Marc Barennes
Partner · ParisOutside role
GP Expert Profile
From the GP website and LinkedIn (read Nov 2026). Hover a source to see the exact text.
- Current titles
- Partner, Geradin Partners · since Apr 2024GP website
Outside roleheld at the same time as the GP role
- Non-governmental advisor (NGA), International Competition Network (ICN) · Advisory · since 2012GP website
- GP office
- Paris
- ExpertiseKeywords: hover for the reason
- Practice areas on the GP website:Competition & consumer lawCompetition litigationDigital regulationMerger control, FDI & FSRPublic policy advisory
- Former positions and employers
Sciences PoUniversity or researchLinkedIn
- Lecturer · 2014-2026
Bureau BrandeisLaw firmLinkedIn
- Co-founding Partner - Attorney · 2020-2024
CDC Cartel Damage ClaimsCompanyLinkedIn
- Executive Director Europe · 2019-2020
Court of Justice of the European UnionEU institutionLinkedIn
- Référendaire (General Court) · 2006-2018
European CommissionEU institutionLinkedIn
- Case/Policy Officer · 2004-2006
- OrganisationsMemberships, boards, networks
Bar admission: Attorney and Counselor-at-Law, New York State Bar Association · Avocat, Barreau de Paris (Ordre des avocats de Paris) · Avocat fiduciaire, Barreau de Paris (Ordre des avocats de Paris)LinkedIn
- Additional interestsAs stated by the person
Nothing stated on LinkedIn or the GP website.
- Languages
English (native) · French (native) · Italian (professional) · Spanish (basic)LinkedIn
What the labels mean
TalkOutlined label: what the item is (Talk, Video, Article...).
SpeakerFilled label: what the expert did in it. It decides the family used in the filters and counts: a video of a conference where the expert speaks counts in Talks & events.
- Publications
- AuthorWrote this pieceCo-authorWrote this piece with othersEditorEdited this publication
- Talks & events
- SpeakerSpoke at this conference, webinar or eventPanellistSat on this panelModeratorModerated or chaired this sessionKeynote speakerGave the keynote speechLecturerGave this lecture or courseOrganiserOrganised this event
- Media
- GuestGuest of this podcast or showHostHosts this podcast or showInterviewedInterviewed in this pieceQuotedTheir words are quoted in this piece
- Cases
- Counsel on the caseIn the Geradin Partners team on this case
- Rankings & awards
- RankedRanked in this legal guideAwardedReceived this award, alone or with the GP team
- Own postTheir own post on LinkedInResharedReshared someone else's post on LinkedIn
- Only mentioned
- MentionedNamed in the item, without taking part (never counted)
Last 24 months · 36
28 Oct 2026
Case newsApple App Tracking Transparency (ATT): commitments implemented in iOS 27.2Counsel on the caseBundeskartellamtwith Thomas Höppner, Philipp Westerhoff, Jérémie Jourdan, Marie Sellier“Thomas Höppner Philipp Westerhoff Marc Barennes Jérémie Jourdan Marie Sellier”
Where this sentence is: LinkedIn post by Adrien de Hauteclocque
21 Oct 2026
Press articleGeradin Partners recrute Adrien de Hauteclocque“« Les questions juridiques les plus stratégiques auxquelles sont confrontées les entreprises françaises se jouent simultanément à Paris, Bruxelles et Luxembourg. [...] », a déclaré Marc Barennes, associé au bureau de Paris.”
Where this sentence is: Page on lemondedudroit.fr
13 Oct 2026
Blog postLe Tribunal des activités économiques de Paris et les actions en indemnisation contre Google : questions de compétence (Partie I)AuthorThe Platform Law BlogMarc Barennes[1] et Flore Borel[2] INTRODUCTION A. La compétence du TAE pour octroyer une indemnisation à l’encontre de Google France B. LA COMPÉTENCE DU TAE POUR OCTROYER UNE INDEMNISATION LIÉE À DES PRÉJUDICES SUBIS HORS DE FRANCE CONCLUSION [1] Marc Barennes est avocat aux barreaux de Paris et de New York, et…
Source: Byline on The Platform Law Blog
1 Oct 2026
NewsletterGeradin Partners’ Monthly EU Litigation Briefing – October 2026“Comment from Marc Barennes: In her Opinion, AG Kokott sets out the EU primary law requirements for national limitation rules where the Damages Directive (2014/104/EU) is out of reach.”
