Comparable stake leader
BERKSHIRE HATHAWAY INC
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000927066.
Comparable stake leader
BERKSHIRE HATHAWAY INC
Disclosed value leader
BERKSHIRE HATHAWAY INC
Comparable rows
50/50
Latest evidence
15 Aug 2026
Ownership snapshot
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Quick read
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BERKSHIRE HATHAWAY INC |
13F
13D/G
3/4/5
Company · Warren E. Buffett · 10%+ Owner
|
45%
from 13D/G
|
$6,425,268,898
28,880,209 shares
|
— | 30 Jun 2026 |
| BlackRock, Inc. |
13D/G
13F
Company
|
5%
|
$557,404,175
3,994,011 shares
|
$0 | 31 Mar 2025 |
| Warren E. Buffett |
3/4/5
10%+ Owner
|
40%
|
$5,726,474,652
28,697,229 shares
|
-$219,377,972 | 31 Jul 2026 |
| Pamela M. Arway |
3/4/5
Director
|
0.04%
|
$6,056,573
27,223 shares
|
— | 15 Aug 2026 |
| Charles Berg |
3/4/5
Director
|
0.04%
|
$3,772,166
27,029 shares
|
— | 15 May 2025 |
| Hearty James O |
3/4/5
Chief Compliance Officer
|
0.03%
|
$4,343,085
22,389 shares
|
-$3,291,661 | 14 May 2026 |
| Christopher Michael Berry |
3/4/5
Chief Accounting Officer
|
0.03%
|
$2,833,462
19,640 shares
|
— | 15 Mar 2026 |
| Barbara J. Desoer |
3/4/5
Director
|
0.02%
|
$3,181,241
14,299 shares
|
— | 15 Aug 2026 |
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Net insider flow leans to selling over the last 12 months. Net value: -$728,054,490.
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 365,960 | $0 | $73,026,586 | -$73,026,586 |
| 3-6 | 0 | 2,614,748 | $0 | $400,740,774 | -$400,740,774 |
| 6-9 | 0 | 1,658,480 | $0 | $199,939,881 | -$199,939,881 |
| 9-12 | 0 | 401,514 | $0 | $54,347,249 | -$54,347,249 |
Reporting owners
Showing 1-20 of 23 reporting-owner rows connected to DAVITA INC.. Open a relationship link for the CIK-to-CIK filing trail.
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| BERKSHIRE HATHAWAY INC | 10%+ Owner | $5,726,474,652 | -$473,665,101 | -7.6% | Filing P/S | 31 Jul 2026 |
| Warren E. Buffett | 10%+ Owner | $5,726,474,652 | -$219,377,972 | -3.7% | Filing P/S | 31 Jul 2026 |
| Javier Rodriguez | Chief Executive Officer, Director | $175,878,905 | -$14,532,108 | -7.6% | Filing P/S | 15 Jun 2026 |
| Michael David Staffieri | Chief Operating Officer, DKC | $31,439,337 | Filing P/S | 15 Aug 2024 | ||
| Joel Ackerman | CFO and Treasurer | $25,440,438 | -$9,887,528 | -28% | Filing P/S | 07 May 2026 |
| Kathleen Alyce Waters | Chief Legal & Pub. Affairs Off | $22,839,781 | -$3,210,377 | -12% | Filing P/S | 15 Jun 2026 |
| David Paul Maughan | Chief Operating Officer, DKC | $19,267,657 | -$4,089,743 | -18% | Median | 22 Sep 2026 |
| John M. Nehra | Director | $10,913,520 | Mixed | 15 May 2024 | ||
| Pamela M. Arway | Director | $6,056,573 | Median | 15 Aug 2026 | ||
| Hearty James O | Chief Compliance Officer | $4,343,085 | -$3,291,661 | -43% | Filing P/S | 14 May 2026 |
| Charles Berg | Director | $3,772,166 | Mixed | 15 May 2025 | ||
| Barbara J. Desoer | Director | $3,181,241 | Median | 15 Aug 2026 | ||
