Why is Neuronetics stock tumbling today?

Neuronetics Inc stock slid 11.4% in pre-open trading today after the company priced an underwritten public offering of 18,750,000 shares at $1.60 per share, targeting gross proceeds of approximately $30 million before expenses — a price that represented a meaningful discount to where shares had been trading.

The offering, led by William Blair as bookrunning manager with BTIG and Canaccord Genuity as co-bookrunners, is expected to close on or about November 12, 2026, subject to customary conditions.

The capital raise is directly tied to the company’s efforts to resolve a going concern risk that has been disclosed in its recent SEC filings.

Neuronetics entered into a sixth amendment to its credit agreement with Perceptive Credit Holdings IV, LP on November 5, 2026, which would modify certain revenue covenants — but only if the company makes a prepayment of at least $15 million on its outstanding term loan by November 30, 2026.

A portion of the offering proceeds is earmarked for that repayment. Adding further pressure, a Form 144 was filed on November 11, signaling a proposed sale of securities by a company insider or affiliate.

Despite the company reporting improving operational momentum in its third quarter — including a 12.5% year-over-year revenue increase and a swing to positive adjusted EBITDA — the financial structure concerns overshadowed those gains today.

The broader market offered no cover for the stock-specific selling: the S&P 500 and Nasdaq are both advancing in today’s session, underscoring that the decline in STIM is entirely driven by company-specific factors rather than any macro headwind.

Taken together, the steep discount on the share offering, the going concern backdrop, the tight November 30 deadline to satisfy credit amendment conditions, and the insider sale notice created a confluence of negative signals that sent the stock sharply lower in pre-market trading, even as peers and the broader market moved in the opposite direction.