MASS
908 Devices Inc.
+1.18 (+11.90%)11.10USD365K成交股數459M市值–本益比(近四季)7.5股價營收比+23.3%營收年增(近四季)2026-11-10下次財報
內部人交易 SEC Form 4 · 董事、高階主管與持股 10% 以上股東 · 交易後兩個營業日內申報
買賣點與股價近一年
● 公開市場買進 · ● 公開市場賣出 · 空心 = 10b5-1 預設計畫(事先排程,不代表當下看法)。近一年,只畫 P / S 兩種代碼。
統計
| 近 90 天 買進筆數 · 金額 · 人數 | 0 · 0.00 · 0 |
|---|---|
| 近 90 天 賣出筆數 · 金額 · 人數 | 24 · 4.4M · 4 |
| 其中 10b5-1 計畫賣出 | 19 筆 |
| 近 180 天 買進 · 賣出金額 | 0.00 · 8.4M |
| 近 180 天 淨額 | −8.4M |
公開市場買進(P)是內部人自掏腰包,通常比賣出更有資訊含量 —— 賣出的理由很多(繳稅、分散、買房),買進的理由只有一個。
10b5-1 是事先排定的交易計畫,執行時點不反映當下看法。獲配股票(A)、繳稅扣股(F)、選擇權執行(M)是薪酬流程,不是意見。
| 交易日 | 申報日 | 申報人 | 職稱 | 代碼 | 股數 | 價格 | 金額 | 交易後持股 | 原件 |
|---|---|---|---|---|---|---|---|---|---|
| 2026-09-02 | 09-04 | Brown Christopher D. | Director | S 公開市場賣出(10b5-1) | 30.0K | 10.58 | 317K | 776K | SEC |
| 2026-08-25 | 08-27 | Griffith Joseph H. IV | Chief Financial Officer | S 公開市場賣出(10b5-1) | 11.5K | 10.95 | 125K | 121K | SEC |
| 2026-08-21 | 08-24 | AWM Investment Company, Inc. | TenPercentOwner | S 公開市場賣出 | 41.6K | 10.61 | 441K | 4.8M | SEC |
| 2026-08-20 | 08-24 | AWM Investment Company, Inc. | TenPercentOwner | S 公開市場賣出 | 8.4K | 10.52 | 89K | 4.8M | SEC |
| 2026-08-17 | 08-17 | Knopp Kevin J. | President and CEO | S 公開市場賣出(10b5-1) | 20.0K | 10.35 | 207K | 556K | SEC |
| 2026-08-13 | 08-17 | Knopp Kevin J. | President and CEO | S 公開市場賣出(10b5-1) | 7.6K | 10.06 | 77K | 576K | SEC |
| 2026-08-12 | 08-12 | Knopp Kevin J. | President and CEO | S 公開市場賣出(10b5-1) | 2.7K | 10.07 | 28K | 584K | SEC |
| 2026-08-11 | 08-12 | Knopp Kevin J. | President and CEO | S 公開市場賣出(10b5-1) | 116K | 9.83 | 1.1M | 617K | SEC |
| 2026-08-11 | 08-12 | Brown Christopher D. | Director | S 公開市場賣出(10b5-1) | 8.4K | 9.23 | 77K | 806K | SEC |
| 2026-08-11 | 08-12 | Knopp Kevin J. | President and CEO | S 公開市場賣出(10b5-1) | 30.2K | 10.16 | 307K | 586K | SEC |
| 2026-08-10 | 08-12 | Brown Christopher D. | Director | S 公開市場賣出(10b5-1) | 9.4K | 9.03 | 85K | 814K | SEC |
| 2026-08-10 | 08-12 | Knopp Kevin J. | President and CEO | S 公開市場賣出(10b5-1) | 348 | 9.06 | 3K | 732K | SEC |
| 2026-08-05 | 08-07 | Brown Christopher D. | Director | S 公開市場賣出(10b5-1) | 20.0K | 8.49 | 170K | 823K | SEC |
| 2026-08-04 | 08-06 | AWM Investment Company, Inc. | TenPercentOwner | S 公開市場賣出 | 50.0K | 8.36 | 418K | 4.8M | SEC |
| 2026-08-01 | 08-03 | Vann Brandi C | Director | M 選擇權執行 | 5.2K | – | – | 5.2K | SEC |
| 2026-07-02 | 07-07 | Knopp Kevin J. | President and CEO | S 公開市場賣出(10b5-1) | 222 | 9.07 | 2K | 733K | SEC |
| 2026-07-02 | 07-07 | Brown Christopher D. | Director | S 公開市場賣出(10b5-1) | 2.2K | 9.02 | 20K | 843K | SEC |
| 2026-06-30 | 07-02 | Brown Christopher D. | Director | S 公開市場賣出(10b5-1) | 20.0K | 8.84 | 177K | 846K | SEC |
