The purchase is too small to signal a near-term catalyst. Monitor for additional insider buying or a Form 4 filing from Hartree showing further accumulation. The historical pattern of strong post-buy returns on HDSN suggests the stock has been well-timed by insiders, but this single buy lacks conviction size.
Price Chart
Executive Summary
10% owner Hartree Partners, LP purchased 17,842 shares of HDSN at $5.99 for $107K on July 20, 2026. The buy is small relative to HDSN's $252M market cap (0.04%), but Hartree's additional $286K purchase on July 21 (per cross-filing context) suggests a modest building of a position. The signal is weak given the trivial size, but the 10% owner's open-market purchases carry some informational value.
Key Financial Metrics
Key Facts
- Hartree Partners, LP (10% owner) bought 17,842 shares open-market at $5.9892 on July 20, 2026
- Total purchase value: $107K, representing 0.042% of HDSN's $252M market cap
- Cross-filing context shows Hartree also bought 47,708 shares on July 21, 2026 for $286K, bringing combined 2-day total to $392K (0.16% of market cap)
- No C-suite insider participated in this purchase
Financial Impact
$107K open-market purchase by a 10% owner; combined with cross-filing activity totals $392K
Risk Factors
- Insider buying may be routine portfolio rebalancing, not a signal of undervaluation
- Small absolute dollar amount limits the informational content of the trade
- No C-suite participation reduces the strength of the signal per academic literature
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| INSIDER-BUY Data (Synthetic) | 0000921895-26-001855 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 28, 2026 28d ago | Insider Buy | $5.15 $5.31 | ▲ +3.11% | ▲ +1.16% | $5.24 (+1.75%) |
Sep 23, 2026 4w ago | Insider Buy | $5.23 $5.25 | ▲ +0.38% | ▲ +0.80% | $5.24 (+0.19%) |
Sep 18, 2026 5w ago | Insider Buy | $5.19 $5.10 | ▼ −1.73% | ▼ −0.71% | $5.24 (+0.96%) |
Sep 17, 2026 5w ago | Press Release | $5.17 $5.16 | ▼ −0.19% | ▼ −1.46% | $5.24 (+1.35%) |
Aug 26, 2026 8w ago | Insider Buy | $5.48 $5.25 | ▼ −4.20% | ▼ −4.47% | $5.24 (−4.38%) |
Jul 31, 2026 12w ago | Insider Buy | $6.23 $5.70 | ▼ −8.51% | ▼ −10.53% | $5.24 (−15.89%) |
Jul 22, 2026 13w ago | Insider Buy | $6.33 $5.80 | ▼ −8.37% | ▼ −8.85% | $5.24 (−17.22%) |
Jul 8, 2026 15w ago | Insider Buy | $6.41 $6.31 | ▼ −1.56% | ▼ −1.43% | $5.24 (−18.25%) |
Jul 2, 2026 16w ago | Insider Buy | $5.99 $6.41 | ▲ +7.01% | ▲ +6.08% | $5.24 (−12.52%) |
May 21, 2026 22w ago | Insider Cluster | $5.17 $5.37 | ▲ +3.87% | ▲ +2.27% | $5.24 (+1.35%) |
US Market Status
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