Insider Tracker SEC Form 4 insider trades
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INFU

InfuSystem Holdings, Inc

Healthcare Surgical & Medical Instruments & Apparatus Market cap: $273.7M All insider activity → Quote and statistics → Sign in to watch INFU Sign in to set a price alert
42
Insider Score Band below 60

AI score not needed: the AI review runs from a match score of 55.

Research score, not a recommendation.

Total bought$964.8K25 Form 4 purchases
Distinct insiders3open-market buyers
Lead insiderSansone Christopher R.Director
Cluster window2018-05-10 → 2018-07-03closed

Market data

Live quote and chart from Yahoo Finance, loaded through this server. Insider purchases are marked on the chart.

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Why this score

Research score: a weighted blend of the five factors, times the routine and offering discounts, minus the selling penalty.

Breadth number & diversity of participating insiders
37%
Seniority executive rank of buyers (CEO/CFO/Director)
55%
Commitment purchase size relative to company & holdings
78%
Context buying into stock weakness signals conviction
9%
Timing coordinated purchases within a tight window
53%
Routine-purchase discount × 1.00
Company-type / offering discount × 1.00
Net insider selling penalty − 6

Why are they buying?

AI score not needed: the AI review runs only on clusters with a match score of 55 or more. The filings in the table below are the primary evidence.

Stock Price & Insider Purchase History

Daily close price with open-market insider purchases plotted over time

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Transactions

25 Form 4 trades · 3 insiders Sign in to download CSV
Purchases in this cluster, grouped by insider, largest first
Date Insider Role Shares Price Value Filing
2018-05-10 → 2018-06-14 BlueLine Partners, L.L.C. 20 purchases with a 63-day result · median +11.5% 10% owner 214,515 $3.03 avg $649.4K
2018-05-10 BlueLine Partners, L.L.C. 8,493 $2.60 $22.1K SEC filing for BlueLine Partners, L.L.C. (opens in a new tab)
2018-05-14 BlueLine Partners, L.L.C. 30,000 $2.80 $84.0K SEC filing for BlueLine Partners, L.L.C. (opens in a new tab)
2018-05-14 BlueLine Partners, L.L.C. 2,055 $2.79 $5.7K SEC filing for BlueLine Partners, L.L.C. (opens in a new tab)
2018-05-17 BlueLine Partners, L.L.C. 5,000 $2.90 $14.5K SEC filing for BlueLine Partners, L.L.C. (opens in a new tab)
2018-05-18 BlueLine Partners, L.L.C. 841 $2.85 $2.4K SEC filing for BlueLine Partners, L.L.C. (opens in a new tab)
2018-05-18 BlueLine Partners, L.L.C. 944 $2.85 $2.7K SEC filing for BlueLine Partners, L.L.C. (opens in a new tab)
2018-05-22 BlueLine Partners, L.L.C. 5,000 $3.00 $15.0K SEC filing for BlueLine Partners, L.L.C. (opens in a new tab)
2018-06-12 BlueLine Partners, L.L.C. 10,000 $3.15 $31.5K SEC filing for BlueLine Partners, L.L.C. (opens in a new tab)
2018-06-12 BlueLine Partners, L.L.C. 162 $3.00 $486 SEC filing for BlueLine Partners, L.L.C. (opens in a new tab)
2018-06-12 BlueLine Partners, L.L.C. 5,000 $3.05 $15.2K SEC filing for BlueLine Partners, L.L.C. (opens in a new tab)
2018-06-14 BlueLine Partners, L.L.C. 132,020 $3.10 $409.3K SEC filing for BlueLine Partners, L.L.C. (opens in a new tab)
2018-06-14 BlueLine Partners, L.L.C. 15,000 $3.10 $46.5K SEC filing for BlueLine Partners, L.L.C. (opens in a new tab)
2018-05-14 → 2018-05-21 Sansone Christopher R. 12 purchases with a 63-day result · median +4.4% Director 103,502 $2.85 avg $294.6K
2018-05-14 Sansone Christopher R. 7,166 $2.80 $20.1K SEC filing for Sansone Christopher R. (opens in a new tab)
2018-05-14 Sansone Christopher R. 1,433 $2.80 $4.0K SEC filing for Sansone Christopher R. (opens in a new tab)
2018-05-15 Sansone Christopher R. 15,322 $2.85 $43.7K SEC filing for Sansone Christopher R. (opens in a new tab)
2018-05-15 Sansone Christopher R. 3,064 $2.85 $8.7K SEC filing for Sansone Christopher R. (opens in a new tab)
2018-05-16 Sansone Christopher R. 51,729 $2.85 $147.4K SEC filing for Sansone Christopher R. (opens in a new tab)
2018-05-16 Sansone Christopher R. 10,346 $2.85 $29.5K SEC filing for Sansone Christopher R. (opens in a new tab)
2018-05-17 Sansone Christopher R. 2,257 $2.85 $6.4K SEC filing for Sansone Christopher R. (opens in a new tab)
2018-05-17 Sansone Christopher R. 11,285 $2.85 $32.2K SEC filing for Sansone Christopher R. (opens in a new tab)
2018-05-18 Sansone Christopher R. 117 $2.85 $333 SEC filing for Sansone Christopher R. (opens in a new tab)
2018-05-18 Sansone Christopher R. 583 $2.85 $1.7K SEC filing for Sansone Christopher R. (opens in a new tab)
2018-05-21 Sansone Christopher R. 33 $2.85 $94 SEC filing for Sansone Christopher R. (opens in a new tab)
2018-05-21 Sansone Christopher R. 167 $2.85 $476 SEC filing for Sansone Christopher R. (opens in a new tab)
2018-07-03 Lehman Gregg Owen history of Lehman Gregg Owen's purchases Director 5,946 $3.50 $20.8K SEC filing for Lehman Gregg Owen (opens in a new tab)
Total $964.8K

Other buying runs at INFU

A run ends after a pause in the buying, so one company can have several. Returns are the stock's return minus its benchmark's (IWM for small companies, SPY otherwise), from the first open after the run became a cluster. Past results, not a forecast.

After this run became a cluster: 21 days -7.6%63 days -7.3%126 days +11.5%

Other insider buying runs at this company, newest first, with the return against the benchmark that followed
Window Insiders Total Score 21 days63 days126 days Status
2026-05-08 → 2026-05-11 3 $131.5K 61 +7.0%+43.4%– active
2025-05-14 → 2025-05-28 4 $77.1K 44 +0.1%+50.2%+40.8% closed
2024-05-20 → 2024-05-23 6 $123.2K 52 +3.8%-11.1%+23.1% closed
2023-03-17 → 2023-03-21 3 $64.2K 52 +17.3%+23.6%+31.1% closed
2020-03-23 → 2020-03-31 3 $68.6K 49 +30.3%+12.5%+33.3% closed
2019-08-09 → 2019-09-06 3 $392.6K 40 +27.9%+43.1%+76.0% closed
2019-03-11 → 2019-03-20 3 $174.5K 48 -9.9%-2.5%+14.2% closed
2018-08-20 → 2018-09-14 3 $540.9K 39 +3.7%+19.4%+37.1% closed
2017-08-14 → 2017-09-11 4 $299.0K 44 +11.9%+1.9%+9.8% closed