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

Tenon Medical, Inc.

TNON · Nasdaq · CIK 0001560293 · Healthcare · Medical Devices

INSIDER SIGNAL

No active buy signal

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

33 Form 4 transaction lines observed in the same window
9 sales · 15 option, withholding, award, gift or other lines

Last qualifying purchase2026-09-10 · HRT FINANCIAL LP · $246.3K

WHY NO ACTIVE SIGNAL?

Purchase activityPresent
Recent buying6 qualifying line group(s)
Recent salesModerate
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
HRT FINANCIAL LPTenPercentOwner
▼●▼▼●▼●▼●●▼●▼
Williamson KevinChief Financial Officer
○○○○
GINN RICHARDChief Technology Officer
○○
FOSTER STEVEN MCEO and President
○○
WEIGLE ROBERT KDirector
○
Jacques Kristine MDirector
○
● Purchase▼ Sale○ Other

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

Purchase breadth & concentration

QUALIFYING BUYERS1
PURCHASE CONCENTRATION100%Largest buyer: HRT FINANCIAL LP · $500.2K
CLUSTER BUYING · 15D1 insiderPeak activity: 2026-08-28–2026-09-10

Roles in the peak window: TenPercentOwner. Concentration uses priced qualifying P lines only and does not change the saved score.

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: 2026-09-10 · HRT FINANCIAL LP.

Recent Form 4 activity

12Purchases
9Sales
30Other Form 4 lines
28SEC filings · 365 days
BUYING9 qualifying P line(s) · 180 days
SELLING9 sale line(s) · context only
OTHER15 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
60,789
Previous report
539,306
Avg daily volume
5,515,981
Days to cover
≤ 1.0

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
2026-09-10HRT FINANCIAL LPPurchase (P)Common Stock67,925USD 3.63USD 246,297SEC filing ↗
2026-09-09HRT FINANCIAL LPPurchase (P)Common Stock39,508USD 3.40USD 134,327SEC filing ↗
2026-09-08HRT FINANCIAL LPPurchase (P)Common Stock707USD 3.34USD 2,361SEC filing ↗
2026-09-03HRT FINANCIAL LPPurchase (P)Common Stock1,658USD 3.98USD 6,599SEC filing ↗
2026-09-01HRT FINANCIAL LPPurchase (P)Common Stock1,790USD 4.57USD 8,180SEC filing ↗
2026-08-28HRT FINANCIAL LPPurchase (P)Common Stock18,357USD 5.58USD 102,458SEC filing ↗
2025-11-14Grawey Nathaniel A.Purchase (P)Common stock101,167USD —USD —SEC filing ↗
2025-11-14Geist Wyatt D.Purchase (P)Common stock19,455USD —USD —SEC filing ↗
2025-11-14FOSTER STEVEN MPurchase (P)Common stock19,455USD —USD —SEC filing ↗
2023-06-14VAN DICK STEVEN MPurchase (P)Common Stock50,000USD 0.27USD 13,500SEC filing ↗

Form 4 evidence

51 transaction lines in the latest 365-day window; 72 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-10HRT FINANCIAL LPSale (S)Common Stock65,582USD 5.56USD 364,636SEC filing ↗
2026-09-10HRT FINANCIAL LPPurchase (P)Common Stock67,925USD 3.63USD 246,297SEC filing ↗
2026-09-09HRT FINANCIAL LPSale (S)Common Stock60,343USD 2.88USD 174,009SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-10HRT FINANCIAL LPSale (S)Common Stock65,582USD 5.56USD 364,636SEC filing ↗
2026-09-10HRT FINANCIAL LPPurchase (P)Common Stock67,925USD 3.63USD 246,297SEC filing ↗
2026-09-09HRT FINANCIAL LPSale (S)Common Stock60,343USD 2.88USD 174,009SEC filing ↗
2026-09-09HRT FINANCIAL LPPurchase (P)Common Stock39,508USD 3.40USD 134,327SEC filing ↗
2026-09-09Williamson KevinTax withholding (F)Common Stock11USD 3.45USD 38SEC filing ↗
2026-09-08HRT FINANCIAL LPPurchase (P)Common Stock707USD 3.34USD 2,361SEC filing ↗
2026-09-08Williamson KevinOption exercise / conversion (M)Common Stock30USD 0.00USD 0SEC filing ↗
2026-09-04HRT FINANCIAL LPSale (S)Common Stock1,506USD 3.70USD 5,572SEC filing ↗
2026-09-03HRT FINANCIAL LPPurchase (P)Common Stock1,658USD 3.98USD 6,599SEC filing ↗
2026-09-02HRT FINANCIAL LPSale (S)Common Stock450USD 4.53USD 2,038SEC filing ↗
2026-09-01HRT FINANCIAL LPPurchase (P)Common Stock1,790USD 4.57USD 8,180SEC filing ↗
2026-08-31HRT FINANCIAL LPSale (S)Common Stock1,276USD 4.66USD 5,946SEC filing ↗
2026-08-28HRT FINANCIAL LPSale (S)Common Stock7,023USD 7.32USD 51,388SEC filing ↗
2026-08-28HRT FINANCIAL LPPurchase (P)Common Stock18,357USD 5.58USD 102,458SEC filing ↗
2026-08-27HRT FINANCIAL LPSale (S)Common Stock419USD 4.96USD 2,078SEC filing ↗
2026-08-03Williamson KevinTax withholding (F)Common Stock12,978USD 0.20USD 2,596SEC filing ↗
2026-08-03GINN RICHARDTax withholding (F)Common Stock44,809USD 0.20USD 8,962SEC filing ↗
2026-08-03FOSTER STEVEN MTax withholding (F)Common Stock41,788USD 0.20USD 8,358SEC filing ↗
2026-07-31Williamson KevinOption exercise / conversion (M)Common Stock58,987USD 0.00USD 0SEC filing ↗
2026-07-31WEIGLE ROBERT KOption exercise / conversion (M)Common Stock10,732USD 0.00USD 0SEC filing ↗
2026-07-31Jacques Kristine MOption exercise / conversion (M)Common Stock10,147USD 0.00USD 0SEC filing ↗
2026-07-31Hochschuler StephenOption exercise / conversion (M)Common Stock10,732USD 0.00USD 0SEC filing ↗
2026-07-31HOWARD IVANOption exercise / conversion (M)Common Stock10,732USD 0.00USD 0SEC filing ↗
2026-07-31GINN RICHARDOption exercise / conversion (M)Common Stock126,577USD 0.00USD 0SEC filing ↗
2026-07-31Ferrari RichardOption exercise / conversion (M)Common Stock64,479USD 0.00USD 0SEC filing ↗
2026-07-31FOSTER STEVEN MOption exercise / conversion (M)Common Stock140,936USD 0.00USD 0SEC filing ↗
2026-05-01Grawey Nathaniel A.Award / grant (A)Common stock68,201USD 0.00USD 0SEC filing ↗
2026-05-01Geist Wyatt D.Award / grant (A)Common stock136,401USD 0.00USD 0SEC filing ↗
2026-03-03Williamson KevinOption exercise / conversion (M)Common Stock1,041USD 0.00USD 0SEC filing ↗
2026-01-05Williamson KevinTax withholding (F)Common Stock18,518USD 0.93USD 17,222SEC 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 · —
TickerTNON
CIK0001560293
SectorHealthcare
IndustryMedical Devices Yahoo Finance
SEC SIC3841 Surgical & Medical Instruments & Apparatus
ExchangeNasdaq

Data coverage

Local Form 4 history72 transaction lines from 2023-05-22 to 2026-09-10
13 P purchase lines · 11 S sale lines · 48 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.