Transocean Ltd. (RIG) — Institutional Holders, Q2 2026

548 institutional investment managers reported a RIG position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $5.3B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← RIG stock profile

RIG in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

Added to

190

Trimmed

156

Sold out

Biggest buyers

UBS Group AGAdded · +20,319,471 sh+$99.4M
RENAISSANCE TECHNOLOGIESAdded · +11,392,425 sh+$55.7M
Castle Hook PartnersNew · +10,470,395 sh+$51.2M
MACKENZIE FINANCIALNew · +9,742,206 sh+$47.6M
Point72 Asset Management, L.P.Added · +8,766,385 sh+$42.9M

Biggest sellers

MARSHALL WACE, LLPTrimmed · -14,988,172 sh-$73.3M
DRIEHAUS CAPITAL MANAGEMENTSold out · -7,210,869 sh-$35.3M
Pilgrim Global AdvisorsTrimmed · -6,535,813 sh-$32.0M
TUDOR INVESTMENT ET ALSold out · -5,278,418 sh-$25.8M
Empyrean Capital PartnersSold out · -4,570,463 sh-$22.3M

RIG 13F holders ranked 1–100 of 548

Institutional investors reporting a position in Transocean Ltd. on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	BlackRock#1 · 94,727,924 sh	94,727,924	$453.9M	<0.01%	+7.2%
2	TWO SIGMA INVESTMENTS#2 · 73,461,304 sh	73,461,304	$268.2M	0.19%	-0.7%
3	DIMENSIONAL FUND ADVISORS#3 · 51,009,878 sh	51,009,878	$249.5M	0.05%	+4.5%
4	VANGUARD PORTFOLIO MANAGEMENT#4 · 49,296,587 sh	49,296,587	$241.1M	0.01%	+5.2%
5	VANGUARD CAPITAL MANAGEMENT#5 · 45,200,594 sh	45,200,594	$221.0M	<0.01%	+2.1%
6	D. E. Shaw#6 · 41,793,600 sh	41,793,600	$204.4M	0.10%	+6.4%
7	Hudson Bay Capital Management#7 · 120,378,000 sh	120,378,000	$185.8M	0.50%	-8.3%
8	Slate Path Capital#8 · 37,266,300 sh	37,266,300	$182.2M	2.52%	+24.0%
9	Capital World Investors#9 · 30,973,850 sh	30,973,850	$151.5M	0.02%	+4.7%
10	GEODE CAPITAL MANAGEMENT#10 · 28,561,101 sh	28,561,101	$139.7M	<0.01%	+21.7%
11	STATE STREET#11 · 27,148,850 sh	27,148,850	$132.8M	<0.01%	+8.7%
12	MORGAN STANLEY#12 · 26,692,648 sh	26,692,648	$130.5M	<0.01%	+23.0%
13	UBS Group AG#13 · 26,372,754 sh	26,372,754	$129.0M	0.02%	+335.7%
14	AMERICAN CENTURY COMPANIES#14 · 22,939,135 sh	22,939,135	$112.2M	0.05%	+0.8%