Where this sentence is: Article on geradinpartners.com
1 Oct 2026
TalkSeminar at the GP Helsinki office on French and German competition authorities' priorities, damages litigation and its financing“Asiantuntijamme Marc Barennes ja Thomas G. Funke luennoivat Helsingin toimistossamme torstaina 1.10”
Where this sentence is: Their LinkedIn post
3 Sep 2026
ArticleJoint and Several Liability in Private Competition Enforcement: An Underused Strategic Tool“Really enjoyed working on this piece with Marc Barennes on joint and several liability - an underused but genuinely strategic tool.”
Where this sentence is: LinkedIn post by Marie-June Evin
2 Sep 2026
NewsletterGeradin Partners’ Monthly EU Litigation Briefing – July/August 2026SpeakerGeradin Partners“On 1 October 2026, our Helsinki office will host a seminar on cartel damages litigation in France, Germany and Finland, with Marc Barennes and Thomas Funke, moderated by Ilkka Aalto-Setälä.”
Where this sentence is: Article on geradinpartners.com
1 Sep 2026
TalkWebinar on the Bundeskartellamt's Apple ATT commitments decision and its lessons for French publishers and media“Thomas Höppner, qui est à l'origine de la plainte déposée, Marie Sellier et moi-même avons eu grand plaisir durant notre webinaire”
Where this sentence is: Their LinkedIn post
Sep 2026
ArticleLe principe de la responsabilité solidaire en droit privé de la concurrence : Un instrument sous-exploité et pourtant stratégique“Our article on "Joint and Several Liability in Private Competition Enforcement: An Underused Strategic Tool" is out!”
Where this sentence is: Their LinkedIn post
28 Jul 2026
Case newsDieselgate: collective action by over 300 companies and public entities (Renault referred to the Paris criminal court)Counsel on the caseTribunal correctionnel de Paris“Mon confrère Romain Boulet et moi-même sommes fiers de représenter plus de 300 sociétés”
Where this sentence is: Their LinkedIn post
7 Jul 2026
VideoAction collective contre Booking : Booking doit-il indemniser les hôteliers ?Guest10 Minutes Hotel News“Tony Loeb reçoit Maître Marc Barennes, avocat spécialisé en droit de la concurrence et en actions collectives, pour répondre à toutes les questions que se posent les professionnels de l'hôtellerie.”
Where this sentence is: Named in the video description (YouTube)
23 Jun 2026
Blog postThe new French Group Action Law: New Risks and New Opportunities for Businesses in FranceAuthorGP Competition Law BlogBy Marc Barennes* and Agathe Missakian** Introduction In 2025, France adopted a modified group action framework, which entered into force on 3 May 2025.[1] Article 16 of the Law No. 2025-432, as supplemented by three successive decrees (hereafter the “Decrees”), establishes a unified set of rules for group actions…
19 May 2026
EventConférence sur le financement de litigesOrganiserGeradin Partners“GERADIN PARTNERS, IVO Capital Partners, BCTG Avocats, Brown Rudnick LLP, et Questor Consulting se réunissent ce mardi pour discuter”
Where this sentence is: Their LinkedIn post
21 Apr 2026
Press articleLa Hollande, l'autre pays du contentieux international ?“Interview dans la LJA - LA LETTRE DES JURISTES D'AFFAIRES de Marc Barennes et Stijn Huijts”
Where this sentence is: Their LinkedIn post
2 Apr 2026
Academic paperArticle on the French Competition Authority's report on the Leniency programCo-authorLa Revue des juristes de Sciences Po“the piece I co-authored with Léa Comberiati on the French Competition Authority's recent report on the Leniency program”
Where this sentence is: Their LinkedIn post
2 Apr 2026
Academic paperGP Monthly EU Litigation Briefing - April 2026“with comments from me and my litigation colleagues, this time Ilkka Aalto-Setälä, Marc Barennes, Thomas G. Funke, Ruben Elkerbout”
Where this sentence is: LinkedIn post by Ruben Elkerbout
5 Mar 2026
Academic paperGP Monthly EU Litigation Briefing - March 2026Co-authorGeradin Partnerswith Jérémie Jourdan, Daniel Baker, Konstantina Bania, Thomas Funke, Trevor Soames“You can read our case summaries in the briefing, with comments from my litigation colleagues this time Daniel Baker, Dr. Konstantina Bania, Marc Barennes, Thomas G. Funke, Trevor Soames.”
