1,222,182 | 27 Jan 2026 | Direct |
| Brady K. Long | RIG | Registered Shares | Sale | -8.67% | $496,465 | $5.00 | -99,293 | 1,046,031 | 27 Jan 2026 | Direct |
| Keelan Adamson | RIG | Registered Shares | Sale | -1.75% | $114,230 | $5.00 | -22,846 | 1,280,869 | 26 Jan 2026 | Direct |
| Brady K. Long | RIG | Registered Shares | Sale | -1.38% | $80,425 | $5.00 | -16,085 | 1,145,324 | 26 Jan 2026 | Direct |
| Keelan Adamson | RIG | Registered Shares | Sale | -4.26% | $260,856 | $4.50 | -57,968 | 1,303,715 | 05 Dec 2025 | Direct |
| Keelan Adamson | RIG | Registered Shares | Sale | -0.62% | $38,110 | $4.50 | -8,469 | 1,361,683 | 04 Dec 2025 | Direct |
| Roderick James Mackenzie | RIG | Registered Shares | Sale | -14.2% | $156,800 | $4.48 | -35,000 | 212,072 | 03 Dec 2025 | Direct |
| Robert Thaddeus Vayda | RIG | Registered Shares | Sale | -11.3% | $128,700 | $4.29 | -30,000 | 235,154 | 26 Nov 2025 | Direct |
| Jeremy D. Thigpen | RIG | Registered Shares | Sale | -19% | $2,160,000 | $4.32 | -500,000 | 2,136,223 | 26 Nov 2025 | Direct |
| Perestroika (Cyprus) Ltd | RIG | Registered Shares | Purchase | 1.58% | $6,030,000 | $4.02 | 1,500,000 | 96,574,894 | 24 Nov 2025 | Direct |
| Perestroika | RIG | Registered Shares | Purchase | 1.58% | $6,030,000 | $4.02 | 1,500,000 | 96,574,894 | 24 Nov 2025 | By Perestroika (Cyprus) Ltd. |
| Frederik Wilhelm Mohn | RIG | Registered Shares | Purchase | 1.58% | $6,030,000 | $4.02 | 1,500,000 | 96,574,894 | 24 Nov 2025 | By Perestroika (Cyprus) Ltd. |
| Roderick James Mackenzie | RIG | Registered Shares | Sale | -17.9% | $207,548 | $3.86 | -53,769 | 247,072 | 31 Oct 2025 | Direct |
| Brady K. Long | RIG | Registered Shares | Sale | -7.71% | $388,360 | $4.00 | -97,090 | 1,161,409 | 24 Oct 2025 | Direct |
| Keelan Adamson | RIG | Registered Shares | Sale | -2.9% | $163,768 | $4.00 | -40,942 | 1,370,152 | 24 Oct 2025 | Direct |
| Perestroika (Cyprus) Ltd | RIG | Registered Shares | Purchase | 4.39% | $12,200,000 | $3.05 | 4,000,000 | 95,074,894 | 26 Sep 2025 | Direct |
| Perestroika | RIG | Registered Shares | Purchase | 4.39% | $12,200,000 | $3.05 | 4,000,000 | 95,074,894 | 26 Sep 2025 | By Perestroika (Cyprus) Ltd. |
| Frederik Wilhelm Mohn | RIG | Registered Shares | Purchase | 4.39% | $12,200,000 | $3.05 | 4,000,000 | 95,074,894 | 26 Sep 2025 | By Perestroika (Cyprus) Ltd. |
| Roderick James Mackenzie | RIG | Registered Shares | Sale | -11.7% | $130,400 | $3.26 | -40,000 | 300,841 | 13 Jun 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.