15	Dalal Street#15 · 20,398,659 sh	20,398,659	$99.7M	30.53%	0.0%
16	VAN ECK ASSOCIATES#16 · 19,794,432 sh	19,794,432	$96.8M	0.06%	-6.4%
17	Pilgrim Global Advisors#17 · 17,377,307 sh	17,377,307	$85.0M	18.23%	-27.3%
18	GOLDMAN SACHS GROUP#18 · 16,798,179 sh	16,798,179	$82.1M	<0.01%	+30.2%
19	Elliott Investment Management L.P.#19 · 15,626,834 sh	15,626,834	$76.4M	0.34%	0.0%
20	VOLORIDGE INVESTMENT MANAGEMENT#20 · 14,795,082 sh	14,795,082	$72.3M	0.31%	-10.6%
21	RENAISSANCE TECHNOLOGIES#21 · 14,527,153 sh	14,527,153	$71.0M	0.10%	+363.4%
22	Point72 Asset Management, L.P.#22 · 14,172,810 sh	14,172,810	$69.3M	0.08%	+162.1%
23	GENDELL JEFFREY L#23 · 13,853,533 sh	13,853,533	$67.7M	0.60%	+18.4%
24	Sculptor Capital#24 · 43,900,000 sh	43,900,000	$67.0M	0.55%	+7.3%
25	KEYBANK NATIONAL ASSOCIATION#25 · 13,040,146 sh	13,040,146	$63.8M	0.21%	+3.0%
26	FIL Ltd#26 · 11,603,322 sh	11,603,322	$56.7M	0.04%	+3.2%
27	BANK OF AMERICA#27 · 11,108,135 sh	11,108,135	$54.3M	<0.01%	+29.1%
28	Castle Hook Partners#28 · 10,470,395 sh	10,470,395	$51.2M	0.23%	New
29	CHARLES SCHWAB INVESTMENT MANAGEMENT#29 · 10,062,265 sh	10,062,265	$49.2M	<0.01%	+2.6%
30	MACKENZIE FINANCIAL#30 · 9,742,206 sh	9,742,206	$47.6M	0.05%	New
31	HRT FINANCIAL#31 · 9,522,046 sh	9,522,046	$46.6M	0.12%	+566.9%
32	NORTHERN#32 · 8,961,215 sh	8,961,215	$43.8M	<0.01%	+10.1%
33	CWA Asset Management Group#33 · 8,688,877 sh	8,688,877	$42.5M	—	+66.9%
34	Canoe Financial#34 · 8,682,600 sh	8,682,600	$42.5M	—	+143.1%
35	Bridgewater Associates#35 · 7,962,797 sh	7,962,797	$38.9M	0.16%	+1803.0%
36	SUSQUEHANNA INTERNATIONAL GROUP, LLP#36 · 7,852,919 sh	7,852,919	$38.4M	<0.01%	+26.0%
37	Assenagon Asset Management S.A.#37 · 7,664,059 sh	7,664,059	$37.5M	—	New
38	Ninepoint Partners#38 · 7,000,000 sh	7,000,000	$34.2M	2.61%	0.0%
39	ION Fund Management Ltd#39 · 6,750,000 sh	6,750,000	$33.0M	2.09%	+50.4%
40	Squarepoint Ops#40 · 6,740,869 sh	6,740,869	$33.0M	0.04%	+60.2%
41	VANGUARD FIDUCIARY#41 · 6,669,333 sh	6,669,333	$32.6M	<0.01%	+4.0%
42	JPMORGAN CHASE#42 · 5,849,786 sh	5,849,786	$29.7M	<0.01%	+30.4%
43	BALYASNY ASSET MANAGEMENT L.P.#43 · 10,766,158 sh	10,766,158	$29.2M	0.04%	+328.8%
