内部人交易雷达

美国 · SEC Form 4 · 快照日期： 2026-10-18 · 构建时间： 2026-10-18 · English

← 美国市场 · 覆盖记录

美国 · SEC FORM 4

MAMMOTH ENERGY SERVICES, INC.

TUSK · Nasdaq · CIK 0001679268 · Industrials · Conglomerates

内部人信号

77.8 / 100

3 位买方 · 6 条买入交易行 · $10.5M 买入总额

为什么有这个信号？

买方广度中等
买入规模较强
角色较强
近期性中等
确信度较强
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。

Cluster+21.0 / 35
买入规模+22.9 / 25
角色+18.0 / 20
近期性+5.9 / 10
确信度+10.0 / 10

哪些因素限制了当前分数？

  • ⚠ Cluster breadth is moderate · 3 insider(s), not 4+
  • ✓ 角色得分高 · 买入者中职位最高的是：Chief Business Officer

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。

AprMayJunJulAugSepOct
Amron Arthur HDirector
●●●●
DAVIDSON CHARLES E; JACOBS JOSEPH; WEXFORD CAPITAL LP; Wexford GP LLCChief Business Officer
○●
Jacobi Paul M.Chief Business Officer
○
Amron Arthur H; Amron Holdings LLCDirector
○
CD Holding Company, LLC; DAVIDSON CHARLES ETenPercentOwner
○
Plaumann Mark LawrenceDirector
●
● 买入▼ 卖出○ 其他

Showing the six most active owners; 1 additional owner(s) remain in Form 4 申报证据.

买方广度与集中度

合资格买方3
买入集中度100%最大买方： DAVIDSON CHARLES E; JACOBS JOSEPH; WEXFORD CAPITAL LP; Wexford GP LLC · $10.5M
聚集买入 · 15天2 insiders峰值活动： 2026-06-11–2026-06-17

Roles in the peak window: Chief Business Officer, Director. Concentration uses priced qualifying P lines only and does not change the saved score.

信号历史

77.8 / 100

最新留档分数

↓ -0.2 pts相对上一个留档快照
  1. 78.4
  2. 78.3
  3. 78.2
  4. 78.0
  5. 77.8

Only scores saved when a full US scoring run completed are shown; gaps are not reconstructed.

近期 Form 4 活动

7买入
0卖出
8其他 Form 4 交易行
9SEC 申报 · 365天
买入6 qualifying P line(s) · 180 days
卖出0 sale line(s) · 仅供背景
其他8 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

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
-9.3%
3M
-3.1%
6M
+17.0%
12M
+21.0%

波动率与流动性

波动率
67.0%
Beta
—
平均每日成交额
USD 431,321

估值

市值
USD 135.7M
P/E
29.5×

基本面

利润率
10.4%
ROE
1.8%
细分行业
Conglomerates

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：市值, P/E, 利润率, ROE · 财年截止日：2025-12-31 · 市值 = 申报文件封面所列的已发行股数 × 最新收盘价。股数日期：2026-08-04 · 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
110,518
上期报告
88,848
日均成交量
93,678
回补天数
1.2

