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Transocean Ltd.

RIG Net buying
CIK 0001451505 #1160 in the set updated 17 Sep 2026
Bought (120 mo)
$318.04M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$15.36M
$2.36M on a plan · $0.00 straight out of an exercise
Sold at will
$12.99M
37 of 53 sales
Net
+$302.68M
+$305.04M against sales at will

By person

22 insiders · 207 transactions
Insider
Role
Bought
Sold
Net
Holding
Worth
Change
Mohn Frederik Wilhelm
Director
$131.99M (19)
—
+$131.99M
96,653,798
$478.44M
—
Perestroika
Director
$131.99M (19)
—
+$131.99M
179,211,540
$887.10M
+116.9%
Perestroika (Cyprus) Ltd entity
Director
$51.80M (7)
—
+$51.80M
96,574,894
$478.05M
+197.7%
Adamson Keelan
PRESIDENT AND CEO
—
$3.46M (8)
−$3.46M
1,600,884
$7.92M
+1,775%
Mey Mark-Anthony Lovell
EVP & CFO
—
$3.37M (1)
−$3.37M
1,595,750
$7.90M
+3,803%
THIGPEN JEREMY D
Executive Chair
—
$2.16M (1)
−$2.16M
2,614,548
$12.94M
—
Tonnel David A
SVP - CHIEF ACCOUNTING OFFICER
—
$1.90M (23)
−$1.90M
727,088
$3.60M
+4,660%
Mackenzie Roderick James
EVP, Chief Commercial Officer
—
$1.68M (12)
−$1.68M
268,025
$1.33M
−19.0%
Long Brady K
EVP & Chief Legal Officer
—
$1.57M (4) scheduled
−$1.57M
1,125,438
$5.57M
—
DEATON CHAD C
Director
$855.20K (6)
—
+$855.20K
237,421
$1.18M
+23,642%
CHANG VANESSA C L
Director
$256.40K (12)
—
+$256.40K
69,200
$342.54K
+3,971%
INTRIERI VINCENT J
Director
$179.70K (3)
—
+$179.70K
20,000
$99.00K
—
DAVIS HOWARD E
EVP, CAO & CIO
$915.41K (4)
$1.09M (3)
−$171.33K
1,545,280
$7.65M
+1,776%
Vayda Robert Thaddeus
EVP, Chief Financial Officer
—
$128.70K (1)
−$128.70K
352,635
$1.75M
+109.5%
de Saint Victor Diane
Director
$41.80K (1)
—
+$41.80K
10,000
$49.50K
—
MULLER EDWARD R
Director
$10.29K (1)
—
+$10.29K
25,334
$125.40K
+31.3%
Pack Jason
SVP, Chief Accounting Officer
—
—
—
262,103
$1.30M
+125.1%
Stobart John B
EVP & COO
—
—
—
167,825
$830.73K
+350.3%
MILLER MERRILL A JR
Director
—
—
—
86,185
$426.62K
—
Lacey William F.
Director
—
—
—
61,419
$304.02K
—
Bonno Terry
SVP, Marketing
—
—
—
48,336
$239.26K
+109.9%
Barker Glyn Anthony
Director
—
—
—
11,748
$58.15K
+162.5%

No percentages here. These insiders hold more than one class of share between them, and the share count on file covers one of them rather than all. Dividing the two would compare different things.