| 2026-06-26 | 06-30 | Knopp Kevin J. | President and CEO | S 公開市場賣出(10b5-1) | 2.8K | 9.09 | 25K | 733K | SEC |
| 2026-06-25 | 06-25 | Leonhart Michele M. | Director | M 選擇權執行 | 6.5K | – | – | 27.1K | SEC |
| 2026-06-25 | 06-25 | Knopp Kevin J. | President and CEO | S 公開市場賣出(10b5-1) | 16.4K | 9.10 | 149K | 736K | SEC |
| 2026-06-24 | 06-25 | Knopp Kevin J. | President and CEO | S 公開市場賣出(10b5-1) | 40.5K | 9.14 | 370K | 752K | SEC |
| 2026-06-23 | 06-25 | Knopp Kevin J. | President and CEO | S 公開市場賣出(10b5-1) | 3.4K | 9.06 | 31K | 793K | SEC |
| 2026-06-23 | 06-25 | Brown Christopher D. | Director | S 公開市場賣出(10b5-1) | 9.9K | 9.04 | 89K | 866K | SEC |
| 2026-06-23 | 06-24 | AWM Investment Company, Inc. | TenPercentOwner | S 公開市場賣出 | 3.0K | 9.00 | 27K | 4.9M | SEC |
| 2026-06-22 | 06-24 | AWM Investment Company, Inc. | TenPercentOwner | S 公開市場賣出 | 4.7K | 8.99 | 42K | 4.9M | SEC |
| 2026-06-10 | 06-12 | Spoto Mark | Director | M 選擇權執行 | 14.1K | – | – | 89.3K | SEC |
| 2026-06-10 | 06-12 | HRUSOVSKY E KEVIN | Director | M 選擇權執行 | 14.1K | – | – | 165K | SEC |
| 2026-06-10 | 06-12 | ELOI FENEL M | Director | M 選擇權執行 | 14.1K | – | – | 40.9K | SEC |
| 2026-06-10 | 06-12 | Hunt Anthony | Director | M 選擇權執行 | 14.1K | – | – | 44.2K | SEC |
| 2026-06-10 | 06-12 | Leonhart Michele M. | Director | M 選擇權執行 | 14.1K | – | – | 20.6K | SEC |
| 2026-06-10 | 06-12 | CRANDELL KEITH | Director | M 選擇權執行 | 14.1K | – | – | 39.4K | SEC |
| 2026-06-04 | 06-05 | Brown Christopher D. | Director | S 公開市場賣出(10b5-1) | 100 | 9.00 | 900.00 | 875K | SEC |
| 2026-06-04 | 06-04 | AWM Investment Company, Inc. | TenPercentOwner | S 公開市場賣出 | 39.8K | 8.97 | 357K | 4.9M | SEC |
| 2026-06-03 | 06-04 | Brown Christopher D. | Director | S 公開市場賣出(10b5-1) | 20.0K | 8.73 | 175K | 876K | SEC |
| 2026-06-02 | 06-04 | AWM Investment Company, Inc. | TenPercentOwner | S 公開市場賣出 | 2.5K | 8.95 | 22K | 4.9M | SEC |
| 2026-05-28 | 05-29 | Brown Christopher D. | Director | S 公開市場賣出(10b5-1) | 30.0K | 9.00 | 270K | 896K | SEC |
| 2026-05-28 | 05-29 | AWM Investment Company, Inc. | TenPercentOwner | S 公開市場賣出 | 170K | 8.66 | 1.5M | 4.9M | SEC |
| 2026-05-28 | 05-29 | Griffith Joseph H. IV | Chief Financial Officer | S 公開市場賣出(10b5-1) | 6.9K | 9.03 | 63K | 133K | SEC |
| 2026-05-27 | 05-29 | AWM Investment Company, Inc. | TenPercentOwner | S 公開市場賣出 | 1.5K | 8.25 | 12K | 5.1M | SEC |
| 2026-05-27 | 05-29 | AWM Investment Company, Inc. | TenPercentOwner | S 公開市場賣出 | 15.0K | 8.25 | 124K | 5.1M | SEC |
| 2026-05-11 | 05-13 | AWM Investment Company, Inc. | TenPercentOwner | S 公開市場賣出 | 5.0K | 8.25 | 41K | 5.1M | SEC |
