SDRL US Equity

SEADRILL Ltd

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Energy · Drilling Oil & Gas Wells · CIK 1737706 · FYE 1231

$41.34

+0.33 (+0.80%)

USD · as of 2026-07-29 · marketstack

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Institutional ownership· 13F filers holding SDRL · 2026-Q1 methodology → sources →

244 holders

% of shares outstanding held

100.7%

Shares held (13F)

62,984,053

Reporting holders

244

Institutional 13F holdings sum to 100.7% of shares outstanding. Readings above 100% reflect securities-lending double counting: shares on loan to short sellers are reported long by both the lending institution and the one that bought them. FINRA short interest of 4,546,083 shares (settlement 2026-04-30) accounts for the excess.

Top holders

largest 100 of 244 · Δ vs 2025-Q4

#	Holder	Shares	Value	% of shares out	Δ QoQ
1	BlackRock, Inc.	4,948,2724.9M	$225M	7.91%	—
2	Elliott Investment Management L.P.	4,719,0854.7M	$215M	7.55%	ADD 4%
3	UBS Group AG	3,805,9493.8M	$173M	6.09%	ADD 28%
4	DIMENSIONAL FUND ADVISORS LP	3,553,2813.6M	$162M	5.68%	ADD 10%
5	VANGUARD CAPITAL MANAGEMENT LLC	2,690,4692.7M	$122M	4.30%	NEW†
6	ADAGE CAPITAL PARTNERS GP, L.L.C.	2,463,4362.5M	$112M	3.94%	TRIM -29%
7	Goehring & Rozencwajg Associates, LLC	2,449,5652.4M	$111M	3.92%	ADD 28%
8	Patient Capital Management, LLC	2,152,6852.2M	$98M	3.44%	ADD 5%
9	BNP PARIBAS FINANCIAL MARKETS	2,104,7542.1M	$96M	3.37%	ADD 26%
10	STATE STREET CORP	1,805,2321.8M	$82M	2.89%	ADD 6%
11	CITADEL ADVISORS LLC	1,679,2461.7M	$76M	2.69%	ADD 31%
12	GEODE CAPITAL MANAGEMENT, LLC	1,452,2451.5M	$66M	2.32%	ADD 3%
13	AMERICAN CENTURY COMPANIES INC	1,430,7431.4M	$65M	2.29%	ADD 18%
14	Condire Management, LP	1,279,9681.3M	$58M	2.05%	—
15	CANYON CAPITAL ADVISORS LLC	1,261,7791.3M	$57M	2.02%	TRIM -66%
16	FMR LLC	1,176,5521.2M	$54M	1.88%	ADD 14%
17	WELLINGTON MANAGEMENT GROUP LLP	991,549991,549	$45M	1.59%	TRIM -15%
18	GOLDMAN SACHS GROUP INC	956,495956,495	$44M	1.53%	TRIM -16%
19	BARCLAYS PLC	951,105951,105	$43M	1.52%	ADD 35%
20	Webs Creek Capital Management LP	896,939896,939	$41M	1.43%	ADD 2%
21	Merewether Investment Management, LP	867,338867,338	$39M	1.39%	NEW
22	Sagefield Capital LP	831,355831,355	$38M	1.33%	TRIM -10%
23	Qube Research & Technologies Ltd	822,881822,881	$37M	1.32%	ADD 102%
24	Hosking Partners LLP	782,944782,944	$36M	1.25%	ADD 10%