Individual transactions

72
Insider
Date
Role
Action
Shares
Price
Amount
DEATON CHAD C
2 Jul 2026
Director
Buy
35,000
$4.95
$173.25K
Mohn Frederik Wilhelm
24 Nov 2025
Director
Buy indirect
1,500,000
$4.02
$6.03M
Perestroika
24 Nov 2025
Director
Buy indirect
1,500,000
$4.02
$6.03M
Perestroika (Cyprus) Ltd
24 Nov 2025
Director
Buy
1,500,000
$4.02
$6.03M
Mohn Frederik Wilhelm
26 Sep 2025
Director
Buy indirect
4,000,000
$3.05
$12.20M
Perestroika
26 Sep 2025
Director
Buy indirect
4,000,000
$3.05
$12.20M
Perestroika (Cyprus) Ltd
26 Sep 2025
Director
Buy
4,000,000
$3.05
$12.20M
CHANG VANESSA C L
30 Apr 2025
Director
Buy
10,000
$2.14
$21.40K
Mohn Frederik Wilhelm
12 Sep 2024
Director
Buy indirect
1,500,000
$4.13
$6.20M
Perestroika (Cyprus) Ltd
12 Sep 2024
Director
Buy
1,500,000
$4.13
$6.20M
Perestroika
12 Sep 2024
Director
Buy indirect
1,500,000
$4.13
$6.20M
Mohn Frederik Wilhelm
2 Aug 2024
Director
Buy indirect
2,000,000
$5.23
$10.46M
Perestroika
2 Aug 2024
Director
Buy indirect
2,000,000
$5.23
$10.46M
Perestroika (Cyprus) Ltd
2 Aug 2024
Director
Buy
2,000,000
$5.23
$10.46M
Mohn Frederik Wilhelm
15 May 2024
Director
Buy indirect
2,000,000
$6.01
$12.02M
Perestroika
15 May 2024
Director
Buy indirect
2,000,000
$6.01
$12.02M
Perestroika (Cyprus) Ltd
15 May 2024
Director
Buy
2,000,000
$6.01
$12.02M
Mohn Frederik Wilhelm
27 Feb 2024
Director
Buy indirect
1,000,000
$4.89
$4.89M
Perestroika
27 Feb 2024
Director
Buy indirect
1,000,000
$4.89
$4.89M
Perestroika (Cyprus) Ltd
27 Feb 2024
Director
Buy
1,000,000
$4.89
$4.89M
Mohn Frederik Wilhelm
15 Sep 2023
Director
Buy indirect
1,978,396
—
no price
Perestroika
15 Sep 2023
Director
Buy indirect
1,978,396
—
no price
Perestroika (Cyprus) Ltd
15 Sep 2023
Director
Buy
1,978,396
—
no price
DEATON CHAD C
2 Mar 2023
Director
Buy
30,000
$7.40
$222.00K
DEATON CHAD C
9 Nov 2022
Director
Buy
50,000
$4.07
$203.45K
CHANG VANESSA C L
23 Jun 2022
Director
Buy
12,300
$3.21
$39.48K
Perestroika
13 May 2022
Director
Buy
2,000,000
$3.75
$7.50M
Mohn Frederik Wilhelm
13 May 2022
Director
Buy indirect
2,000,000
$3.75
$7.50M
CHANG VANESSA C L
12 May 2022
Director
Buy indirect
5,000
$3.37
$16.85K
CHANG VANESSA C L
11 May 2022
Director
Buy indirect
5,000
$3.61
$18.05K
Mohn Frederik Wilhelm
25 Jun 2021
Director
Buy indirect
1,000,000
$4.53
$4.53M
Perestroika
25 Jun 2021
Director
Buy
1,000,000
$4.53
$4.53M
Mohn Frederik Wilhelm
24 Jun 2021
Director
Buy indirect
1,000,000
$4.51
$4.51M
Perestroika
24 Jun 2021
Director
Buy
1,000,000
$4.51
$4.51M
Mohn Frederik Wilhelm
23 Jun 2021
Director
Buy indirect
1,000,000
$4.40
$4.40M
Perestroika
23 Jun 2021
Director
Buy
1,000,000
$4.40
$4.40M
Mohn Frederik Wilhelm
22 Jun 2021
Director
Buy indirect
1,000,000
$4.20
$4.20M
