AWM funds sell 42K shares of 908 Devices stock
AWM Investment Company, Inc., as investment adviser to several funds, reported open-market sales of 908 Devices Inc. common stock held indirectly through limited partnerships.
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Form Type
4
Rhea-AI Filing Summary
AWM Investment Company, Inc., as investment adviser to several funds, reported open-market sales of 908 Devices Inc. common stock held indirectly through limited partnerships. The transactions covered 39,782 shares at a weighted-average price of $8.9703 on June 4, 2026 and 2,500 shares at $8.95 on June 2, 2026. After these sales, entities advised by AWM reported holding 4,887,491 shares indirectly. AWM and its principals disclaim beneficial ownership of these shares except to the extent of their pecuniary interest.
Insider Trade Summary
Net Seller: 42,282 shares
Net Sell
2 txns
Insider
AWM Investment Company, Inc.
Role
10% Owner
Sold
42,282 shs ($379K)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | 908 DEVICES, INC. | 39,782 | $8.9703 | $357K |
| Sale | 908 DEVICES, INC. | 2,500 | $8.95 | $22K |
Holdings After Transaction:
908 DEVICES, INC. — 4,887,491 shares (Indirect, By Limited Partnership)
Footnotes (3)
- F1. This is a weighted average price.
- F2. AWM Investment Company, Inc., a Delaware Corporation (AWM), is the investment adviser to Special Situations Fund III QP, L.P. (SSFQP), Special Situations Cayman Fund, L.P. (CAY), Special Situations Private Equity Fund, L.P. (SSPE), Special Situations Technology Fund, L.P. (TECH) and Special Situations Technology Fund II, L.P. (TECH II and together with SSFQP, CAY, SSPE and TECH, the Funds). As the investment adviser to the Funds, AWM holds sole voting and investment power over 2,025,616 shares of Common Stock of the Issuer (the Shares) held by SSFQP, 578,813 Shares held by CAY, 267,602 Shares held by SSPE, 338,137 Shares held by TECH and 1,677,323 Shares held by TECH II.
- F3. David M. Greenhouse (Greenhouse) and Adam C. Stettner (Stettner) are the controlling principals of AWM. The reporting person disclaims beneficial ownership of the Shares, except to the extent of its pecuniary interest therein. This report shall not be deemed an admission that the reporting person is the beneficial owner of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.
Key Figures
Shares sold (total): 42,282 shares
Sale on June 4, 2026: 39,782 shares at $8.9703
Sale on June 2, 2026: 2,500 shares at $8.95
+4 more
7 metrics
Shares sold (total)
42,282 shares
Two open-market sales reported in Form 4
Sale on June 4, 2026
39,782 shares at $8.9703
Weighted-average sale price, open-market transaction
Sale on June 2, 2026
2,500 shares at $8.95
Open-market sale of common stock
Shares held after transactions
4,887,491 shares
Indirect ownership via limited partnerships after sales
SSFQP holding
2,025,616 shares
Shares with sole voting and investment power via SSFQP
CAY holding
578,813 shares
Shares with sole voting and investment power via CAY
TECH II holding
1,677,323 shares
Shares with sole voting and investment power via TECH II
Key Terms
open-market sale, weighted average price, investment adviser, beneficial ownership, +2 more
6 terms
open-market sale financial
"transaction_action: open-market sale"
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
weighted average price financial
"This is a weighted average price."
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
investment adviser financial
"AWM Investment Company, Inc. ... is the investment adviser to Special Situations Fund III QP, L.P."
An investment adviser is a person or firm that professionally manages money and gives recommendations about buying, selling, or holding investments. Like a financial coach or guide, they have a legal duty to act in a client's best financial interest, so their advice, fees and potential conflicts can directly affect returns and risk — making their role important for investors who want informed, accountable help with portfolios.
beneficial ownership financial
"The reporting person disclaims beneficial ownership of the Shares, except to the extent of its pecuniary interest therein."
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
pecuniary interest financial
"disclaims beneficial ownership of the Shares, except to the extent of its pecuniary interest therein."
Section 16 regulatory
"for purposes of Section 16 of the Securities Exchange Act of 1934, as amended"
Section 16 is a U.S. securities law rule that governs the trading and disclosure obligations of company insiders — typically officers, directors and large shareholders — to promote transparency and deter unfair profit-taking. It requires insiders to publicly report their stock trades and allows companies or the issuer to reclaim quick, short-term profits from certain insider trades, like a scoreboard and a refund policy that help investors see and limit possible insider advantage.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What insider transactions did AWM Investment Company report for 908 Devices (MASS)?
AWM Investment Company reported two open-market sales of 908 Devices common stock. Funds it advises sold 39,782 shares at a weighted-average price of $8.9703 on June 4, 2026, and 2,500 shares at $8.95 on June 2, 2026.
What is AWM’s reported 908 Devices (MASS) position after these sales?
After the reported transactions, entities advised by AWM show indirect ownership of 4,887,491 908 Devices shares. These are held through several limited partnerships, and the Form 4 clarifies that AWM reports them as indirect holdings by limited partnership.
Who controls AWM Investment Company in relation to this 908 Devices (MASS) filing?
The filing identifies David M. Greenhouse and Adam C. Stettner as controlling principals of AWM Investment Company. AWM serves as investment adviser to several Special Situations funds that hold the reported 908 Devices common stock positions.
AI-generated analysis. How Rhea-AI works. Not financial advice.
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