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

AtriCure, Inc.

ATRC · Nasdaq · CIK 0001323885 · Healthcare · Medical Instruments & Supplies

INSIDER SIGNAL

No active buy signal

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

28 Form 4 transaction lines observed in the same window
12 sales · 16 option, withholding, award, gift or other lines

Last qualifying purchase2024-05-30 · Privitera Salvatore · $111.2K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesModerate
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
Privitera SalvatoreChief Technical Officer
○▼▼▼
Prange KarenDirector
○▼▼
WEHRWEIN SVENDirector
○○▼
Doraiswamy VinayakChief Scientific Officer
▼○▼
GROVES REGINA EDirector
○▼
Dahlquist Karl S.Chief Legal Officer
○▼
● Purchase▼ Sale○ Other

Showing the six most active owners; 8 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: 2024-05-30 · Privitera Salvatore.

Recent Form 4 activity

0Purchases
17Sales
45Other Form 4 lines
42SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING12 sale line(s) · context only
OTHER16 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
+5.4%
3M
+60.4%
6M
+97.7%
12M
+59.1%

Volatility & liquidity

Volatility
47.9%
Beta
—
Avg daily value
USD 61.2M

Valuation

Market cap
USD 2.8B
P/E
—

Fundamentals

Profit margin
-2.1%
ROE
-2.3%
Industry
Medical Instruments & Supplies

Market data

Price data up to: 2026-10-09 · Price source: OpenBB/yfinance; volume from price cache (yfinance) · From SEC filings: Market cap, Profit margin, 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: 2026-07-22 · Status: PASS

Short interest

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

Shares short
4,818,782
Previous report
4,279,518
Avg daily volume
1,848,072
Days to cover
2.6

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
2024-05-30Privitera SalvatorePurchase (P)Common Stock5,000USD 22.25USD 111,250SEC filing ↗
2021-04-30GROVES REGINA EPurchase (P)Common Stock34USD 76.68USD 2,607SEC filing ↗
2020-11-17Drake Scott WilliamPurchase (P)Common Stock12,350USD 40.54USD 500,669SEC filing ↗

Form 4 evidence

62 transaction lines in the latest 365-day window; 457 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-23Privitera SalvatoreSale (S)Common Stock4,519USD 60.00USD 271,140SEC filing ↗
2026-09-11GROVES REGINA ESale (S)Common Stock5,313USD 54.22USD 288,071SEC filing ↗
2026-09-08Privitera SalvatoreSale (S)Common Stock3,657USD 55.00USD 201,135SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-23Privitera SalvatoreSale (S)Common Stock4,519USD 60.00USD 271,140SEC filing ↗
2026-09-11GROVES REGINA ESale (S)Common Stock5,313USD 54.22USD 288,071SEC filing ↗
2026-09-08Privitera SalvatoreSale (S)Common Stock3,657USD 55.00USD 201,135SEC filing ↗
2026-09-02Privitera SalvatoreSale (S)Common Stock7,763USD 52.50USD 407,558SEC filing ↗
2026-08-24Dahlquist Karl S.Sale (S)Common Stock9,370USD 48.89USD 458,099SEC filing ↗
2026-08-05Yuen MaggieSale (S)Common Stock3,500USD 38.42USD 134,470SEC filing ↗
2026-08-05Prange KarenSale (S)Common Stock3,564USD 38.80USD 138,283SEC filing ↗
2026-07-30CARREL MICHAEL HGift (G)Common Stock4,700USD 0.00USD 0SEC filing ↗
2026-07-29Noznesky Justin JSale (S)Common Stock6,182USD 38.80USD 239,862SEC filing ↗
2026-07-28WEHRWEIN SVENSale (S)Common Stock25,000USD 37.84USD 946,000SEC filing ↗
2026-07-28WEHRWEIN SVENOption exercise / conversion (M)Common Stock25,000USD 19.95USD 498,750SEC filing ↗
2026-07-28Doraiswamy VinayakSale (S)Common Stock6,000USD 38.88USD 233,280SEC filing ↗
2026-06-30Seith Douglas JAward / grant (A)Common Stock527USD 23.78USD 12,532SEC filing ↗
2026-06-30Privitera SalvatoreAward / grant (A)Common Stock636USD 23.78USD 15,124SEC filing ↗
2026-06-30Doraiswamy VinayakAward / grant (A)Common Stock636USD 23.78USD 15,124SEC filing ↗
2026-06-30Dahlquist Karl S.Award / grant (A)Common Stock636USD 23.78USD 15,124SEC filing ↗
2026-06-30CARREL MICHAEL HAward / grant (A)Common Stock636USD 23.78USD 15,124SEC filing ↗
2026-05-20Prange KarenSale (S)Common Stock3,000USD 28.65USD 85,950SEC filing ↗
2026-05-18Yuen MaggieAward / grant (A)Common Stock6,144USD 0.00USD 0SEC filing ↗
2026-05-18WHITE ROBERT S.Award / grant (A)Common Stock6,144USD 0.00USD 0SEC filing ↗
2026-05-18WEHRWEIN SVENAward / grant (A)Common Stock6,144USD 0.00USD 0SEC filing ↗
2026-05-18Telman Deborah HAward / grant (A)Common Stock6,144USD 0.00USD 0SEC filing ↗
2026-05-18Prange KarenAward / grant (A)Common Stock6,144USD 0.00USD 0SEC filing ↗
2026-05-18Nachman ShlomoAward / grant (A)Common Stock6,144USD 0.00USD 0SEC filing ↗
2026-05-18JOHNSON B KRISTINEAward / grant (A)Common Stock6,144USD 0.00USD 0SEC filing ↗
2026-05-18GROVES REGINA EAward / grant (A)Common Stock6,144USD 0.00USD 0SEC filing ↗
2026-05-15Doraiswamy VinayakSale (S)Common Stock5,000USD 28.13USD 140,650SEC filing ↗
2026-03-12Doraiswamy VinayakSale (S)Common Stock5,000USD 29.83USD 149,150SEC filing ↗
2026-03-10WHITE ROBERT S.Option exercise / conversion (M)Common Stock10,000USD 14.99USD 149,900SEC filing ↗
2026-03-06CARREL MICHAEL HGift (G)Common Stock6,000USD 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 · —
TickerATRC
CIK0001323885
SectorHealthcare
IndustryMedical Instruments & Supplies Yahoo Finance
SEC SIC3841 Surgical & Medical Instruments & Apparatus
ExchangeNasdaq

Data coverage

Local Form 4 history457 transaction lines from 2020-01-02 to 2026-09-23
3 P purchase lines · 123 S sale lines · 331 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.