AWM Investment Company, Inc. 4

What Happened

AWM Investment Company, Inc., reported as a 10% owner (investment adviser to several funds), sold a total of 7,718 shares of 908 Devices (MASS) in two open-market transactions: 4,668 shares at $8.99 on June 22, 2026 (≈ $41,965) and 3,050 shares at $9.00 on June 23, 2026 (≈ $27,463). Total proceeds from these sales were about $69,428. These were sales (not purchases), which are often routine portfolio transactions rather than an indication of insider sentiment.

Key Details

• Transaction dates and prices: 6/22/2026 — 4,668 shares @ $8.99 (F1 notes a weighted average price); 6/23/2026 — 3,050 shares @ $9.00. Both transactions coded as S (sale).
• Shares controlled before/after: Per footnote F2, AWM holds sole voting and investment power over 4,879,773 shares held across its funds. After disposing 7,718 shares, that position would be roughly 4,872,055 shares (approximate).
• Notable footnotes:
  • F2: AWM is the investment adviser to multiple funds (listed) and holds sole voting/investment power over the shares reported.
  • F3: AWM’s controlling principals are David M. Greenhouse and Adam C. Stettner; AWM disclaims beneficial ownership except for pecuniary interest.
  • F1: indicates a weighted-average price was used for at least one reported sale.
• Filing timeliness: Form 4 was filed on 2026-06-24 covering transactions on 6/22 and 6/23 — filed within the typical two-business-day window.

Context

AWM is an institutional investment adviser (10% owner) managing multiple funds. Sales by such entities are commonly portfolio rebalancing or liquidity actions and do not necessarily reflect personal views of company management. The filing disclaims AWM’s beneficial ownership beyond pecuniary interest, underscoring this is institutional fund activity rather than an executive’s personal trade.