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

Atea Pharmaceuticals, Inc.

AVIR · Nasdaq · CIK 0001593899 · Healthcare · Biotechnology

INSIDER SIGNAL

41.0 / 100

1 buyers · 1 purchase transaction lines · $25.4K gross purchase

WHY THIS SIGNAL?

Buyer breadthLow
Purchase sizeLow
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+3.2 / 25
Role+20.0 / 20
Recency+0.8 / 10
Conviction+10.0 / 10

What is holding the score back?

  • ⚠ Cluster breadth is moderate · 1 insider(s), not 4+
  • ⚠ Purchase size is modest relative to the model scale
  • ⚠ 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
Murphy Polly A.Director
●○
Lucidi BrunoDirector
○
BERGER FRANKLIN MDirector
○
DUNCAN BARBARA GAYLEDirector
○
Adams Jerome M.Director
○
Polsky BruceDirector
○
● Purchase▼ Sale○ Other

—

Purchase breadth & concentration

QUALIFYING BUYERS1
PURCHASE CONCENTRATION100%Largest buyer: Murphy Polly A. · $25.4K
CLUSTER BUYING · 15D1 insiderPeak activity: 2026-05-18–2026-05-18

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

SIGNAL HISTORY

41.0 / 100

Latest recorded score

↓ -0.1 ptsversus the previous recorded snapshot
  1. 41.2
  2. 41.1
  3. 41.1
  4. 41.1
  5. 41.0

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

Recent Form 4 activity

1Purchases
0Sales
20Other Form 4 lines
14SEC filings · 365 days
BUYING1 qualifying P line(s) · 180 days
SELLING0 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 provides additional background on recent price performance and risk. It does not affect the Insider Signal.

Price performance

1M
-0.6%
3M
+8.6%
6M
-9.2%
12M
+66.1%

Volatility & liquidity

Volatility
47.2%
Beta
—
Avg daily value
USD 1.5M

Valuation

Market cap
USD 413.1M
P/E
—

Fundamentals

Profit margin
—
ROE
-57.4%
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: 2026-08-10 · Status: PASS

Short interest

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

Shares short
7,886,499
Previous report
7,630,075
Avg daily volume
304,918
Days to cover
25.9

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
2026-05-18Murphy Polly A.Purchase (P)Common Stock6,100USD 4.17USD 25,437SEC filing ↗
2025-01-16BERGER FRANKLIN MPurchase (P)Common Stock10,000USD 3.36USD 33,600SEC filing ↗
2025-01-16BERGER FRANKLIN MPurchase (P)Common Stock10,000USD 3.36USD 33,600SEC filing ↗
2025-01-15BERGER FRANKLIN MPurchase (P)Common Stock15,000USD 3.19USD 47,850SEC filing ↗
2025-01-15BERGER FRANKLIN MPurchase (P)Common Stock15,000USD 3.19USD 47,850SEC filing ↗
2021-12-20Murphy Polly A.Purchase (P)Common Stock12,000USD 8.57USD 102,840SEC filing ↗
2020-11-03Rock Springs Capital LLC; Rock Springs Capital Management LP; Rock Springs Capital Master Fund LPPurchase (P)Common Stock250,000USD 24.00USD 6,000,000SEC filing ↗
2020-11-03Hack Andrew A. F.Purchase (P)Common Stock250,000USD 24.00USD 6,000,000SEC filing ↗
2020-11-03BERGER FRANKLIN MPurchase (P)Common Stock41,666USD 24.00USD 999,984SEC filing ↗

Form 4 evidence

21 transaction lines in the latest 365-day window; 90 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-06-18Polsky BruceOption exercise / conversion (M)Common Stock29,600USD 0.00USD 0SEC filing ↗
2026-06-18Murphy Polly A.Option exercise / conversion (M)Common Stock29,600USD 0.00USD 0SEC filing ↗
2026-06-18Lucidi BrunoOption exercise / conversion (M)Common Stock29,600USD 0.00USD 0SEC filing ↗
Show recent Form 4 evidence (21 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-06-18Polsky BruceOption exercise / conversion (M)Common Stock29,600USD 0.00USD 0SEC filing ↗
2026-06-18Murphy Polly A.Option exercise / conversion (M)Common Stock29,600USD 0.00USD 0SEC filing ↗
2026-06-18Lucidi BrunoOption exercise / conversion (M)Common Stock29,600USD 0.00USD 0SEC filing ↗
2026-06-18DUNCAN BARBARA GAYLEOption exercise / conversion (M)Common Stock29,600USD 0.00USD 0SEC filing ↗
2026-06-18BERGER FRANKLIN MOption exercise / conversion (M)Common Stock29,600USD 0.00USD 0SEC filing ↗
2026-06-18Adams Jerome M.Option exercise / conversion (M)Common Stock29,600USD 0.00USD 0SEC filing ↗
2026-05-18Murphy Polly A.Purchase (P)Common Stock6,100USD 4.17USD 25,437SEC filing ↗
2026-03-11Corcoran AndreaOption exercise / conversion (M)Common Stock60,000USD 1.24USD 74,400SEC filing ↗
2026-02-03Sommadossi Jean-PierreOption exercise / conversion (M)Common Stock300,000USD 1.24USD 372,000SEC filing ↗
2026-01-31Vavricka JohnOption exercise / conversion (M)Common Stock42,083USD —USD —SEC filing ↗
2026-01-31Vavricka JohnTax withholding (F)Common Stock11,570USD 4.24USD 49,057SEC filing ↗
2026-01-31Sommadossi Jean-PierreOption exercise / conversion (M)Common Stock272,983USD —USD —SEC filing ↗
2026-01-31Sommadossi Jean-PierreTax withholding (F)Common Stock106,093USD 4.24USD 449,834SEC filing ↗
2026-01-31Horga Maria ArantxaOption exercise / conversion (M)Common Stock51,283USD —USD —SEC filing ↗
2026-01-31Horga Maria ArantxaTax withholding (F)Common Stock16,073USD 4.24USD 68,150SEC filing ↗
2026-01-31Hammond Janet MJOption exercise / conversion (M)Common Stock58,050USD —USD —SEC filing ↗
2026-01-31Hammond Janet MJTax withholding (F)Common Stock14,136USD 4.24USD 59,937SEC filing ↗
2026-01-31Foster WayneOption exercise / conversion (M)Common Stock41,333USD —USD —SEC filing ↗
2026-01-31Foster WayneTax withholding (F)Common Stock12,132USD 4.24USD 51,440SEC filing ↗
2026-01-31Corcoran AndreaOption exercise / conversion (M)Common Stock54,866USD —USD —SEC filing ↗
2026-01-31Corcoran AndreaTax withholding (F)Common Stock16,104USD 4.24USD 68,281SEC 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 · —
TickerAVIR
CIK0001593899
SectorHealthcare
IndustryBiotechnology Yahoo Finance
SEC SIC2834 Pharmaceutical Preparations
ExchangeNasdaq

Data coverage

Local Form 4 history90 transaction lines from 2020-11-03 to 2026-06-18
10 P purchase lines · 14 S sale lines · 66 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.