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 dateReporting owner类型证券股数平均价格估算金额来源
2026-09-16Plaumann Mark Lawrence买入 (P)Common Stock5,000USD 3.00USD 15,000SEC 申报 ↗
2026-06-17DAVIDSON CHARLES E; JACOBS JOSEPH; WEXFORD CAPITAL LP; Wexford GP LLC买入 (P)Common Stock4,019,574USD 2.60USD 10,450,892SEC 申报 ↗
2026-06-12Amron Arthur H买入 (P)Common Stock2,000USD 3.28USD 6,560SEC 申报 ↗
2026-06-11Amron Arthur H买入 (P)Common Stock2,500USD 3.22USD 8,050SEC 申报 ↗
2026-05-28Amron Arthur H买入 (P)Common Stock3,000USD 3.25USD 9,750SEC 申报 ↗
2026-05-26Amron Arthur H买入 (P)Common Stock2,500USD 3.24USD 8,100SEC 申报 ↗
2025-12-11Amron Arthur H买入 (P)Common Stock10,000USD 1.89USD 18,900SEC 申报 ↗
2024-12-12Amron Arthur H买入 (P)Common Stock1,000USD 2.97USD 2,970SEC 申报 ↗
2024-05-30Amron Arthur H买入 (P)Common Stock3,000USD 3.65USD 10,950SEC 申报 ↗
2024-05-28Amron Arthur H买入 (P)Common Stock2,000USD 3.57USD 7,140SEC 申报 ↗
2024-03-12Amron Arthur H买入 (P)Common Stock3,000USD 3.72USD 11,160SEC 申报 ↗
2022-06-17DAVIDSON CHARLES E; JACOBS JOSEPH; WEXFORD CAPITAL LP; Wexford GP LLC买入 (P)Common Stock10,382USD 2.17USD 22,529SEC 申报 ↗
2022-06-16DAVIDSON CHARLES E; JACOBS JOSEPH; WEXFORD CAPITAL LP; Wexford GP LLC买入 (P)Common Stock35,000USD 2.13USD 74,550SEC 申报 ↗
2022-06-15DAVIDSON CHARLES E; JACOBS JOSEPH; WEXFORD CAPITAL LP; Wexford GP LLC买入 (P)Common Stock5,100USD 2.23USD 11,373SEC 申报 ↗
2022-06-14DAVIDSON CHARLES E; JACOBS JOSEPH; WEXFORD CAPITAL LP; Wexford GP LLC买入 (P)Common Stock20,600USD 2.28USD 46,968SEC 申报 ↗

Form 4 申报证据

15 transaction lines in the latest 365-day window; 84 in local history.

日期申报人类型证券股数平均价格估算金额来源
2026-09-16Plaumann Mark Lawrence买入 (P)Common Stock5,000USD 3.00USD 15,000SEC 申报 ↗
2026-06-26Lancaster PhillipJ (J)Common Stock68,152USD 0.00USD 0SEC 申报 ↗
2026-06-17Jacobi Paul M.J (J)Common Stock3,211USD 0.00USD 0SEC 申报 ↗
展开近期 Form 4 证据 (12 grouped rows)
日期申报人类型证券股数平均价格估算金额来源
2026-09-16Plaumann Mark Lawrence买入 (P)Common Stock5,000USD 3.00USD 15,000SEC 申报 ↗
2026-06-26Lancaster PhillipJ (J)Common Stock68,152USD 0.00USD 0SEC 申报 ↗
2026-06-17Jacobi Paul M.J (J)Common Stock3,211USD 0.00USD 0SEC 申报 ↗
2026-06-17DAVIDSON CHARLES E; JACOBS JOSEPH; WEXFORD CAPITAL LP; Wexford GP LLC买入 (P)Common Stock4,019,574USD 2.60USD 10,450,892SEC 申报 ↗
2026-06-17DAVIDSON CHARLES E; JACOBS JOSEPH; WEXFORD CAPITAL LP; Wexford GP LLCJ (J)Common Stock7,427,563USD 0.00USD 0SEC 申报 ↗
2026-06-17CD Holding Company, LLC; DAVIDSON CHARLES EJ (J)Common Stock6,470,441USD 0.00USD 0SEC 申报 ↗
2026-06-17Amron Arthur H; Amron Holdings LLCJ (J)Common Stock29,450USD 0.00USD 0SEC 申报 ↗
2026-06-12Amron Arthur H买入 (P)Common Stock2,000USD 3.28USD 6,560SEC 申报 ↗
2026-06-11Amron Arthur H买入 (P)Common Stock2,500USD 3.22USD 8,050SEC 申报 ↗
2026-05-28Amron Arthur H买入 (P)Common Stock3,000USD 3.25USD 9,750SEC 申报 ↗
2026-05-26Amron Arthur H买入 (P)Common Stock2,500USD 3.24USD 8,100SEC 申报 ↗
2025-12-11Amron Arthur H买入 (P)Common Stock10,000USD 1.89USD 18,900SEC 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TUSK
CIK0001679268
行业Industrials
细分行业Conglomerates Yahoo Finance
SEC SIC1389 Oil & Gas Field Services, NEC
交易所Nasdaq

数据覆盖

本地 Form 4 历史84 transaction lines from 2020-03-03 to 2026-09-16
21 P purchase lines · 23 S sale lines · 40 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.