What SEC filings does Alphatec Holdings, Inc. submit to the SEC?

Alphatec Holdings, Inc. (ATEC) submits several types of SEC filings including Form 4 (insider transactions), Form 144 (proposed insider sales), 8-K reports (material events such as earnings releases, acquisitions, leadership changes), and periodic reports — the 10-Q (quarterly) and 10-K (annual). All filings are publicly available through SEC EDGAR.

What does a Form 4 filing tell me about ATEC?

A Form 4 for ATEC discloses a transaction by a company insider — typically a director, officer, or 10%+ shareholder. It shows the source-reported date, number of shares, price, and updated ownership. These facts do not establish motive or predict future returns.

How do I interpret an 8-K filing from Alphatec Holdings, Inc.?

An 8-K signals a material event requiring prompt disclosure. Common triggers include earnings pre-announcements, acquisitions, leadership appointments or departures, credit changes, or regulatory actions. Read the item codes inside the filing to understand exactly what was disclosed before drawing conclusions.

What is the difference between a 10-K and 10-Q for ATEC?

The 10-K is Alphatec Holdings, Inc.'s annual report with fully audited financial statements, comprehensive MD&A, and complete risk factor disclosures — filed 60–90 days after fiscal year-end. The 10-Q is a lighter quarterly report with unaudited financials filed for the first three quarters. Together they provide a continuous financial picture of the company.

Where can I see all ATEC SEC filings directly on EDGAR?

You can view all historical Alphatec Holdings, Inc. filings on the SEC EDGAR company page for ATEC. Each filing card on this page links directly to the original SEC document.

How often does Alphatec Holdings, Inc. file with the SEC?

Alphatec Holdings, Inc. files one 10-K per year and up to three 10-Qs per year. Form 4 insider transactions must be reported within two business days of each trade, so the frequency depends on how often insiders are buying or selling ATEC shares. 8-K filings occur whenever a material event happens — which can be several times per quarter for an active company.

ATEC SEC Filing News — Alphatec Holdings, Inc.

Latest SEC filings for Alphatec Holdings, Inc. (ATEC) 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: 2026-10-05.

Alphatec Holdings, Inc., a medical technology company, designs, develops, and advances technologies for the surgical treatment of spinal disorders in the United States and internationally. The company manufactures and sells implants, instruments, imaging equipment, and spare parts. It offers Alpha InformatiX product platform, including EOS imaging system that provides full-body imaging; SafeOp Neural InformatiX System that automates electromyographic, somatosensory evoked potential, and motor ev…

Sector: Healthcare Industry: Medical Devices Market Cap: $1.6B CIK: 1350653

Total Filings

Bullish Classifications

Bearish Classifications

Insider Transactions

Material Events (8-K)

Periodic Reports

Rule-based classifications for ATEC currently lean bearish. Of the 20 filing records displayed, 4 carry bearish classifications (such as insider sales or negative 8-K disclosures) versus 2 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.

ATEC Filing Activity Snapshot 2026-03-17 — 2026-10-05

Insider Transactions (Form 4)

2 buys vs 4 sells

Net insider selling in this period — insiders sell for many reasons beyond conviction.

Largest Form 144 Filing

$3.20M

Lish Scott (CHIEF OPERATING OFFICER) · 2026-03-17

260,535 shares · Form 4

Form 144 Notices

Proposed insider sales filed — Form 144 is a notice of intent, not a confirmed transaction. Actual sales are confirmed via Form 4.

Insider Transactions 13 · 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 13 filings in this group are Form 4s for Alphatec Holdings, 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 13 insider filings shown, the breakdown is 6 compensation award, 4 open-market sale, 2 open-market purchase and 1 option exercise. 6 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.

What each transaction type means

Compensation award ×6: Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Open-market sale ×4: 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.
Open-market purchase ×2: The insider bought shares on the open market with their own money. This is the only Form 4 category that requires a discretionary cash outlay at the prevailing price.
Option exercise ×1: The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.

Form 4 Compensation award Tax / Compensation Filing 2026-10-05

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

Carls Thomas Andrew (EVP, Data & Imaging Solutions) 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 granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	200,000	—	—

Filing: Form 4 (Insider Transaction) Insider: Carls Thomas Andrew (EVP, Data & Imaging Solutions) Shares: 200,000

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market purchase Insider Buying 2026-09-10

ATEC insider Miles Patrick (Director, CEO) bought 115,000 shares (~$1.01M)

Miles Patrick, listed as Director, CEO at Alphatec Holdings, Inc., reported an open-market purchase of 115,000 ATEC shares in a Form 4 filing. Insider buying is often treated as a bullish signal because company insiders are committing their own capital.