25	VANGUARD PORTFOLIO MANAGEMENT LLC	776,988776,988	$35M	1.24%	NEW
26	ALLIANCEBERNSTEIN L.P.	1,007,8191.0M	$35M	1.61%	—
27	MORGAN STANLEY	718,762718,762	$33M	1.15%	ADD 13%
28	DNB Asset Management AS	620,783620,783	$28M	0.99%	TRIM -28%
29	Packer & Co Ltd	613,080613,080	$28M	0.98%	ADD 148%
30	T. Rowe Price Investment Management, Inc.	547,475547,475	$25M	0.88%	TRIM -28%
31	NORTHERN TRUST CORP	544,278544,278	$25M	0.87%	ADD 4%
32	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	513,099513,099	$23M	0.82%	—
33	ING GROEP NV	434,513434,513	$20M	0.69%	—
34	SYSTEMATIC FINANCIAL MANAGEMENT LP	422,369422,369	$19M	0.68%	TRIM -2%
35	VANGUARD FIDUCIARY TRUST CO	411,821411,821	$19M	0.66%	NEW
36	BANK OF AMERICA CORP /DE/	387,160387,160	$18M	0.62%	TRIM -41%
37	AQR CAPITAL MANAGEMENT LLC	383,736383,736	$17M	0.61%	—
38	Man Group plc	382,953382,953	$17M	0.61%	ADD 80%
39	BRIDGEWAY CAPITAL MANAGEMENT, LLC	374,079374,079	$17M	0.60%	TRIM -10%
40	Squarepoint Ops LLC	352,600352,600	$16M	0.56%	—
41	HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND	342,645342,645	$16M	0.55%	ADD 4%
42	Contrarius Group Holdings Ltd	318,958318,958	$15M	0.51%	ADD 29%
43	SIR Capital Management, L.P.	301,799301,799	$14M	0.48%	ADD 96%
44	Empowered Funds, LLC	265,749265,749	$12M	0.42%	TRIM -7%
45	DEUTSCHE BANK AG\	256,423256,423	$12M	0.41%	ADD 2%
46	683 Capital Management, LLC	250,000250,000	$11M	0.40%	ADD 25%
47	Monaco Asset Management SAM	219,671219,671	$10M	0.35%	TRIM -15%
48	THOMPSON SIEGEL & WALMSLEY LLC	215,484215,484	$10M	0.34%	TRIM -29%
49	Balyasny Asset Management L.P.	203,778203,778	$9M	0.33%	NEW
50	Oceanic Investment Management LTD	187,850187,850	$9M	0.30%	ADD 79%
51	Bank of New York Mellon Corp	181,147181,147	$8M	0.29%	TRIM -3%
52	Nuveen, LLC	170,178170,178	$8M	0.27%	ADD 14%
53	CITIGROUP INC	162,855162,855	$7M	0.26%	ADD 380%
54	Foresight Global Investors, Inc.	161,105161,105	$7M	0.26%	TRIM -34%
55	FRANKLIN RESOURCES INC	162,424162,424	$7M	0.26%	NEW
56	Edgestream Partners, L.P.	158,279158,279	$7M	0.25%	ADD 64%
57	Jump Financial, LLC	145,555145,555	$7M	0.23%	NEW
58	Creative Planning	141,066141,066	$6M	0.23%	ADD 7%
59	Azarias Capital Management, L.P.	136,645136,645	$6M	0.22%	NEW
60	ROBOTTI ROBERT	131,860131,860	$6M	0.21%	ADD 597%
61	MILLENNIUM MANAGEMENT LLC	130,146130,146	$6M	0.21%	TRIM -59%
