COMPANY RESEARCH
InfuSystem Holdings, Inc
INFU · United States · Healthcare
INSIDER SIGNAL
Insider activity score：53.3 / 100
3 insiders · 4 purchase events · $131k net purchases
US #509 · United States #509
WHY THIS SIGNAL?
Score anatomy
Each bar shows the contribution to the current score; the weights and formula stay unchanged.
Cluster+21.0 / 35
How many distinct insiders bought in the cluster
Purchase size+8.6 / 25
Purchase value relative to company size and liquidity
Role+7.0 / 20
The seniority and relevance of participating insiders
Recency+0.7 / 10
How recently the purchases occurred
Conviction+10.0 / 10
How clearly buying stands out from other activity
What is holding the score back?
- ⚠ Buyer breadth is moderate · fewer than 4 distinct filers
- ⚠ Purchase size is modest relative to the model scale
- ⚠ Insider role contributes less on the current role scale
- ⚠ Purchase activity is becoming less recent
The role contribution follows the US model's seniority ladder.
Buying concentration
46%
Largest buyer：Steele Barry G · 61k USD
Gross qualified purchase transaction-line value：131k 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 |
|---|---|---|
| Lachance Carrie | 8.46 USD | May 11, 2026 |
| Steele Barry G | 8.71 USD | May 8, 2026 |
| GENDRON PAUL ANDREW | 8.88 USD | May 8, 2026 |
Model details
Cluster breakdown (does not change the score)
- 15-day buyer breadth (count)
- 3 distinct reported filers
- Peak time window
- 2026-05-08 to 2026-05-11
- Current breadth input
- 0.600 (capped at 4+ buyers)
- Buyer independence
- Not yet measured; related-party fields are not cross-market comparable
What the filings show
- 🟢 Recent eligible purchase
Lachance Carrie · 8k USD · Price 8.46 USD · May 11, 2026 - 🟢 PDMR purchase
Steele Barry G · 61k USD · Price 8.71 USD · May 8, 2026 - 🟢 PDMR purchase
GENDRON PAUL ANDREW · 44k USD · Price 8.88 USD · May 8, 2026 - 🟡 1 remaining qualified transaction line(s) across 1 disclosure(s)
- 🔴 25 other transaction line(s) are not counted as discretionary-buying evidence; 13 have zero price
Insider vs stock price
2 purchase day(s), 4 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 |
|---|---|---|---|---|
| 2026-05-12 | 3 | 1,612 +61.2% | 919 −8.1% | +694 +69.4 pts |
1 of 1 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 (1046 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
3 insiders bought within 4 days, 8 May to 11 May: 1 Board member, 1 CEO / chair, 1 CFO. The share closed at 8.41 on the first of those days and at 13.56 most recently (+61.2%). That week 151 companies across United States disclosed insider purchases, an ordinary week (12 of the last 26).
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 8 May – 11 May, with 3 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, +31.7% over these six months
The closing price of each day, from 10.30 on 2026-04-21 to 13.56 on 2026-10-09. 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, −11.1%
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 +31.7%, the typical one −11.1%, 42.8 points ahead. 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: 151 companies, number 12 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
Nov
Dec
Jan
Feb
1Mar
Apr
3May
Jun
Jul
Aug
Sep
Oct
Darker bars are inside the 180-day window above.
Who traded
| Insider | Role | Purchases | Sales | Bought | First purchase | Share price since |
|---|---|---|---|---|---|---|
| Lachance Carrie | CEO / chair | 2 | — | 26.1k USD | 2026-05-08 | +61.2% |
| Steele Barry G | CFO | 1 | — | 61.0k USD | 2026-05-08 | +61.2% |
| GENDRON PAUL ANDREW | Board member | 1 | — | 44.4k USD | 2026-05-08 | +61.2% |
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% | 0.600 | 21.0 |
| Qualified-buy size | 25% | 0.345 | 8.6 |
| Role informativeness (inverted) | 20% | 0.650 | 13.0 |
| Recency | 10% | 0.069 | 0.7 |
| 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); share price and trading, short sellers were checked and none crosses a bear threshold. No data is held for: company results, company actions.
