SDRL Institutional Ownership & Shareholders
SEADRILL 2021 LTD (SDRL) is currently held by 237 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $2.28B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of SDRL tracked by InsiderSet, reporting ownership valued at approximately $207.50M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $288.43M, representing an estimated gain of +39.00% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 48% of the total disclosed SDRL value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Elliott Investment Management L.P., Dimensional Fund Advisors Lp, and several other long-term asset managers with concentrated positions in SEADRILL 2021 LTD (SDRL).
This page ranks the largest institutional SDRL shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
237
Total Reported Value
$2.28B
Largest Holder
Blackrock, Inc.
Largest Position
$207.50M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
64
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 5,486,503 | $207,499,540 | $288,425,463 | +$80,925,923 | +39.00% | |
| Elliott Investment Management L.P. | 1.17% | 4,439,681 | $167,908,735 | $233,394,030 | +$65,485,295 | +39.00% | |
| Dimensional Fund Advisors Lp | 0.02% | 3,634,460 | $137,459,645 | $191,063,562 | +$53,603,917 | +39.00% | |
| Vanguard Capital Management Llc | 0.00% | 2,718,823 | $102,825,886 | $142,928,525 | +$40,102,639 | +39.00% | |
| Goehring & Rozencwajg Associates, Llc | 5.74% | 2,636,666 | $99,718,708 | $138,609,532 | +$38,890,824 | +39.00% | |
| Ubs Group Ag | 0.01% | 2,349,307 | $88,850,790 | $123,503,069 | +$34,652,279 | +39.00% | |
| Bnp Paribas Financial Markets | 0.04% | 2,175,551 | $82,279,339 | $114,368,716 | +$32,089,377 | +39.00% | |
| Patient Capital Management, Llc | 2.45% | 1,953,355 | $73,875,926 | $102,687,872 | +$28,811,946 | +39.00% | |
| State Street Corp | 0.00% | 1,871,511 | $70,780,546 | $98,385,333 | +$27,604,787 | +39.00% | |
| Geode Capital Management, Llc | 0.00% | 1,812,603 | $68,565,333 | $95,288,540 | +$26,723,207 | +38.97% | |
| American Century Companies Inc | 0.02% | 1,455,718 | $55,055,255 | $76,527,095 | +$21,471,840 | +39.00% | |
| Adage Capital Partners Gp, L.L.C. | 0.07% | 1,383,436 | $52,321,550 | $72,727,231 | +$20,405,681 | +39.00% | |
| Fil Ltd | 0.04% | 1,372,132 | $51,894,032 | $72,132,979 | +$20,238,947 | +39.00% | |
| Webs Creek Capital Management Lp | 9.35% | 1,305,349 | $49,368,299 | $68,622,197 | +$19,253,898 | +39.00% | |
| Alliancebernstein L.P. | 0.02% | 997,717 | $45,396,124 | $52,449,983 | +$7,053,859 | +15.54% | |
| Fmr Llc | 0.00% | 1,151,394 | $43,545,710 | $60,528,783 | +$16,983,073 | +39.00% | |
| Barclays Plc | 0.01% | 1,021,633 | $38,638,160 | $53,707,247 | +$15,069,087 | +39.00% | |
| Qube Research & Technologies Ltd | 0.04% | 1,004,030 | $37,972,415 | $52,781,857 | +$14,809,442 | +39.00% | |
| Merewether Investment Management, Lp | 0.63% | 886,747 | $33,536,772 | $46,616,290 | +$13,079,518 | +39.00% | |
| Vanguard Portfolio Management Llc | 0.00% | 859,287 | $32,498,234 | $45,172,718 | +$12,674,484 | +39.00% | |
| Sagefield Capital Lp | 2.40% | 856,540 | $32,394,343 | $45,028,308 | +$12,633,965 | +39.00% | |
| Hosking Partners Llp | 1.08% | 677,637 | $30,270,045 | $35,623,377 | +$5,353,332 | +17.69% | |
| Goldman Sachs Group Inc | 0.00% | 793,161 | $29,997,349 | $41,696,474 | +$11,699,125 | +39.00% | |
| Wellington Management Group Llp | 0.01% | 791,842 | $29,947,464 | $41,627,134 | +$11,679,670 | +39.00% | |
| Greenlight Capital | David Einhorn | 1.26% | 543,935 | $25,717,246 | $28,594,663 | +$2,877,417 | +11.19% |
| Morgan Stanley | 0.00% | 595,668 | $22,528,212 | $31,314,267 | +$8,786,055 | +39.00% | |
| Nuveen, Llc | 0.01% | 592,920 | $22,424,234 | $31,169,804 | +$8,745,570 | +39.00% | |
| Northern Trust Corp | 0.00% | 566,353 | $21,419,470 | $29,773,177 | +$8,353,707 | +39.00% | |