62	NEUBERGER BERMAN GROUP LLC	128,085128,085	$6M	0.20%	—
63	HRT FINANCIAL LP	123,465123,465	$6M	0.20%	ADD 143%
64	JPMORGAN CHASE & CO	119,860119,860	$5M	0.19%	TRIM -16%
65	Swiss National Bank	117,200117,200	$5M	0.19%	—
66	FIL Ltd	113,262113,262	$5M	0.18%	NEW
67	Hartree Partners, LP	107,300107,300	$5M	0.17%	NEW
68	Walleye Capital LLC	104,524104,524	$5M	0.17%	TRIM -89%
69	SG Americas Securities, LLC	101,474101,474	$5M	0.16%	ADD 726%
70	LONESTAR CAPITAL MANAGEMENT LLC	100,000100,000	$5M	0.16%	TRIM -50%
71	FIRST TRUST ADVISORS LP	99,31599,315	$5M	0.16%	TRIM -24%
72	Assenagon Asset Management S.A.	98,79698,796	$4M	0.16%	—
73	Pinpoint Asset Management (Singapore) Pte. Ltd.	97,79797,797	$4M	0.16%	ADD 239%
74	FEDERATED HERMES, INC.	93,47693,476	$4M	0.15%	ADD 2%
75	Glenorchy Capital Ltd	81,47781,477	$4M	0.13%	NEW
76	RHUMBLINE ADVISERS	81,32281,322	$4M	0.13%	—
77	Atom Investors LP	74,89674,896	$3M	0.12%	ADD 25%
78	Russell Investments Group, Ltd.	74,73574,735	$3M	0.12%	TRIM -4%
79	CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	72,90972,909	$3M	0.12%	ADD 26%
80	Hara Capital LLC	72,67472,674	$3M	0.12%	ADD 42%
81	Quantinno Capital Management LP	71,91671,916	$3M	0.12%	ADD 92%
82	RAYMOND JAMES FINANCIAL INC	70,00070,000	$3M	0.11%	ADD 10%
83	PRICE T ROWE ASSOCIATES INC /MD/	69,36669,366	$3M	0.11%	ADD 30%
84	DYMON ASIA CAPITAL (SINGAPORE) PTE. LTD.	66,30066,300	$3M	0.11%	NEW
85	NEW YORK STATE COMMON RETIREMENT FUND	64,66464,664	$3M	0.10%	TRIM -21%
86	BOOTHBAY FUND MANAGEMENT, LLC	63,82763,827	$3M	0.10%	ADD 80%
87	Tejara Capital Ltd	56,31956,319	$3M	0.09%	TRIM -85%
88	LMR Partners LLP	55,36355,363	$3M	0.09%	NEW
89	Orvieto Partners, L.P.	55,00055,000	$3M	0.09%	TRIM -45%
90	XTX Topco Ltd	53,97753,977	$2M	0.09%	NEW
91	Mountain Lake Investment Management LLC	51,81251,812	$2M	0.08%	TRIM -59%
92	State of New Jersey Common Pension Fund D	50,30050,300	$2M	0.08%	TRIM -27%
93	D. E. Shaw & Co., Inc.	49,13949,139	$2M	0.08%	TRIM -19%
94	Invesco Ltd.	47,22547,225	$2M	0.08%	TRIM -48%
95	First Eagle Investment Management, LLC	47,00047,000	$2M	0.08%	TRIM -2%
96	VANGUARD ASSET MANAGEMENT, Ltd	44,97344,973	$2M	0.07%	NEW
97	SUSQUEHANNA INTERNATIONAL GROUP, LLP	42,79842,798	$2M	0.07%	ADD 524%
98	MILFAM LLC	40,00040,000	$2M	0.06%	NEW
99	IEQ CAPITAL, LLC	39,64639,646	$2M	0.06%	TRIM -41%
100	Legal & General Group Plc	39,17339,173	$2M	0.06%	TRIM -15%

