ATRC SEC Filing News — AtriCure, Inc.

Latest SEC filings for AtriCure, Inc. (ATRC) explained in plain English. Covers insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). StrongBuyAnalytics provides navigation and brief excerpts or summaries; original filings remain at the SEC/source links and were authored by their filers, not StrongBuyAnalytics. Filing dates shown are source dates. Coverage and detection can be delayed or incomplete because of SEC availability, amendments, parsing, caching, or outages. Latest source filing date shown: 2026-09-24.

AtriCure, Inc. engages in the development, manufacture, and sale of devices for surgical ablation of cardiac tissue, exclusion of the left atrial appendage, and temporarily blocking pain by ablating peripheral nerves to medical centers in the United States, the Asia-Pacific, and internationally. It offers Isolator Synergy Ablation System clamps, a single-use disposable radio frequency products; multifunctional pens and linear ablation devices, a single-use disposable RF products for the treatmen…
Sector: Healthcare Industry: Medical Instruments & Supplies Market Cap: $2.8B CIK: 1323885
20
Total Filings
0
Bullish Classifications
10
Bearish Classifications
11
Insider Transactions
0
Material Events (8-K)
0
Periodic Reports
Rule-based classifications for ATRC currently lean bearish. Of the 20 filing records displayed, 10 carry bearish classifications (such as insider sales or negative 8-K disclosures) versus 0 bullish. This does not necessarily signal fundamental deterioration — insiders sell for many reasons — but it is worth monitoring alongside the company's core financial metrics.
ATRC Filing Activity Snapshot 2026-07-28 — 2026-09-24
Insider Transactions (Form 4)
0 buys vs 10 sells
Net insider selling in this period — insiders sell for many reasons beyond conviction.
Largest Form 144 Filing
$946.0K
WEHRWEIN SVEN (Director) · 2026-07-30
25,000 shares · Form 4
Form 144 Notices
9
Proposed insider sales filed — Form 144 is a notice of intent, not a confirmed transaction. Actual sales are confirmed via Form 4.
Insider Transactions 11 · Forms 3, 4 and 5

A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 11 filings in this group are Form 4s for AtriCure, Inc.

The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.

Across the 11 insider filings shown, the breakdown is 10 open-market sale and 1 gift. 10 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.

What each transaction type means

Open-market sale ×10
The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Gift ×1
Shares were transferred as a gift, typically for estate or charitable planning. No sale into the market took place.
Form 4 Open-market sale Insider Selling 2026-09-24

ATRC insider Privitera Salvatore (Chief Technical Officer) sold 4,519 shares (~$271.1K)

Privitera Salvatore, listed as Chief Technical Officer at AtriCure, Inc., reported an open-market sale of 4,519 ATRC shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 4,519 $60.00 $271.1K
Filing: Form 4 (Insider Transaction) Insider: Privitera Salvatore (Chief Technical Officer) Shares: 4,519 Est. Value: $271.1K
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-09-14

ATRC insider GROVES REGINA E (Director) sold 5,313 shares (~$288.1K)

GROVES REGINA E, listed as Director at AtriCure, Inc., reported an open-market sale of 5,313 ATRC shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 5,313 $54.22 $288.1K
Filing: Form 4 (Insider Transaction) Insider: GROVES REGINA E (Director) Shares: 5,313 Est. Value: $288.1K
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-09-10

ATRC insider Privitera Salvatore (Chief Technical Officer) sold 3,657 shares (~$201.1K)

Privitera Salvatore, listed as Chief Technical Officer at AtriCure, Inc., reported an open-market sale of 3,657 ATRC shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 3,657 $55.00 $201.1K
Filing: Form 4 (Insider Transaction) Insider: Privitera Salvatore (Chief Technical Officer) Shares: 3,657 Est. Value: $201.1K
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-09-04

ATRC insider Privitera Salvatore (Chief Technical Officer) sold 7,763 shares (~$407.6K)

Privitera Salvatore, listed as Chief Technical Officer at AtriCure, Inc., reported an open-market sale of 7,763 ATRC shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 7,763 $52.50 $407.6K
Filing: Form 4 (Insider Transaction) Insider: Privitera Salvatore (Chief Technical Officer) Shares: 7,763 Est. Value: $407.6K
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-08-26