- The insider purchases themselvesBullseveral insiders together, more buyers than usual here Bearlatest purchase is old6 checked, under the threshold · 1 missing
- Share price and trading2 checked, under the threshold
- Short sellers2 checked, under the threshold
- Company results2 missing
- Company actionsno data held
Bull case · the buying is informative
- 3 insiders bought within 15 days (2026-05-08 to 2026-05-11). Several people reaching the same decision at the same time is hard to put down to one person's circumstances.
- 3 insiders bought in the last 180 days against 1 in the 180 days before: more than this company's own recent norm.
Bear case · discount it
- The latest purchase was 160 days ago (2026-05-11). A reporting period has passed since, so what the buyers knew then may already be public.
Evidence still missing
- No buyer here has 5 or more completed earlier purchases on record, so there is no track record to weigh.
- The company's market value is not captured, so the purchases cannot be stated as a share of the business or of its trading volume.
- No earnings, margin or cash-flow figures are captured for this company. The latest annual and interim reports are where to check whether the business is improving or deteriorating.
Checked and under the threshold: 10
- BearThe largest buyer accounts for 46% of the value bought. Counted for the bear side from 80%.
- EitherNet purchases of $131k in 180 days. Bull from $1.0M, bear when all purchases total under $25k.
- BearNo insider sale is recorded in the same 180 days.
- BearThe share price changed +45% over six months (three months +46%, one month +12%) and stands 2.1% below its 52-week high. Counted for the bear side from a fall of 20%.
- BearOver three months the share price changed +46% and the median of 219 Healthcare companies changed −12%: ahead by 58 points. Counted for the bear side from 20 points behind.
- BearNone of the 3 purchase filings ticks Form 4's 10b5-1 box.
- BearOver the last 5 trading days to 2026-10-16, 50% of this stock's off-exchange volume was sold short; over the 60 days before, 50%. 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.
- Bull3 of 3 purchase filings state the shares held before and after. The largest addition to an existing holding took it from 89,590 to 96,590 shares (+7.8%). Counted for the bull side from +100%, for the bear side below +1%.
- BearNo insider filing in the last 180 days opened a hedge on this stock.
- BearFINRA short interest on 2026-09-30 equals 5.2 days of average trading volume and 4.3% of the 19,917,181 shares outstanding, up 6.4% from the previous report. Counted for the bear side from 10 days, or from 10% of the shares outstanding.
Both columns arrange stored facts only. They do not change the insider score or the ranking and are not investment advice.
Signal history
53.3 / 100
Latest recorded score
↓ -7.1 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
- 60.4
- 53.4
- 53.3
- 53.3
- 53.3
View all recorded scores
| Snapshot date | Signal score |
|---|---|
| 2026-10-09 | 60.4 |
| 2026-10-12 | 53.5 |
| 2026-10-13 | 53.4 |
| 2026-10-14 | 53.3 |
| 2026-10-15 | 53.3 |
| 2026-10-16 | 53.3 |
| 2026-10-18 | 53.3 |
Sector context
- Buying breadth
- 4.1% (42 / 1,029 issuers)
- Sector rank
- #8 / 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.