Perestroika
22 Jun 2021
Director
Buy
1,000,000
$4.20
$4.20M
de Saint Victor Diane
22 Jun 2021
Director
Buy
10,000
$4.18
$41.80K
Mohn Frederik Wilhelm
21 Jun 2021
Director
Buy indirect
1,000,000
$4.09
$4.09M
Perestroika
21 Jun 2021
Director
Buy
1,000,000
$4.09
$4.09M
Mohn Frederik Wilhelm
18 Jun 2021
Director
Buy indirect
1,000,000
$3.93
$3.93M
Perestroika
18 Jun 2021
Director
Buy
1,000,000
$3.93
$3.93M
Mohn Frederik Wilhelm
17 Jun 2021
Director
Buy indirect
1,900,000
$3.97
$7.54M
Perestroika
17 Jun 2021
Director
Buy
1,900,000
$3.97
$7.54M
Mohn Frederik Wilhelm
16 Jun 2021
Director
Buy indirect
2,000,000
$4.20
$8.40M
Perestroika
16 Jun 2021
Director
Buy
2,000,000
$4.20
$8.40M
Mohn Frederik Wilhelm
15 Jun 2021
Director
Buy indirect
3,000,000
$4.17
$12.51M
Perestroika
15 Jun 2021
Director
Buy
3,000,000
$4.17
$12.51M
CHANG VANESSA C L
11 Mar 2020
Director
Buy
5,000
$1.45
$7.25K
MULLER EDWARD R
9 Mar 2020
Director
Buy indirect
6,000
$1.71
$10.29K
CHANG VANESSA C L
6 Mar 2020
Director
Buy
5,000
$2.83
$14.15K
DEATON CHAD C
26 Feb 2020
Director
Buy
35,000
$3.55
$124.25K
CHANG VANESSA C L
25 Feb 2020
Director
Buy
5,400
$3.70
$19.98K
CHANG VANESSA C L
14 Aug 2019
Director
Buy
4,000
$4.00
$16.00K
CHANG VANESSA C L
12 Aug 2019
Director
Buy
3,500
$4.19
$14.67K
DEATON CHAD C
2 Aug 2019
Director
Buy
200
$5.29
$1.06K
DEATON CHAD C
2 Aug 2019
Director
Buy
24,800
$5.29
$131.19K
DAVIS HOWARD E
28 Jun 2019
EVP, CAO & CIO
Buy indirect
98,049
$6.35
$622.61K
CHANG VANESSA C L
6 Jun 2019
Director
Buy
4,300
$5.92
$25.46K
INTRIERI VINCENT J
7 May 2019
Director
Buy
100
$7.35
$734.50
INTRIERI VINCENT J
7 May 2019
Director
Buy
9,900
$7.35
$72.77K
CHANG VANESSA C L
10 Dec 2018
Director
Buy
6,000
$8.00
$48.00K
INTRIERI VINCENT J
16 Aug 2018
Director
Buy
10,000
$10.62
$106.20K
Mohn Frederik Wilhelm
2 Mar 2018
Director
Buy indirect
1,000,000
$9.30
$9.30M
Perestroika
2 Mar 2018
Director
Buy
1,000,000
$9.30
$9.30M
Mohn Frederik Wilhelm
1 Mar 2018
Director
Buy indirect
1,000,000
$9.28
$9.28M
Perestroika
1 Mar 2018
Director
Buy
1,000,000
$9.28
$9.28M
DAVIS HOWARD E
17 Aug 2017
EVP, CAO & CIO
Buy indirect
20,000
$7.32
$146.40K
DAVIS HOWARD E
17 Aug 2017
EVP, CAO & CIO
Buy
14,500
$7.32
$106.14K
DAVIS HOWARD E
17 Aug 2017
EVP, CAO & CIO
Buy
5,500
$7.32
$40.26K
CHANG VANESSA C L
17 Aug 2017
Director
Buy
2,000
$7.56
$15.12K
Show all 207 transactions →

What was left out

Form 4 filings counted 368
Amendments (4/A) skipped 14
Filings about a different issuer 2
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 16
Sales straight out of an exercise 0
Sales at will 37
Transactions with no price 3
Shares from compensation/vesting 219,482,719
Sales filed before the plan box existed 26
History held since 14 Nov 2016