† a filer this large appearing as NEW usually reflects a renamed or succeeded filing entity (the old name stops filing the same quarter) — not a brand-new position.

Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.

Holder trends· top 15 holders · shares held over 6 quarters

green added · red trimmed

Holder

2024-Q4

2025-Q1

2025-Q2

2025-Q3

2025-Q4

2026-Q1

Latest value

BlackRock, Inc.

3.8M

3.7M

4.9M

5.0M

4.9M

$225M

Elliott Investment Management L.P.

3.7M

4.6M

4.7M

$215M

UBS Group AG

2.3M

4.1M

3.7M

3.1M

3.0M

3.8M

$173M

DIMENSIONAL FUND ADVISORS LP

3.5M

3.4M

3.3M

3.2M

3.6M

$162M

VANGUARD CAPITAL MANAGEMENT LLC

—

2.7M

$122M

ADAGE CAPITAL PARTNERS GP, L.L.C.

3.4M

4.2M

3.1M

3.5M

2.5M

$112M

Goehring & Rozencwajg Associates, LLC

476K

1.2M

1.7M

1.9M

2.4M

$111M

Patient Capital Management, LLC

1.7M

2.0M

2.2M

2.1M

2.2M

$98M

BNP PARIBAS FINANCIAL MARKETS

1.7M

2.1M

$96M

STATE STREET CORP

1.2M

1.1M

1.4M

1.7M

1.8M

$82M

CITADEL ADVISORS LLC

—

68K

—

68K

1.3M

1.7M

$76M

GEODE CAPITAL MANAGEMENT, LLC

833K

802K

1.4M

1.5M

$66M

AMERICAN CENTURY COMPANIES INC

232K

456K

538K

884K

1.2M

1.4M

$65M

Condire Management, LP

3.0M

3.1M

1.3M

$58M

CANYON CAPITAL ADVISORS LLC

4.9M

4.2M

3.7M

1.3M

$57M

Shares reported each quarter by the largest current holders. Green = added vs the prior filing, red = trimmed, grey = roughly held; a dash is a quarter with no 13F on file (a gap is skipped, not read as an exit). 13F is filed up to 45 days after quarter-end. Up to 40 quarters (10 years) available — use the selector above.

Institutional footprint by quarter

Line breaks are honest gaps — quarters with no 13F record, or a suppressed % — never interpolated. % of shares outstanding uses today's share count for every quarter (the only count stored).

Quarter	Holders	Shares held	% shares out	Value held
2026-Q1	244	62,984,053	100.7%	$2.9B
2025-Q4	202	65,376,984	104.6%	$2.3B

Short interest has its own tab now — open SI →

Source: SEC Form 13F — every institution manager (≥ $100M in 13F securities) reporting a long US-listed position, across ~10,250 filers over 10 years of history. 13F is long-only, US-listed, filed up to 45 days after quarter-end.

Activists & large holders· Schedule 13D/G beneficial owners · SDRL

Activists — 13D, active intent

Elliott Investment Management L.P.6.8%NEWSCHEDULE 13D/A · Amd 7 · event 2025-12-16SEC →

4,213,146 shares

Large holders — 13G, passive (top 5 of 7 by % of class)

Holder	% of class	Type	As of
BlackRock, Inc.	7.3%	QII	2025-06-30	SEC →
DIMENSIONAL FUND ADVISORS LP	5.4%	QII	2024-12-31	SEC →
VANGUARD CAPITAL MANAGEMENT LLC	5.04%	QII	2026-03-31	SEC →

Institutional ownership· 13F filers holding SDRL · 2026-Q1 methodology → sources →

244 holders

% of shares outstanding held

100.7%

Shares held (13F)

