SEADRILL 2021 LTD (SDRL) Institutional Shareholders
SEADRILL 2021 LTD (SDRL) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $2.27B in SDRL holdings during the latest filing period.
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 $262.47M, representing an estimated gain of +26.49% 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
229
Total Reported Value
$2.27B
Largest Holder
Blackrock, Inc.
Largest Position
$207.50M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
73
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 | $262,474,304 | +$54,974,764 | +26.49% | |
| Elliott Investment Management L.P. | 1.17% | 4,439,681 | $167,908,735 | $212,394,339 | +$44,485,604 | +26.49% | |
| Dimensional Fund Advisors Lp | 0.02% | 3,634,460 | $137,459,645 | $173,872,566 | +$36,412,921 | +26.49% | |
| Vanguard Capital Management Llc | 0.00% | 2,718,823 | $102,825,886 | $130,068,492 | +$27,242,606 | +26.49% | |
| Goehring & Rozencwajg Associates, Llc | 5.74% | 2,636,666 | $99,718,708 | $126,138,101 | +$26,419,393 | +26.49% | |
| Ubs Group Ag | 0.01% | 2,349,307 | $88,850,790 | $112,390,847 | +$23,540,057 | +26.49% | |
| Bnp Paribas Financial Markets | 0.04% | 2,175,551 | $82,279,339 | $104,078,360 | +$21,799,021 | +26.49% | |
| Patient Capital Management, Llc | 2.45% | 1,953,355 | $73,875,926 | $93,448,503 | +$19,572,577 | +26.49% | |
| State Street Corp | 0.00% | 1,871,511 | $70,780,546 | $89,533,086 | +$18,752,540 | +26.49% | |
| Geode Capital Management, Llc | 0.00% | 1,812,603 | $68,565,333 | $86,714,928 | +$18,149,595 | +26.47% | |
| American Century Companies Inc | 0.02% | 1,455,718 | $55,055,255 | $69,641,549 | +$14,586,294 | +26.49% | |
| Adage Capital Partners Gp, L.L.C. | 0.07% | 1,383,436 | $52,321,550 | $66,183,578 | +$13,862,028 | +26.49% | |
| Fil Ltd | 0.04% | 1,372,132 | $51,894,032 | $65,642,795 | +$13,748,763 | +26.49% | |
| Webs Creek Capital Management Lp | 9.35% | 1,305,349 | $49,368,299 | $62,447,896 | +$13,079,597 | +26.49% | |
| Alliancebernstein L.P. | 0.02% | 997,717 | $45,396,124 | $47,730,781 | +$2,334,657 | +5.14% | |
| Fmr Llc | 0.00% | 1,151,394 | $43,545,710 | $55,082,689 | +$11,536,979 | +26.49% | |
| Barclays Plc | 0.01% | 1,021,633 | $38,638,160 | $48,874,923 | +$10,236,763 | +26.49% | |
| Qube Research & Technologies Ltd | 0.04% | 1,004,030 | $37,972,415 | $48,032,795 | +$10,060,380 | +26.49% | |
| Merewether Investment Management, Lp | 0.63% | 886,747 | $33,536,772 | $42,421,976 | +$8,885,204 | +26.49% | |
| Vanguard Portfolio Management Llc | 0.00% | 859,287 | $32,498,234 | $41,108,290 | +$8,610,056 | +26.49% | |
| Sagefield Capital Lp | 2.40% | 856,540 | $32,394,343 | $40,976,874 | +$8,582,531 | +26.49% | |
| Goldman Sachs Group Inc | 0.00% | 793,161 | $29,997,349 | $37,944,822 | +$7,947,473 | +26.49% | |
| Wellington Management Group Llp | 0.01% | 791,842 | $29,947,464 | $37,881,721 | +$7,934,257 | +26.49% | |
| Hosking Partners Llp | 0.89% | 704,515 | $26,644,757 | $33,703,998 | +$7,059,241 | +26.49% | |
