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

Protara Therapeutics, Inc.

TARA · Nasdaq · CIK 0001359931 · Healthcare · Biotechnology

INSIDER SIGNAL

No active buy signal

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

7 Form 4 transaction lines observed in the same window
1 sales · 6 option, withholding, award, gift or other lines

Last qualifying purchase2025-05-14 · Levy Richard S · $63.8K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesLow
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
Shefferman JesseCEO and President
○▼○
CONKLING WILLIAMChief Commercial 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: 2025-05-14 · Levy Richard S.

Recent Form 4 activity

0Purchases
3Sales
20Other Form 4 lines
18SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING1 sale line(s) · context only
OTHER6 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
5,791,421
Previous report
4,417,095
Avg daily volume
1,992,294
Days to cover
2.9

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
2025-05-14Levy Richard SPurchase (P)Common Stock20,000USD 3.19USD 63,800SEC filing ↗
2025-05-14Levy Richard SPurchase (P)Common Stock20,000USD 3.19USD 63,800SEC filing ↗
2022-09-15Opaleye Management Inc.Purchase (P)Common Stock, par value $0.001 per share7,300USD 3.80USD 27,740SEC filing ↗
2022-09-14Opaleye Management Inc.Purchase (P)Common Stock, par value $0.001 per share16,600USD 3.98USD 66,068SEC filing ↗
2022-08-11Shefferman JessePurchase (P)Common Stock9,065USD 3.84USD 34,810SEC filing ↗
2022-06-30BESHAR LUKE MPurchase (P)Common Stock10,000USD 3.10USD 31,000SEC filing ↗
2022-04-08Opaleye Management Inc.Purchase (P)Common Stock, par value $0.001 per share7,791USD 4.80USD 37,397SEC filing ↗
2022-04-08Opaleye Management Inc.Purchase (P)Common Stock, par value $0.001 per share7,791USD 4.80USD 37,397SEC filing ↗
2022-04-07Opaleye Management Inc.Purchase (P)Common Stock, par value $0.001 per share2,345USD 4.74USD 11,115SEC filing ↗
2022-04-07Opaleye Management Inc.Purchase (P)Common Stock, par value $0.001 per share2,345USD 4.74USD 11,115SEC filing ↗
2022-03-14BESHAR LUKE MPurchase (P)Common Stock10,000USD 4.25USD 42,500SEC filing ↗
2022-03-10BESHAR LUKE MPurchase (P)Common Stock10,000USD 4.46USD 44,600SEC filing ↗
2022-01-28Opaleye Management Inc.Purchase (P)Common Stock, par value $0.001 per share24,031USD 4.96USD 119,194SEC filing ↗
2021-12-29Opaleye Management Inc.Purchase (P)Common Stock, par value $0.001 per share4,500USD 6.98USD 31,410SEC filing ↗
2021-12-28Opaleye Management Inc.Purchase (P)Common Stock, par value $0.001 per share7,091USD 6.36USD 45,099SEC filing ↗

Form 4 evidence

23 transaction lines in the latest 365-day window; 224 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-06-30Shefferman JesseGift (G)Common Stock30,000USD 0.00USD 0SEC filing ↗
2026-06-29Shefferman JesseSale (S)Common Stock215,687USD 4.09USD 882,160SEC filing ↗
2026-06-29Shefferman JesseOption exercise / conversion (M)Common Stock215,687USD 1.91USD 411,962SEC filing ↗
Show recent Form 4 evidence (20 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-06-30Shefferman JesseGift (G)Common Stock30,000USD 0.00USD 0SEC filing ↗
2026-06-29Shefferman JesseSale (S)Common Stock215,687USD 4.09USD 882,160SEC filing ↗
2026-06-29Shefferman JesseOption exercise / conversion (M)Common Stock215,687USD 1.91USD 411,962SEC filing ↗
2026-06-02CONKLING WILLIAMTax withholding (F)Common Stock6,008USD 4.34USD 26,075SEC filing ↗
2026-04-08Zummo JacquelineSale (S)Common Stock1,134USD 5.40USD 6,124SEC filing ↗
2026-04-01Zummo JacquelineSale (S)Common Stock22,598USD 5.26USD 118,865SEC filing ↗
2026-01-26Zummo JacquelineTax withholding (F)Common Stock3,724USD 6.67USD 24,839SEC filing ↗
2026-01-26Shefferman JesseTax withholding (F)Common Stock8,732USD 6.67USD 58,242SEC filing ↗
2026-01-26Fry HannahTax withholding (F)Common Stock1,457USD 6.67USD 9,718SEC filing ↗
2026-01-26Fabbio PatrickTax withholding (F)Common Stock3,261USD 6.67USD 21,751SEC filing ↗
2026-01-20Zummo JacquelineTax withholding (F)Common Stock6,578USD 5.60USD 36,837SEC filing ↗
2026-01-20Shefferman JesseTax withholding (F)Common Stock16,322USD 5.60USD 91,403SEC filing ↗
2026-01-20Fry HannahTax withholding (F)Common Stock2,132USD 5.60USD 11,939SEC filing ↗
2026-01-20Fabbio PatrickTax withholding (F)Common Stock3,063USD 5.60USD 17,153SEC filing ↗
2026-01-16Zummo JacquelineAward / grant (A)Common Stock30,000USD 0.00USD 0SEC filing ↗
2026-01-16Shefferman JesseAward / grant (A)Common Stock87,000USD 0.00USD 0SEC filing ↗
2026-01-16Nicacio Leonardo VianaAward / grant (A)Common Stock26,000USD 0.00USD 0SEC filing ↗
2026-01-16Fry HannahAward / grant (A)Common Stock9,500USD 0.00USD 0SEC filing ↗
2026-01-16Fabbio PatrickAward / grant (A)Common Stock28,000USD 0.00USD 0SEC filing ↗
2026-01-16CONKLING WILLIAMAward / grant (A)Common Stock26,000USD 0.00USD 0SEC 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 · —
TickerTARA
CIK0001359931
SectorHealthcare
IndustryBiotechnology Yahoo Finance
SEC SIC2836 Biological Products, (No Diagnostic Substances)
ExchangeNasdaq

Data coverage

Local Form 4 history224 transaction lines from 2020-01-09 to 2026-06-30
44 P purchase lines · 82 S sale lines · 98 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.