ATRC insider Dahlquist Karl S. (Chief Legal Officer) sold 9,370 shares (~$458.1K)

Dahlquist Karl S., listed as Chief Legal Officer at AtriCure, Inc., reported an open-market sale of 9,370 ATRC shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 9,370 $48.89 $458.1K
Filing: Form 4 (Insider Transaction) Insider: Dahlquist Karl S. (Chief Legal Officer) Shares: 9,370 Est. Value: $458.1K
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-08-07

ATRC insider Prange Karen (Director) sold 3,564 shares (~$138.3K)

Prange Karen, listed as Director at AtriCure, Inc., reported an open-market sale of 3,564 ATRC shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 3,564 $38.80 $138.3K
Filing: Form 4 (Insider Transaction) Insider: Prange Karen (Director) Shares: 3,564 Est. Value: $138.3K
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-08-07

ATRC insider Yuen Maggie (Director) sold 3,500 shares (~$134.5K)

Yuen Maggie, listed as Director at AtriCure, Inc., reported an open-market sale of 3,500 ATRC shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 3,500 $38.42 $134.5K
Filing: Form 4 (Insider Transaction) Insider: Yuen Maggie (Director) Shares: 3,500 Est. Value: $134.5K
View on SEC EDGAR → Open Filing Document →
Form 4 Gift Tax / Compensation Filing 2026-08-03

ATRC insider Form 4 filed for equity award, exercise, or tax withholding

CARREL MICHAEL H (Director, President, CEO, & Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were transferred as a gift, typically for estate or charitable planning. No sale into the market took place.

Transactions reported on this filing
Code Nature Shares Price Value
G Gift 700 — —
G Gift 4,000 — —
Filing: Form 4 (Insider Transaction) Insider: CARREL MICHAEL H (Director, President, CEO, & Director) Shares: 4,700
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-07-30

ATRC insider Doraiswamy Vinayak (Chief Scientific Officer) sold 6,000 shares (~$233.3K)

Doraiswamy Vinayak, listed as Chief Scientific Officer at AtriCure, Inc., reported an open-market sale of 6,000 ATRC shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 6,000 $38.88 $233.3K
Filing: Form 4 (Insider Transaction) Insider: Doraiswamy Vinayak (Chief Scientific Officer) Shares: 6,000 Est. Value: $233.3K
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-07-30

ATRC insider WEHRWEIN SVEN (Director) sold 25,000 shares (~$946.0K)

WEHRWEIN SVEN, listed as Director at AtriCure, Inc., reported an open-market sale of 25,000 ATRC shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
M Option exercise 25,000 $19.95 $498.8K
S Open-market sale 25,000 $37.84 $946.0K
M Option exercise derivative · Non-qualified Stock Option (right to buy) 25,000 — —
Filing: Form 4 (Insider Transaction) Insider: WEHRWEIN SVEN (Director) Shares: 25,000 Est. Value: $946.0K
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-07-30

ATRC insider Noznesky Justin J (Chief Mktg & Strategy Officer) sold 6,182 shares (~$239.9K)

Noznesky Justin J, listed as Chief Mktg & Strategy Officer at AtriCure, Inc., reported an open-market sale of 6,182 ATRC shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 6,182 $38.80 $239.9K
Filing: Form 4 (Insider Transaction) Insider: Noznesky Justin J (Chief Mktg & Strategy Officer) Shares: 6,182 Est. Value: $239.9K
View on SEC EDGAR → Open Filing Document →
Proposed Insider Sales 9 · Form 144

A Form 144 is a notice of intent to sell restricted or control securities. It is not a record that anything was sold. AtriCure, Inc. has 9 such notices in this period.

The distinction matters because a Form 144 is frequently reported as though it were a completed insider sale. The filer may sell all of the shares covered, some of them, or none at all, and there is no obligation to update the notice either way. A sale that is actually executed by an officer or director shows up separately on a Form 4, which is the filing to check before treating a proposed sale as a real one.