44	Caledonia (Private) Investments Pty Ltd#44 · 5,582,594 sh	5,582,594	$27.3M	0.93%	New
45	FMR#45 · 7,990,124 sh	7,990,124	$24.3M	<0.01%	+25.2%
46	CSS#46 · 15,168,000 sh	15,168,000	$23.5M	0.91%	-37.9%
47	Bank of New York Mellon#47 · 4,791,474 sh	4,791,474	$23.4M	<0.01%	-15.9%
48	CIBC WORLD MARKET#48 · 4,747,864 sh	4,747,864	$23.2M	0.04%	-8.8%
49	Electron Capital Partners#49 · 4,652,185 sh	4,652,185	$22.7M	0.91%	New
50	Solus Alternative Asset Management#50 · 4,470,000 sh	4,470,000	$21.9M	6.39%	0.0%
51	MIZUHO SECURITIES USA#51 · 10,543,000 sh	10,543,000	$21.2M	0.21%	0.0%
52	TIG Advisors#52 · 3,981,919 sh	3,981,919	$19.5M	0.86%	+59.5%
53	Penn Capital Management Company#53 · 3,566,644 sh	3,566,644	$17.5M	1.11%	+13.1%
54	Man Group plc#54 · 3,447,729 sh	3,447,729	$16.9M	0.03%	+9.4%
55	Madison Asset Management#55 · 3,030,000 sh	3,030,000	$14.8M	0.18%	0.0%
56	Arvin Capital Management#56 · 2,982,831 sh	2,982,831	$14.6M	1.90%	+1538.9%
57	Connor, Clark & Lunn Investment Management Ltd.#57 · 2,815,057 sh	2,815,057	$13.8M	0.03%	+38.5%
58	LORD, ABBETT#58 · 8,742,000 sh	8,742,000	$13.6M	0.04%	-22.3%
59	Rokos Capital Management LLP#59 · 2,619,483 sh	2,619,483	$12.8M	0.05%	-17.4%
60	PANAGORA ASSET MANAGEMENT#60 · 2,608,633 sh	2,608,633	$12.8M	0.04%	+4.1%
61	AQR CAPITAL MANAGEMENT#61 · 2,543,245 sh	2,543,245	$12.4M	<0.01%	-22.4%
62	NEW YORK STATE COMMON RETIREMENT FUND#62 · 2,528,283 sh	2,528,283	$12.4M	0.02%	+16.2%
63	PRIMECAP MANAGEMENT#63 · 2,493,290 sh	2,493,290	$12.2M	<0.01%	-3.1%
64	PUBLIC SECTOR PENSION INVESTMENT BOARD#64 · 2,376,569 sh	2,376,569	$11.6M	0.03%	0.0%
65	Nuveen#65 · 2,329,295 sh	2,329,295	$11.4M	<0.01%	-48.0%
66	FIDEURAM - INTESA SANPAOLO PRIVATE BANKING S.P.A.#66 · 2,102,868 sh	2,102,868	$10.3M	—	-19.0%
67	Trek Financial#67 · 2,089,947 sh	2,089,947	$10.2M	0.51%	+33.3%
68	MASTERS CAPITAL MANAGEMENT#68 · 2,000,000 sh	2,000,000	$9.8M	0.25%	0.0%
69	CAPITAL FUND MANAGEMENT S.A.#69 · 1,995,840 sh	1,995,840	$9.8M	0.04%	New
70	Swiss National Bank#70 · 1,943,130 sh	1,943,130	$9.5M	<0.01%	-1.0%
71	CANADA PENSION PLAN INVESTMENT BOARD#71 · 1,930,700 sh	1,930,700	$9.4M	<0.01%	+17.4%