| Greenlight Capital | David Einhorn | 1.26% | 543,935 | $25,717,246 | $26,021,850 | +$304,604 | +1.18% |
| Morgan Stanley | 0.00% | 595,668 | $22,528,212 | $28,496,757 | +$5,968,545 | +26.49% | |
| Nuveen, Llc | 0.01% | 592,920 | $22,424,234 | $28,365,293 | +$5,941,059 | +26.49% | |
| Northern Trust Corp | 0.00% | 566,353 | $21,419,470 | $27,094,328 | +$5,674,858 | +26.49% | |
| T. Rowe Price Investment Management, Inc. | 0.01% | 549,511 | $20,783,000 | $26,288,606 | +$5,505,606 | +26.49% | |
| Charles Schwab Investment Management Inc | 0.00% | 522,945 | $19,777,780 | $25,017,689 | +$5,239,909 | +26.49% | |
| Bank Of America Corp | 0.00% | 512,753 | $19,392,319 | $24,530,104 | +$5,137,785 | +26.49% | |
| Aqr Capital Management Llc | 0.01% | 508,873 | $19,245,572 | $24,344,484 | +$5,098,912 | +26.49% | |
| Ing Groep Nv | 0.08% | 434,513 | $16,433,282 | $20,787,102 | +$4,353,820 | +26.49% | |
| Vanguard Fiduciary Trust Co | 0.00% | 413,644 | $15,644,016 | $19,788,729 | +$4,144,713 | +26.49% | |
| Systematic Financial Management Lp | 0.30% | 394,636 | $14,925,192 | $18,879,386 | +$3,954,194 | +26.49% | |
| Healthcare Of Ontario Pension Plan Trust Fund | 0.02% | 391,152 | $14,793,369 | $18,712,712 | +$3,919,343 | +26.49% | |
| Dnb Asset Management As | 0.04% | 390,702 | $14,776,350 | $18,691,184 | +$3,914,834 | +26.49% | |
| Man Group Plc | 0.03% | 386,929 | $14,633,654 | $18,510,683 | +$3,877,029 | +26.49% | |
| Squarepoint Ops Llc | 0.03% | 382,188 | $14,454,350 | $18,283,874 | +$3,829,524 | +26.49% | |
| Canyon Capital Advisors Llc | 1.43% | 332,630 | $12,580,067 | $15,913,019 | +$3,332,952 | +26.49% | |
| Hrt Financial Lp | 0.02% | 268,792 | $10,165,000 | $12,859,009 | +$2,694,009 | +26.50% | |
| Deutsche Bank Ag\ | 0.00% | 267,222 | $10,106,336 | $12,783,900 | +$2,677,564 | +26.49% | |
| Sir Capital Management, L.P. | 1.13% | 260,971 | $9,869,923 | $12,484,853 | +$2,614,930 | +26.49% | |
| Sg Americas Securities, Llc | 0.01% | 240,915 | $9,111,000 | $11,525,374 | +$2,414,374 | +26.50% | |
| 683 Capital Management, Llc | 0.83% | 240,000 | $9,076,800 | $11,481,600 | +$2,404,800 | +26.49% | |
| Monaco Asset Management Sam | 3.37% | 239,671 | $9,064,357 | $11,465,861 | +$2,401,504 | +26.49% | |
| Dymon Asia Capital (Singapore) Pte. Ltd. | 1.35% | 222,300 | $8,407,386 | $10,634,832 | +$2,227,446 | +26.49% | |
| Citadel Advisors Llc | 0.00% | 220,719 | $8,347,592 | $10,559,197 | +$2,211,605 | +26.49% | |
| Jpmorgan Chase & Co | 0.00% | 213,055 | $8,344,862 | $10,192,551 | +$1,847,689 | +22.14% | |
| Azarias Capital Management, L.P. | 3.48% | 211,301 | $7,991,404 | $10,108,640 | +$2,117,236 | +26.49% |
Frequently asked questions about SDRL
Who owns the most SDRL stock?
The largest holders of SDRL are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for SEADRILL 2021 LTD (SDRL).
Is SDRL widely held by superinvestors?
Many widely followed stocks like SDRL appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly SDRL is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.