Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

KORU Medical Systems, Inc.

KRMD · Nasdaq · CIK 0000704440 · Healthcare · Medical Instruments & Supplies

INSIDER SIGNAL

73.8 / 100

5 buyers · 9 purchase transaction lines · $215.3K gross purchase

WHY THIS SIGNAL?

Buyer breadthStrong
Purchase sizeLow
RoleModerate
RecencyModerate
ConvictionStrong
Score anatomy

Each bar shows the contribution to the current score; the weights and formula stay unchanged.

Cluster+35.0 / 35
Purchase size+10.7 / 25
Role+13.0 / 20
Recency+5.1 / 10
Conviction+10.0 / 10

What is holding the score back?

  • ⚠ Purchase size is modest relative to the model scale
  • ⚠ Role scores low · most senior buyer: President-Chief Commercial Off (CEO, chair and 10% owners score lowest)
  • ✓ Cluster breadth is broad · 4+ insiders

Purchase-size comments are relative to the model scale. Average daily volume is a separate market-context diagnostic.

US-v1.2 ranks qualifying equity purchases under the current 180-day rules. The score is a research priority, not a return forecast or probability. Backtests have not shown that a higher US score is followed by better returns.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
KALBERMATTEN ADAM RChief Commercial Officer
●●○○●
Tharby Linda MChief Executive Officer
○○●●
Pazdan ChristopherChief Operating Officer
○○●
Adams Thomas EdwardChief Financial Officer
○○●
FLETCHER R JOHNDirector,Other
○○
CASCELLA ROBERTDirector
○○
● Purchase▼ Sale○ Other

Showing the six most active owners; 5 additional owner(s) remain in Form 4 evidence.

Purchase breadth & concentration

QUALIFYING BUYERS5
PURCHASE CONCENTRATION87%Largest buyer: Tharby Linda M · $1.4M
CLUSTER BUYING · 15D4 insidersPeak activity: 2026-05-14–2026-05-18

Roles in the peak window: Chief Executive Officer, Chief Financial Officer, Chief Operating Officer, Chief Technology Officer. Concentration uses priced qualifying P lines only and does not change the saved score.

SIGNAL HISTORY

73.8 / 100

Latest recorded score

↓ -0.2 ptsversus the previous recorded snapshot
  1. 74.4
  2. 74.3
  3. 74.1
  4. 74.0
  5. 73.8

Only scores saved when a full US scoring run completed are shown; gaps are not reconstructed.

Recent Form 4 activity

9Purchases
0Sales
43Other Form 4 lines
40SEC filings · 365 days
BUYING9 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER20 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot detected in parsed evidence

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context provides additional background on recent price performance and risk. It does not affect the Insider Signal.

Price performance

1M
-6.0%
3M
-30.0%
6M
-29.7%
12M
-29.4%

Volatility & liquidity

Volatility
58.4%
Beta
—
Avg daily value
USD 707,755

Valuation

Market cap
USD 136.7M
P/E
—

Fundamentals

Profit margin
-6.4%
ROE
-15.5%
Industry
Medical Instruments & Supplies

Market data

Price data up to: 2026-10-11 · Price source: OpenBB/yfinance; volume from price cache (yfinance) · From SEC filings: Market cap, Profit margin, ROE · Fiscal year ended: 2025-12-31 · Market cap is the shares outstanding stated on the filing cover multiplied by the latest close. Share count date: 2026-08-05 · Status: PASS

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
907,388
Previous report
984,588
Avg daily volume
356,634
Days to cover
2.5

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-08KALBERMATTEN ADAM RPurchase (P)Common Stock32,000USD 3.16USD 101,120SEC filing ↗
2026-06-11KALBERMATTEN ADAM RPurchase (P)Common Stock5,000USD 3.96USD 19,800SEC filing ↗
2026-06-11KALBERMATTEN ADAM RPurchase (P)Common Stick7,500USD 3.93USD 29,475SEC filing ↗
2026-05-18Schiller EricPurchase (P)Common Stock5,000USD 3.91USD 19,550SEC filing ↗
2026-05-15Tharby Linda MPurchase (P)Common Stock1,191USD 3.92USD 4,669SEC filing ↗
2026-05-15Tharby Linda MPurchase (P)Common Stock1,191USD 1,191.00USD 1,418,481SEC filing ↗
2026-05-14Pazdan ChristopherPurchase (P)Common Stock5,000USD 3.88USD 19,400SEC filing ↗
2026-05-14Adams Thomas EdwardPurchase (P)Common Stock5,500USD 3.86USD 21,248SEC filing ↗
2023-12-13Manko Joseph M. Jr.Purchase (P)Common Stock145,833USD 2.40USD 349,999SEC filing ↗
2023-08-21Horton Capital Management, LLC; Horton Capital Partners Fund, L.P.; Horton Capital Partners, LLC; Horton Freedom, L.P.; Manko Joseph M. Jr.Purchase (P)Common Stock10,000USD 2.65USD 26,500SEC filing ↗
2023-08-18Tharby Linda MPurchase (P)Common Stock5,272USD 2.53USD 13,338SEC filing ↗
2023-08-18Horton Capital Management, LLC; Horton Capital Partners Fund, L.P.; Horton Capital Partners, LLC; Horton Freedom, L.P.; Manko Joseph M. Jr.Purchase (P)Common Stock10,000USD 2.54USD 25,400SEC filing ↗
2023-08-16CASCELLA ROBERTPurchase (P)Common Stock19,000USD 2.61USD 49,590SEC filing ↗
2022-05-13Tharby Linda MPurchase (P)Common Stock9,897USD 2.20USD 21,773SEC filing ↗
2022-05-13Horton Capital Management, LLC; Horton Capital Partners Fund, L.P.; Horton Capital Partners, LLC; Horton Freedom, L.P.; Manko Joseph M. Jr.Purchase (P)Common Stock20,000USD 2.15USD 43,000SEC filing ↗

