undamentalytics Newsletter

Transocean Ltd. insider trading

Every open-market purchase and sale by Transocean Ltd.'s officers, directors and largest shareholders since November 4, 2021, and what the share price did next.

Insider purchase Insider sale Marker size reflects trade value. Weekly closes adjusted for splits; may be delayed.
Transocean Ltd. insider open-market trades
DateInsiderTrade SharesPriceValue 1M after 3M after 6M after

From insiders' Form 4 filings with the SEC: open-market purchases and sales only (awards, option exercises and shares withheld for tax are excluded), combined to one line per insider per day. "Plan" marks trades the filing says were made under a pre-set Rule 10b5-1 trading plan, which are scheduled in advance. Price changes run from the close on the trade date; hover a figure for the change relative to the S&P 500. Past moves don't predict future ones.

Does following Transocean Ltd.’s insiders pay?

From March 3, 2010 to July 7, 2026, 22 insiders reported 58 open-market purchases and 24 sales not made under a pre-set plan in Transocean Ltd. Twelve months after each purchase was reported, the shares were −44.5% against the S&P 500 on average (median −61.5%), over 24 purchases with a full year of prices; 8% beat the index. After sales, the shares moved −45.7% against the index over 12 months (a negative figure means selling was the right call). Buying each purchase the day after it was reported, an equal amount each, held 12 months or until that insider reported a sale, would have turned $10,000 on August 24, 2011 into $734 by November 2, 2026, −15.8% a year. It held shares 57% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $31,430 (+7.8% a year), and held throughout $83,621 (+15.0%).

$0$25.0k$50.0k$75.0k 20112013201520172019202120232025 $83.6k$31.4k$734
Copying Transocean Ltd.'s insidersS&P 500, same days investedS&P 500, held throughout $10,000 copying every open-market purchase by Transocean Ltd.'s insiders from August 24, 2011, before costs and taxes, marked weekly. Uninvested money earns the Treasury bill rate; the portfolio held shares 57% of the time.
Transocean Ltd.: each insider's record
InsiderRolePurchases12 months after their purchasesBeat the S&P 500Sales12 months after their salesLatest report
Mohn Frederik Wilhelm Director 13 −52.9% (4) 0% 0 — November 25, 2025
Perestroika Director 13 −52.9% (4) 0% 0 — November 25, 2025
Chang Vanessa C L Director 11 −31.4% (4) 25% 0 — May 2, 2025
Mackenzie Roderick James EVP, Chief Commercial Officer 0 — — 6 — March 5, 2026
Perestroika (cyprus) Ltd Director 6 −65.5% (3) 0% 0 — November 25, 2025
Davis Howard E EVP, CAO & CIO 2 −20.5% (2) 50% 3 −49.1% (3) July 1, 2019
Deaton Chad C Director 5 −60.6% (1) 0% 0 — July 7, 2026
Toma Ihab Magdy EVP & Chief of Staff 2 −18.1% (2) 0% 1 −77.8% (1) December 5, 2013
Intrieri Vincent J Director 2 −74.7% (2) 0% 0 — May 8, 2019
Mcnamara Martin B Director 0 — — 2 −21.7% (2) May 8, 2013
Muller Edward R Director 1 — — 1 −63.7% (1) March 9, 2020
Newman Steven L President & CEO 2 −18.4% (2) 0% 0 — December 2, 2014
Strachan Ian Director 0 — — 2 −21.7% (2) May 8, 2013
Tonnel David A SVP - CHIEF ACCOUNTING OFFICER 0 — — 2 −64.5% (2) September 5, 2023
De Saint Victor Diane Director 1 — — 0 — June 23, 2021
Long Brady K EVP & Chief Legal Officer 0 — — 1 — May 22, 2026
Mey Mark-Anthony Lovell EVP & CFO 0 — — 1 −54.8% (1) August 4, 2023
Sjobring Lars SVP and General Counsel 0 — — 1 −44.4% (1) September 23, 2015
Stobart John B EVP & COO 0 — — 1 −63.0% (1) August 27, 2014
Thigpen Jeremy D Executive Chair 0 — — 1 — December 1, 2025
Vayda Robert Thaddeus EVP, Chief Financial Officer 0 — — 1 — December 1, 2025
Whitmire John L Director 0 — — 1 −18.1% (1) March 3, 2010

Moves are the shares’ return including dividends minus the S&P 500’s, from the close on the first trading day after each report; the number of trades with a finished 12-month window is in brackets. Green means the trade went the insider’s way (a purchase ahead of the index, a sale followed by the shares trailing it). A trade reported both by a director or officer and by a fund or company they are linked to counts once here, under the person. Purchases count only where the share price actually traded was at least $5. These figures describe what the shares did, not why anyone traded. Insiders across all companies.

When several insiders traded Transocean Ltd.

Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Transocean Ltd. in reports dated in the 91 days before the month end, and how the stock did against the S&P 500 from that month end. After the 5 buying crowds with six months of prices, it averaged −1.3% against the index. After 1 selling crowd, −23.2%. One company's history is too short to judge by; the test across every company is the better guide.

MonthCrowd3 months on, vs S&P 5006 months12 months
February 27, 20263 selling−15.1%−23.2%not yet
March 28, 20243 buying−19.2%−41.3%−55.7%
June 28, 20192 buying−30.6%−8.7%−78.2%
March 29, 20182 buying+32.0%+27.9%−17.2%
August 31, 20172 buying+16.7%+7.2%+28.9%
December 30, 20112 buying+32.6%+8.4%+11.5%

Colours show whether the crowd was right: green when buyers were followed by a rise above the index, or sellers by a fall below it. Total returns from the month end; past patterns are not a forecast.

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