Where this sentence is: LinkedIn post by Jérémie Jourdan
24 Feb 2026
Blog postThe French Competition Authority’s Public Consultation regarding Conversational Agents: An Opportunity for All the Stakeholders to Explain the Market to the Regulator1. After opening on 9 January 2026 an ex officio investigation in the conversational agents sector, the French Autorité de la concurrence (the “Authority”) has launched on 29 January 2026 a public consultation in this regard (the “Consultation”), marking another step in the Authority’s scrutiny of the generative…
Source: Byline on The Platform Law Blog
16 Jan 2026
AwardNominated for the Concurrences Antitrust Writing Award, Private Enforcement: The ASG 2 ruling: The court of justice of the EU confirms the right of consumers and undertakings to bundle their damages claims in the absenceAwardedConcurrences“Private Enforcement - Marc Barennes and Jack Frippiat:”
Where this sentence is: LinkedIn post by Konstantina Bania
15 Jan 2026
AwardGeradin Partners secures 3 Concurrences Writing Awards nominations“Marc Barennes and Jack Frippart, The ASG 2 ruling: the Court of Justice of the EU confirms the right of consumers and undertakings to bundle their damages claims in the absence of a collective action mechanism.”
Where this sentence is: Article on geradinpartners.com
2026
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Article12 Sep 2025
Blog postThe Zalando, Meta and TikTok rulings: key takeaways from the first three DSA judgments of the General courtBy Marc Barennes,[1] Jérémie Jourdan[2] and Maria Gravvani[3] Introduction The Digital Services Act (“DSA”)[4] regulates online intermediaries and platforms such as marketplaces, social networks, content-sharing platforms, app stores, and online travel and accommodation platforms which are offered to users (aka…
Source: Byline on The Platform Law Blog
8 Sep 2025
Blog postNissan Iberia (C-21/24): The Clock for Damages Actions Only Starts Ticking Once the National Competition Authority’s Decision is FinalAuthorGP Competition Law BlogIntroduction Private damages actions are now firmly established as a key tool of EU competition law enforcement. As regularly asserted by the Court of Justice of the European Union (“CJEU” or the “Court”), damages actions are not only about compensating victims of antitrust infringements, but also about deterring…
1 Sep 2025
Press articleGeradin Partners étoffe son équipe avec l'arrivée de Marie Sellier et de Jérémie Jourdan“« Un peu plus d’un an après avoir ouvert à Paris, notre bureau compte désormais 4 associés très expérimentés et une Senior Advisor [...] » conclut Marc Barennes, associé du bureau parisien de Geradin Partners.”
Where this sentence is: Page on lemondedudroit.fr
27 Jun 2025
TalkActions collectives envers Booking.com : le GHR vous donne rendez-vous vendredi 27 juinSpeakerGHR“webinaire, organisé le vendredi 27 juin de 9h à 11h en présence de : Maître Marc Barennes, avocat en charge de l’action collective en France”
Where this sentence is: Page on ghr.fr
24 Apr 2025
VideoDes hôteliers vent debout contre BookingGuestSud Radio“Avec Me Marc Barennes, associé spécialisé en droit de la concurrence chez Geradin Partners”
Where this sentence is: Named in the video description (YouTube)
10 Mar 2025
Blog postThe Recent ASG 2 Ruling: the Court of Justice of the EU Confirms the Right of Consumers and Undertakings to Bundle their Damages Claims in the Absence of a Collective Action MechanismAuthorThe Platform Law BlogAntitrust damages claimants, both in Germany and the rest of the European Union (“EU”), have reasons to rejoice. In its ASG 2 ruling delivered on 28 January 2025 (hereafter the “Ruling” )1, the Grand Chamber of the Court of Justice of the European Union (“ECJ”) ruled, in essence, that in the absence of an effective…
Source: Byline on The Platform Law Blog
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Only mentioned · 1 item naming this person without them taking part (never counted)
12 Nov 2024
EventGeradin Partners célèbre l’ouverture de son bureau à Paris avec succèsMentionedGeradin Partners“Marc Barennes, ancien de la Commission européenne et de la Cour de Justice de l’UE, dispose d’une expérience significative en matière de contentieux et conseil en droits de la concurrence UE et français”
Where this sentence is: Article on geradinpartners.com
Needs review · 1 item not yet confirmed as this person (never counted)
2 Feb 2026
Academic paperGP Monthly EU Litigation Briefing - February 2026“Check out the commentary from Jérémie, Marc and Trevor on this and other recent developments.”
Why it is not confirmed: the name could not be found in the source text
Where this sentence is: LinkedIn post by Jennifer Reeves