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argenx (ARGX) pipeline and stated timing

Pipeline at a glance

ProgramEventStageStated timingFiling
efgartigimod target date (company stated)PDUFAMay 10, 2026SEC filing ·
efgartigimod/data readoutStage not statedthird quarter of 2026EX-99.1 ·
empasiprubartTopline/data readoutStage not statedfourth quarter of 2026EX-99.1 ·
efgartigimodTopline/data readoutPhase 3second half of 202720-F ·
empasiprubartTopline/data readoutStage not statedsecond half of 2027EX-99.1 ·

Source: ORION, orionbiotechai.com/company/ARGX, data as of Oct 18, 2026
https://www.orionbiotechai.com/company/ARGX

Nearest upcoming stated timing: empasiprubart · Topline/data readout · fourth quarter of 2026

SEC sources last checked .

Programs and stated timing

○ Quote matched to filing (not yet reviewed by founder) · ✓ Checked by founder.

efgartigimod

anti-AChR-antibody-negative generalized myasthenia gravis

Matched

PDUFA target date (company stated)May 10, 2026

Stage: PDUFASEC filing · “PDUFA) target action date”

Public float: Unknown (no public float found in SEC filings).

Prescription Drug User Fee Act (PDUFA) target action date for anti-acetylcholine receptor antibody negative (AChR-Ab-) gMG (MuSK+, LRP4+ and triple seronegative) is May 10, 2026

SEC filing · Filed · Last checked

Source details

Accession 0001628280-26-031739

Resolution filing: · SEC filing

efgartigimod

Matched

Topline/data readoutthird quarter of 2026

Stage: Not stated

Public float: Unknown (no public float found in SEC filings).

Topline results from ALKIVIA study (myositis) expected in third quarter of 2026

EX-99.1 · Filed · Last checked

Source details

Accession 0001628280-26-031739

Resolution filing: · SEC filing

empasiprubart

Matched

Topline/data readoutfourth quarter of 2026

Stage: Not stated

Public float: Unknown (no public float found in SEC filings).

Topline results from registrational EMPASSION study (MMN) expected in fourth quarter of 2026

EX-99.1 · Filed · Last checked

Source details

Accession 0001697862-26-000033

efgartigimod

Matched

Topline/data readoutsecond half of 2027

Stage: Phase 3SEC filing · “Phase 3”

Public float: Unknown (no public float found in SEC filings).

UNITY remains ongoing, with topline Phase 3 results expected in the second half of 2027

20-F · Filed · Last checked

Source details

Accession 0001697862-26-000032

empasiprubart

Matched

Topline/data readoutsecond half of 2027

Stage: Not stated

Public float: Unknown (no public float found in SEC filings).

Topline results from registrational EMVIGORATE and EMNERGIZE studies (CIDP) expected in second half of 2027

EX-99.1 · Filed · Last checked

Source details

Accession 0001697862-26-000033

How this date was described over time

Company periods and sentences are quoted as written. A matching disclosure uses the SEC filing date for the same program and event type. As of .

Program / eventStated period and SEC wordingDisclosure in stated period
empasiprubartClinical resultssecond half of 2027
“Topline results from registrational EMVIGORATE and EMNERGIZE studies (CIDP) expected in second half of 2027”

Filed · EX-99.1

Period not started

The stated period has not started yet, so there is nothing to compare.

empasiprubartClinical resultsfourth quarter of 2026
“Topline results from registrational EMPASSION study (MMN) expected in fourth quarter of 2026”

Filed · EX-99.1

Still within period

As of Oct 19, 2026

efgartigimodClinical resultsthird quarter of 2026
“Topline results from ALKIVIA study (myositis) expected in third quarter of 2026”

Filed · EX-99.1

Not compared

The stated period has ended. ORION has no record of a complete search of SEC filings from that period.

efgartigimodFDA decisionMay 10, 2026
“Prescription Drug User Fee Act (PDUFA) target action date for anti-acetylcholine receptor antibody negative (AChR-Ab-) gMG (MuSK+, LRP4+ and triple seronegative) is May 10, 2026”

Filed · SEC original

Not compared

The stated period has ended. ORION has no record of a complete search of SEC filings from that period.

efgartigimodFDA decisionMay 10, 2026
“Prescription Drug User Fee Act (PDUFA) target action date of May 10, 2026”

