What SEC filings does COMPASS Pathways plc submit to the SEC?

COMPASS Pathways plc (CMPS) 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 CMPS?

A Form 4 for CMPS 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 COMPASS Pathways plc?

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 CMPS?

The 10-K is COMPASS Pathways plc'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 CMPS SEC filings directly on EDGAR?

You can view all historical COMPASS Pathways plc filings on the SEC EDGAR company page for CMPS. Each filing card on this page links directly to the original SEC document.

How often does COMPASS Pathways plc file with the SEC?

COMPASS Pathways plc 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 CMPS shares. 8-K filings occur whenever a material event happens — which can be several times per quarter for an active company.

CMPS SEC Filing News — COMPASS Pathways plc

Latest SEC filings for COMPASS Pathways plc (CMPS) 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: 2026-08-10.

COMPASS Pathways plc operates as a biotechnology company that focuses on mental health in the United Kingdom and the United States. The company develops COMP360, a psilocybin therapy, which is in Phase III clinical trial for the treatment of treatment-resistant depression; and is in Phase II clinical trial for treating post-traumatic stress disorder and anorexia nervosa. The company was formerly known as COMPASS Rx Limited and changed its name to COMPASS Pathways plc in August 2020. The company …

Sector: Healthcare Industry: Medical Care Facilities Market Cap: $1.5B CIK: 1816590

Total Filings

Bullish Classifications

Bearish Classifications

Insider Transactions

Material Events (8-K)

Periodic Reports

What you're looking at: Each item below is parsed from an actual SEC filing submitted by COMPASS Pathways plc. Form 4 = confirmed insider transaction · Form 144 = proposed sale notice · 8-K = material event (earnings, M&A, leadership change, etc.) · 10-Q / 10-K = quarterly / annual report.

CMPS Filing Activity Snapshot 2026-03-27 — 2026-08-10

Insider Transactions (Form 4)

0 buys vs 0 sells

Insider buying and selling activity is balanced in this period.

Largest Form 144 Filing

$1.15M

Jenkins Annalisa · 2026-08-07

83,771 shares · Form 144

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 12 · 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 12 filings in this group are Form 4s for COMPASS Pathways plc.

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 12 insider filings shown, the breakdown is 11 compensation award and 1 tax withholding. None of the classified filings involved a discretionary open-market trade, so this period says nothing about what insiders think of the price.

What each transaction type means

Compensation award ×11: 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.
Tax withholding ×1: Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.

Form 4 Tax withholding Tax / Compensation Filing 2026-08-05

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

Nath Kabir (Director, Chief Executive Officer) 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 withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`F`	Tax withholding on vested shares	5,962	$11.25	$67.1K

Filing: Form 4 (Insider Transaction) Insider: Nath Kabir (Director, Chief Executive Officer) Shares: 5,962

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-05-29

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

Karydas Daphne (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 derivative · Share Option (Right to Buy)	21,110	—	—

Filing: Form 4 (Insider Transaction) Insider: Karydas Daphne (Director)

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-05-29

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

SANTINI GINO (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 derivative · Share Option (Right to Buy)	30,158	—	—

Filing: Form 4 (Insider Transaction) Insider: SANTINI GINO (Director)

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-05-29

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

Gover Justin D. (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 derivative · Share Option (Right to Buy)	21,110	—	—

Filing: Form 4 (Insider Transaction) Insider: Gover Justin D. (Director)

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-05-29

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

JONAS JEFFREY 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 derivative · Share Option (Right to Buy)	21,110	—	—

Filing: Form 4 (Insider Transaction) Insider: JONAS JEFFREY M (Director)

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-05-29

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

Riley Wayne Joseph (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 derivative · Share Option (Right to Buy)	21,110	—	—

Filing: Form 4 (Insider Transaction) Insider: Riley Wayne Joseph (Director)

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-05-29

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

McQuade Robert (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 derivative · Share Option (Right to Buy)	21,110	—	—

Filing: Form 4 (Insider Transaction) Insider: McQuade Robert (Director)

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-05-29

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

Norton David Y (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 derivative · Share Option (Right to Buy)	21,110	—	—

Filing: Form 4 (Insider Transaction) Insider: Norton David Y (Director)

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-05-29

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

Tregoning Kathleen (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 derivative · Share Option (Right to Buy)	41,119	—	—

Filing: Form 4 (Insider Transaction) Insider: Tregoning Kathleen (Director)

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-03-27

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

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	175,000	—	—
`A`	Compensation award derivative · Share Option (Right to Buy)	367,815	—	—

Filing: Form 4 (Insider Transaction) Insider: Nath Kabir (Director, Chief Executive Officer) Shares: 175,000

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-03-27

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

Goodwin Guy (Chief Medical Officer) 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 derivative · Share Option (Right to Buy)	55,000	—	—
`A`	Compensation award derivative · Share Option (Right to Buy)	115,600	—	—

Filing: Form 4 (Insider Transaction) Insider: Goodwin Guy (Chief Medical Officer)

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-03-27

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

Loxam Teri (Chief Financial Officer) 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	75,000	—	—
`A`	Compensation award derivative · Share Option (Right to Buy)	157,635	—	—

Filing: Form 4 (Insider Transaction) Insider: Loxam Teri (Chief Financial Officer) Shares: 75,000

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. COMPASS Pathways plc 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 2026-08-10

CMPS Form 144 filed for proposed insider sale by Jenkins Annalisa (26,000 shares) ~$345.8K

Jenkins Annalisa filed a Form 144 with the SEC indicating intent to sell CMPS (COMPASS Pathways plc) 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: Jenkins Annalisa Shares: 26,000 Est. Value: $345.8K

View on SEC EDGAR → Open Filing Document →

Form 144 Proposed Insider Sale 2026-08-07

CMPS Form 144 filed for proposed insider sale by Jenkins Annalisa (83,771 shares) ~$1.15M

Filing: Form 144 (Proposed Sale Notice) Insider: Jenkins Annalisa Shares: 83,771 Est. Value: $1.15M

View on SEC EDGAR → Open Filing Document →

Material Events 4 · Form 8-K

An 8-K reports a material event in the window between scheduled reports. There are 4 in this period for COMPASS Pathways plc. 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 2026-08-05

CMPS filed 8-K — material company event

COMPASS Pathways plc 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 2026-07-07

CMPS filed 8-K — material company event

COMPASS Pathways plc 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 2026-05-28

CMPS filed 8-K — material company event

COMPASS Pathways plc 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 2026-05-13

CMPS filed 8-K — material company event

COMPASS Pathways plc 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 COMPASS Pathways plc.

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 2026-08-05

CMPS filed Quarterly Report (10-Q)

COMPASS Pathways plc 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 2026-05-13

CMPS filed Quarterly Report (10-Q)

COMPASS Pathways plc 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 COMPASS Pathways plc'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 CMPS. Read these alongside the fundamentals rather than in isolation.

Frequently Asked Questions — CMPS 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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