美国 · SEC FORM 4
QUANTUM CORP /DE/
QMCO · Nasdaq · CIK 0000709283 · Technology · Computer Hardware
内部人信号
当前没有活跃买入信号
0 qualifying P purchase groups
当前 180 天评分窗口
14 同一窗口内观察到的 Form 4 交易行
3 sales · 11 期权、代扣税、授予、赠与或其他交易行
最近一次合资格买入2021-08-12 · FICHTHORN JOHN · $57.3K
为什么没有活跃信号？
买入活动无
近期买入无
近期卖出较低
买入信号状态未激活
评分构成
活跃窗口内没有合资格买入，因此不计算分数。缺失的输入不会被当作零分或看空信号。
Cluster未计算
买入规模未计算
角色未计算
近期性未计算
确信度未计算
为什么没有分数？
- 没有合资格公开市场买入可提供聚集度、规模、角色、近期性或确信度输入。
- 卖出及其他 Form 4 活动继续作为背景显示，不会形成负分。
卖出和其他 Form 4 活动会单独显示，不会形成负面买入信号。没有买入不会被评分为看空。
买方广度、集中度与聚集买入
合资格买入进入 180 天研究窗口后，这些模块才会启用。
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。
AprMayJunJulAugSepOct
FICHTHORN JOHNDirector,TenPercentOwner
○○○
Dialectic Technology SPV LLCTenPercentOwner
○○
Craythorne AnthonyChief Revenue Officer
▼
Nash Laura A.Chief Accounting Officer
▼
Meyrath HuguesPresident & CEO
▼
Blevins Tony JDirector
○
● 买入▼ 卖出○ 其他
Showing the six most active owners; 5 additional owner(s) remain in Form 4 申报证据.
信号历史
暂无已记录的活跃信号快照
Scores are archived only when the company qualifies for a published US buy-signal snapshot. 最近一次合资格买入: 2021-08-12 · FICHTHORN JOHN.
近期 Form 4 活动
0买入
4卖出
23其他 Form 4 交易行
25SEC 申报 · 365天
买入0 qualifying P line(s) · 180 days
卖出3 sale line(s) · 仅供背景
其他11 exercise / withholding / award / gift / other lines
10b5-1／计划交易Not assessed
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
该股票尚未获取市场背景。每日任务会轮转处理美国股票池。
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
- 3,122,337
- 上期报告
- 2,045,010
- 日均成交量
- 2,174,445
- 回补天数
- 1.4
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 |
|---|---|---|---|---|---|---|---|
| 2021-08-12 | FICHTHORN JOHN | 买入 (P) | Common Stock | 10,000 | USD 5.73 | USD 57,300 | SEC 申报 ↗ |
| 2021-08-12 | Rothman Marc E | 买入 (P) | Common Stock | 20,000 | USD 5.70 | USD 114,000 | SEC 申报 ↗ |
| 2021-08-12 | RAU RAGHAVENDRA | 买入 (P) | Common Stock | 8,767 | USD 5.70 | USD 49,972 | SEC 申报 ↗ |
| 2021-08-11 | FICHTHORN JOHN | 买入 (P) | Common Stock | 30,000 | USD 5.69 | USD 170,700 | SEC 申报 ↗ |
| 2020-12-17 | FICHTHORN JOHN | 买入 (P) | Common Stock | 1,200 | USD 6.25 | USD 7,500 | SEC 申报 ↗ |
| 2020-12-16 | FICHTHORN JOHN | 买入 (P) | Common Stock | 18,800 | USD 6.18 | USD 116,184 | SEC 申报 ↗ |
