| Period | Completed events | Price coverage | Hit rate | Median excess return | Average excess return | Worst excess return |
|---|---|---|---|---|---|---|
| 5D | 10Developing evidence | 100.0% (10/10) | 50.0% (5/10) | -0.4% | -1.3% | -10.8% |
| 20D | 7Developing evidence | 87.5% (7/8) | 14.3% (1/7) | -4.0% | -5.2% | -13.1% |
| 60D | 3Small sample | 100.0% (3/3) | 0.0% (0/3) | -21.2% | -20.4% | -22.1% |
| 120D | 0No data | Awaiting maturity | — | — | — | — |
COMPANY RESEARCH
HUDSON TECHNOLOGIES INC /NY
HDSN · United States · Industrials
INSIDER SIGNAL
Insider activity score：87.0 / 100
9 insiders · 25 purchase events · $6.76m net purchases
US #12 · United States #12
WHY THIS SIGNAL?
Score anatomy
Each bar shows the contribution to the current score; the weights and formula stay unchanged.
Cluster+35.0 / 35
How many distinct insiders bought in the cluster
Purchase size+22.4 / 25
Purchase value relative to company size and liquidity
Role+7.0 / 20
The seniority and relevance of participating insiders
Recency+6.7 / 10
How recently the purchases occurred
Conviction+10.0 / 10
How clearly buying stands out from other activity
What is holding the score back?
- ⚠ Insider role contributes less on the current role scale
- ⚠ Purchase activity is becoming less recent
- ✓ Broad buyer cluster · 4+ distinct filers
The role contribution follows the US model's seniority ladder.
Buying concentration
97%
Largest buyer：Hartree Partners, LP · 6.55m USD
Gross qualified purchase transaction-line value：6.76m USD
The headline $ total is net buying for the screen; this module uses gross qualified purchase transaction-line values in the filing currency, so the amounts can differ. The current 15-day buyer-breadth input counts distinct buyers; value concentration is disclosed separately here.
This is a ranking under the current US screening rules—not a probability of gain, return forecast, or buy recommendation.
Key purchase quotes (filing currency)
| Filer | Price per unit | Trade date |
|---|---|---|
| Hartree Partners, LP | 5.1 USD | Sep 24, 2026 |
| Hartree Partners, LP | 5.1 USD | Sep 23, 2026 |
| Hartree Partners, LP | 5.88 USD | Jul 1, 2026 |
Model details
Cluster breakdown (does not change the score)
- 15-day buyer breadth (count)
- 8 distinct reported filers
- Peak time window
- 2026-05-13 to 2026-05-19
- Current breadth input
- 1.000 (capped at 4+ buyers)
- Buyer independence
- Not yet measured; related-party fields are not cross-market comparable
What the filings show
- 🟢 Recent eligible purchase
Hartree Partners, LP · 605k USD · Price 5.1 USD · Sep 24, 2026 - 🟢 Eligible purchase
Hartree Partners, LP · 56k USD · Price 5.1 USD · Sep 23, 2026 - 🟢 Large eligible purchase
Hartree Partners, LP · 1.69m USD · Price 5.88 USD · Jul 1, 2026 - 🟡 24 remaining qualified transaction line(s) across 18 disclosure(s)
- 🔴 4 other transaction line(s) are not counted as discretionary-buying evidence; 4 have zero price
Insider vs stock price
19 purchase day(s), 27 purchase line(s) in the 180-day window.
Daily close (USD)Day with an insider purchaseTwo or more insiders the same day
Markers sit on the closing price of the transaction day. They show when insiders traded, not the price they paid or received. "Since" compares that day's close with the last close shown; it is what happened at this company, not a forecast.