72	WELLS FARGO & COMPANY#72 · 2,895,815 sh	2,895,815	$9.0M	<0.01%	-7.7%
73	CASTLEARK MANAGEMENT#73 · 1,813,160 sh	1,813,160	$8.9M	0.24%	+116.6%
74	Russell Investments Group, Ltd.#74 · 1,804,318 sh	1,804,318	$8.8M	<0.01%	+31.3%
75	Neuberger Berman Group#75 · 1,785,212 sh	1,785,212	$8.7M	<0.01%	+14.8%
76	Fideuram Asset Management (Ireland) dac#76 · 1,401,069 sh	1,401,069	$8.7M	0.17%	+5950.3%
77	Invesco Ltd.#77 · 1,727,732 sh	1,727,732	$8.4M	<0.01%	-26.8%
78	CLOUGH CAPITAL PARTNERS L P#78 · 1,700,814 sh	1,700,814	$8.3M	0.68%	-52.9%
79	Creative Planning#79 · 1,632,895 sh	1,632,895	$8.0M	<0.01%	+3.2%
80	Flat Footed#80 · 1,603,778 sh	1,603,778	$7.8M	0.60%	New
81	Forvis Mazars Wealth Advisors#81 · 1,502,697 sh	1,502,697	$7.3M	—	-8.5%
82	ALGERT GLOBAL#82 · 1,427,890 sh	1,427,890	$7.0M	0.08%	+2.9%
83	ALLIANCEBERNSTEIN L.P.#83 · 1,037,415 sh	1,037,415	$6.9M	<0.01%	-1.5%
84	MANUFACTURERS LIFE INSURANCE COMPANY, THE#84 · 1,378,386 sh	1,378,386	$6.7M	<0.01%	+0.1%
85	RHUMBLINE ADVISERS#85 · 1,291,460 sh	1,291,460	$6.3M	<0.01%	+9.5%
86	Schonfeld Strategic Advisors#86 · 1,271,477 sh	1,271,477	$6.2M	0.02%	+1720.1%
87	PRICE T ROWE ASSOCIATES#87 · 1,271,051 sh	1,271,051	$6.2M	<0.01%	+22.2%
88	NOMURA#88 · 1,161,607 sh	1,161,607	$5.7M	<0.01%	+32.6%
89	Gotham Asset Management#89 · 1,144,956 sh	1,144,956	$5.6M	0.01%	+3.3%
90	Hosking Partners LLP#90 · 1,142,083 sh	1,142,083	$5.6M	—	-13.7%
91	DEUTSCHE BANK AG\#91 · 1,078,828 sh	1,078,828	$5.3M	<0.01%	+14.5%
92	Lloyd Harbor Capital Management#92 · 1,075,100 sh	1,075,100	$5.3M	5.41%	-18.9%
93	MARSHALL WACE, LLP#93 · 1,055,592 sh	1,055,592	$5.2M	<0.01%	-93.4%
94	IMC-Chicago#94 · 1,046,762 sh	1,046,762	$5.1M	<0.01%	+2321.2%
95	Legal & General Group Plc#95 · 997,222 sh	997,222	$4.9M	<0.01%	+3.6%
96	O'SHAUGHNESSY ASSET MANAGEMENT#96 · 990,804 sh	990,804	$4.8M	0.02%	New
97	Polar Capital Plc#97 · 3,000,000 sh	3,000,000	$4.8M	0.01%	New
98	BNP PARIBAS FINANCIAL MARKETS#98 · 986,927 sh	986,927	$4.8M	<0.01%	-69.6%
99	BEACONLIGHT CAPITAL#99 · 977,964 sh	977,964	$4.8M	1.69%	+199.1%
100	Oxbow Advisors#100 · 959,604 sh	959,604	$4.7M	0.38%	+3.7%

