What you need to know

ESMA extends simplified insider list format to all issuers

ESMA extends simplified insider list format to all issuers
  • Publication
  • 3 minute read
  • November 07, 2025

Earlier in October of this year, ESMA finalised its draft Implementing Technical Standards earlier, extending the alleviated insider list format (which was previously reserved only for SME Growth Market issuers) to all EU issuers under the amended Market Abuse Regulation. The change has immediate operational implications for EU and Malta‑listed issuers and aims to cut administrative burden while preserving effective supervision.

What is changing and why it matters

ESMA has consolidated five insider‑list templates into three:

  1. All issuers will use an event‑based section.
  2. Where appropriate, all issuers may use a permanent insiders section.
  3. SME Growth Market issuers under the simplified regime may use a third template for persons with regular access.

Data fields have been streamlined to minimise the input of personal data. For instance, personal phone number and home address fields have been removed, while the professional phone field remains; and identification is via National Identification Number (NIN) where applicable, otherwise date of birth (DOB).

Treatment of advisers and other third‑party providers

Issuers should include one natural contact person per external provider with access to inside information and record the provider’s company details within the “function and reason for being insider” field. Advisers are expected to keep their own insider lists of staff who accessed the issuer’s information.

Format, record‑keeping, and transmission

For those lists required by Article 18(1) of the MAR, issuers must keep insider lists electronically with restricted access, accuracy controls, and versioning. SME Growth Market issuers under the simplified regime may use non‑electronic formats if completeness, confidentiality, and integrity are ensured.

Once adopted by the Commission, the new Regulation will repeal and replace the current implementing regulation, consolidating all templates. Most Listing Act provisions will apply from mid‑2026, and issuers should use this as an opportunity to refresh their insider‑list governance.

Key takeaways for Malta issuers

Monitor the MFSA’s guidance on electronic transmission formats and portals; test ability to export and transmit insider lists promptly in the required structure.

Align board and company secretary procedures with compliance and these implementing procedures to define who qualifies as a permanent insider and who is captured on event‑based lists.

Configure insider‑list templates in compliance tools to the new fields, including UTC time‑stamping, and the NIN/DOB logic.

Implement the single‑contact‑per‑provider approach in engagement letters and verify that advisers maintain their own MAR insider lists.

Update privacy notices, ROPAs and retention schedules to reflect reduced personal data and continued use of professional phone numbers.

Tax and Legal publications

Contact us

Chris Mifsud Bonnici

Chris Mifsud Bonnici

Partner, PwC Malta

Tel: +356 79757005

Daniela De Cesare

Daniela De Cesare

Senior Manager, Tax, PwC Malta

Tel: +356 2564 4037

Luca Xerri Balzan

Luca Xerri Balzan

Manager, Tax, PwC Malta

Tel: +356 7973 6312

Follow us