If you had followed the purchase
Each row starts on the first close on or after the day a purchase was made public, the earliest a reader could have acted, and ends on the last close shown above.
| Made public | Insiders | In this stock, now | In the median peer stock, now | Difference |
|---|---|---|---|---|
| 2026-05-15 | 7 | 1,047 +4.7% | 932 −6.8% | +114 +11.4 pts |
| 2026-05-21 | 2 | 996 −0.4% | 918 −8.2% | +78 +7.8 pts |
| 2026-07-02 | 1 | 860 −14.0% | 894 −10.6% | −34 −3.4 pts |
| 2026-07-08 | 1 | 800 −20.0% | 907 −9.3% | −107 −10.7 pts |
| 2026-07-22 | 1 | 832 −16.8% | 933 −6.7% | −101 −10.1 pts |
| 2026-07-31 | 1 | 853 −14.7% | 936 −6.4% | −83 −8.3 pts |
| 2026-08-14 | 1 | 908 −9.2% | 910 −9.0% | −1 −0.1 pts |
| 2026-08-26 | 1 | 974 −2.6% | 915 −8.5% | +58 +5.8 pts |
| 2026-09-04 | 1 | 963 −3.7% | 920 −8.0% | +43 +4.3 pts |
| 2026-09-18 | 1 | 996 −0.4% | 961 −3.9% | +35 +3.5 pts |
| 2026-09-23 | 1 | 1,002 +0.2% | 974 −2.6% | +27 +2.7 pts |
| 2026-09-28 | 1 | 1,010 +1.0% | 985 −1.5% | +25 +2.5 pts |
7 of 12 disclosure day(s) ended ahead of the median peer stock.
Close to close, before costs, taxes, dividends and currency moves. The peer is the median of the other stocks on the same exchange for which this site holds prices (1201 here), not an index. This is what happened, not a forecast: across all purchases on this site the typical gap is close to zero.
Insider timeline
8 insiders bought within 7 days, 13 May to 19 May: 6 Board member, 1 CEO / chair, 1 CFO. 1 more bought afterwards. The share closed at 4.92 on the first of those days and at 5.15 most recently (+4.7%). That week 232 companies across United States disclosed insider purchases, more than in 92% of the last 26 weeks: insiders often buy together when a closed period ends, so the timing alone says less than it seems.
Tap an item for what it means.
●A purchase: the bigger the dot, the more was bought
Each dot is one insider's purchases on one day. The dot's area follows the amount: the largest purchase here gets the largest dot. Hold the pointer over a dot to see the date and the amount.
▮Purple band: several insiders bought within 15 days
The band marks the stretch with the most different buyers: at most 15 days long and at least two people. Here it is 13 May – 19 May, with 8 insiders. Only the strongest stretch is marked. Several people deciding the same thing is harder to explain by one person's private reasons, but insiders often buy together just after a closed period ends, so compare it with the grey weekly bars.
Blue line: this share's price, −16.3% over these six months
The closing price of each day, from 6.15 on 2026-04-21 to 5.15 on 2026-10-07. The line has no scale; read it for high and low: a dot on a low stretch was bought cheaply, a dot on a high stretch was not.
Dashed line: the typical stock on the same exchange, −11.4%
Taken from the 1230 other stocks on the same exchange that this site holds prices for. Each is measured from the first day of the window, and every day the middle one is drawn. It starts where the blue line starts, so the gap between the two is the difference: this share −16.3%, the typical one −11.4%, 4.9 points behind. It is not an index and not a comparison within one industry.
▂Grey bars: companies across United States disclosing purchases each week
A taller bar is a week in which more companies disclosed insider purchases. The purple bar is the week of the band above: 232 companies, number 2 of the last 26 weeks. If that week was a peak anyway, buying together is less special than it looks.
This company: insiders buying per month, last 12 months
1Nov
Dec
Jan
Feb
Mar
Apr
8May
1Jun
1Jul
1Aug
1Sep
Oct
Darker bars are inside the 180-day window above.
