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

Tarsus Pharmaceuticals, Inc.

TARS · Nasdaq · CIK 0001819790 · Healthcare · Biotechnology

INSIDER SIGNAL

No active buy signal

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

31 Form 4 transaction lines observed in the same window
20 sales · 11 option, withholding, award, gift or other lines

Last qualifying purchase2023-12-15 · Goldberg Andrew D. · $19.0K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesHigh
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
LINK WILLIAM J PHDDirector
○▼○▼
Lin Elizabeth YeuChief Medical Officer
▼▼▼
Azamian Bobak R.President/CEO and Board Chair
▼▼▼
YARNO WENDY LDirector
○○
PYOTT DAVID E IDirector
○○
Farrow Jeffrey SSee Remarks
○▼
● Purchase▼ Sale○ Other

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

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: 2023-12-15 · Goldberg Andrew D..

Recent Form 4 activity

0Purchases
59Sales
23Other Form 4 lines
44SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING20 sale line(s) · context only
OTHER11 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
6,070,928
Previous report
6,127,884
Avg daily volume
732,012
Days to cover
8.3

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
2023-12-15Goldberg Andrew D.Purchase (P)Common Stock1,000USD 18.96USD 18,960SEC filing ↗
2023-08-15Lin Elizabeth YeuPurchase (P)Common Stock9,506USD 16.80USD 159,701SEC filing ↗
2022-09-14Lin Elizabeth YeuPurchase (P)Common Stock18,400USD 16.12USD 296,606SEC filing ↗
2022-05-05Ackermann MichaelPurchase (P)Common Stock100,000USD 13.50USD 1,350,000SEC filing ↗
2020-10-20Vivo Capital Fund IX, L.P.; Vivo Capital IX, LLCPurchase (P)Common Stock250,000USD 16.00USD 4,000,000SEC filing ↗
2020-10-20Tester Jason E.Purchase (P)Common Stock171,875USD 16.00USD 2,750,000SEC filing ↗
2020-10-20Horowitz Limited Partnership VIIIPurchase (P)Common Stock184,375USD 16.00USD 2,950,000SEC filing ↗
2020-10-20FHMLS IX, L.L.C.; FHMLS IX, L.P.; Frazier Life Sciences IX, L.P.; Heron Patrick J; Topper James NPurchase (P)Common Stock312,500USD 16.00USD 5,000,000SEC filing ↗

Form 4 evidence

82 transaction lines in the latest 365-day window; 382 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-15YARNO WENDY LOption exercise / conversion (M)Common Stock302USD —USD —SEC filing ↗
2026-09-15PYOTT DAVID E IOption exercise / conversion (M)Common Stock201USD —USD —SEC filing ↗
2026-09-15LINK WILLIAM J PHDSale (S)Common Stock12,500USD 78.38USD 979,744SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-15YARNO WENDY LOption exercise / conversion (M)Common Stock302USD —USD —SEC filing ↗
2026-09-15PYOTT DAVID E IOption exercise / conversion (M)Common Stock201USD —USD —SEC filing ↗
2026-09-15LINK WILLIAM J PHDSale (S)Common Stock12,500USD 78.38USD 979,744SEC filing ↗
2026-09-15LINK WILLIAM J PHDOption exercise / conversion (M)Common Stock201USD —USD —SEC filing ↗
2026-09-04Neervannan SeshadriSale (S)Common Stock4,564USD 85.00USD 387,940SEC filing ↗
2026-09-04Lin Elizabeth YeuSale (S)Common Stock13,953USD 87.50USD 1,220,885SEC filing ↗
2026-09-04Azamian Bobak R.Sale (S)Common Stock10,000USD 90.56USD 905,600SEC filing ↗
2026-09-02Lin Elizabeth YeuSale (S)Common Stock6,977USD 80.00USD 558,160SEC filing ↗
2026-09-02Azamian Bobak R.Sale (S)Common Stock10,000USD 80.06USD 800,600SEC filing ↗
2026-09-01Lin Elizabeth YeuSale (S)Common Stock4,601USD 73.86USD 339,830SEC filing ↗
2026-06-17Azamian Bobak R.Sale (S)Common Stock10,000USD 61.55USD 615,488SEC filing ↗
2026-06-16Farrow Jeffrey SSale (S)Common Stock14,396USD 60.95USD 877,436SEC filing ↗
2026-06-15LINK WILLIAM J PHDSale (S)Common Stock12,500USD 62.12USD 776,495SEC filing ↗
2026-06-15Goodrich KatherineSale (S)Common Stock2,954USD 62.08USD 183,384SEC filing ↗
2026-06-15Farrow Jeffrey SOption exercise / conversion (M)Common Stock27,881USD —USD —SEC filing ↗
2026-06-12YARNO WENDY LOption exercise / conversion (M)Common Stock2,954USD —USD —SEC filing ↗
2026-06-12Morrison Scott WOption exercise / conversion (M)Common Stock2,954USD —USD —SEC filing ↗
2026-06-12LINK WILLIAM J PHDOption exercise / conversion (M)Common Stock2,954USD —USD —SEC filing ↗
2026-06-12Goodrich KatherineOption exercise / conversion (M)Common Stock2,954USD —USD —SEC filing ↗
2026-06-12Goldberg Andrew D.Option exercise / conversion (M)Common Stock2,954USD —USD —SEC filing ↗
2026-06-12CHAUDHURI BHASKAROption exercise / conversion (M)Common Stock2,954USD —USD —SEC filing ↗
2026-04-24PYOTT DAVID E IOption exercise / conversion (M)Common Stock1,383USD —USD —SEC filing ↗
2026-03-20Neervannan SeshadriSale (S)Common Stock2,989USD 66.75USD 199,516SEC filing ↗
2026-03-19Whitfield Dianne C.Sale (S)Common Stock4,174USD 67.00USD 279,658SEC filing ↗
2026-03-19Wahl BryanSale (S)Common Stock4,231USD 67.00USD 283,477SEC filing ↗
2026-03-19Neervannan SeshadriSale (S)Common Stock4,589USD 67.00USD 307,463SEC filing ↗
2026-03-19Mottiwala AzizSale (S)Common Stock4,440USD 67.00USD 297,480SEC filing ↗
2026-03-19Lin Elizabeth YeuSale (S)Common Stock390USD 67.00USD 26,130SEC filing ↗
2026-03-19Farrow Jeffrey SSale (S)Common Stock2,186USD 67.00USD 146,462SEC filing ↗
2026-03-19Azamian Bobak R.Sale (S)Common Stock11,964USD 67.00USD 801,588SEC 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 · —
TickerTARS
CIK0001819790
SectorHealthcare
IndustryBiotechnology Yahoo Finance
SEC SIC2836 Biological Products, (No Diagnostic Substances)
ExchangeNasdaq

Data coverage

Local Form 4 history382 transaction lines from 2020-10-20 to 2026-09-15
11 P purchase lines · 259 S sale lines · 112 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.