| 2026-05-08 | 05-11 | Kenneweg John | SVP, Sales & Product Marketing | S 公開市場賣出 | 18.3K | 8.11 | 148K | 57.8K | SEC |
| 2026-05-08 | 05-08 | AWM Investment Company, Inc. | TenPercentOwner | S 公開市場賣出 | 3.0K | 8.20 | 25K | 5.1M | SEC |
| 2026-05-07 | 05-08 | AWM Investment Company, Inc. | TenPercentOwner | S 公開市場賣出 | 12.8K | 8.20 | 105K | 5.1M | SEC |
| 2026-05-06 | 05-08 | AWM Investment Company, Inc. | TenPercentOwner | S 公開市場賣出 | 5.0K | 8.00 | 40K | 5.2M | SEC |
| 2026-05-06 | 05-08 | AWM Investment Company, Inc. | TenPercentOwner | S 公開市場賣出 | 57.4K | 8.06 | 462K | 5.1M | SEC |
| 2026-05-06 | 05-07 | Brown Christopher D. | Director | S 公開市場賣出(10b5-1) | 20.0K | 7.23 | 145K | 926K | SEC |
| 2026-05-01 | 05-04 | Kenneweg John | SVP, Sales & Product Marketing | M 選擇權執行 | 26.0K | – | – | 83.8K | SEC |
| 2026-05-01 | 05-04 | Kenneweg John | SVP, Sales & Product Marketing | S 公開市場賣出 | 7.8K | 6.83 | 53K | 76.0K | SEC |
| 2026-04-10 | 04-14 | McCallion Kevin J. | SVP, Products and Production | S 公開市場賣出(10b5-1) | 2.7K | 7.01 | 19K | 44.9K | SEC |
| 2026-04-10 | 04-14 | McCallion Kevin J. | SVP, Products and Production | M 選擇權執行 | 2.7K | 1.05 | 3K | 47.6K | SEC |
| 2026-04-10 | 04-10 | Brown Christopher D. | Director | S 公開市場賣出(10b5-1) | 17.6K | 7.07 | 124K | 946K | SEC |
| 2026-04-09 | 04-10 | McCallion Kevin J. | SVP, Products and Production | M 選擇權執行 | 5.4K | 1.05 | 6K | 50.3K | SEC |
| 2026-04-09 | 04-10 | Brown Christopher D. | Director | S 公開市場賣出(10b5-1) | 7.4K | 7.04 | 52K | 963K | SEC |
| 2026-04-09 | 04-10 | McCallion Kevin J. | SVP, Products and Production | S 公開市場賣出(10b5-1) | 5.4K | 7.03 | 38K | 44.9K | SEC |
| 2026-04-08 | 04-10 | Brown Christopher D. | Director | S 公開市場賣出(10b5-1) | 15.0K | 7.05 | 106K | 971K | SEC |
| 2026-04-08 | 04-10 | McCallion Kevin J. | SVP, Products and Production | S 公開市場賣出(10b5-1) | 18.6K | 7.05 | 131K | 44.9K | SEC |
| 2026-04-08 | 04-10 | McCallion Kevin J. | SVP, Products and Production | M 選擇權執行 | 18.6K | 1.05 | 20K | 63.5K | SEC |
| 2026-03-02 | 03-05 | McCallion Kevin J. | SVP, Products and Production | S 公開市場賣出(10b5-1) | 7 | 7.00 | 49.00 | 44.9K | SEC |
| 2026-03-02 | 03-05 | McCallion Kevin J. | SVP, Products and Production | M 選擇權執行 | 7 | 1.05 | 7.35 | 44.9K | SEC |
| 2026-03-02 | 03-04 | McCallion Kevin J. | SVP, Products and Production | S 公開市場賣出(10b5-1) | 7 | 7.00 | 49.00 | 44.9K | SEC |
| 2026-02-02 | 02-03 | Knopp Kevin J. | President and CEO | S 公開市場賣出 | 34.8K | 6.18 | 215K | 796K | SEC |
| 2026-02-02 | 02-03 | Griffith Joseph H. IV | Chief Financial Officer | S 公開市場賣出 | 23.2K | 6.18 | 143K | 140K | SEC |