Who traded
| Insider | Role | Purchases | Sales | Bought | First purchase | Share price since |
|---|---|---|---|---|---|---|
| Gaglione Kenneth | CEO / chair | 1 | — | 24.5k USD | 2026-05-13 | +4.7% |
| Bertaux Brian J. | CFO | 1 | — | 9.7k USD | 2026-05-19 | +5.3% |
| Parrillo Richard | Board member | 2 | — | 73.1k USD | 2026-05-13 | +4.7% |
| Prouty Eric A | Board member | 1 | — | 24.2k USD | 2026-05-13 | +4.7% |
| Sheriff Alan | Board member | 1 | — | 25.4k USD | 2026-05-13 | +4.7% |
| Bulgarino Nicole E | Board member | 1 | — | 2.7k USD | 2026-05-14 | +6.4% |
| Feeler Jeffrey R | Board member | 1 | — | 25.1k USD | 2026-05-14 | +6.4% |
| Mansy Loan Nguyen | Board member | 1 | — | 24.8k USD | 2026-05-14 | +6.4% |
| Hartree Partners, LP | Associated person | 16 | — | 6.6M USD | 2026-06-30 | −10.3% |
Why this score? · Model details
Priority = 100 × Σ(fixed weight × 0–1 rule-based input)
| Factor | Weight | This company input | Point contribution |
|---|---|---|---|
| 15-day buyer breadth (count) | 35% | 1.000 | 35.0 |
| Qualified-buy size | 25% | 0.894 | 22.4 |
| Role informativeness (inverted) | 20% | 0.650 | 13.0 |
| Recency | 10% | 0.670 | 6.7 |
| Buy/sell conviction | 10% | 1.000 | 10.0 |
This is a heuristic ordering under the current rules, not a calibrated return forecast. It explains why candidates rank differently; the public-filing evidence and data limits are shown below.
BULL VS BEAR
Two readings of this buying
The same filings, read two ways. Each line is a fact stored for this company with the number behind it, and appears only when that number crosses a fixed threshold. Neither side is a forecast and no winner is declared.
Where the evidence comes from
Independent evidence does not object: the purchases themselves carry bull lines (several insiders together, more buyers than usual here, large purchases, purchase added much to the holding); share price and trading, short sellers, company results were checked and none crosses a bear threshold. No data is held for: company actions.
- The insider purchases themselvesBullseveral insiders together, more buyers than usual here, large purchases, purchase added much to the holding Bearvalue concentrated in one buyer4 checked, under the threshold · 1 missing
- Share price and trading2 checked, under the threshold
- Short sellers2 checked, under the threshold
- Company results1 checked, under the threshold · 1 missing
- Company actionsno data held
Bull case · the buying is informative
- 8 insiders bought within 15 days (2026-05-13 to 2026-05-19). Several people reaching the same decision at the same time is hard to put down to one person's circumstances.
- 9 insiders bought in the last 180 days against 1 in the 180 days before: more than this company's own recent norm.
- Net purchases of $6.8M equal 3.1% of the company's market value ($221.4M): large for the size of the business.
- 18 of 19 purchase filings state the shares held before and after. In 1 of them the filer reported no shares of the company before the purchase. The largest addition to an existing holding took it from 4,065 to 9,265 shares (+128%). A holding here is one way of owning the shares: directly, or through one named trust or entity.
Bear case · discount it
- Hartree Partners, LP accounts for 97% of the value bought. The other 8 buyers add names more than money.
Evidence still missing
- No buyer here has 5 or more completed earlier purchases on record, so there is no track record to weigh.
- Only one reading of profitability is held (profit margin 3.5%). Whether earnings and cash flow are rising or falling needs the last two reports side by side.
Checked and under the threshold: 9, 1 close to it
- BearThe share price changed −15% over six months (three months −20%, one month −3.7%) and stands 51% below its 52-week high. Counted for the bear side from a fall of 20%. close to the threshold
- BearNo insider sale is recorded in the same 180 days.
- EitherThe latest purchase is 24 days old. Bull up to 14 days, bear from 90.
- BearOver three months the share price changed −20% and the median of 115 Industrials companies changed −12%: behind by 8 points. Counted for the bear side from 20 points behind.
- BearNone of the 18 purchase filings ticks Form 4's 10b5-1 box.
- BearOver the last 5 trading days to 2026-10-16, 56% of this stock's off-exchange volume was sold short; over the 60 days before, 57%. The market's median is 50%. This is trading volume, not a position: a market maker who sells short and covers the same day is counted, so about half of all volume is short on an ordinary day. It is shown for comparison and counts for neither side.
