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

LeonaBio, Inc.

LONA · Nasdaq · CIK 0001620463 · Healthcare · Biotechnology

INSIDER SIGNAL

No active buy signal

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

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

Last qualifying purchase2024-06-24 · Romano Kelly A · $66.3K

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

No Form 4 transaction event is present in the current 180-day window.

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: 2024-06-24 · Romano Kelly A.

Recent Form 4 activity

0Purchases
10Sales
14Other Form 4 lines
11SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER0 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
19,166
Previous report
23,651
Avg daily volume
192,321
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
2024-06-24Romano Kelly APurchase (P)Common Stock27,400USD 2.42USD 66,308SEC filing ↗
2024-06-21Romano Kelly APurchase (P)Common Stock15,000USD 2.26USD 33,900SEC filing ↗
2023-12-29EDELMAN JOSEPH; PERCEPTIVE ADVISORS LLC; PERCEPTIVE LIFE SCIENCES MASTER FUND LTDPurchase (P)Common Stock163,954USD 2.38USD 390,211SEC filing ↗
2023-12-28EDELMAN JOSEPH; PERCEPTIVE ADVISORS LLC; PERCEPTIVE LIFE SCIENCES MASTER FUND LTDPurchase (P)Common Stock409,598USD 2.44USD 999,419SEC filing ↗
2023-12-27EDELMAN JOSEPH; PERCEPTIVE ADVISORS LLC; PERCEPTIVE LIFE SCIENCES MASTER FUND LTDPurchase (P)Common Stock32,134USD 2.28USD 73,266SEC filing ↗
2023-06-07Gengos AndrewPurchase (P)Common Stock15,000USD 3.43USD 51,452SEC filing ↗
2023-06-05Gengos AndrewPurchase (P)Common Stock35,000USD 3.01USD 105,200SEC filing ↗
2023-06-02Gengos AndrewPurchase (P)Common Stock20,012USD 2.82USD 56,441SEC filing ↗
2023-03-30PICKERING GRANTPurchase (P)Common Stock15,000USD 2.47USD 37,050SEC filing ↗
2023-03-29PICKERING GRANTPurchase (P)Common Stock10,000USD 2.33USD 23,300SEC filing ↗
2023-03-29JOHNSON JAMES APurchase (P)Common Stock5,000USD 2.40USD 12,000SEC filing ↗
2022-12-28MILESON GLENNAPurchase (P)Common Stock50,000USD 2.85USD 142,500SEC filing ↗
2022-12-02Romano Kelly APurchase (P)Common Stock30,000USD 3.29USD 98,700SEC filing ↗
2022-11-15MOEBIUS HANSPurchase (P)Common Stock5,000USD 3.29USD 16,450SEC filing ↗
2022-06-30EDELMAN JOSEPH; PERCEPTIVE ADVISORS LLC; PERCEPTIVE LIFE SCIENCES MASTER FUND LTDPurchase (P)Common Stock1,101,362USD 2.99USD 3,293,072SEC filing ↗

Form 4 evidence

24 transaction lines in the latest 365-day window; 172 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-03-04Worthington MarkSale (S)Common Stock1,328USD 5.37USD 7,131SEC filing ↗
2026-03-04San Martin JavierSale (S)Common Stock1,720USD 5.37USD 9,236SEC filing ↗
2026-03-04Renninger RobertSale (S)Common Stock906USD 5.37USD 4,865SEC filing ↗
Show recent Form 4 evidence (23 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-03-04Worthington MarkSale (S)Common Stock1,328USD 5.37USD 7,131SEC filing ↗
2026-03-04San Martin JavierSale (S)Common Stock1,720USD 5.37USD 9,236SEC filing ↗
2026-03-04Renninger RobertSale (S)Common Stock906USD 5.37USD 4,865SEC filing ↗
2026-03-04Litton Mark JamesSale (S)Common Stock5,156USD 5.37USD 27,688SEC filing ↗
2026-03-04CHURCH KEVINSale (S)Common Stock1,359USD 5.37USD 7,298SEC filing ↗
2026-03-03Worthington MarkOption exercise / conversion (M)Common Stock5,726USD 0.00USD 0SEC filing ↗
2026-03-03San Martin JavierOption exercise / conversion (M)Common Stock7,418USD 0.00USD 0SEC filing ↗
2026-03-03Renninger RobertOption exercise / conversion (M)Common Stock3,900USD 0.00USD 0SEC filing ↗
2026-03-03Litton Mark JamesOption exercise / conversion (M)Common Stock22,254USD 0.00USD 0SEC filing ↗
2026-03-03CHURCH KEVINOption exercise / conversion (M)Common Stock5,856USD 0.00USD 0SEC filing ↗
2026-01-02Worthington MarkSale (S)Common Stock876USD 6.88USD 6,027SEC filing ↗
2026-01-02San Martin JavierSale (S)Common Stock1,644USD 6.88USD 11,311SEC filing ↗
2026-01-02Renninger RobertSale (S)Common Stock297USD 6.88USD 2,043SEC filing ↗
2026-01-02Litton Mark JamesSale (S)Common Stock2,586USD 6.88USD 17,792SEC filing ↗
2026-01-02CHURCH KEVINSale (S)Common Stock876USD 6.88USD 6,027SEC filing ↗
2025-12-31Worthington MarkOption exercise / conversion (M)Common Stock3,667USD 0.00USD 0SEC filing ↗
2025-12-31San Martin JavierOption exercise / conversion (M)Common Stock4,667USD 0.00USD 0SEC filing ↗
2025-12-31Renninger RobertOption exercise / conversion (M)Common Stock1,236USD 0.00USD 0SEC filing ↗
2025-12-31Litton Mark JamesOption exercise / conversion (M)Common Stock10,834USD 0.00USD 0SEC filing ↗
2025-12-31CHURCH KEVINOption exercise / conversion (M)Common Stock3,667USD 0.00USD 0SEC filing ↗
2025-12-23EDELMAN JOSEPH; PERCEPTIVE ADVISORS LLC; PERCEPTIVE LIFE SCIENCES MASTER FUND LTD; Perceptive Xontogeny Venture Fund II, LPAward / grant (A)Common Stock1,319,026USD 6.35USD 8,375,815SEC filing ↗
2025-11-18Renninger RobertAward / grant (A)Common Stock1,000USD 2.31USD 2,310SEC filing ↗
2025-11-18CHURCH KEVINAward / grant (A)Common Stock1,000USD 2.31USD 2,310SEC 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 · —
TickerLONA
CIK0001620463
SectorHealthcare
IndustryBiotechnology Yahoo Finance
SEC SIC2836 Biological Products, (No Diagnostic Substances)
ExchangeNasdaq

Data coverage

Local Form 4 history172 transaction lines from 2020-09-18 to 2026-03-04
28 P purchase lines · 40 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.