| 2020-04-24 | B. RILEY CAPITAL MANAGEMENT, LLC; B. Riley FBR, Inc.; B. Riley Financial, Inc.; BRC Partners Management GP, LLC; BRC Partners Opportunity Fund, LP | 买入 (P) | Common Stock | 9,036 | USD 3.80 | USD 34,337 | SEC 申报 ↗ |
| 2020-04-21 | B. RILEY CAPITAL MANAGEMENT, LLC; B. Riley FBR, Inc.; B. Riley Financial, Inc.; BRC Partners Management GP, LLC; BRC Partners Opportunity Fund, LP | 买入 (P) | Common Stock | 21,371 | USD 3.81 | USD 81,424 | SEC 申报 ↗ |
| 2020-04-20 | B. RILEY CAPITAL MANAGEMENT, LLC; B. Riley FBR, Inc.; B. Riley Financial, Inc.; BRC Partners Management GP, LLC; BRC Partners Opportunity Fund, LP | 买入 (P) | Common Stock | 40,200 | USD 3.90 | USD 156,780 | SEC 申报 ↗ |
| 2020-04-16 | B. RILEY CAPITAL MANAGEMENT, LLC; B. Riley FBR, Inc.; B. Riley Financial, Inc.; BRC Partners Management GP, LLC; BRC Partners Opportunity Fund, LP | 买入 (P) | Common Stock | 425 | USD 3.65 | USD 1,551 | SEC 申报 ↗ |
| 2020-04-15 | B. RILEY CAPITAL MANAGEMENT, LLC; B. Riley FBR, Inc.; B. Riley Financial, Inc.; BRC Partners Management GP, LLC; BRC Partners Opportunity Fund, LP | 买入 (P) | Common Stock | 21,842 | USD 3.59 | USD 78,413 | SEC 申报 ↗ |
| 2020-04-14 | B. RILEY CAPITAL MANAGEMENT, LLC; B. Riley FBR, Inc.; B. Riley Financial, Inc.; BRC Partners Management GP, LLC; BRC Partners Opportunity Fund, LP | 买入 (P) | Common Stock | 96,783 | USD 3.79 | USD 366,808 | SEC 申报 ↗ |
| 2020-04-13 | B. RILEY CAPITAL MANAGEMENT, LLC; B. Riley FBR, Inc.; B. Riley Financial, Inc.; BRC Partners Management GP, LLC; BRC Partners Opportunity Fund, LP | 买入 (P) | Common Stock | 95,450 | USD 3.59 | USD 342,666 | SEC 申报 ↗ |
| 2020-04-09 | B. RILEY CAPITAL MANAGEMENT, LLC; B. Riley FBR, Inc.; B. Riley Financial, Inc.; BRC Partners Management GP, LLC; BRC Partners Opportunity Fund, LP | 买入 (P) | Common Stock | 39,365 | USD 3.62 | USD 142,501 | SEC 申报 ↗ |
| 2020-04-08 | B. RILEY CAPITAL MANAGEMENT, LLC; B. RILEY FBR, INC.; B. Riley Financial, Inc.; BRC Partners Management GP, LLC; BRC Partners Opportunity Fund, LP | 买入 (P) | Common Stock | 12,275 | USD 3.23 | USD 39,648 | SEC 申报 ↗ |
Form 4 申报证据
27 transaction lines in the latest 365-day window; 243 in local history.