- BearNo insider filing in the last 180 days opened a hedge on this stock.
- BearFINRA short interest on 2026-09-30 equals 5.9 days of average trading volume, down 5.2% from the previous report. Counted for the bear side from 10 days, or from 10% of the shares outstanding.
- BearProfit margin on the latest captured figures is 3.5%. Counted for the bear side when negative.
Both columns arrange stored facts only. They do not change the insider score or the ranking and are not investment advice.
Signal history
87.0 / 100
Latest recorded score
↓ -1.0 ptssince the first recorded snapshot on 2026-10-09; 9 calendar days observed
- Recorded snapshots
- 7
- First snapshot
- 2026-10-09
There is not yet a 30-calendar-day comparison; earlier scores are not reconstructed. These are raw signal scores saved when each full scoring run completed. They describe changes in research ranking, not price performance or returns.
Why did it change?
Less than 30 days of comparable history is available, so factor movement is not yet decomposed.
Signal score history
Fixed 0–100 scale; dates are spaced by calendar time.
Recent recorded points
- 88.0
- 87.7
- 87.6
- 87.5
- 87.0
View all recorded scores
| Snapshot date | Signal score |
|---|---|
| 2026-10-09 | 88.0 |
| 2026-10-12 | 87.8 |
| 2026-10-13 | 87.7 |
| 2026-10-14 | 87.6 |
| 2026-10-15 | 87.5 |
| 2026-10-16 | 87.3 |
| 2026-10-18 | 87.0 |
Sector context
- Buying breadth
- 3.7% (24 / 654 issuers)
- Sector rank
- #10 / 13
This is sector-level research context. It does not affect the Insider Signal or ranking.
Insider profile outcomes
Historical performance following insider filings. The company role is translated below each name while preserving the original title.
- Excess return = stock return − S&P 500 ETF (SPY adjusted close) return over the same period.
- Hit rate = completed events with positive excess return ÷ total completed events.
- Price coverage = valid point-in-time prices ÷ events mature enough for that period.
- Returns start on the first shared trading session on or after publication.
- Small-sample rule: n<5 is shown for transparency and is not scored.
Events are disclosure-level observations; related disclosures published on the same date may share a return path and may not be statistically independent. This research enrichment does not affect the insider score or ranking.
| Period | Completed events | Price coverage | Hit rate | Median excess return | Average excess return | Worst excess return |
|---|---|---|---|---|---|---|
| 5D | 2Small sample | 100.0% (2/2) | 0.0% (0/2) | -2.0% | -2.0% | -2.6% |
| 20D | 2Small sample | 100.0% (2/2) | 50.0% (1/2) | +1.9% | +1.9% | -3.4% |
| 60D | 2Small sample | 100.0% (2/2) | 50.0% (1/2) | -1.5% | -1.5% | -6.6% |
| 120D | 2Small sample | 100.0% (2/2) | 50.0% (1/2) | -2.5% | -2.5% | -40.2% |
| Period | Completed events | Price coverage | Hit rate | Median excess return | Average excess return | Worst excess return |
|---|---|---|---|---|---|---|
| 5D | 2Small sample | 100.0% (2/2) | 100.0% (2/2) | +1.5% | +1.5% | +1.0% |
| 20D | 2Small sample | 100.0% (2/2) | 100.0% (2/2) | +11.2% | +11.2% | +10.9% |
| 60D | 2Small sample | 100.0% (2/2) | 100.0% (2/2) | +7.3% | +7.3% | +5.5% |
| 120D | 0No data | Awaiting maturity | — | — | — | — |
Signal outcomes
Calculated from immutable US ranking snapshots; excess return is stock return minus SPY return. Newly saved snapshots remain pending until each forward horizon matures. This never affects the US score.
| Horizon | Status | Result |
|---|---|---|
| 5D | Awaiting maturity | — |
| 20D | Awaiting maturity | — |
| 60D | Awaiting maturity | — |
| 120D | Awaiting maturity | — |
Market context
PRICE PERFORMANCE
VOLATILITY & LIQUIDITY
- Volatility
- 48.3%
- Beta
- 0.77
- Avg daily volume
- $2.9M
VALUATION
- Market cap
- $221.4M
- P/E
- 25.0×
FUNDAMENTALS
- Profit margin
- 3.5%
- ROE
- 3.6%
- Industry
- Specialty Chemicals
Prices to 07 Oct 2026: OpenBB/yfinance. From OpenBB/yfinance, captured 02 Oct 2026: Market cap, P/E, Profit margin, ROE, Beta, Industry. It does not affect the insider score or rank.