Funds that sold out of RIG in Q2 2026 (73)

Held RIG at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held RIG in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
DRIEHAUS CAPITAL MANAGEMENT7,210,869 sh	7,210,869	$47.8M
TUDOR INVESTMENT ET AL5,278,418 sh	5,278,418	$35.0M
Empyrean Capital Partners4,570,463 sh	4,570,463	$30.3M
Trexquant Investment3,075,885 sh	3,075,885	$20.4M
Quadrature Capital Ltd2,592,119 sh	2,592,119	$17.2M
Contrarius Group Ltd2,470,095 sh	2,470,095	$16.4M
Burkehill Global Management2,000,000 sh	2,000,000	$13.3M
Aquatic Capital Management1,766,695 sh	1,766,695	$11.7M
Polymer Capital Management (US)1,004,323 sh	1,004,323	$6.7M
Monolith Management Ltd966,000 sh	966,000	$6.4M
XTX Topco Ltd661,427 sh	661,427	$4.4M
Informed Momentum617,480 sh	617,480	$4.1M
GSA CAPITAL PARTNERS LLP372,401 sh	372,401	$2.5M
GILDER GAGNON HOWE319,345 sh	319,345	$2.1M
China Universal Asset Management , Ltd.221,900 sh	221,900	$1.5M
Triasima Portfolio Management135,855 sh	135,855	$900.7K
Counterpoint Mutual Funds133,401 sh	133,401	$884.4K
Beirne Wealth Consulting Services100,040 sh	100,040	$663.3K
K.J. Harrison & Partners100,000 sh	100,000	$663.0K
Eschler Asset Management LLP94,000 sh	94,000	$623.2K
FORA Capital84,714 sh	84,714	$561.7K
nVerses Capital81,926 sh	81,926	$543.2K
Kingsview Wealth Management62,460 sh	62,460	$414.1K
MIRABELLA FINANCIAL SERVICES LLP50,031 sh	50,031	$331.7K
CenterBook Partners43,174 sh	43,174	$286.2K
Traynor Capital Management39,307 sh	39,307	$261.4K
PINNACLE ASSOCIATES LTD34,537 sh	34,537	$229.0K
Focus Partners Wealth35,870 sh	35,870	$228.8K
JAG CAPITAL MANAGEMENT32,349 sh	32,349	$214.5K
IEQ CAPITAL31,780 sh	31,780	$210.7K
Freedom Day Solutions30,919 sh	30,919	$205.0K
SilverOak Wealth Management30,753 sh	30,753	$203.9K
111 Capital29,075 sh	29,075	$192.8K
THOMPSON DAVIS27,950 sh	27,950	$185.3K
QUADRANT CAPITAL GROUP41,072 sh	41,072	$185.1K
Stratos Wealth Partners, LTD.23,855 sh	23,855	$158.2K
OCCUDO QUANTITATIVE STRATEGIES21,490 sh	21,490	$146.6K
R Squared Ltd21,993 sh	21,993	$145.8K
WINTON GROUP Ltd21,600 sh	21,600	$143.2K
Zullo Investment Group20,200 sh	20,200	$133.9K
MQS Management19,798 sh	19,798	$131.3K
Farringdon Capital, Ltd.19,541 sh	19,541	$129.6K
Prosperitas Financial19,370 sh	19,370	$128.4K
Left Brain Wealth Management17,000 sh	17,000	$112.7K
Ethic16,915 sh	16,915	$112.1K
JANE STREET GROUP15,935 sh	15,935	$105.6K
Aster Capital Management (DIFC) Ltd30,219 sh	30,219	$95.8K
Catalyst Funds Management Pty Ltd12,600 sh	12,600	$83.5K
Calamos Advisors12,450 sh	12,450	$82.5K
Concurrent Investment Advisors12,258 sh	12,258	$81.3K
Ground Swell Capital12,057 sh	12,057	$79.9K
GREAT LAKES ADVISORS11,819 sh	11,819	$78.4K
Financial Sense Advisors10,869 sh	10,869	$72.1K
Root Financial Partners7,787 sh	7,787	$51.6K
Golden State Equity Partners6,497 sh	6,497	$43.1K
Daytona Street Capital4,000 sh	4,000	$25.9K
Willis Johnson & Associates3,199 sh	3,199	$21.2K
Colonial Advisors2,000 sh	2,000	$13.3K
Hudson Bay Capital Management1,700 sh	1,700	$11.3K
Wealth Preservation Advisors1,464 sh	1,464	$9.7K
DELTA ASSET MANAGEMENT700 sh	700	$4.6K
BALLAST ADVISORS615 sh	615	$4.1K
TWIN PEAKS WEALTH ADVISORS413 sh	413	$2.7K
Kentucky Retirement Systems27,985 sh	27,985	$1.4K
C M BIDWELL & ASSOCIATES LTD144 sh	144	$955.00
TOMPKINS FINANCIAL136 sh	136	$902.00
Center for Financial Planning130 sh	130	$862.00
Rachor Investment Advisory Services68 sh	68	$451.00
Vermillion Wealth Management59 sh	59	$391.00
Global Wealth Strategies & Associates38 sh	38	$252.00
CURIO WEALTH30 sh	30	$199.00
Western Wealth Management26 sh	26	$172.00
MBM WEALTH CONSULTANTS10 sh	10	$66.00

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.