| Christopher Michael Berry | Chief Accounting Officer | $2,833,462 | Mixed | 15 Mar 2026 | ||
| Phyllis R. Yale | Director | $2,180,971 | Median | 15 Aug 2026 | ||
| Gregory J. Moore | Director | $1,800,085 | Median | 15 Aug 2026 | ||
| Paul J. Diaz | Director | $1,748,307 | Mixed | 15 May 2023 | ||
| John D. Winstel | Chief Accounting Officer | $1,705,549 | Mixed | 15 Nov 2022 | ||
| Jason M. Hollar | Director | $1,531,329 | Median | 15 Aug 2026 | ||
| Adam H. Schechter | Director | $1,328,205 | Median | 15 Aug 2026 | ||
| Wendy Lee Schoppert | Director | $926,628 | Median | 15 Aug 2026 |
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| David Paul Maughan | DVA | Common Stock | Tax liability | -7.97% | -7,501 | 86,604 | 22 Sep 2026 | Direct | ||
| Jason M. Hollar | DVA | Common Stock | Award | 4.21% | 278 | 6,883 | 15 Aug 2026 | Direct | ||
| Barbara J. Desoer | DVA | Common Stock | Award | 278 | 278 | 15 Aug 2026 | Direct | |||
| Adam H. Schechter | DVA | Common Stock | Award | 4.88% | 278 | 5,970 | 15 Aug 2026 | Direct | ||
| Gregory J. Moore | DVA | Common Stock | Award | 3.56% | 278 | 8,091 | 15 Aug 2026 | Direct | ||
| Dennis W. Pullin | DVA | Common Stock | Award | 10.4% | 278 | 2,949 | 15 Aug 2026 | Direct | ||
| Wendy Lee Schoppert | DVA | Common Stock | Award | 278 | 278 | 15 Aug 2026 | Direct | |||
| Pamela M. Arway | DVA | Common Stock | Award | 1.03% | 278 | 27,223 | 15 Aug 2026 | Direct | ||
| Phyllis R. Yale | DVA | Common Stock | Award | 2.92% | 278 | 9,803 | 15 Aug 2026 | Direct | ||
| BERKSHIRE HATHAWAY INC | DVA | Common Stock | Sale | -0.63% | $36,513,293 | $199.55 | -182,980 | 28,697,229 | 31 Jul 2026 | See footnotes |
| Berkshire Hathaway Inc | DVA | Common Stock | Sale | -0.63% | $36,513,293 | $199.55 | -182,980 | 28,697,229 | 31 Jul 2026 | See footnotes |
| Javier Rodriguez | DVA | Common Stock | Sale | -4.48% | $8,247,018 | $209.28 | -39,407 | 840,408 | 16 Jun 2026 | Direct |
| Kathleen Alyce Waters | DVA | Common Stock | Sale | -12.4% | $3,210,377 | $208.40 | -15,405 | 109,194 | 15 Jun 2026 | Direct |
| Javier Rodriguez | DVA | Common Stock | Sale | -3.3% | $6,285,090 | $209.50 | -30,000 | 879,815 | 15 Jun 2026 | Direct |
| Phyllis R. Yale | DVA | Common Stock | Gift | -34.6% | -5,038 | 9,525 | 26 May 2026 | Direct | ||
| Dennis W. Pullin | DVA | Common Stock | Award | 10.3% | 250 | 2,671 | 15 May 2026 | Direct | ||
| Gregory J. Moore | DVA | Common Stock | Award | 3.31% | 250 | 7,813 | 15 May 2026 | Direct | ||
| Wendy Lee Schoppert | DVA | Common Stock | Award | 250 | 250 | 15 May 2026 | Direct | |||
| Pamela M. Arway | DVA | Common Stock | Award | 0.94% | 250 | 26,945 | 15 May 2026 | Direct | ||
| Phyllis R. Yale | DVA | Common Stock | Award | 1.75% | 250 | 14,563 | 15 May 2026 | Direct | ||
| Barbara J. Desoer | DVA | Common Stock | Award | 250 | 250 | 15 May 2026 | Direct | |||
| Adam H. Schechter | DVA | Common Stock | Award | 4.59% | 250 | 5,692 | 15 May 2026 | Direct | ||
| Jason M. Hollar | DVA | Common Stock | Award | 3.93% | 250 | 6,605 | 15 May 2026 | Direct | ||