Insiders' buying price vs the latest close
The latest close in the price history is more than a week old.
Buying size vs market trading
Complete price and volume history is not yet available.
Market-data coverage: 0 verified sessions · Latest session: — · Ratio status: Unavailable
Traded value is estimated as close × shares traded, in major currency units. Includes disclosed qualifying purchases; disclosures may lag. Contractual or planned acquisitions are not necessarily discretionary. Ratios describe relative trading size, not market participation or score contributions.
Regulatory filings
- Insider filing announcement · published 2026-09-28 · trade date 2026-09-24
- Insider filing announcement · published 2026-09-23 · trade date 2026-09-23
- Insider filing announcement · published 2026-09-18 · trade date 2026-09-16
Unfold all 29 filings
- Insider filing announcement · published 2026-09-28 · trade date 2026-09-24
- Insider filing announcement · published 2026-09-23 · trade date 2026-09-23
- Insider filing announcement · published 2026-09-18 · trade date 2026-09-16
- Insider filing announcement · published 2026-09-04 · trade date 2026-09-02
- Insider filing announcement · published 2026-08-26 · trade date 2026-08-25
- Insider filing announcement · published 2026-08-14 · trade date 2026-08-12
- Insider filing announcement · published 2026-07-31 · trade date 2026-07-29
- Insider filing announcement · published 2026-07-22 · trade date 2026-07-21
- Insider filing announcement · published 2026-07-08 · trade date 2026-07-07
- Insider filing announcement · published 2026-07-02 · trade date 2026-07-02
- Insider filing announcement · published 2026-06-22 · trade date 2026-06-17
- Insider filing announcement · published 2026-06-22 · trade date 2026-06-17
- Insider filing announcement · published 2026-06-22 · trade date 2026-06-17
- Insider filing announcement · published 2026-06-22 · trade date 2026-06-17
- Insider filing announcement · published 2026-05-21 · trade date 2026-05-19
- Insider filing announcement · published 2026-05-21 · trade date 2026-05-13
- Insider filing announcement · published 2026-05-15 · trade date 2026-05-14
- Insider filing announcement · published 2026-05-15 · trade date 2026-05-14
- Insider filing announcement · published 2026-05-15 · trade date 2026-05-14
- Insider filing announcement · published 2026-05-15 · trade date 2026-05-14
- Insider filing announcement · published 2026-05-15 · trade date 2026-05-13
- Insider filing announcement · published 2026-05-15 · trade date 2026-05-13
- Insider filing announcement · published 2026-05-15 · trade date 2026-05-13
- Insider filing announcement · published 2026-04-14 · trade date 2026-04-10
- Insider filing announcement · published 2026-04-14 · trade date 2026-04-10
- Insider filing announcement · published 2026-01-12 · trade date 2026-01-08
- Insider filing announcement · published 2025-12-15 · trade date 2025-12-05
- Insider filing announcement · published 2025-12-09 · trade date 2025-12-05
- Insider filing announcement · published 2025-11-18 · trade date 2025-11-17
Results and insider purchases
| Results (8-K) | Bought within 5 sessions | Bought within 20 sessions | Buyers, 20 sessions before |
|---|---|---|---|
| 2026-08-0516:10 ET · after the closeFirst session 2026-08-06 | 1 · $28.6KHartree Partners, LP | 1 · $609.1KHartree Partners, LP | 1 |
| 2026-05-0616:16 ET · after the closeFirst session 2026-05-07 | 4 · $122.4KParrillo Richard; Sheriff Alan; Gaglione Kenneth | 8 · $209.5KParrillo Richard; Sheriff Alan; Feeler Jeffrey R | 0 |
| 2026-03-0416:15 ET · after the closeFirst session 2026-03-05 | None | None | 0 |
| 2025-11-0516:16 ET · after the closeFirst session 2025-11-06 | None | 1 · $23.8KABBATECOLA VINCENT P | 0 |
Results dates are the company's 8-K filings to the SEC under Item 2.02 (results of operations); one filed after the close counts from the next session. Purchases are open-market buys reported on Form 4 (code P), by trade date; a Form 4 can arrive two business days after the trade, so the latest days can still fill in. Facts only; this does not change the score or rank.