| 2026-02-01 | 02-03 | Brown Christopher D. | Director | M 選擇權執行 | 5.0K | – | – | 967K | SEC |
| 2026-02-01 | 02-03 | Brown Christopher D. | Director | M 選擇權執行 | 7.4K | – | – | 975K | SEC |
| 2026-02-01 | 02-03 | Griffith Joseph H. IV | Chief Financial Officer | M 選擇權執行 | 5.1K | – | – | 98.0K | SEC |
| 2026-02-01 | 02-03 | Griffith Joseph H. IV | Chief Financial Officer | M 選擇權執行 | 11.3K | – | – | 120K | SEC |
| 2026-02-01 | 02-03 | Griffith Joseph H. IV | Chief Financial Officer | M 選擇權執行 | 10.3K | – | – | 108K | SEC |
| 2026-02-01 | 02-03 | Brown Christopher D. | Director | M 選擇權執行 | 11.0K | – | – | 986K | SEC |
| 2026-02-01 | 02-03 | Knopp Kevin J. | President and CEO | M 選擇權執行 | 66.3K | – | – | 831K | SEC |
| 2026-02-01 | 02-03 | Knopp Kevin J. | President and CEO | M 選擇權執行 | 17.0K | – | – | 764K | SEC |
| 2026-02-01 | 02-03 | Knopp Kevin J. | President and CEO | M 選擇權執行 | 13.4K | – | – | 747K | SEC |
| 2026-02-01 | 02-03 | Knopp Kevin J. | President and CEO | M 選擇權執行 | 11.3K | – | – | 734K | SEC |
| 2026-02-01 | 02-03 | Griffith Joseph H. IV | Chief Financial Officer | M 選擇權執行 | 43.5K | – | – | 163K | SEC |
| 2025-12-30 | 02-03 | Spoto Mark | Director | G 贈與 | 928 | – | – | 75.3K | SEC |
| 2025-12-30 | 02-03 | Spoto Mark | Director | G 贈與 | 928 | – | – | 0 | SEC |
| 2025-10-14 | 02-03 | Spoto Mark | Director | W 遺囑取得 | 928 | – | – | 928 | SEC |
| 2025-10-03 | 10-06 | Griffith Joseph H. IV | Chief Financial Officer | S 公開市場賣出(10b5-1) | 4.3K | 9.05 | 39K | 92.9K | SEC |
| 2025-10-02 | 10-06 | Griffith Joseph H. IV | Chief Financial Officer | S 公開市場賣出(10b5-1) | 708 | 9.04 | 6K | 97.2K | SEC |
機構持股(13F) 管理規模 1 億美元以上的機構,每季末後 45 天內申報 · 最新 2026-06-30
前 25 大持有機構季末市值 · 與前一季股數比較
| 機構 | 持股 | 季末市值 | 股數季變化 | 動作 |
|---|---|---|---|---|
| First Light Asset Management, LLC | 6.3M | 54.7M | 新進 | 新進 |
| AWM Investment Company, Inc. | 4.9M | 42.5M | 新進 | 新進 |
| 方舟(伍德) ARK Investment Management LLC | 2.0M | 17.6M | 新進 | 新進 |
| BlackRock, Inc. | 1.9M | 16.9M | 新進 | 新進 |
| First Eagle Investment Management, LLC | 1.9M | 16.2M | 新進 | 新進 |
| NEEDHAM INVESTMENT MANAGEMENT LLC | 1.8M | 15.8M | 新進 | 新進 |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.3M | 11.2M | 新進 | 新進 |
| GEODE CAPITAL MANAGEMENT, LLC | 762K | 6.6M | 新進 | 新進 |
| Granahan Investment Management, LLC | 692K | 6.0M | 新進 | 新進 |
| STATE STREET CORP | 607K | 5.3M | 新進 | 新進 |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 470K | 4.1M | 新進 | 新進 |
| MORGAN STANLEY | 404K | 3.5M | 新進 | 新進 |
| Prescott Group Capital Management, L.L.C. | 362K | 3.1M | 新進 | 新進 |
| Meros Investment Management, LP | 361K | 3.1M | 新進 | 新進 |
| AMERICAN CENTURY COMPANIES INC | 360K | 3.1M | 新進 | 新進 |