62,984,053

Reporting holders

244

Top holders

largest 100 of 244 · Δ vs 2025-Q4

#	Holder	Shares	Value	% of shares out	Δ QoQ
1	BlackRock, Inc.	4,948,2724.9M	$225M	7.91%	—
2	Elliott Investment Management L.P.	4,719,0854.7M	$215M	7.55%	ADD 4%
3	UBS Group AG	3,805,9493.8M	$173M	6.09%	ADD 28%
4	DIMENSIONAL FUND ADVISORS LP	3,553,2813.6M	$162M	5.68%	ADD 10%
5	VANGUARD CAPITAL MANAGEMENT LLC	2,690,4692.7M	$122M	4.30%	NEW†
6	ADAGE CAPITAL PARTNERS GP, L.L.C.	2,463,4362.5M	$112M	3.94%	TRIM -29%
7	Goehring & Rozencwajg Associates, LLC	2,449,5652.4M	$111M	3.92%	ADD 28%
8	Patient Capital Management, LLC	2,152,6852.2M	$98M	3.44%	ADD 5%
9	BNP PARIBAS FINANCIAL MARKETS	2,104,7542.1M	$96M	3.37%	ADD 26%
10	STATE STREET CORP	1,805,2321.8M	$82M	2.89%	ADD 6%
11	CITADEL ADVISORS LLC	1,679,2461.7M	$76M	2.69%	ADD 31%
12	GEODE CAPITAL MANAGEMENT, LLC	1,452,2451.5M	$66M	2.32%	ADD 3%
13	AMERICAN CENTURY COMPANIES INC	1,430,7431.4M	$65M	2.29%	ADD 18%
14	Condire Management, LP	1,279,9681.3M	$58M	2.05%	—
15	CANYON CAPITAL ADVISORS LLC	1,261,7791.3M	$57M	2.02%	TRIM -66%
16	FMR LLC	1,176,5521.2M	$54M	1.88%	ADD 14%
17	WELLINGTON MANAGEMENT GROUP LLP	991,549991,549	$45M	1.59%	TRIM -15%
18	GOLDMAN SACHS GROUP INC	956,495956,495	$44M	1.53%	TRIM -16%
19	BARCLAYS PLC	951,105951,105	$43M	1.52%	ADD 35%
20	Webs Creek Capital Management LP	896,939896,939	$41M	1.43%	ADD 2%
21	Merewether Investment Management, LP	867,338867,338	$39M	1.39%	NEW
22	Sagefield Capital LP	831,355831,355	$38M	1.33%	TRIM -10%
23	Qube Research & Technologies Ltd	822,881822,881	$37M	1.32%	ADD 102%
24	Hosking Partners LLP	782,944782,944	$36M	1.25%	ADD 10%
25	VANGUARD PORTFOLIO MANAGEMENT LLC	776,988776,988	$35M	1.24%	NEW
26	ALLIANCEBERNSTEIN L.P.	1,007,8191.0M	$35M	1.61%	—
27	MORGAN STANLEY	718,762718,762	$33M	1.15%	ADD 13%
28	DNB Asset Management AS	620,783620,783	$28M	0.99%	TRIM -28%
29	Packer & Co Ltd	613,080613,080	$28M	0.98%	ADD 148%
30	T. Rowe Price Investment Management, Inc.	547,475547,475	$25M	0.88%	TRIM -28%
31	NORTHERN TRUST CORP	544,278544,278	$25M	0.87%	ADD 4%
32	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	513,099513,099	$23M	0.82%	—
33	ING GROEP NV	434,513434,513	$20M	0.69%	—
34	SYSTEMATIC FINANCIAL MANAGEMENT LP	422,369422,369	$19M	0.68%	TRIM -2%
35	VANGUARD FIDUCIARY TRUST CO	411,821411,821	$19M	0.66%	NEW
36	BANK OF AMERICA CORP /DE/	387,160387,160	$18M	0.62%	TRIM -41%
37	AQR CAPITAL MANAGEMENT LLC	383,736383,736	$17M	0.61%	—
38	Man Group plc	382,953382,953	$17M	0.61%	ADD 80%
39	BRIDGEWAY CAPITAL MANAGEMENT, LLC	374,079374,079	$17M	0.60%	TRIM -10%
40	Squarepoint Ops LLC	352,600352,600	$16M	0.56%	—
41	HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND	342,645342,645	$16M	0.55%	ADD 4%
42	Contrarius Group Holdings Ltd	318,958318,958	$15M	0.51%	ADD 29%
43	SIR Capital Management, L.P.	301,799301,799	$14M	0.48%	ADD 96%
44	Empowered Funds, LLC	265,749265,749	$12M	0.42%	TRIM -7%
45	DEUTSCHE BANK AG\	256,423256,423	$12M	0.41%	ADD 2%
46	683 Capital Management, LLC	250,000250,000	$11M	0.40%	ADD 25%
47	Monaco Asset Management SAM	219,671219,671	$10M	0.35%	TRIM -15%
48	THOMPSON SIEGEL & WALMSLEY LLC	215,484215,484	$10M	0.34%	TRIM -29%