Ownership and trading-plan context
| Direct / indirect ownership | Unavailable |
|---|---|
| 10b5-1 filing evidence | Unavailable |
| Evidence retrieved | Unavailable |
These are accession-level filing fields. Unavailable means the evidence was not fetched or parsed; it is never inferred as “No” and does not adjust the US score.
Filing evidence
These are underlying national-feed records from the 365-day window ending on the saved ranking snapshot. The score uses only the latest 180 days; older qualifying equity purchases remain visible for audit but do not enter the current score. The original filer, role, transaction classification, instrument, price, volume, value and source fields are retained. The first three rows are shown; remaining records can be unfolded for audit. Other transaction types are retained but excluded from the score.
Excluded transactions & classification
20 qualifying purchase disclosure(s) · 28 transaction line(s)
Nov 17, 2025Open market purchase
ABBATECOLA VINCENT P · Director
Common Stock · 3500.0 shares × 6.79 USD · 23765.0 USD
Open filingMay 19, 2026Open market purchase
Bertaux Brian J. · Chief Financial Officer
Common Stock · 2000.0 shares × 4.87 USD · 9740.0 USD
Open filingMay 14, 2026Open market purchase
Mansy Loan Nguyen · Director
Common Stock · 1400.0 shares × 4.97 USD · 6958.0 USD
Open filingUnfold all 25 remaining filing row(s)
| Transaction date | Published | Filer | Role | Transaction | Instrument | Price (local currency) | Quote currency | Volume | Reported value (local currency) | Source |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-05-14 | 2026-05-15 | Mansy Loan Nguyen | Director | Open market purchase | Common Stock | 4.96 USD | USD | 3600.0 | 17856.0 USD | Open filing |
| 2026-05-14 | 2026-05-15 | Parrillo Richard | Director | Open market purchase | Common Stock | 4.96 USD | USD | 3600.0 | 17856.0 USD | Open filing |
| 2026-05-14 | 2026-05-15 | Parrillo Richard | Director | Open market purchase | Common Stock | 4.97 USD | USD | 1400.0 | 6958.0 USD | Open filing |
| 2026-05-14 | 2026-05-15 | Bulgarino Nicole E | Director | Open market purchase | Common Stock | 4.85 USD | USD | 550.0 | 2667.5 USD | Open filing |
| 2026-05-14 | 2026-05-15 | Feeler Jeffrey R | Director | Open market purchase | Common Stock | 4.92 USD | USD | 5100.0 | 25092.0 USD | Open filing |
| 2026-05-13 | 2026-05-21 | Parrillo Richard | Director | Open market purchase | Common Stock | 4.83 USD | USD | 10000.0 | 48300.0 USD | Open filing |
| 2026-05-13 | 2026-05-15 | Prouty Eric A | Director | Open market purchase | Common Stock | 4.84 USD | USD | 5000.0 | 24200.0 USD | Open filing |
| 2026-05-13 | 2026-05-15 | Sheriff Alan | Director | Open market purchase | Common Stock | 4.88 USD | USD | 5200.0 | 25376.0 USD | Open filing |
| 2026-05-13 | 2026-05-15 | Gaglione Kenneth | President and CEO | Open market purchase | Common Stock | 4.9 USD | USD | 5000.0 | 24500.0 USD | Open filing |
| 2026-09-24 | 2026-09-28 | Hartree Partners, LP | TenPercentOwner | Open market purchase | Common Stock, par value $0.01 | 5.1 USD | USD | 118549.0 | 604599.8999999999 USD | Open filing |
