The sale is small and routine for a director. Monitor for any subsequent Form 4 filings to confirm execution. No material read-through for the stock.
Price Chart
Executive Summary
Director Matthew T. Wiley filed a Form 144 notice of intent to sell 3,097 shares of Definium Therapeutics (DFTX) with an estimated aggregate market value of approximately $113,753. The shares are from restricted stock vesting under a registered plan. This is a relatively small sale relative to the company's $134 million market cap and appears to be a routine insider transaction to cover tax obligations or diversify holdings.
Key Facts
- Filer: Matthew T. Wiley, a director of Definium Therapeutics
- Proposed sale of 3,097 shares of common stock
- Estimated aggregate market value: $113,752.81
- Shares sourced from restricted stock vesting under a registered plan
- Filing date: September 25, 2026
- Company market cap: ~$134 million (based on filing data)
- Broker: Morgan Stanley Smith Barney LLC Executive Financial Services
Financial Impact
Proposed sale of ~$114k worth of shares, representing approximately 0.08% of market cap
Risk Factors
- Insider selling ahead of negative news cannot be ruled out, but the small size and vesting source mitigate this risk
- Form 144 is an intent to sell; actual sale may not occur
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 144 Filing (Primary) | 0001950047-26-009816 |
| Document: 0001950047-26-009816-index.html | 0001950047-26-009816 |
| Document: 0001950047-26-009816.txt | 0001950047-26-009816 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 29, 2026 4w ago | Insider Cluster | $38.06 $35.09 | ▲ +7.80% | ▲ +9.72% | $37.96 (+0.26%) |
Sep 25, 2026 4w ago | 144 | $38.41 $36.23 | ▼ −5.68% | ▼ −6.88% | $37.96 (−1.17%) |
Sep 25, 2026 4w ago | 144 | $38.41 $36.23 | ▼ −5.68% | ▼ −6.88% | $37.96 (−1.17%) |
Sep 25, 2026 4w ago | 144 | $38.41 $36.23 | ▼ −5.68% | ▼ −6.88% | $37.96 (−1.17%) |
Sep 14, 2026 6w ago | 8-K | $40.25 $39.28 | ▼ −2.41% | ▼ −2.52% | $37.96 (−5.69%) |
Aug 12, 2026 11w ago | 8-K | $42.79 $45.82 | ▲ +7.08% | ▲ +7.53% | $37.96 (−11.29%) |
Aug 9, 2026 11w ago | Institutional Cluster | $45.15 $45.26 | ▲ +0.24% | ▲ +0.29% | $37.96 (−15.92%) |
Jun 25, 2026 18w ago | 144 | $44.95 $44.19 | ▼ −1.69% | ▼ −3.86% | $37.96 (−15.55%) |
Jun 25, 2026 18w ago | 144 | $44.95 $44.19 | ▼ −1.69% | ▼ −3.86% | $37.96 (−15.55%) |
Jun 24, 2026 18w ago | 8-K | $44.79 $43.40 | ▲ +3.10% | ▲ +4.66% | $37.96 (+15.25%) |
US Market Status
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