The insider bought shares on the open market with their own money. This is the only Form 4 category that requires a discretionary cash outlay at the prevailing price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`P`	Open-market purchase	115,000	$8.81	$1.01M

Filing: Form 4 (Insider Transaction) Insider: Miles Patrick (Director, CEO) Shares: 115,000 Est. Value: $1.01M

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-08-07

ATEC insider Marshall Tyson Eliot (GENERAL COUNSEL & CORP. SEC.) sold 8,168 shares (~$78.8K)

Marshall Tyson Eliot, listed as GENERAL COUNSEL & CORP. SEC. at Alphatec Holdings, Inc., reported an open-market sale of 8,168 ATEC 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	8,168	$9.65	$78.8K

Filing: Form 4 (Insider Transaction) Insider: Marshall Tyson Eliot (GENERAL COUNSEL & CORP. SEC.) Shares: 8,168 Est. Value: $78.8K

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-06-12

ATEC insider MCGINNIS KAREN K (Director) sold 6,050 shares (~$48.5K)

MCGINNIS KAREN K, listed as Director at Alphatec Holdings, Inc., reported an open-market sale of 6,050 ATEC 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
`A`	Compensation award	32,012	—	—
`S`	Open-market sale	6,050	$8.01	$48.5K

Filing: Form 4 (Insider Transaction) Insider: MCGINNIS KAREN K (Director) Shares: 6,050 Est. Value: $48.5K

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-06-12

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

Blackford Quentin S. (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 granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	32,012	—	—

Filing: Form 4 (Insider Transaction) Insider: Blackford Quentin S. (Director) Shares: 32,012

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-06-12

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

Valentine Keith (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 granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	32,012	—	—

Filing: Form 4 (Insider Transaction) Insider: Valentine Keith (Director) Shares: 32,012

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-06-12

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

Pelizzon David R (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 granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	32,012	—	—

Filing: Form 4 (Insider Transaction) Insider: Pelizzon David R (Director) Shares: 32,012

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-06-12

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

Demski David M (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 granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	32,012	—	—

Filing: Form 4 (Insider Transaction) Insider: Demski David M (Director) Shares: 32,012

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-06-12

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

Berkowitz Mortimer III (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 granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	32,012	—	—

Filing: Form 4 (Insider Transaction) Insider: Berkowitz Mortimer III (Director) Shares: 32,012

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market purchase Insider Buying 2026-05-11

ATEC insider Valentine Keith (Director) bought 135,000 shares (~$996.2K)

Valentine Keith, listed as Director at Alphatec Holdings, Inc., reported an open-market purchase of 135,000 ATEC shares in a Form 4 filing. Insider buying is often treated as a bullish signal because company insiders are committing their own capital.

The insider bought shares on the open market with their own money. This is the only Form 4 category that requires a discretionary cash outlay at the prevailing price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`P`	Open-market purchase	56,153	$7.49	$420.6K
`P`	Open-market purchase	43,847	$7.54	$330.6K
`P`	Open-market purchase	35,000	$7.00	$245.0K

Filing: Form 4 (Insider Transaction) Insider: Valentine Keith (Director) Shares: 135,000 Est. Value: $996.2K

View on SEC EDGAR → Open Filing Document →

Form 4 Option exercise Tax / Compensation Filing 2026-04-09

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

Marshall Tyson Eliot (GENERAL COUNSEL & CORP. SEC.) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`M`	Option exercise	15,000	$1.98	$29.7K
`M`	Option exercise	15,000	$1.68	$25.2K
`M`	Option exercise	12,500	$3.34	$41.8K
`M`	Option exercise	60,000	$2.69	$161.4K
`F`	Tax withholding on vested shares	23,393	$11.03	$258.0K
`M`	Option exercise derivative · Employee Stock Option (right to buy)	15,000	—	—
`M`	Option exercise derivative · Employee Stock Option (right to buy)	15,000	—	—
`M`	Option exercise derivative · Employee Stock Option (right to buy)	12,500	—	—
`M`	Option exercise derivative · Employee Stock Option (right to buy)	60,000	—	—

Filing: Form 4 (Insider Transaction) Insider: Marshall Tyson Eliot (GENERAL COUNSEL & CORP. SEC.) Shares: 125,893