| 2026-09-23 | 2026-09-23 | Hartree Partners, LP | TenPercentOwner | Open market purchase | Common Stock, par value $0.01 | 5.1 USD | USD | 11013.0 | 56166.299999999996 USD | Open filing |
| 2026-09-21 | 2026-09-23 | Hartree Partners, LP | TenPercentOwner | Open market purchase | Common Stock, par value $0.01 | 5.1 USD | USD | 2502.0 | 12760.199999999999 USD | Open filing |
| 2026-09-16 | 2026-09-18 | Hartree Partners, LP | TenPercentOwner | Open market purchase | Common Stock, par value $0.01 | 5.1 USD | USD | 11136.0 | 56793.6 USD | Open filing |
| 2026-09-02 | 2026-09-04 | Hartree Partners, LP | TenPercentOwner | Open market purchase | Common Stock, par value $0.01 | 5.1 USD | USD | 5317.0 | 27116.699999999997 USD | Open filing |
| 2026-08-25 | 2026-08-26 | Hartree Partners, LP | TenPercentOwner | Open market purchase | Common Stock, par value $0.01 | 5.5 USD | USD | 91166.0 | 501413.0 USD | Open filing |
| 2026-08-24 | 2026-08-26 | Hartree Partners, LP | TenPercentOwner | Open market purchase | Common Stock, par value $0.01 | 5.5 USD | USD | 9446.0 | 51953.0 USD | Open filing |
| 2026-08-12 | 2026-08-14 | Hartree Partners, LP | TenPercentOwner | Open market purchase | Common Stock, par value $0.01 | 5.5 USD | USD | 5198.0 | 28589.0 USD | Open filing |
| 2026-07-29 | 2026-07-31 | Hartree Partners, LP | TenPercentOwner | Open market purchase | Common Stock, par value $0.01 | 5.99 USD | USD | 52104.0 | 312102.96 USD | Open filing |
| 2026-07-21 | 2026-07-22 | Hartree Partners, LP | TenPercentOwner | Open market purchase | Common Stock, par value $0.01 | 5.99 USD | USD | 47708.0 | 285770.92 USD | Open filing |
| 2026-07-20 | 2026-07-22 | Hartree Partners, LP | TenPercentOwner | Open market purchase | Common Stock, par value $0.01 | 5.99 USD | USD | 17842.0 | 106873.58 USD | Open filing |
| 2026-07-07 | 2026-07-08 | Hartree Partners, LP | TenPercentOwner | Open market purchase | Common Stock, par value $0.01 | 5.99 USD | USD | 600.0 | 3594.0 USD | Open filing |
| 2026-07-06 | 2026-07-08 | Hartree Partners, LP | TenPercentOwner | Open market purchase | Common Stock, par value $0.01 | 5.99 USD | USD | 4634.0 | 27757.66 USD | Open filing |
| 2026-07-02 | 2026-07-02 | Hartree Partners, LP | TenPercentOwner | Open market purchase | Common Stock, par value $0.01 | 5.97 USD | USD | 271302.0 | 1619672.94 USD | Open filing |
| 2026-07-01 | 2026-07-02 | Hartree Partners, LP | TenPercentOwner | Open market purchase | Common Stock, par value $0.01 | 5.88 USD | USD | 288111.0 | 1694092.68 USD | Open filing |
| 2026-06-30 | 2026-07-02 | Hartree Partners, LP | TenPercentOwner | Open market purchase | Common Stock, par value $0.01 | 5.68 USD | USD | 204789.0 | 1163201.52 USD | Open filing |
Showing 28 of 28 matching raw-feed row(s) from the current 365-day research window. Prices and reported values remain in the filing currency and its major unit (for example, UK pence are parsed as GBP). The screen-level $ aggregate is separately FX-normalised for research ranking, not a trade-date conversion.
