美国 · SEC FORM 4
BERKSHIRE HATHAWAY INC
BRK.B · NYSE · CIK 0001067983 · Financial Services · Insurance—Diversified
内部人信号
1 位买方 · 5 条买入交易行 · $500.6K 买入总额
为什么有这个信号？
评分构成
每条进度条表示其对当前分数的贡献；权重和公式保持不变。
哪些因素限制了当前分数？
- ⚠ Cluster breadth is moderate · 1 insider(s), not 4+
- ⚠ Role uses the day's average · no purchase states a title on the role scale
- ⚠ Purchase activity is becoming less recent
Purchase-size comments are relative to the model scale. Average daily volume is a separate market-context diagnostic.
US-v1.2 按当前 180 天规则给合资格的股票买入打分。分数只表示研究的先后，不是收益预测或概率。回测没有显示美国分数越高、之后的表现越好。
内部人活动时间轴
申报人轨道展示最近 180 天。符号形状区分交易类型；卖出仅作为背景。
—
买方广度与集中度
Roles in the peak window: See Remarks. Concentration uses priced qualifying P lines only and does not change the saved score.
信号历史
最新留档分数
- 50.8
- 50.7
- 50.6
- 50.5
- 50.3
Only scores saved when a full US scoring run completed are shown; gaps are not reconstructed.
近期 Form 4 活动
P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.
市场背景
市场背景补充近期价格表现与风险信息，不影响内部人信号。
价格表现
- 1M
- +1.7%
- 3M
- +3.8%
- 6M
- +7.4%
- 12M
- +3.2%
波动率与流动性
- 波动率
- 17.0%
- Beta
- —
- 平均每日成交额
- USD 2.2B
估值
- 市值
- —
- P/E
- —
基本面
- 利润率
- 18.0%
- ROE
- 9.3%
- 细分行业
- Insurance—Diversified
市场数据
价格数据截至：2026-10-11 · 价格来源：OpenBB/yfinance; 成交量来自 本机价格缓存 (yfinance) · 来自 SEC 申报文件：利润率, ROE · 财年截止日：2025-12-31 · Status: PASS
空头余额
空头余额是券商向 FINRA 申报的外部背景数据，不影响内部人信号。
- 空头股数
- 12,370,081
- 上期报告
- 12,529,378
- 日均成交量
- 5,322,205
- 回补天数
- 2.3
FINRA 结算日：2026-09-30 · 获取日期 2026-10-12 · FINRA 股票空头余额 ↗. 这是股数，每月两个结算日之后约一周公布；不是占已发行股份的比例。
历史股票买入
Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.
| Transaction date | Reporting owner | 类型 | 证券 | 股数 | 平均价格 | 估算金额 | 来源 |
|---|---|---|---|---|---|---|---|
| 2026-08-12 | O'Sullivan Michael J. | 买入 (P) | Class B Common Stock | 488 | USD 512.44 | USD 250,072 | SEC 申报 ↗ |
| 2026-05-06 | O'Sullivan Michael J. | 买入 (P) | Class B Common Stock | 536 | USD 467.44 | USD 250,545 | SEC 申报 ↗ |
| 2022-09-29 | Abel Gregory | 买入 (P) | Class A Common Stock | 1 | USD — | USD — | SEC 申报 ↗ |
| 2022-09-29 | Abel Gregory | 买入 (P) | Class A Common Stock | 3 | USD — | USD — | SEC 申报 ↗ |
| 2022-09-29 | Abel Gregory | 买入 (P) | Class A Common Stock | 23 | USD — | USD — | SEC 申报 ↗ |
| 2022-09-29 | Abel Gregory | 买入 (P) | Class A Common Stock | 38 | USD — | USD — | SEC 申报 ↗ |
| 2022-07-05 | OLSON RONALD L | 买入 (P) | Class B Common Stock | 2,410 | USD 274.35 | USD 661,183 | SEC 申报 ↗ |
| 2020-12-18 | OLSON RONALD L | 买入 (P) | Class B Common Stock | 4,000 | USD 222.33 | USD 889,320 | SEC 申报 ↗ |
| 2020-05-18 | WITMER MERYL B | 买入 (P) | Class B Common Stock | 1,000 | USD 173.30 | USD 173,300 | SEC 申报 ↗ |
| 2020-05-18 | WITMER MERYL B | 买入 (P) | Class A Common Stock | 3 | USD — | USD — | SEC 申报 ↗ |
Form 4 申报证据
22 transaction lines in the latest 365-day window; 155 in local history.