| T. Rowe Price Investment Management, Inc. | 0.01% | 549,511 | $20,783,000 | $28,887,793 | +$8,104,793 | +39.00% | |
| Charles Schwab Investment Management Inc | 0.00% | 522,945 | $19,777,780 | $27,491,219 | +$7,713,439 | +39.00% | |
| Bank Of America Corp | 0.00% | 512,753 | $19,392,319 | $26,955,425 | +$7,563,106 | +39.00% | |
| Aqr Capital Management Llc | 0.01% | 508,873 | $19,245,572 | $26,751,454 | +$7,505,882 | +39.00% | |
| Ing Groep Nv | 0.08% | 434,513 | $16,433,282 | $22,842,348 | +$6,409,066 | +39.00% | |
| Vanguard Fiduciary Trust Co | 0.00% | 413,644 | $15,644,016 | $21,745,265 | +$6,101,249 | +39.00% | |
| Systematic Financial Management Lp | 0.30% | 394,636 | $14,925,192 | $20,746,015 | +$5,820,823 | +39.00% | |
| Healthcare Of Ontario Pension Plan Trust Fund | 0.02% | 391,152 | $14,793,369 | $20,562,861 | +$5,769,492 | +39.00% | |
| Dnb Asset Management As | 0.04% | 390,702 | $14,776,350 | $20,539,204 | +$5,762,854 | +39.00% | |
| Man Group Plc | 0.03% | 386,929 | $14,633,654 | $20,340,858 | +$5,707,204 | +39.00% | |
| Squarepoint Ops Llc | 0.03% | 382,188 | $14,454,350 | $20,091,623 | +$5,637,273 | +39.00% | |
| Canyon Capital Advisors Llc | 1.43% | 332,630 | $12,580,067 | $17,486,359 | +$4,906,292 | +39.00% | |
| Hrt Financial Lp | 0.02% | 268,792 | $10,165,000 | $14,130,395 | +$3,965,395 | +39.01% | |
| Deutsche Bank Ag\ | 0.00% | 267,222 | $10,106,336 | $14,047,861 | +$3,941,525 | +39.00% | |
| Sir Capital Management, L.P. | 1.13% | 260,971 | $9,869,923 | $13,719,245 | +$3,849,322 | +39.00% | |
| Sg Americas Securities, Llc | 0.01% | 240,915 | $9,111,000 | $12,664,902 | +$3,553,902 | +39.01% | |
| 683 Capital Management, Llc | 0.83% | 240,000 | $9,076,800 | $12,616,800 | +$3,540,000 | +39.00% | |
| Monaco Asset Management Sam | 3.37% | 239,671 | $9,064,357 | $12,599,504 | +$3,535,147 | +39.00% | |
| Dymon Asia Capital (Singapore) Pte. Ltd. | 1.35% | 222,300 | $8,407,386 | $11,686,311 | +$3,278,925 | +39.00% | |
| Citadel Advisors Llc | 0.00% | 220,719 | $8,347,592 | $11,603,198 | +$3,255,606 | +39.00% | |
| Jpmorgan Chase & Co | 0.00% | 213,055 | $8,344,862 | $11,200,301 | +$2,855,439 | +34.22% | |
| Jane Street Group, Llc | 0.01% | 210,177 | $7,948,895 | $11,049,005 | +$3,100,110 | +39.00% |
Frequently asked questions about SDRL
Who are the largest institutional holders of SDRL?
The largest institutional holders of SDRL reported in the latest SEC Form 13F filings include Blackrock, Inc., Elliott Investment Management L.P., Dimensional Fund Advisors Lp, Vanguard Capital Management Llc, and Goehring & Rozencwajg Associates, Llc. InsiderSet ranks institutional holders by their latest reported SDRL position.
What is SDRL institutional ownership?
This page tracks SDRL positions reported by institutional investment managers through SEC Form 13F. SEADRILL 2021 LTD (SDRL) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own SDRL?
InsiderSet currently tracks 237 institutional managers reporting SDRL holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of SDRL shareholders.
How much SDRL stock do institutions own?
Institutional investment managers disclosed approximately $2.28B in SDRL holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was SDRL institutional ownership last updated?
The latest SDRL institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional SDRL holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its SDRL position after the reporting date.
Are institutions buying or selling SDRL?
Institutional buying and selling can be analyzed by comparing SDRL positions across consecutive 13F reporting periods. InsiderSet's SDRL Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View SDRL ownership changes.
How has SDRL institutional ownership changed over time?
InsiderSet tracks SDRL institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.