§ ELECTRICAL EQUIPMENT
USD · Electrical EquipmentMASS
908 DEVICES INC
USDSector · Electrical Equipment
§ 01 · PRICE
Price action
1D5D1M6MYTD1YMAX
§ 03 · SIGNAL STACK · WHAT THE INPUTS SAY
13F FLOW
63 increased/new, 36 decreased/exited (13F)
AC 13F Analysis
§ 05 · WHO OWNS IT
Top institutional holders
| Fund | Shares | % port | Δ Q/Q |
|---|---|---|---|
| First Light Asset Management, LLC | 6.1M | 3.3% | +26% |
| AWM Investment Company, Inc. | 5.2M | 3.5% | ±0% |
| ARK Investment Management LLC | 1.9M | 0.1% | −2% |
| BlackRock, Inc. | 1.8M | 0.0% | −2% |
| NEEDHAM INVESTMENT MANAGEMENT LLC | 1.2M | 0.4% | +61% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.1M | n/a | n/a |
◇ AC INTELLIGENCE
Top institutional owners for MASS as of the most recent 13F reporting period (Q1 2026 · Period ended Mar 31). Δ Q/Q reflects share-count change vs. the prior filing — positive green means adding, negative red means trimming. Cross-reference with the ownership-mix bars below to see which strategy cohort is driving the flow.
§ 06 · WHO OWNS IT · BY STRATEGY
OTHER20.1% · 0 holders
OTHER59.3% · 68 holders
PASSIVE / INDEX7.4% · 7 holders
DEALER / BANK4.5% · 16 holders
DEEP VALUE4.3% · 1 holder
QUALITY / COMPOUNDER2.3% · 9 holders
SYSTEMATIC / QUANT1.3% · 5 holders
TACTICAL / MACRO0.8% · 2 holders
INCOME / DEFENSIVE0.1% · 4 holders
◇ AC INTELLIGENCE
Ownership mix by behavioral cohort. Top bars indicate which style of capital dominates the float — passive indexing, quality compounders, dealer/bank, systematic quant, etc. Big quality-compounder share means concentrated active conviction; heavy passive share means flows are dictated by index rebalances, not fundamentals.
§ 07 · INSIDER ACTIVITY · LAST 180 DAYS
NO INSIDER FILINGS
◇ AC INTELLIGENCE
No Form 4 filings on record for MASS in the last 180 days.