Form 144 Proposed Insider Sale 2026-09-23

ATRC Form 144 filed for proposed insider sale by SALVATORE PRIVITERA (4,519 shares) ~$271.1K

SALVATORE PRIVITERA filed a Form 144 with the SEC indicating intent to sell ATRC (AtriCure, Inc.) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: SALVATORE PRIVITERA Shares: 4,519 Est. Value: $271.1K
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-09-11

ATRC Form 144 filed for proposed insider sale by GROVES REGINA E (5,313 shares) ~$285.1K

GROVES REGINA E filed a Form 144 with the SEC indicating intent to sell ATRC (AtriCure, Inc.) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: GROVES REGINA E Shares: 5,313 Est. Value: $285.1K
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-09-08

ATRC Form 144 filed for proposed insider sale by SALVATORE PRIVITERA (3,657 shares) ~$201.1K

SALVATORE PRIVITERA filed a Form 144 with the SEC indicating intent to sell ATRC (AtriCure, Inc.) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: SALVATORE PRIVITERA Shares: 3,657 Est. Value: $201.1K
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-09-02

ATRC Form 144 filed for proposed insider sale by SALVATORE PRIVITERA (7,763 shares) ~$407.6K

SALVATORE PRIVITERA filed a Form 144 with the SEC indicating intent to sell ATRC (AtriCure, Inc.) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: SALVATORE PRIVITERA Shares: 7,763 Est. Value: $407.6K
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-08-24

ATRC Form 144 filed for proposed insider sale by KARL DAHLQUIST (9,370 shares) ~$458.1K

KARL DAHLQUIST filed a Form 144 with the SEC indicating intent to sell ATRC (AtriCure, Inc.) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: KARL DAHLQUIST Shares: 9,370 Est. Value: $458.1K
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-08-05

ATRC Form 144 filed for proposed insider sale by MAGGIE YUEN (3,500 shares) ~$134.5K

MAGGIE YUEN filed a Form 144 with the SEC indicating intent to sell ATRC (AtriCure, Inc.) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: MAGGIE YUEN Shares: 3,500 Est. Value: $134.5K
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-08-05

ATRC Form 144 filed for proposed insider sale by Prange Karen (3,564 shares) ~$139.0K

Prange Karen filed a Form 144 with the SEC indicating intent to sell ATRC (AtriCure, Inc.) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: Prange Karen Shares: 3,564 Est. Value: $139.0K
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-07-29

ATRC Form 144 filed for proposed insider sale by Noznesky Justin J (6,182 shares) ~$239.9K

Noznesky Justin J filed a Form 144 with the SEC indicating intent to sell ATRC (AtriCure, Inc.) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: Noznesky Justin J Shares: 6,182 Est. Value: $239.9K
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-07-28

ATRC Form 144 filed for proposed insider sale by VINAYAK DORAISWAMY (6,000 shares) ~$233.3K

VINAYAK DORAISWAMY filed a Form 144 with the SEC indicating intent to sell ATRC (AtriCure, Inc.) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: VINAYAK DORAISWAMY Shares: 6,000 Est. Value: $233.3K
View on SEC EDGAR → Open Filing Document →

How we classify AtriCure, Inc.'s filings

Straight from EDGAR

Each displayed record links to an original source document. StrongBuyAnalytics provides navigation and brief excerpts or summaries, not the filing itself. Parsing may omit context or contain errors, so read the original document in full.

Transaction codes, not guesswork

The nature shown on each insider filing comes from the transaction code the filer entered on the form itself — P for an open-market purchase, A for a compensation award, F for shares withheld to pay tax, M for an option exercise. Where one filing contains several codes, the transaction table lists them line by line.

Why the distinction matters

Insider activity is routinely summarised as buying or selling, which flattens together decisions that mean very different things. Shares withheld for tax on a vesting grant are an automatic administrative step; shares bought on the open market are someone committing their own money at the current price.

What this page does not tell you

A filing records what happened, not why. Form 4 does not always disclose whether a sale was executed under a pre-arranged Rule 10b5-1 plan, and no single filing is a basis for a decision on ATRC. Read these alongside the fundamentals rather than in isolation.

Frequently Asked Questions — ATRC SEC Filings

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Publisher, sources & limitations — September 15, 2026. StrongBuyAnalytics provides navigation and brief excerpts or summaries for educational use. Original filings remain at SEC EDGAR or other displayed source links; StrongBuyAnalytics does not author them. Filing dates are source dates, not publication dates for this page. Coverage can be delayed, incomplete, amended, or unavailable because of SEC/source availability, parsing, caching, or outages. Verify every material statement in the original filing.
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