New York, January 14, 2026, 15:20 ET — Regular session underway.
- Impinj shares plunged following a preliminary update on its fourth-quarter results.
- The company maintained its existing revenue and profit forecasts, with no upgrades announced.
- Attention turns to management’s remarks and the upcoming earnings report for a better read on 2026.
Impinj shares dropped 12.7% to $174.28 in Wednesday afternoon trading following a preliminary fourth-quarter update that aligned with its earlier guidance. The stock hit a low of $171.42 after starting the day at $192.28.
Impinj forecasted fourth-quarter 2025 revenue toward the top of its earlier $90.0 million to $93.0 million range, with adjusted EBITDA expected to surpass the midpoint of the $15.4 million to $16.9 million guidance. The company noted these are preliminary, unaudited numbers and plans to release full fourth-quarter and annual results after U.S. markets close on Feb. 5. A conference call will follow at 5:00 p.m. ET. 1
That’s key since Impinj’s shares often react sharply to minor shifts in tag and reader demand. The update didn’t provide much new data, leaving traders to focus on upcoming figures — and any signals on 2026 outlook changes.
The company provided the update in a Form 8-K submitted to the U.S. Securities and Exchange Commission on Tuesday, under Item 2.02 covering results-related details. 2
Adjusted EBITDA excludes interest, taxes, depreciation, amortization, and frequently other expenses. It offers a fast snapshot of operating performance but can differ from reported earnings when stock-based compensation and additional costs come into play.
Impinj produces chips and systems for RAIN RFID, the wireless tags enabling retailers and logistics companies to track goods by scanning multiple items at once. A reader powers the tag and retrieves a unique ID, converting products—from apparel to shipments—into data.
Wednesday’s response suggests investors expected something stronger than “near the high end.” Without a fresh range, all eyes turn to management’s comments on demand, margins, and inventory during the report.
However, the update carries some caveats. The company noted that these preliminary numbers are still subject to the quarter-end close and possible final tweaks. Any discrepancy between adjusted profit and GAAP results could still influence sentiment.