Other disclosed transactions · excluded from score
View 14 other transaction(s)
Dec 5, 2025Open market sale
COLEMAN BRIAN F · Other
Common Stock · 484616.0 shares × 7.4 USD · 3586158.4000000004 USD
Open filingDec 5, 2025Open market sale
COLEMAN BRIAN F · Director
Common Stock · 484616.0 shares × 7.4 USD · 3586158.4000000004 USD
Open filingJan 8, 2026Shares withheld for tax or exercise price
Houghton Kathleen · Sr. VP-Sales and Marketing
Common Stock · 34382.0 shares × 7.1 USD · 244112.19999999998 USD
Open filingUnfold all 11 remaining filing row(s)
| Transaction date | Published | Filer | Role | Transaction | Instrument | Price (local currency) | Quote currency | Volume | Reported value (local currency) | Source |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-01-08 | 2026-01-12 | Houghton Kathleen | Sr. VP-Sales and Marketing | Exercise of derivative security | Common Stock | 3.81 USD | USD | 50888.0 | 193883.28 USD | Open filing |
| 2026-01-08 | 2026-01-12 | Houghton Kathleen | Sr. VP-Sales and Marketing | Exercise of derivative security | Common Stock | 1.6 USD | USD | 47619.0 | 76190.40000000001 USD | Open filing |
| 2026-01-08 | 2026-01-12 | Houghton Kathleen | Sr. VP-Sales and Marketing | Shares withheld for tax or exercise price | Common Stock | 7.1 USD | USD | 44873.0 | 318598.3 USD | Open filing |
| 2026-01-08 | 2026-01-12 | Houghton Kathleen | Sr. VP-Sales and Marketing | Exercise of derivative security | Common Stock | 0.75 USD | USD | 120000.0 | 90000.0 USD | Open filing |
| 2026-01-08 | 2026-01-12 | Houghton Kathleen | Sr. VP-Sales and Marketing | Shares withheld for tax or exercise price | Common Stock | 7.1 USD | USD | 21797.0 | 154758.69999999998 USD | Open filing |
| 2026-06-17 | 2026-06-22 | Sheriff Alan | Director | Grant or award | Common Stock | 0.0 USD | USD | 3219.0 | 0.0 USD | Open filing |
| 2026-06-17 | 2026-06-22 | Prouty Eric A | Director | Grant or award | Common Stock | 0.0 USD | USD | 4440.0 | 0.0 USD | Open filing |
| 2026-06-17 | 2026-06-22 | Mansy Loan Nguyen | Director | Grant or award | Common Stock | 0.0 USD | USD | 8881.0 | 0.0 USD | Open filing |
| 2026-06-17 | 2026-06-22 | Feeler Jeffrey R | Director | Grant or award | Common Stock | 0.0 USD | USD | 3219.0 | 0.0 USD | Open filing |
| 2026-04-10 | 2026-04-14 | Sheriff Alan | Director | Grant or award | Common Stock | 0.0 USD | USD | 4065.0 | 0.0 USD | Open filing |
| 2026-04-10 | 2026-04-14 | Feeler Jeffrey R | Director | Grant or award | Common Stock | 0.0 USD | USD | 4065.0 | 0.0 USD | Open filing |
Showing 14 of 14 matching raw-feed row(s) from the current 365-day research window. Prices and reported values remain in the filing currency and its major unit (for example, UK pence are parsed as GBP). The screen-level $ aggregate is separately FX-normalised for research ranking, not a trade-date conversion.
Snapshot & identity
- Snapshot date
- 2026-10-18
- Ticker
- HDSN
- ISIN
- —
- Sector
- Industrials
- Industry
- —
Company logos by Parqet
How to read Form 4 transaction codes
| Code | Interpretation | Screen treatment |
|---|---|---|
| P | Open-market / private purchase | Buy evidence when the security is qualifying equity |
| S | Sale | Sell evidence when the security is qualifying equity |
| A | Grant / award | Context only |
| F | Tax-related withholding | Context only |
| M | Option exercise | Context only |
| G | Gift | Context only |
| J / L | Other / non-directional | Context only |
P/S rows for options, warrants, compensation units and debt remain visible for audit but are excluded from equity scores and quotes.