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

Connect Biopharma Holdings Ltd

CNTB · Nasdaq · CIK 0001835268 · Healthcare · Biotechnology

INSIDER SIGNAL

51.3 / 100

1 buyers · 1 purchase transaction lines · $372.0K gross purchase

WHY THIS SIGNAL?

Buyer breadthLow
Purchase sizeModerate
RoleStrong
RecencyLow
ConvictionStrong
Score anatomy

Each bar shows the contribution to the current score; the weights and formula stay unchanged.

Cluster+7.0 / 35
Purchase size+13.3 / 25
Role+20.0 / 20
Recency+0.9 / 10
Conviction+10.0 / 10

What is holding the score back?

  • ⚠ Cluster breadth is moderate · 1 insider(s), not 4+
  • ⚠ Purchase activity is becoming less recent
  • ✓ Role scores high · most senior buyer: Director

Purchase-size comments are relative to the model scale. Average daily volume is a separate market-context diagnostic.

US-v1.2 ranks qualifying equity purchases under the current 180-day rules. The score is a research priority, not a return forecast or probability. Backtests have not shown that a higher US score is followed by better returns.

Insider activity timeline

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

AprMayJunJulAugSepOct
Xanthopoulos Kleanthis GabrielDirector
○○
LIU JEAN IDirector
○○
Huang JamesDirector
●
● Purchase▼ Sale○ Other

—

Purchase breadth & concentration

QUALIFYING BUYERS1
PURCHASE CONCENTRATION100%Largest buyer: Huang James · $372.0K
CLUSTER BUYING · 15D1 insiderPeak activity: 2026-05-29–2026-05-29

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

SIGNAL HISTORY

51.3 / 100

Latest recorded score

→ +0.0 ptsversus the previous recorded snapshot
  1. 51.5
  2. 51.4
  3. 51.4
  4. 51.3
  5. 51.3

Only scores saved when a full US scoring run completed are shown; gaps are not reconstructed.

Recent Form 4 activity

1Purchases
0Sales
4Other Form 4 lines
5SEC filings · 365 days
BUYING1 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER4 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot detected in parsed evidence

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 provides additional background on recent price performance and risk. It does not affect the Insider Signal.

Price performance

1M
-57.8%
3M
-61.5%
6M
-69.1%
12M
-52.2%

Volatility & liquidity

Volatility
102.6%
Beta
—
Avg daily value
USD 3.4M

Valuation

Market cap
USD 54.8M
P/E
—

Fundamentals

Profit margin
—
ROE
-132.2%
Industry
Biotechnology

Market data

Price data up to: 2026-10-11 · Price source: OpenBB/yfinance; volume from price cache (yfinance) · From SEC filings: Market cap, ROE · Fiscal year ended: 2025-12-31 · Market cap is the shares outstanding stated on the filing cover multiplied by the latest close. Share count date: 2026-07-31 · Status: PASS

Short interest

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

Shares short
3,499,648
Previous report
2,774,061
Avg daily volume
15,989,406
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
2026-05-29Huang JamesPurchase (P)Ordinary Shares150,000USD 2.48USD 372,000SEC filing ↗

Form 4 evidence

5 transaction lines in the latest 365-day window; 5 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-30Xanthopoulos Kleanthis GabrielAward / grant (A)Ordinary Shares5,000USD 0.00USD 0SEC filing ↗
2026-09-30LIU JEAN IAward / grant (A)Ordinary Shares8,984USD 0.00USD 0SEC filing ↗
2026-06-30Xanthopoulos Kleanthis GabrielAward / grant (A)Ordinary Shares3,738USD 0.00USD 0SEC filing ↗
Show recent Form 4 evidence (5 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-30Xanthopoulos Kleanthis GabrielAward / grant (A)Ordinary Shares5,000USD 0.00USD 0SEC filing ↗
2026-09-30LIU JEAN IAward / grant (A)Ordinary Shares8,984USD 0.00USD 0SEC filing ↗
2026-06-30Xanthopoulos Kleanthis GabrielAward / grant (A)Ordinary Shares3,738USD 0.00USD 0SEC filing ↗
2026-06-30LIU JEAN IAward / grant (A)Ordinary Shares6,718USD 0.00USD 0SEC filing ↗
2026-05-29Huang JamesPurchase (P)Ordinary Shares150,000USD 2.48USD 372,000SEC 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 · —
TickerCNTB
CIK0001835268
SectorHealthcare
IndustryBiotechnology Yahoo Finance
SEC SIC2834 Pharmaceutical Preparations
ExchangeNasdaq

Data coverage

Local Form 4 history5 transaction lines from 2026-05-29 to 2026-09-30
1 P purchase lines · 0 S sale lines · 4 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.