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
- 58.3%
- Beta
- —
- Avg daily volume
- $1.9M
VALUATION
- Market cap
- —
- P/E
- —
FUNDAMENTALS
- Profit margin
- —
- ROE
- —
- Industry
- —
Prices to 11 Oct 2026: OpenBB/yfinance; volume from price cache (yfinance). 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 2026-10-13 · trade date 2026-10-09
- Insider filing announcement · published 2026-09-11 · trade date 2026-09-10
- Insider filing announcement · published 2026-05-19 · trade date 2026-05-18
Unfold all 10 filings
- Insider filing announcement · published 2026-10-13 · trade date 2026-10-09
- Insider filing announcement · published 2026-09-11 · trade date 2026-09-10
- Insider filing announcement · published 2026-05-19 · trade date 2026-05-18
- Insider filing announcement · published 2026-05-19 · trade date 2026-05-18
- Insider filing announcement · published 2026-05-19 · trade date 2026-05-18
- Insider filing announcement · published 2026-05-19 · trade date 2026-05-17
- Insider filing announcement · published 2026-05-12 · trade date 2026-05-11
- Insider filing announcement · published 2026-05-12 · trade date 2026-05-08
- Insider filing announcement · published 2026-05-12 · trade date 2026-05-08
- Insider filing announcement · published 2026-03-02 · trade date 2026-03-02
Results and insider purchases
| Results (8-K) | Bought within 5 sessions | Bought within 20 sessions | Buyers, 20 sessions before |
|---|---|---|---|
| 2026-08-0406:31 ET · before the open | None | None | 0 |
| 2026-05-0706:41 ET · before the open | 3 · $131.5KSteele Barry G; GENDRON PAUL ANDREW; Lachance Carrie | 3 · $131.5KSteele Barry G; GENDRON PAUL ANDREW; Lachance Carrie | 0 |
| 2026-02-2406:30 ET · before the open | 1 · $18.9KSteele Barry G | 1 · $18.9KSteele Barry G | 0 |
| 2025-11-0406:28 ET · before the open | None | None | 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 | Direct |
|---|---|
| 10b5-1 filing evidence | Not declared in filing field |
| Evidence retrieved | 2026-10-14T22:27:11+00:00 |
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
4 qualifying purchase disclosure(s) · 5 transaction line(s)
Mar 2, 2026Open market purchase
Steele Barry G · Executive VP and CFO
Common Stock · 2064.0 shares × 9.16 USD · 18906.24 USD
Open filingMay 11, 2026Open market purchase
Lachance Carrie · President and CEO
Common Stock · 1000.0 shares × 8.46 USD · 8460.0 USD
Open filingMay 8, 2026Open market purchase
GENDRON PAUL ANDREW · Director
Common Stock · 5000.0 shares × 8.88 USD · 44400.00000000001 USD
Open filingUnfold all 2 remaining filing row(s)
| Transaction date | Published | Filer | Role | Transaction | Instrument | Price (local currency) | Quote currency | Volume | Reported value (local currency) | Source |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-05-08 | 2026-05-12 | Lachance Carrie | President and CEO | Open market purchase | Common Stock | 8.83 USD | USD | 2000.0 | 17660.0 USD | Open filing |
| 2026-05-08 | 2026-05-12 | Steele Barry G | Executive VP and CFO | Open market purchase | Common Stock | 8.71 USD | USD | 7000.0 | 60970.00000000001 USD | Open filing |
Showing 5 of 5 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 25 other transaction(s)
May 18, 2026Shares withheld for tax or exercise price
Steele Barry G · Executive VP and CFO
Common Stock · 3800.0 shares × 8.9 USD · 33820.0 USD
Open filingMay 18, 2026Exercise of derivative security
Steele Barry G · Executive VP and CFO
Common Stock · 8715.0 shares × 0.0 USD · 0.0 USD
Open filingMay 18, 2026Exercise of derivative security
Lachance Carrie · President and CEO
Common Stock · 8932.0 shares × 0.0 USD · 0.0 USD
Open filingUnfold all 22 remaining filing row(s)
| Transaction date | Published | Filer | Role | Transaction | Instrument | Price (local currency) | Quote currency | Volume | Reported value (local currency) | Source |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-05-18 | 2026-05-19 | Lachance Carrie | President and CEO | Shares withheld for tax or exercise price | Common Stock | 8.9 USD | USD | 3515.0 | 31283.5 USD | Open filing |
