| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Insider activity in HDSN over the last quarter tilts toward buying: insiders added a net 306,431 shares worth roughly $1.7M. In the past 30 days, 1 insider bought and 0 sold. The tilt toward buying has held up recently.
The largest recent buyer is Hartree Partners, LP (10% Owner), now holding an estimated $27.3M in HDSN.
Classified under Chemicals (Materials sector), HDSN's insider flows are most useful compared with peers in the same group.
| Role | Insider | Shares | Value | 30d |
|---|---|---|---|---|
| 10% | 5.35M | $27.27M | +129.6K | |
| Dir | 1.94M | $14.40M | - | |
| Dir | 169.7K | $1.15M | - | |
| Dir | 158.3K | - | - | |
| VP | 142.1K | $1.01M | - |
Buys and sells only
| Date | Insider | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 24, 2026 | Hartree Partners, LP | 10% Owner | Buy | 118,549 | $5.10 | $604,445.79 | +2.3% | - | - | |
| Sep 23, 2026 | Hartree Partners, LP | 10% Owner | Buy | 13,515 | $5.10 | $68,923.50 | +0.3% | - | - | |
| Sep 16, 2026 | Hartree Partners, LP | 10% Owner | Buy | 11,136 | $5.10 | $56,793.60 | +0.2% | - | - | |
| Sep 2, 2026 | Hartree Partners, LP | 10% Owner | Buy | 5,317 | $5.10 | $27,116.70 | +0.1% | - | - | |
| Aug 25, 2026 | Hartree Partners, LP | 10% Owner | Buy | 100,612 | $5.50 | $553,046.92 | +2.0% | - | - | |
| Aug 12, 2026 | Hartree Partners, LP | 10% Owner | Buy | 5,198 | $5.50 | $28,589.00 | +0.1% | - | - | |
| Jul 29, 2026 | Hartree Partners, LP | 10% Owner | Buy | 52,104 | $5.99 | $312,102.96 | +1.0% | - | - | |
| Jul 21, 2026 | Hartree Partners, LP | 10% Owner | Buy | 65,550 | $5.99 | $392,601.60 | +1.3% | - | - | |
| Jul 7, 2026 | Hartree Partners, LP | 10% Owner | Buy | 5,234 | $5.99 | $31,351.66 | +0.1% | - | - | |
| Jul 2, 2026 | Hartree Partners, LP | 10% Owner | Buy | 764,202 | $5.86 | $4,477,207.13 | +18.2% | - | - |