| Hearty James O | DVA | Common Stock | Sale | -40.1% | $2,909,745 | $193.98 | -15,000 | 22,389 | 15 May 2026 | Direct |
| Hearty James O | DVA | Common Stock | Tax liability | -2.9% | -1,117 | 37,389 | 14 May 2026 | Direct | ||
| Hearty James O | DVA | Common Stock | Disposed to Issuer | -7.74% | -3,231 | 38,506 | 14 May 2026 | Direct | ||
| Hearty James O | DVA | Common Stock | Options Exercise | 16.1% | 5,784 | 41,737 | 14 May 2026 | Direct | ||
| Hearty James O | DVA | Stock Appreciation Rights | Options Exercise | -100% | -5,784 | 0 | 14 May 2026 | Direct | ||
| David Paul Maughan | DVA | Common Stock | Sale | -12.5% | $2,681,162 | $199.25 | -13,456 | 94,105 | 12 May 2026 | Direct |
| David Paul Maughan | DVA | Common Stock | Sale | -6.17% | $1,408,581 | $199.15 | -7,073 | 107,561 | 11 May 2026 | Direct |
| Joel Ackerman | DVA | Common Stock | Sale | -28% | $9,887,528 | $192.10 | -51,471 | 132,434 | 07 May 2026 | Direct |
| Hearty James O | DVA | Common Stock | Sale | -5.73% | $381,916 | $174.87 | -2,184 | 35,953 | 06 May 2026 | Direct |
| BERKSHIRE HATHAWAY INC | DVA | Common Stock | Sale | -4.05% | $182,864,679 | $149.84 | -1,220,376 | 28,880,209 | 01 May 2026 | See footnotes |
| Berkshire Hathaway Inc | DVA | Common Stock | Sale | -4.05% | $182,864,679 | $149.84 | -1,220,376 | 28,880,209 | 01 May 2026 | See footnotes |
| Pamela M. Arway | DVA | Common Stock | Award | 1.26% | 332 | 26,695 | 15 Mar 2026 | Direct | ||
| Barbara J. Desoer | DVA | Common Stock | Award | 332 | 332 | 15 Mar 2026 | Direct | |||
| David Paul Maughan | DVA | Common Stock | Tax liability | -10.3% | -13,107 | 114,467 | 15 Mar 2026 | Direct | ||
| David Paul Maughan | DVA | Common Stock | Award | 4.34% | 5,308 | 127,574 | 15 Mar 2026 | Direct | ||
| David Paul Maughan | DVA | Stock Appreciation Rights | Award | 14,351 | 14,351 | 15 Mar 2026 | Direct | |||
| Phyllis R. Yale | DVA | Common Stock | Award | 2.37% | 332 | 14,313 | 15 Mar 2026 | Direct | ||
| Javier Rodriguez | DVA | Common Stock | Award | 2.35% | 20,900 | 909,815 | 15 Mar 2026 | Direct | ||
| Javier Rodriguez | DVA | Stock Appreciation Rights | Award | 56,506 | 56,506 | 15 Mar 2026 | Direct | |||
| Dennis W. Pullin | DVA | Common Stock | Award | 15.9% | 332 | 2,421 | 15 Mar 2026 | Direct | ||
| Jason M. Hollar | DVA | Common Stock | Award | 5.51% | 332 | 6,355 | 15 Mar 2026 | Direct | ||
| Christopher Michael Berry | DVA | Common Stock | Award | 22.8% | 3,649 | 19,640 | 15 Mar 2026 | Direct | ||
| Joel Ackerman | DVA | Common Stock | Tax liability | -18.9% | -42,820 | 183,905 | 15 Mar 2026 | Direct | ||
| Joel Ackerman | DVA | Common Stock | Award | 2.58% | 5,706 | 226,725 | 15 Mar 2026 | Direct | ||
| Joel Ackerman | DVA | Stock Appreciation Rights | Award | 15,427 | 15,427 | 15 Mar 2026 | Direct | |||
| Adam H. Schechter | DVA | Common Stock | Award | 6.5% | 332 | 5,442 | 15 Mar 2026 | Direct | ||
| Gregory J. Moore | DVA | Common Stock | Award | 4.59% | 332 | 7,563 | 15 Mar 2026 | Direct |