| 日期 | 申报人 | 类型 | 证券 | 股数 | 平均价格 | 估算金额 | 来源 |
|---|---|---|---|---|---|---|---|
| 2026-09-28 | Jain Ajit | 卖出 (S) | Class B Common Stock | 39,700 | USD 503.09 | USD 19,972,673 | SEC 申报 ↗ |
| 2026-09-03 | Jain Ajit | 赠与 (G) | Class B Common Stock | 10 | USD — | USD — | SEC 申报 ↗ |
| 2026-08-12 | O'Sullivan Michael J. | 买入 (P) | Class B Common Stock | 488 | USD 512.44 | USD 250,072 | SEC 申报 ↗ |
展开近期 Form 4 证据 (17 grouped rows)
| 日期 | 申报人 | 类型 | 证券 | 股数 | 平均价格 | 估算金额 | 来源 |
|---|---|---|---|---|---|---|---|
| 2026-09-28 | Jain Ajit | 卖出 (S) | Class B Common Stock | 39,700 | USD 503.09 | USD 19,972,673 | SEC 申报 ↗ |
| 2026-09-03 | Jain Ajit | 赠与 (G) | Class B Common Stock | 10 | USD — | USD — | SEC 申报 ↗ |
| 2026-08-12 | O'Sullivan Michael J. | 买入 (P) | Class B Common Stock | 488 | USD 512.44 | USD 250,072 | SEC 申报 ↗ |
| 2026-07-14 | BUFFETT WARREN E | 赠与 (G) | Class B Common Stock | 10,000,000 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2026-07-14 | BUFFETT WARREN E | C (C) | Class B Common Stock | 12,000,000 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2026-07-01 | Jain Ajit | 赠与 (G) | Class B Common Stock | 3 | USD — | USD — | SEC 申报 ↗ |
| 2026-05-22 | BUFFETT WARREN E | 赠与 (G) | Class B Common Stock | 160 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2026-05-18 | BUFFETT WARREN E | 赠与 (G) | Class B Common Stock | 18,646 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2026-05-18 | BUFFETT WARREN E | C (C) | Class B Common Stock | 37,500 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2026-05-14 | GUYMAN CHARLOTTE | 赠与 (G) | Class B Common Stock | 574 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2026-05-06 | O'Sullivan Michael J. | 买入 (P) | Class B Common Stock | 536 | USD 467.44 | USD 250,545 | SEC 申报 ↗ |
| 2026-03-27 | Jain Ajit | 赠与 (G) | Class B Common Stock | 22 | USD — | USD — | SEC 申报 ↗ |
| 2025-11-10 | BUFFETT WARREN E | 赠与 (G) | Class B Common Stock | 1,900,000 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2025-11-10 | BUFFETT WARREN E | C (C) | Class B Common Stock | 2,700,000 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2025-11-03 | GUYMAN CHARLOTTE | 赠与 (G) | Class B Common Stock | 410 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2025-11-03 | GUYMAN CHARLOTTE | C (C) | Class B Common Stock | 1,500 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2025-10-22 | Jain Ajit | 赠与 (G) | Class B Common Stock | 32 | USD — | USD — | SEC 申报 ↗ |
Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.
快照与身份
| 快照日期 | 2026-10-18 |
|---|---|
| 排名版本 | US-v1.2 |
| 数据质量 | PASS ELIGIBLE · — |
| 股票代码 | BRK.B |
| CIK | 0001067983 |
| 行业 | Financial Services |
| 细分行业 | Insurance—Diversified Yahoo Finance |
| SEC SIC | 6331 Fire, Marine & Casualty Insurance |
| 交易所 | NYSE |
数据覆盖
| 本地 Form 4 历史 | 155 transaction lines from 2020-02-28 to 2026-09-28 26 P purchase lines · 15 S sale lines · 114 other lines |
|---|---|
| SEC 公司申报 | 打开 SEC 申报 ↗ |
Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.