Form 4 evidence

52 transaction lines in the latest 365-day window; 292 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-01WHOLIHAN EDWARDAward / grant (A)Common Stock5,119USD 2.93USD 14,999SEC filing ↗
2026-10-01Matin ShahriarAward / grant (A)Common Stock5,119USD 2.93USD 14,999SEC filing ↗
2026-10-01French DonnaAward / grant (A)Common Stock5,119USD 2.93USD 14,999SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-01WHOLIHAN EDWARDAward / grant (A)Common Stock5,119USD 2.93USD 14,999SEC filing ↗
2026-10-01Matin ShahriarAward / grant (A)Common Stock5,119USD 2.93USD 14,999SEC filing ↗
2026-10-01French DonnaAward / grant (A)Common Stock5,119USD 2.93USD 14,999SEC filing ↗
2026-10-01FLETCHER R JOHNAward / grant (A)Common Stock7,679USD 2.93USD 22,499SEC filing ↗
2026-10-01CASCELLA ROBERTAward / grant (A)Common Stock5,119USD 2.93USD 14,999SEC filing ↗
2026-09-30Horton Capital Management, LLC; Horton Capital Partners Fund, L.P.; Horton Capital Partners, LLC; Manko Joseph M. Jr.Award / grant (A)Common Stock5,119USD 0.00USD 0SEC filing ↗
2026-09-08KALBERMATTEN ADAM RPurchase (P)Common Stock32,000USD 3.16USD 101,120SEC filing ↗
2026-07-28KALBERMATTEN ADAM ROption exercise / conversion (M)Common Stock75,000USD 0.00USD 0SEC filing ↗
2026-07-28KALBERMATTEN ADAM RTax withholding (F)Common Stock25,483USD 4.26USD 108,558SEC filing ↗
2026-07-01WHOLIHAN EDWARDAward / grant (A)Common Stock3,571USD 4.20USD 14,998SEC filing ↗
2026-07-01Matin ShahriarAward / grant (A)Common Stock3,571USD 4.20USD 14,998SEC filing ↗
2026-07-01French DonnaAward / grant (A)Common Stock3,571USD 4.20USD 14,998SEC filing ↗
2026-07-01FLETCHER R JOHNAward / grant (A)Common Stock5,357USD 4.20USD 22,499SEC filing ↗
2026-07-01CASCELLA ROBERTAward / grant (A)Common Stock3,571USD 4.20USD 14,998SEC filing ↗
2026-06-30Horton Capital Management, LLC; Horton Capital Partners Fund, L.P.; Horton Capital Partners, LLC; Manko Joseph M. Jr.Award / grant (A)Common Stock3,571USD 0.00USD 0SEC filing ↗
2026-06-11KALBERMATTEN ADAM RPurchase (P)Common Stock5,000USD 3.96USD 19,800SEC filing ↗
2026-06-11KALBERMATTEN ADAM RPurchase (P)Common Stick7,500USD 3.93USD 29,475SEC filing ↗
2026-05-18Schiller EricPurchase (P)Common Stock5,000USD 3.91USD 19,550SEC filing ↗
2026-05-15Tharby Linda MPurchase (P)Common Stock1,191USD 3.92USD 4,669SEC filing ↗
2026-05-15Tharby Linda MPurchase (P)Common Stock1,191USD 1,191.00USD 1,418,481SEC filing ↗
2026-05-14Tharby Linda MOption exercise / conversion (M)Common Stock13,977USD 0.00USD 0SEC filing ↗
2026-05-14Tharby Linda MTax withholding (F)Common Stock7,326USD 3.94USD 28,864SEC filing ↗
2026-05-14Pazdan ChristopherPurchase (P)Common Stock5,000USD 3.88USD 19,400SEC filing ↗
2026-05-14Pazdan ChristopherOption exercise / conversion (M)Common Stock5,327USD 0.00USD 0SEC filing ↗
2026-05-14Pazdan ChristopherTax withholding (F)Common Stock1,470USD 3.94USD 5,792SEC filing ↗
2026-05-14Adams Thomas EdwardPurchase (P)Common Stock5,500USD 3.86USD 21,248SEC filing ↗
2026-05-14Adams Thomas EdwardOption exercise / conversion (M)Common Stock8,193USD 0.00USD 0SEC filing ↗
2026-05-14Adams Thomas EdwardTax withholding (F)Common Stock2,900USD 3.94USD 11,426SEC filing ↗
2026-04-01WHOLIHAN EDWARDAward / grant (A)Common Stock3,472USD 4.32USD 14,999SEC filing ↗
2026-04-01Matin ShahriarAward / grant (A)Common Stock3,472USD 4.32USD 14,999SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerKRMD
CIK0000704440
SectorHealthcare
IndustryMedical Instruments & Supplies Yahoo Finance
SEC SIC3841 Surgical & Medical Instruments & Apparatus
ExchangeNasdaq

Data coverage

Local Form 4 history292 transaction lines from 2020-01-06 to 2026-10-01
35 P purchase lines · 2 S sale lines · 255 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.