49	Balyasny Asset Management L.P.	203,778203,778	$9M	0.33%	NEW
50	Oceanic Investment Management LTD	187,850187,850	$9M	0.30%	ADD 79%
51	Bank of New York Mellon Corp	181,147181,147	$8M	0.29%	TRIM -3%
52	Nuveen, LLC	170,178170,178	$8M	0.27%	ADD 14%
53	CITIGROUP INC	162,855162,855	$7M	0.26%	ADD 380%
54	Foresight Global Investors, Inc.	161,105161,105	$7M	0.26%	TRIM -34%
55	FRANKLIN RESOURCES INC	162,424162,424	$7M	0.26%	NEW
56	Edgestream Partners, L.P.	158,279158,279	$7M	0.25%	ADD 64%
57	Jump Financial, LLC	145,555145,555	$7M	0.23%	NEW
58	Creative Planning	141,066141,066	$6M	0.23%	ADD 7%
59	Azarias Capital Management, L.P.	136,645136,645	$6M	0.22%	NEW
60	ROBOTTI ROBERT	131,860131,860	$6M	0.21%	ADD 597%
61	MILLENNIUM MANAGEMENT LLC	130,146130,146	$6M	0.21%	TRIM -59%
62	NEUBERGER BERMAN GROUP LLC	128,085128,085	$6M	0.20%	—
63	HRT FINANCIAL LP	123,465123,465	$6M	0.20%	ADD 143%
64	JPMORGAN CHASE & CO	119,860119,860	$5M	0.19%	TRIM -16%
65	Swiss National Bank	117,200117,200	$5M	0.19%	—
66	FIL Ltd	113,262113,262	$5M	0.18%	NEW
67	Hartree Partners, LP	107,300107,300	$5M	0.17%	NEW
68	Walleye Capital LLC	104,524104,524	$5M	0.17%	TRIM -89%
69	SG Americas Securities, LLC	101,474101,474	$5M	0.16%	ADD 726%
70	LONESTAR CAPITAL MANAGEMENT LLC	100,000100,000	$5M	0.16%	TRIM -50%
71	FIRST TRUST ADVISORS LP	99,31599,315	$5M	0.16%	TRIM -24%
72	Assenagon Asset Management S.A.	98,79698,796	$4M	0.16%	—
73	Pinpoint Asset Management (Singapore) Pte. Ltd.	97,79797,797	$4M	0.16%	ADD 239%
74	FEDERATED HERMES, INC.	93,47693,476	$4M	0.15%	ADD 2%
75	Glenorchy Capital Ltd	81,47781,477	$4M	0.13%	NEW
76	RHUMBLINE ADVISERS	81,32281,322	$4M	0.13%	—
77	Atom Investors LP	74,89674,896	$3M	0.12%	ADD 25%
78	Russell Investments Group, Ltd.	74,73574,735	$3M	0.12%	TRIM -4%
79	CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	72,90972,909	$3M	0.12%	ADD 26%
80	Hara Capital LLC	72,67472,674	$3M	0.12%	ADD 42%
81	Quantinno Capital Management LP	71,91671,916	$3M	0.12%	ADD 92%
82	RAYMOND JAMES FINANCIAL INC	70,00070,000	$3M	0.11%	ADD 10%
83	PRICE T ROWE ASSOCIATES INC /MD/	69,36669,366	$3M	0.11%	ADD 30%
84	DYMON ASIA CAPITAL (SINGAPORE) PTE. LTD.	66,30066,300	$3M	0.11%	NEW
85	NEW YORK STATE COMMON RETIREMENT FUND	64,66464,664	$3M	0.10%	TRIM -21%
86	BOOTHBAY FUND MANAGEMENT, LLC	63,82763,827	$3M	0.10%	ADD 80%
87	Tejara Capital Ltd	56,31956,319	$3M	0.09%	TRIM -85%
88	LMR Partners LLP	55,36355,363	$3M	0.09%	NEW
89	Orvieto Partners, L.P.	55,00055,000	$3M	0.09%	TRIM -45%
90	XTX Topco Ltd	53,97753,977	$2M	0.09%	NEW
91	Mountain Lake Investment Management LLC	51,81251,812	$2M	0.08%	TRIM -59%
92	State of New Jersey Common Pension Fund D	50,30050,300	$2M	0.08%	TRIM -27%
93	D. E. Shaw & Co., Inc.	49,13949,139	$2M	0.08%	TRIM -19%
94	Invesco Ltd.	47,22547,225	$2M	0.08%	TRIM -48%
95	First Eagle Investment Management, LLC	47,00047,000	$2M	0.08%	TRIM -2%
96	VANGUARD ASSET MANAGEMENT, Ltd	44,97344,973	$2M	0.07%	NEW
97	SUSQUEHANNA INTERNATIONAL GROUP, LLP	42,79842,798	$2M	0.07%	ADD 524%
98	MILFAM LLC	40,00040,000	$2M	0.06%	NEW
99	IEQ CAPITAL, LLC	39,64639,646	$2M	0.06%	TRIM -41%
100	Legal & General Group Plc	39,17339,173	$2M	0.06%	TRIM -15%