| 2026-05-18 | 2026-05-19 | Chupa Addam | Executive VP and CIO | Exercise of derivative security | Common Stock | 0.0 USD | USD | 5447.0 | 0.0 USD | Open filing |
| 2026-05-18 | 2026-05-19 | Chupa Addam | Executive VP and CIO | Shares withheld for tax or exercise price | Common Stock | 8.9 USD | USD | 1994.0 | 17746.600000000002 USD | Open filing |
| 2026-05-17 | 2026-05-19 | Steele Barry G | Executive VP and CFO | Grant or award | Common Stock | 0.0 USD | USD | 21323.0 | 0.0 USD | Open filing |
| 2026-05-17 | 2026-05-19 | Steele Barry G | Executive VP and CFO | Shares withheld for tax or exercise price | Common Stock | 8.77 USD | USD | 9297.0 | 81534.69 USD | Open filing |
| 2026-05-17 | 2026-05-19 | Funke Jerod | EVP-Chief HR Officer | Grant or award | Common Stock | 0.0 USD | USD | 14570.0 | 0.0 USD | Open filing |
| 2026-05-17 | 2026-05-19 | Funke Jerod | EVP-Chief HR Officer | Shares withheld for tax or exercise price | Common Stock | 8.77 USD | USD | 6462.0 | 56671.74 USD | Open filing |
| 2026-05-17 | 2026-05-19 | Lachance Carrie | President and CEO | Grant or award | Common Stock | 0.0 USD | USD | 21855.0 | 0.0 USD | Open filing |
| 2026-05-17 | 2026-05-19 | Lachance Carrie | President and CEO | Shares withheld for tax or exercise price | Common Stock | 8.77 USD | USD | 5322.0 | 46673.939999999995 USD | Open filing |
| 2026-05-17 | 2026-05-19 | Chupa Addam | Executive VP and CIO | Shares withheld for tax or exercise price | Common Stock | 8.77 USD | USD | 4460.0 | 39114.2 USD | Open filing |
| 2026-05-17 | 2026-05-19 | Chupa Addam | Executive VP and CIO | Grant or award | Common Stock | 0.0 USD | USD | 12184.0 | 0.0 USD | Open filing |
| 2026-05-16 | 2026-05-19 | Steele Barry G | Executive VP and CFO | Shares withheld for tax or exercise price | Common Stock | 8.77 USD | USD | 3275.0 | 28721.75 USD | Open filing |
| 2026-05-16 | 2026-05-19 | Steele Barry G | Executive VP and CFO | Exercise of derivative security | Common Stock | 0.0 USD | USD | 7511.0 | 0.0 USD | Open filing |
| 2026-05-16 | 2026-05-19 | Funke Jerod | EVP-Chief HR Officer | Exercise of derivative security | Common Stock | 0.0 USD | USD | 5183.0 | 0.0 USD | Open filing |
| 2026-05-16 | 2026-05-19 | Funke Jerod | EVP-Chief HR Officer | Shares withheld for tax or exercise price | Common Stock | 8.77 USD | USD | 2299.0 | 20162.23 USD | Open filing |
| 2026-05-16 | 2026-05-19 | Lachance Carrie | President and CEO | Exercise of derivative security | Common Stock | 0.0 USD | USD | 10418.0 | 0.0 USD | Open filing |
| 2026-05-16 | 2026-05-19 | Lachance Carrie | President and CEO | Shares withheld for tax or exercise price | Common Stock | 8.77 USD | USD | 4100.0 | 35957.0 USD | Open filing |
| 2026-05-16 | 2026-05-19 | Chupa Addam | Executive VP and CIO | Exercise of derivative security | Common Stock | 0.0 USD | USD | 4375.0 | 0.0 USD | Open filing |
| 2026-05-16 | 2026-05-19 | Chupa Addam | Executive VP and CIO | Shares withheld for tax or exercise price | Common Stock | 8.77 USD | USD | 1602.0 | 14049.539999999999 USD | Open filing |
| 2026-09-10 | 2026-09-11 | Shuda Scott | Director | Other acquisition or disposition | Common Stock | 0.0 USD | USD | 20000.0 | 0.0 USD | Open filing |
| 2026-10-09 | 2026-10-13 | Funke Jerod | EVP-Chief HR Officer | Exercise of derivative security | Common Stock | 0.0 USD | USD | 7157 | 0.0 USD | Open filing |
| 2026-10-09 | 2026-10-13 | Funke Jerod | EVP-Chief HR Officer | Shares withheld for tax or exercise price | Common Stock | 13.56 USD | USD | 2101 | 28489.56 USD | Open filing |
Showing 25 of 25 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
- INFU
- ISIN
- —
- Sector
- Healthcare
- 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.