| HighMark Wealth Management LLC | 340K | 3.0M | 新進 | 新進 |
| NORTHERN TRUST CORP | 266K | 2.3M | 新進 | 新進 |
| BANK OF AMERICA CORP /DE/ | 251K | 2.2M | 新進 | 新進 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 234K | 2.0M | 新進 | 新進 |
| Sumitomo Mitsui Trust Group, Inc. | 229K | 2.0M | 新進 | 新進 |
| Amova Asset Management Americas, Inc. | 229K | 2.0M | 新進 | 新進 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 195K | 1.7M | 新進 | 新進 |
| 文藝復興 RENAISSANCE TECHNOLOGIES LLC | 192K | 1.7M | 新進 | 新進 |
| VANGUARD FIDUCIARY TRUST CO | 186K | 1.6M | 新進 | 新進 |
| RAYMOND JAMES FINANCIAL INC | 167K | 1.5M | 新進 | 新進 |
持有機構數近 12 季
每季 13F 申報中持有本股的機構家數;綠柱 = 比上季少。機構數是「有多少人在船上」,不是「買了多少」。
| 持有機構 · 季變化 | 112 +0 |
|---|---|
| 新進 / 出清 / 加碼 / 減碼 | 112 / 0 / 0 / 0 |
| 機構合計持股 · 佔流通股 | 29.0M · 70.2% |
| 合計季末市值 | 251M |
13F 只申報多頭部位(含可轉債與選擇權,選擇權這裡已排除),不申報放空,也不申報 1 億美元以下的機構。同一集團多個申報主體會各算一家。
放空餘額 FINRA 每月兩次(15 日與月底結算)· 最新 2026-08-31
空單佔流通股近 13 個月
FINRA 每月兩次結算的空單餘額佔流通股數的比例,近 13 個月。滑到柱子看股數與回補天數。
最新一期
| 空單股數 | 2.8M |
|---|---|
| 與上期比 | +0.6% |
| 佔流通股數 | 6.80% |
| 日均成交量 | 507K |
| 回補天數 | 5.5 天 |
空單佔比 10% 以上算高、20% 以上算很高(這是通行的說法,不是本站的判斷)。回補天數 = 空單 ÷ 日均量,天數愈長,空方要出場時愈容易推升股價。
放空餘額是「有人借股票賣掉還沒還」的存量,不代表看空的人正在加碼;避險基金做多空配對時也會產生空單。
| 結算日 | 空單股數 | 與上期比 | 佔流通股 | 日均量 | 回補天數 |
|---|---|---|---|---|---|
| 2026-08-31 | 2.8M | +0.6% | 6.80% | 507K | 5.5 |
| 2026-08-14 | 2.8M | -17.6% | 6.76% | 551K | 5.1 |
| 2026-07-31 | 3.4M | +4.8% | 8.20% | 308K | 11.0 |
| 2026-07-15 | 3.2M | +5.0% | 7.83% | 216K | 15.0 |
| 2026-06-30 | 3.1M | -3.9% | 7.45% | 446K | 6.9 |
| 2026-06-15 | 3.2M | +1.0% | 7.76% | 233K | 13.8 |
| 2026-05-29 | 3.2M | -5.0% | 7.68% | 279K | 11.4 |
| 2026-05-15 | 3.3M | -3.9% | 8.09% | 316K | 10.6 |
| 2026-04-30 | 3.5M | +0.0% | 8.41% | 230K | 15.1 |
| 2026-04-15 | 3.5M | -4.1% | 8.41% | 254K | 13.7 |
| 2026-03-31 | 3.6M | -3.3% | 8.78% | 271K | 13.4 |
| 2026-03-13 | 3.8M | -3.2% | 9.08% | 331K | 11.3 |
| 2026-02-27 | 3.9M | +1.3% | 9.38% | 185K | 21.0 |
| 2026-02-13 | 3.8M | +20.0% | 9.26% | 334K | 11.5 |
| 2026-01-30 | 3.2M | -4.1% | 7.72% | 439K | 7.3 |
| 2026-01-15 | 3.3M | +0.5% | 8.04% | 283K | 11.7 |
| 2025-12-31 | 3.3M | +6.9% | 8.00% | 692K | 4.8 |
| 2025-12-15 | 3.1M | +10.9% | 7.49% | 351K | 8.8 |
| 2025-11-28 | 2.8M | +23.7% | 6.75% | 436K | 6.4 |
| 2025-11-14 | 2.3M | +15.6% | 5.46% | 428K | 5.3 |
| 2025-10-31 | 2.0M | +0.8% | 4.72% | 250K | 7.8 |
| 2025-10-15 | 1.9M | +2.8% | 4.68% | 369K | 5.3 |
| 2025-09-30 | 1.9M | +0.2% | 4.55% | 526K | 3.6 |
| 2025-09-15 | 1.9M | -4.1% | 4.54% | 330K | 5.7 |
| 2025-08-29 | 2.0M | -2.3% | 4.74% | 201K | 9.7 |
| 2025-08-15 | 2.0M | -1.2% | 4.85% | 336K | 6.0 |