Filed · SEC original

Not compared

The stated period has ended. ORION has no record of a complete search of SEC filings from that period.

efgartigimodFDA decisionMay 10, 2026
“target action date of May 10, 2026”

Filed · SEC original

Not compared

The stated period has ended. ORION has no record of a complete search of SEC filings from that period.

efgartigimodClinical resultssecond half of 2027
“UNITY remains ongoing, with topline Phase 3 results expected in the second half of 2027”

Filed · 20-F

Period not started

The stated period has not started yet, so there is nothing to compare.

efgartigimodFDA decisionMay 10, 2026
“PDUFA target action date of May 10, 2026”

Filed · SEC original

Not compared

The stated period has ended. ORION has no record of a complete search of SEC filings from that period.

efgartigimodFDA decisionMay 10, 2026
“PDUFA date of May 10, 2026”

Filed · SEC original

Not compared

The stated period has ended. ORION has no record of a complete search of SEC filings from that period.

empasiprubartClinical resultssecond half of 2027
“Topline results from both EMVIGORATE and EMNERGIZE are expected in the second half of 2027”

Filed · 20-F

Period not started

The stated period has not started yet, so there is nothing to compare.

efgartigimodFDA decisionMay 10, 2026
“Prescription Drug User Fee Act (PDUFA) target action date for anti-acetylcholine receptor antibody negative (AChR-Ab-) gMG (MuSK+, LRP4+ and triple seronegative) is May 10, 2026”

Filed · SEC original

Not compared

The stated period has ended. ORION has no record of a complete search of SEC filings from that period.

efgartigimodFDA decisionMay 10, 2026
“PDUFA target action date of May 10, 2026”

Filed · SEC original

Not compared

The stated period has ended. ORION has no record of a complete search of SEC filings from that period.

efgartigimodFDA decisionMay 10, 2026
“Prescription Drug User Fee Act (PDUFA) target action date of May 10, 2026”

Filed · SEC original

Not compared

The stated period has ended. ORION has no record of a complete search of SEC filings from that period.

efgartigimodClinical resultssecond half of 2026
“topline results expected in second half of 2026”

Filed · EX-99.1

Not compared

ORION has no confirmed start and end dates for this wording, so it is not compared with filings.

efgartigimodClinical results2027
“UNITY study ongoing in primary Sjögren’s disease; topline results expected in 2027”

Filed · EX-99.1

Not compared

ORION has no confirmed start and end dates for this wording, so it is not compared with filings.

“Not compared” means ORION has not matched this wording against a complete set of SEC filings for its period. It says nothing either way about whether a matching filing exists. Wording without exact dates is not given calendar dates.

Retained company announcements

Historical summaries and source dates are retained separately from the SEC timing quotes above. Earlier publications were collected retrospectively.

Historical catalog checked .

No historical announcement trail is retained for this company in this catalog.

Selected registry record

ARGX-117 · NCT05907096

Condition in the selected registry record
Delayed Graft Function
Phase in the selected registry record
Phase 2
Identity checked

Original ClinicalTrials.gov record · Open the selected study

Retained company–study identity sources

Scope of retained company and registry evidence

These are selected linked records and dated source metadata, not a live registry recheck or the company’s full pipeline. Company announcements and the selected registry study are separate evidence sets. No stage or event timing is borrowed between them.

Coverage and identity checks

Watch ARGX

Or email ORION to ask for this Watch.

Request another SEC timing statement

Suggest an SEC timing statement to add for ARGX. You can include the original filing link in your note. The founder reads each request by hand.

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Reading these records

First stated window
The timing wording in the earliest company statement located within the sources checked, quoted as written (for example “2H 2026”). An earlier statement may exist outside those sources.
Disclosure date
The date of the filing or company release that disclosed the readout. “None found” means no such disclosure was located in the sources checked. SEC filings were searched through the “SEC filings searched through” date shown.
1H, 2H, 1Q–4Q
First or second half, or first to fourth quarter, of the year named, as the company wrote it. Equivalent notations are compared together; the original wording stays visible.
SEC original
The filing as published on the SEC EDGAR system. “Company original” is the release on the company's own investor site.
Status
One of seven labels set by founder review of the original filings. Definitions: Methodology.

See ARGX in the calendar · Review labels and methodology

A PDUFA date is the target date by which the FDA aims to decide on a drug or biologic application.Topline results are the main summary results of a clinical trial, released before the full data.