† a filer this large appearing as NEW usually reflects a renamed or succeeded filing entity (the old name stops filing the same quarter) — not a brand-new position.

Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.

Holder trends· top 15 holders · shares held over 6 quarters

green added · red trimmed

Holder

2024-Q4

2025-Q1

2025-Q2

2025-Q3

2025-Q4

2026-Q1

Latest value

BlackRock, Inc.

3.8M

3.7M

4.9M

5.0M

4.9M

$225M

Elliott Investment Management L.P.

3.7M

4.6M

4.7M

$215M

UBS Group AG

2.3M

4.1M

3.7M

3.1M

3.0M

3.8M

$173M

DIMENSIONAL FUND ADVISORS LP

3.5M

3.4M

3.3M

3.2M

3.6M

$162M

VANGUARD CAPITAL MANAGEMENT LLC

—

2.7M

$122M

ADAGE CAPITAL PARTNERS GP, L.L.C.

3.4M

4.2M

3.1M

3.5M

2.5M

$112M

Goehring & Rozencwajg Associates, LLC

476K

1.2M

1.7M

1.9M

2.4M

$111M

Patient Capital Management, LLC

1.7M

2.0M

2.2M

2.1M

2.2M

$98M

BNP PARIBAS FINANCIAL MARKETS

1.7M

2.1M

$96M

STATE STREET CORP

1.2M

1.1M

1.4M

1.7M

1.8M

$82M

CITADEL ADVISORS LLC

—

68K

—

68K

1.3M

1.7M

$76M

GEODE CAPITAL MANAGEMENT, LLC

833K

802K

1.4M

1.5M

$66M

AMERICAN CENTURY COMPANIES INC

232K

456K

538K

884K

1.2M

1.4M

$65M

Condire Management, LP

3.0M

3.1M

1.3M

$58M

CANYON CAPITAL ADVISORS LLC

4.9M

4.2M

3.7M

1.3M

$57M

Institutional footprint by quarter

Line breaks are honest gaps — quarters with no 13F record, or a suppressed % — never interpolated. % of shares outstanding uses today's share count for every quarter (the only count stored).

Quarter	Holders	Shares held	% shares out	Value held
2026-Q1	244	62,984,053	100.7%	$2.9B
2025-Q4	202	65,376,984	104.6%	$2.3B

Short interest has its own tab now — open SI →

Activists & large holders· Schedule 13D/G beneficial owners · SDRL

Activists — 13D, active intent

Elliott Investment Management L.P.6.8%NEWSCHEDULE 13D/A · Amd 7 · event 2025-12-16SEC →

4,213,146 shares

Large holders — 13G, passive (top 5 of 7 by % of class)

Holder	% of class	Type	As of
BlackRock, Inc.	7.3%	QII	2025-06-30	SEC →
DIMENSIONAL FUND ADVISORS LP	5.4%	QII	2024-12-31	SEC →
VANGUARD CAPITAL MANAGEMENT LLC	5.04%	QII	2026-03-31	SEC →

SDRL US Equity☆

Institutional ownership· 13F filers holding SDRL · 2026-Q1 methodology → sources →

Top holders

Holder trends· top 15 holders · shares held over 6 quarters

Institutional footprint by quarter

Activists & large holders· Schedule 13D/G beneficial owners · SDRL

Institutional ownership· 13F filers holding SDRL · 2026-Q1 methodology → sources →

Top holders

Holder trends· top 15 holders · shares held over 6 quarters

Institutional footprint by quarter

Activists & large holders· Schedule 13D/G beneficial owners · SDRL

SDRL US Equity