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-03-17

ATEC insider Koning John Todd (CHIEF FINANCIAL OFFICER) sold 79,789 shares (~$986.2K)

Koning John Todd, listed as CHIEF FINANCIAL OFFICER at Alphatec Holdings, Inc., reported an open-market sale of 79,789 ATEC 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	79,789	$12.36	$986.2K

Filing: Form 4 (Insider Transaction) Insider: Koning John Todd (CHIEF FINANCIAL OFFICER) Shares: 79,789 Est. Value: $986.2K

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-03-17

ATEC insider Lish Scott (CHIEF OPERATING OFFICER) sold 260,535 shares (~$3.20M)

Lish Scott, listed as CHIEF OPERATING OFFICER at Alphatec Holdings, Inc., reported an open-market sale of 260,535 ATEC 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	260,535	$12.30	$3.20M

Filing: Form 4 (Insider Transaction) Insider: Lish Scott (CHIEF OPERATING OFFICER) Shares: 260,535 Est. Value: $3.20M

View on SEC EDGAR → Open Filing Document →

Proposed Insider Sales 2 · 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. Alphatec Holdings, Inc. has 2 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 2026-08-05

ATEC Form 144 filed for proposed insider sale by TYSON MARSHALL (8,168 shares) ~$84.5K

TYSON MARSHALL filed a Form 144 with the SEC indicating intent to sell ATEC (Alphatec Holdings, 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: TYSON MARSHALL Shares: 8,168 Est. Value: $84.5K

View on SEC EDGAR → Open Filing Document →

Form 144 Proposed Insider Sale 2026-06-11

ATEC Form 144 filed for proposed insider sale by MCGINNIS KAREN K (6,050 shares) ~$48.5K

MCGINNIS KAREN K filed a Form 144 with the SEC indicating intent to sell ATEC (Alphatec Holdings, 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: MCGINNIS KAREN K Shares: 6,050 Est. Value: $48.5K

View on SEC EDGAR → Open Filing Document →

Material Events 3 · Form 8-K

An 8-K reports a material event in the window between scheduled reports. There are 3 in this period for Alphatec Holdings, Inc. Each 8-K names the item number it is filed under, and that number is the fastest way to tell a routine disclosure from a consequential one.

Item 2.02 is an earnings release, Item 5.02 is a change of directors or officers, and Item 1.01 or 2.01 covers a material agreement or a completed acquisition. Item 7.01 and Item 8.01 are the general-purpose disclosure items and carry no fixed meaning on their own.

Form 8-K Material Company Update 2026-08-04

ATEC filed 8-K — material company event

Alphatec Holdings, Inc. filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Form 8-K Material Company Update 2026-06-11

ATEC filed 8-K — material company event

Alphatec Holdings, Inc. filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Form 8-K Material Company Update 2026-05-05

ATEC filed 8-K — material company event

Alphatec Holdings, Inc. filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Periodic Reports 2 · Forms 10-K and 10-Q

The periodic reports are where the audited and reviewed financial statements live. This period contains 2 quarterly reports (10-Q) for Alphatec Holdings, Inc.

The two are not equivalent in weight. A 10-K is audited by an external firm and includes the full risk factor disclosure, business description and management discussion; a 10-Q is unaudited, reviewed rather than examined, and much shorter. When a figure in a quarterly report is later revised, the annual report is usually where the correction appears.

An amended report — 10-K/A or 10-Q/A — restates or corrects something in the original filing, and is worth reading against the version it replaces.

Form 10-Q Quarterly Report 2026-08-04

ATEC filed Quarterly Report (10-Q)

Alphatec Holdings, Inc. filed its quarterly report with the SEC. This report includes unaudited financial statements and management discussion for the quarter.

Filing: 10-Q (Quarterly Report)

View on SEC EDGAR → Open Filing Document →

Form 10-Q Quarterly Report 2026-05-05

ATEC filed Quarterly Report (10-Q)

Alphatec Holdings, Inc. filed its quarterly report with the SEC. This report includes unaudited financial statements and management discussion for the quarter.

Filing: 10-Q (Quarterly Report)

View on SEC EDGAR → Open Filing Document →

How we classify Alphatec Holdings, 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 ATEC. Read these alongside the fundamentals rather than in isolation.

Frequently Asked Questions — ATEC SEC Filings

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ATEC Full Analysis

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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