908 Devices Inc.
908 Devices Inc.（MASS）股东结构
基于 13F 申报与流通股数据，展示机构、内部人与公众持股结构；下方为前十大机构、机构动向与内部人交易。
SEC 13F · FMP · MASS · 截至 2025年9月30日
股东结构概览
108
机构持有人数
▲ 5 vs Q2
$215.17M
机构持仓总市值
▲ $41.60M vs Q2
37.81M
总流通股
freeFloat 74.74%
24.56M
13F 申报持股数
▲ 219,111 vs Q2
机构持仓% = 13F 持股数 ÷ 总流通股。内部人% = 100 − 自由流通率。散户% = 自由流通率 − 机构%。数据来源：FMP /symbol-positions-summary + /shares-float + SEC EDGAR。
前10大机构持仓
MASS 最大股东 · 机构持仓
Q3 2025 · SEC 13F
显示前 10 家
| 机构 | 持股数 | 占比 | 权重 | 市值 | 申报日 | 变动 |
|---|---|---|---|---|---|---|
AWM INVESTMENT COMPANY, INC. measuring & controlling devices, nec | 5.20M | 14.49% | 14.49% | $45.55B | Nov 13, 2025 | — held |
FIRST LIGHT ASSET MANAGEMENT, LLC measuring & controlling devices, nec | 2.51M | 7.00% | 7.00% | $21.99B | Nov 14, 2025 | ▲ 1.44M |
STATE STREET CORP measuring & controlling devices, nec | 2.30M | 6.41% | 6.41% | $20.14B | Nov 14, 2025 | ▲ 11.5K |
ARK INVESTMENT MANAGEMENT LLC measuring & controlling devices, nec | 1.95M | 5.45% | 5.45% | $17.12B | Nov 12, 2025 | ▼ 694.5K |
BLACKROCK, INC. measuring & controlling devices, nec | 1.76M | 4.89% | 4.89% | $15.38B | Nov 12, 2025 | ▼ 34.6K |
VANGUARD GROUP INC measuring & controlling devices, nec | 1.42M | 3.96% | 3.96% | $12.45B | Nov 7, 2025 | ▼ 9.4K |
GM ADVISORY GROUP, INC. measuring & controlling devices, nec | 678.1K | 1.89% | 1.89% | $5.94B | Nov 19, 2025 | ▼ 487.2K |
GEODE CAPITAL MANAGEMENT, LLC measuring & controlling devices, nec | 672.1K | 1.87% | 1.87% | $5.89B | Nov 12, 2025 | ▲ 13.5K |
FIRST EAGLE INVESTMENT MANAGEMENT, LLC measuring & controlling devices, nec | 604.0K | 1.68% | 1.68% | $5.29B | Nov 12, 2025 | ▲ 336.6K |
MORGAN STANLEY measuring & controlling devices, nec | 571.7K | 1.59% | 1.59% | $5.01B | May 27, 2026 | ▲ 17.4K |
数据来源：SEC 13F 申报文件。变动标识：isNew / isSoldOut / changeInSharesNumber。
机构仓位变动
Q3 2025 对比上季度
Q3 2025
20
增持
+2.28M 股5
新建仓
首次建仓19
减持
−1.94M 股0
清仓
完全退出净股数变化（前50家）
+343.9K
+2.28M / −1.94M
净新增持仓人
+6
新建 5 个 / 退出 0 个
基于前50家最大机构持仓统计，全市场实际数量可能不同。
内幕交易买卖情绪
MASS 内幕交易记录
数据来源：SEC Form 4
近期内部人员以卖出为主。 卖出可能源于预定的 10b5-1 计划，不代表负面展望。
7
买入笔数
27
卖出笔数
0.26
买卖比
$1M
卖出总金额
最近内幕交易记录
最近10条 · 仅普通股
| 姓名 · 职位 | 日期 | 类型 | 股数 | 价格 | 金额 | 交易后持股 | 申报 |
|---|---|---|---|---|---|---|---|
Brown Christopher D. director | Jun 4, 2026 | Sale | 100 | $9.00 | $900 | 875.5K | Form 4 ↗ |
AWM Investment Company, Inc. 10 percent owner | Jun 2, 2026 | Sale | 2,500 | $8.95 | $22.4K | 4.93M | Form 4 ↗ |
AWM Investment Company, Inc. 10 percent owner | Jun 4, 2026 | Sale | 39,782 | $8.97 | $356.9K | 4.89M | Form 4 ↗ |
Brown Christopher D. director | Jun 3, 2026 | Sale | 20,000 | $8.73 | $174.6K | 875.6K | Form 4 ↗ |
AWM Investment Company, Inc. 10 percent owner | May 27, 2026 | Sale | 1,500 | $8.25 | $12.4K | 5.12M | Form 4 ↗ |
AWM Investment Company, Inc. 10 percent owner | May 27, 2026 | Sale | 15,000 | $8.25 | $123.8K | 5.10M | Form 4 ↗ |
AWM Investment Company, Inc. 10 percent owner | May 28, 2026 | Sale | 170,442 | $8.66 | $1.48M | 4.93M | Form 4 ↗ |
Brown Christopher D. director | May 28, 2026 | Sale | 30,000 | $9.00 | $270.0K | 895.6K | Form 4 ↗ |
Griffith Joseph H. IV Chief Financial Officer | May 28, 2026 | Sale | 6,940 | $9.03 | $62.7K | 133.0K | Form 4 ↗ |
AWM Investment Company, Inc. 10 percent owner | May 11, 2026 | Sale | 5,000 | $8.25 | $41.3K | 5.12M | Form 4 ↗ |
数据来源：SEC Form 4。买卖方向：acquisitionOrDisposition A=买入，D=卖出。已排除 RSU 归属（M-Exempt）。
关于机构与内部人持股结构
908 Devices Inc.（MASS）主要由机构投资者持有，机构持股比例约为 65.0%。公司内部人员持股约 25.26%，散户及公众持股约占剩余的 9.78%。
908 Devices Inc. 最大机构股东为 AWM INVESTMENT COMPANY, INC.，截至 September 30, 2025 持有约 5.20 million 股，占总流通股的 14.49%。
目前共有 108 家机构持有 MASS 股票，合计持仓市值约 $215,172,792，数据来源为最新 SEC 13F 申报。
常见问题
MASS ownership908 Devices Inc.（MASS）主要由机构投资者持有，机构持股约 65.0%。最大股东为 AWM INVESTMENT COMPANY, INC.，持股比例 14.49%。内部人员持股约 25.26%。数据来源 SEC Form 13F，截至 September 30, 2025。