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

CorMedix Inc.

CRMD · Nasdaq · CIK 0001410098 · Healthcare · Biotechnology

INSIDER SIGNAL

No active buy signal

0 qualifying P purchase groups
in the current 180-day scoring window

4 Form 4 transaction lines observed in the same window
0 sales · 4 option, withholding, award, gift or other lines

Last qualifying purchase2025-10-23 · Kaplan Myron · $275.5K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesNone
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

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

AprMayJunJulAugSepOct
Dillione JanetDirector
○
Blum SusanChief Financial Officer
○
Hurlburt ElizabethChief Operating Officer
○
Zelnick Kaufman BethChief Legal Officer
○
● Purchase▼ Sale○ Other

—

Purchase breadth, concentration & cluster buying

These modules activate when qualifying purchases enter the 180-day research window.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2025-10-23 · Kaplan Myron.

Recent Form 4 activity

1Purchases
8Sales
40Other Form 4 lines
32SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER4 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

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 has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.

Short interest

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

Shares short
15,422,728
Previous report
16,202,272
Avg daily volume
815,972
Days to cover
18.9

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
2025-10-23Kaplan MyronPurchase (P)Common Stock25,000USD 11.02USD 275,500SEC filing ↗
2024-10-31Mistry ErinPurchase (P)Common Stock1,500USD 9.99USD 14,985SEC filing ↗
2024-03-13Todisco JosephPurchase (P)Common Stock13,561USD 3.74USD 50,718SEC filing ↗
2023-12-15DUNTON ALAN WPurchase (P)Common Stock3,000USD 3.30USD 9,900SEC filing ↗
2023-12-14DUNTON ALAN WPurchase (P)Common Stock3,000USD 3.45USD 10,350SEC filing ↗
2023-11-17Mistry ErinPurchase (P)Common Stock1,000USD 4.00USD 4,000SEC filing ↗
2023-09-08Todisco JosephPurchase (P)Common Stock10,000USD 3.71USD 37,100SEC filing ↗
2023-05-18Kaplan MyronPurchase (P)Common Stock6,000USD 4.54USD 27,240SEC filing ↗
2023-05-17Todisco JosephPurchase (P)Common Stock5,000USD 4.58USD 22,900SEC filing ↗
2023-05-17Stewart Robert APurchase (P)Common Stock10,000USD 4.37USD 43,700SEC filing ↗
2023-05-17DUNTON ALAN WPurchase (P)Common Stock3,000USD 4.33USD 12,990SEC filing ↗
2023-05-17Costa Paulo FPurchase (P)Common Stock10,000USD 4.65USD 46,500SEC filing ↗
2022-11-15Todisco JosephPurchase (P)Common Stock20,000USD 3.82USD 76,400SEC filing ↗
2022-08-24Todisco JosephPurchase (P)Common Stock4,700USD 3.92USD 18,424SEC filing ↗
2022-05-17Kaplan MyronPurchase (P)Common Stock5,000USD 3.78USD 18,900SEC filing ↗

Form 4 evidence

49 transaction lines in the latest 365-day window; 160 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-18Dillione JanetOption exercise / conversion (M)Common Stock48,909USD —USD —SEC filing ↗
2026-08-29Zelnick Kaufman BethTax withholding (F)Common Stock8,424USD 8.30USD 69,919SEC filing ↗
2026-08-29Hurlburt ElizabethTax withholding (F)Common Stock8,076USD 8.30USD 67,031SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-18Dillione JanetOption exercise / conversion (M)Common Stock48,909USD —USD —SEC filing ↗
2026-08-29Zelnick Kaufman BethTax withholding (F)Common Stock8,424USD 8.30USD 69,919SEC filing ↗
2026-08-29Hurlburt ElizabethTax withholding (F)Common Stock8,076USD 8.30USD 67,031SEC filing ↗
2026-08-29Blum SusanTax withholding (F)Common Stock8,424USD 8.30USD 69,919SEC filing ↗
2026-02-04Zelnick Kaufman BethAward / grant (A)Common Stock36,006USD 0.00USD 0SEC filing ↗
2026-02-04Todisco JosephAward / grant (A)Common Stock77,156USD 0.00USD 0SEC filing ↗
2026-02-04Hurlburt ElizabethAward / grant (A)Common Stock36,006USD 0.00USD 0SEC filing ↗
2026-01-26Stewart Robert AAward / grant (A)Common Stock30,453USD 0.00USD 0SEC filing ↗
2026-01-26Lefkowitz Steven WAward / grant (A)Common Stock30,453USD 0.00USD 0SEC filing ↗
2026-01-26Kaplan MyronAward / grant (A)Common Stock30,453USD 0.00USD 0SEC filing ↗
2026-01-26Duncan Gregory ScottAward / grant (A)Common Stock30,453USD 0.00USD 0SEC filing ↗
2026-01-26Dillione JanetAward / grant (A)Common Stock30,453USD 0.00USD 0SEC filing ↗
2026-01-26DUNTON ALAN WAward / grant (A)Common Stock30,453USD 0.00USD 0SEC filing ↗
2026-01-23Zelnick Kaufman BethTax withholding (F)Common Stock8,803USD 7.27USD 63,998SEC filing ↗
2026-01-23Zelnick Kaufman BethAward / grant (A)Common Stock72,820USD 0.00USD 0SEC filing ↗
2026-01-23Todisco JosephTax withholding (F)Common Stock27,306USD 7.27USD 198,515SEC filing ↗
2026-01-23Todisco JosephAward / grant (A)Common Stock225,900USD 0.00USD 0SEC filing ↗
2026-01-23Hurlburt ElizabethTax withholding (F)Common Stock10,778USD 7.27USD 78,356SEC filing ↗
2026-01-23Hurlburt ElizabethAward / grant (A)Common Stock93,010USD 0.00USD 0SEC filing ↗
2026-01-23Blum SusanTax withholding (F)Common Stock9,767USD 7.27USD 71,006SEC filing ↗
2026-01-23Blum SusanAward / grant (A)Common Stock72,820USD 0.00USD 0SEC filing ↗
2026-01-21Dillione JanetSale (S)Common Stock10,000USD 6.88USD 68,800SEC filing ↗
2026-01-17Todisco JosephTax withholding (F)Common Stock22,665USD 6.78USD 153,669SEC filing ↗
2026-01-16Todisco JosephOption exercise / conversion (M)Common Stock29,585USD 3.38USD 99,997SEC filing ↗
2026-01-12Todisco JosephTax withholding (F)Common Stock17,417USD 7.15USD 124,532SEC filing ↗
2026-01-12Hurlburt ElizabethTax withholding (F)Common Stock5,794USD 7.15USD 41,427SEC filing ↗
2026-01-12Lefkowitz Steven WOption exercise / conversion (M)Common Stock15,000USD 5.63USD 84,450SEC filing ↗
2026-01-08Seckler Michael DavidAward / grant (A)Common Stock133,156USD 0.00USD 0SEC filing ↗
2026-01-02Zelnick Kaufman BethTax withholding (F)Common Stock11,333USD 12.16USD 137,809SEC filing ↗
2026-01-02Hurlburt ElizabethTax withholding (F)Common Stock10,895USD 12.16USD 132,483SEC 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 · —
TickerCRMD
CIK0001410098
SectorHealthcare
IndustryBiotechnology Yahoo Finance
SEC SIC2834 Pharmaceutical Preparations
ExchangeNasdaq

Data coverage

Local Form 4 history160 transaction lines from 2020-01-07 to 2026-09-18
40 P purchase lines · 16 S sale lines · 104 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.