Transocean Ownership | Who Owns Transocean?

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Transocean Ownership Summary

Transocean is owned by 90.76% institutional investors, 9.25% insiders. Vanguard group is the largest institutional shareholder, holding 10.65% of RIG shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 2.88% of its assets in Transocean shares.

RIG Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Transocean	90.76%	9.25%	-0.01%
Sector	Energy Stocks	62.94%	15.44%	21.62%
Industry	Oil & Gas Drilling Stocks	94.33%	7.96%	-2.29%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	97.01M	10.65%	$400.64M
Blackrock funding, inc. /de	91.93M	8.29%	$449.53M
Blackrock	64.85M	7.92%	$346.96M
Dimensional fund advisors lp	51.01M	4.60%	$249.45M
Two sigma investments, lp	46.21M	4.17%	$225.94M
Vanguard capital management	45.20M	4.08%	$221.03M
D. e. shaw	41.79M	3.77%	$204.37M
Slate path capital lp	37.27M	3.36%	$182.23M
Capital world investors	30.97M	2.79%	$151.46M
Geode capital management	28.56M	2.58%	$139.69M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Dalal street	20.40M	30.53%	$99.75M
Pilgrim global advisors	17.38M	18.23%	$84.98M
Solus alternative asset management lp	4.47M	6.39%	$21.86M
Lloyd harbor capital management	1.08M	5.41%	$5.26M
Packer	1.41M	3.48%	$9.31M
Ninepoint partners lp	7.00M	2.61%	$34.23M
Slate path capital lp	37.27M	2.52%	$182.23M
Arvin capital management lp	2.98M	1.90%	$14.59M
Ghisallo capital management	18.50M	1.89%	$57.72M
Cqs (us)	1.29M	1.89%	$6.93M

Top Buyers

Holder	Shares	% Assets	Change
Blackrock	64.85M	0.01%	40.08M
Ubs group	26.37M	0.02%	20.32M
Ghisallo capital management	18.50M	1.89%	18.50M
Renaissance	14.53M	0.10%	11.39M
Castle hook partners lp	10.47M	0.23%	10.47M

Top Sellers

Holder	Shares	% Assets	Change
Marshall wace, llp	1.06M	0.00%	-14.99M
Lombard odier asset management (usa)	585.00K	0.23%	-7.82M
Driehaus capital management	-	-	-7.21M
Pilgrim global advisors	17.38M	18.23%	-6.54M
Tudor investment corp et al	-	-	-5.28M

New Positions

Holder	Shares	% Assets	Change	Value
Ghisallo capital management	18.50M	1.89%	18.50M	$57.72M
Castle hook partners lp	10.47M	0.23%	10.47M	$51.20M
Sixth street partners management company	10.06M	0.01%	10.06M	$49.20M
Yaupon capital management lp	8.25M	0.98%	8.25M	$25.74M
Caledonia (private) investments pty	5.58M	0.93%	5.58M	$27.30M

Sold Out

Holder	Change
Sachetta	-2.00
Financial gravity asset management	-5.00
Traub capital management	-6.00
Raleigh capital management	-9.00
Mbm wealth consultants	-10.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Jun 30, 2026	582	-0.51%	1,006,521,349	11.80%	90	1.38%	263	-17.81%	162	24.62%
Mar 31, 2026	296	-41.04%	232,504,625	-69.87%	24	0.34%	148	-43.30%	68	-32.67%
Dec 31, 2025	423	-14.02%	676,097,129	-9.72%	74	1.04%	222	-12.25%	81	-17.35%
Sep 30, 2025	474	7.73%	743,086,308	34.06%	83	2.15%	243	8.97%	93	-5.10%
Jun 30, 2025	442	2.79%	599,679,508	-0.96%	67	1.44%	221	24.86%	99	-16.10%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard Total Stock Mkt Idx Inv	31.85M	2.88%	280.30K
Vanguard Morn Total Stk Mkt Idx Investor	31.85M	2.88%	280.30K
Vanguard MStar Total Stk Mkt Idx Invest	31.97M	2.86%	116.25K
Vanguard US Total Market Shares ETF	25.15M	2.86%	2.07M
Jupiter Merian Glb Eq AbsRet I USD Acc	25.17M	2.85%	25.17M
iShares Russell 2000 ETF	24.93M	2.25%	-442.85K
Vanguard Small Cap Index	23.11M	2.07%	54.65K
Avantis US Small Cap Value ETF	22.81M	2.06%	82.60K
American Funds SMALLCAP World A	22.68M	2.05%	1.50M
Vanguard Capital Opportunity Inv	13.21M	1.50%	-5.00K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Jul 02, 2026	DEATON CHAD C	-	Buy	$173.25K
May 21, 2026	Long Brady K	EVP & Chief Legal Officer	Sell	$608.97K
Mar 04, 2026	Mackenzie Roderick James	EVP, Chief Commercial Officer	Sell	$498.43K
Jan 26, 2026	Long Brady K	EVP & Chief Legal Officer	Sell	$80.42K
Jan 27, 2026	Long Brady K	EVP & Chief Legal Officer	Sell	$496.46K

Insider Transactions Trends

Date	Buy	Sell
2026 Q2	-	1
2026 Q1	-	5
2025 Q4	3	8
2025 Q3	3	-
2025 Q2	1	3

RIG Ownership FAQ

Who Owns Transocean?

Transocean shareholders are primarily institutional investors at 90.76%, followed by 9.25% insiders and -0.01% retail investors. The average institutional ownership in Transocean's industry, Oil & Gas Drilling Stocks, is 94.33%, which Transocean falls below.

Who owns the most shares of Transocean?

Transocean’s largest shareholders are Vanguard group (97.01M shares, 10.65%), Blackrock funding, inc. /de (91.93M shares, 8.29%), and Blackrock (64.85M shares, 7.92%). Together, they hold 26.86% of Transocean’s total shares outstanding.

Does Blackrock own Transocean?

Yes, BlackRock owns 7.92% of Transocean, totaling 64.85M shares as of Jun 2024. This represents 0.01% of BlackRock's total assets, with a market value of 346.96M$. In the last quarter, BlackRock increased its holdings by 40.08M shares, a 161.77% change.

Who is Transocean’s biggest shareholder by percentage of total assets invested?

Dalal street is Transocean’s biggest shareholder by percentage of total assets invested, with 30.53% of its assets in 20.4M Transocean shares, valued at 99.75M$.

Who is the top mutual fund holder of Transocean shares?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of Transocean shares, with 2.88% of its total shares outstanding invested in 31.85M Transocean shares.

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