Insider Trading March 9, 2026

Quantum-Si Director Adds 500,000 Shares in $459,800 Purchase

Charles Kummeth increases his stake as the stock trades near its 52-week low amid mixed quarterly results and an analyst price-target cut

By Sofia Navarro QSI
Quantum-Si Director Adds 500,000 Shares in $459,800 Purchase
QSI

Quantum-Si Inc. director Charles R. Kummeth purchased 500,000 shares of Class A Common Stock on March 5, 2026, paying a weighted average of $0.9196 per share for a total outlay of $459,800. The trade leaves Kummeth with 855,000 directly held shares. The company's shares are trading near their 52-week low and recent quarterly results showed mixed outcomes, prompting an analyst to lower its price target while maintaining a Hold rating.

Key Points

  • Insider purchase: Director Charles R. Kummeth bought 500,000 Class A shares on March 5, 2026, at a weighted average price of $0.9196, totaling $459,800.
  • Post-transaction holdings: Kummeth now directly owns 855,000 Quantum-Si shares; the stock traded at $0.86, near its 52-week low of $0.84 and down 7.7% over the past week.
  • Company results and analyst move: Q4 2025 results showed EPS of -$0.08 (better than -$0.12 expected) but revenue of $451,000 missed the $761,900 estimate; Canaccord cut its target from $1.50 to $1.00 and kept a Hold rating.

Director Charles R. Kummeth of Quantum-Si Inc. (NASDAQ: QSI) executed an insider purchase on March 5, 2026, acquiring 500,000 shares of the company's Class A Common Stock. The transaction used a weighted average purchase price of $0.9196 per share, translating to a combined value of $459,800 for the lot. Individual prices paid within the transaction ranged from $0.8906 to $0.9735.

After this acquisition, Kummeth directly holds 855,000 shares of Quantum-Si. At the time of reporting, the stock was trading at $0.86 per share, roughly 2% above its 52-week low of $0.84. The share price has moved lower over the last week, recording a 7.7% decline during that period.

Market commentary included an InvestingPro analysis indicating the stock may be undervalued at current levels. The InvestingPro service is noted as offering a Pro Research Report on QSI along with 10 additional ProTips intended to assist investors seeking more detailed coverage.


Quantum-Si also disclosed its fourth-quarter 2025 financial results, which presented a mixed picture. The company reported earnings per share (EPS) of -$0.08, beating analyst expectations of -$0.12. Revenue for the quarter, however, fell short of consensus estimates, registering $451,000 versus an expected $761,900.

Following the earnings release, Canaccord adjusted its outlook for the company by lowering its price target from $1.50 to $1.00 while retaining a Hold rating on the shares. In its commentary, Canaccord cited the company’s low-single-digit sales volume of Platinum instruments and reported a gross margin of approximately 27% for the period.

The combination of the insider purchase, depressed share price, and the mixed quarterly data underscores recent developments at Quantum-Si. Investors and market participants will likely weigh the director’s purchase alongside the latest operating metrics and the analyst revision when assessing the company’s near-term prospects.


Contextual notes: The factual elements above are drawn from reported transaction details, current pricing levels, the company’s published quarterly results for Q4 2025, and the analyst action described. No additional conclusions beyond the reported facts are presented here.

Risks

  • Near-term stock weakness: The shares are trading close to their 52-week low and have fallen 7.7% in the past week, indicating potential continued downside in the equity market - this primarily affects equity investors and market participants.
  • Operational and revenue risk: The company reported revenue below analyst expectations in Q4 2025, reflecting uncertainty in sales momentum for instruments, which could impact revenue-sensitive valuations in the biotech and laboratory-instrument sectors.
  • Analyst sentiment shift: Canaccord’s reduction of its price target to $1.00, while maintaining a Hold rating, signals tempered near-term expectations and introduces analyst-driven valuation uncertainty for investors.

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