| 日期 | 申报人 | 类型 | 证券 | 股数 | 平均价格 | 估算金额 | 来源 |
|---|---|---|---|---|---|---|---|
| 2026-10-01 | White Yue Zhou | 奖励／授予 (A) | Common Stock | 12,000 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2026-10-01 | Tracy John R. | 奖励／授予 (A) | Common Stock | 12,000 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2026-10-01 | Patel Hiral | 奖励／授予 (A) | Common Stock | 50,000 | USD 0.00 | USD 0 | SEC 申报 ↗ |
展开近期 Form 4 证据 (27 grouped rows)
| 日期 | 申报人 | 类型 | 证券 | 股数 | 平均价格 | 估算金额 | 来源 |
|---|---|---|---|---|---|---|---|
| 2026-10-01 | White Yue Zhou | 奖励／授予 (A) | Common Stock | 12,000 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2026-10-01 | Tracy John R. | 奖励／授予 (A) | Common Stock | 12,000 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2026-10-01 | Patel Hiral | 奖励／授予 (A) | Common Stock | 50,000 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2026-10-01 | Jaworksi Don | 奖励／授予 (A) | Common Stock | 12,000 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2026-10-01 | FICHTHORN JOHN | 奖励／授予 (A) | Common Stock | 12,000 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2026-10-01 | Clancy James C | 奖励／授予 (A) | Common Stock | 150,000 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2026-10-01 | Blevins Tony J | 奖励／授予 (A) | Common Stock | 12,000 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2026-08-03 | Craythorne Anthony | 卖出 (S) | Common Stock | 1,478 | USD 10.73 | USD 15,859 | SEC 申报 ↗ |
| 2026-07-02 | Nash Laura A. | 卖出 (S) | Common Stock | 260 | USD 10.51 | USD 2,733 | SEC 申报 ↗ |
| 2026-07-02 | Meyrath Hugues | 卖出 (S) | Common Stock | 6,232 | USD 10.51 | USD 65,498 | SEC 申报 ↗ |
| 2026-06-04 | FICHTHORN JOHN | C (C) | Common Stock | 11,020,645 | USD 5.19 | USD 57,197,148 | SEC 申报 ↗ |
| 2026-06-04 | FICHTHORN JOHN | 奖励／授予 (A) | Common Stock | 3,083,975 | USD 5.19 | USD 16,005,830 | SEC 申报 ↗ |
| 2026-06-04 | Dialectic Technology SPV LLC | C (C) | Common Stock | 11,020,645 | USD 5.19 | USD 57,197,148 | SEC 申报 ↗ |
| 2026-06-04 | Dialectic Technology SPV LLC | 奖励／授予 (A) | Common Stock | 3,083,975 | USD 5.19 | USD 16,005,830 | SEC 申报 ↗ |
| 2026-04-02 | Nash Laura A. | 卖出 (S) | Common Stock | 109 | USD 5.44 | USD 593 | SEC 申报 ↗ |
| 2026-03-04 | White William Hillis | 奖励／授予 (A) | Common Stock | 25,000 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2026-01-01 | White Yue Zhou | 奖励／授予 (A) | Common Stock | 12,000 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2026-01-01 | Tracy John R. | 奖励／授予 (A) | Common Stock | 12,000 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2026-01-01 | Meyrath Hugues | 奖励／授予 (A) | Common Stock | 62,500 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2026-01-01 | Jaworksi Don | 奖励／授予 (A) | Common Stock | 12,000 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2026-01-01 | FICHTHORN JOHN | 奖励／授予 (A) | Common Stock | 12,000 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2026-01-01 | Craythorne Anthony | 奖励／授予 (A) | Common Stock | 15,000 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2026-01-01 | Clancy James C | 奖励／授予 (A) | Common Stock | 12,000 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2026-01-01 | Blevins Tony J | 奖励／授予 (A) | Common Stock | 12,000 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2025-11-01 | Meyrath Hugues | 奖励／授予 (A) | Common Stock | 37,500 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2025-11-01 | Clancy James C | 奖励／授予 (A) | Common Stock | 1,000 | USD 0.00 | USD 0 | SEC 申报 ↗ |
| 2025-11-01 | Blevins Tony J | 奖励／授予 (A) | Common Stock | 1,000 | USD 0.00 | USD 0 | 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 | 2026-10-19 |
|---|---|
| 排名版本 | US-v1.2 |
| 数据质量 | PASS ELIGIBLE · — |
| 股票代码 | QMCO |
| CIK | 0000709283 |
| 行业 | Technology |
| 细分行业 | Computer Hardware Yahoo Finance |
| SEC SIC | 3572 Computer Storage Devices |
| 交易所 | Nasdaq |
数据覆盖
| 本地 Form 4 历史 | 243 transaction lines from 2020-01-29 to 2026-10-01 38 P purchase lines · 92 S sale lines · 113 other lines |
|---|---|
| SEC 公司申报 | 打开 SEC 申报 ↗ |
Local ledger as of 2026-10-19. Mapping status is an audit field and does not erase SEC filing evidence.