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1 insider bought €370k of shares over the last 90 days, the latest filed 29 Jul 2026.
Arverne Group S.A.: what insiders have been doing
Every trade that managers of Arverne Group S.A. disclose to AMF is tracked on this page. The company sits in the Energy sector and is based in Pau, France. It was founded in 2021. In the past year (18 October 2025 to 18 October 2026), 8 filings came from 2 insiders.
Both sides are active: 4 purchases worth €10.1M and 2 sales worth €57k, from 2 insiders and 1 insider respectively. Netting one side against the other leaves €10.0M of net buying. Unlike grants, an open-market purchase is paid for by the insider, at the market price. The buyers include 1 board member and 1 chief executive. Pierre Brossollet filed the largest purchase, €9.7M, on 23 June 2026, which represents 2.6% of the company's market value.
For context, the typical company on the same exchange (median of 316 companies) published 6 filings over the same period, against 8 filings here. Over the whole record (from 2023), the tally stands at 23 purchases and 30 sales.
The most recent open-market purchase was published on 29 July 2026, 80 days ago. The median gap between a trade and its publication by AMF is 5 days. For comparison, MAR article 19 gives managers three business days to notify a trade.
In the same sector, recent insider purchases at RGC Resources Inc and Terawulf Inc. also feature in our signals. This summary is built from AMF disclosures alone and does not predict where the share price will go.
Key facts
Headquarters: Pau, France · Founded: 2021
Source: Wikidata (CC0).
Insider Decl.
64
Thresholds
n/a
Buy Volume
€10M
23 ops. · all time
Sell Volume
€6M
30 ops. · all time
Who traded when
BuySalePierre Brossollet1 buy3 sales
Bpifrance Investissement3 buys
New Escence Consulting3 sales
Agnes Bertrand1 buy
Thierry Trouyet1 buy
Analyst consensus: bullish or bearish?
Analysts rate Arverne Group S.A. Strong Buy (bullish), based on 5 analysts. Average price target: €9.48.
Financial data
as of FY 2025FY ended December 2025 · cache
€6.14
Analyst consensus
5 analystsStrong buy
€8.00Target €9.48(+54%)€10.60
Income statement
Revenue€18.3M
Gross profit€24.0M131% margin
EBITDA-€19.5M-107% margin
Net income-€20.7M-142.1% margin
Valuation
PER (forward)-5.5x
P/Book1.8x
Beta0.43
Balance sheet & cash
Market cap€292.1M
Total debt€37.0M
Free Cash Flow-€51.9M
Debt / Equity27%
Profitability & ownership
ROE-16.9%
ROA-7.4%
% insiders58.3%
% institutions14.1%
Last declaration on 29 July 2026
Declarations64 total
148,018 shares@ €0.320.017% mcap0.2% of flowactions de préférence de catégorie 4Hors plateforme de négociationISIN QS00037057932026DD1129735
Canonical exit: 22 Oct 2026 (T+90)
200 shares@ €100,000.0098.2% of flowORANEHors plateforme de négociationISIN FR001400JWR82026DD1129741
180,716 shares@ €0.990.064% mcap0.9% of flowactions de préférence de catégorie 2Hors plateforme de négociationISIN QS00037057692026DD1129733
Canonical exit: 22 Oct 2026 (T+90)
197,358 shares@ €0.730.052% mcap0.7% of flowactions de préférence de catégorie 3Hors plateforme de négociationISIN QS00037057852026DD1129734
Canonical exit: 22 Oct 2026 (T+90)
7,164,624 shares@ €4.0073.9% of flowActionHors plateforme de négociationISIN FR001400JWR82026DD1125001
2,424,523 shares@ €4.002.60% mcap25.0% of flowActionHors plateforme de négociationISIN FR001400JWR82026DD1122259
Canonical exit: 16 Sept 2026 (T+90)
4,867 shares@ €10.01730.015% mcap0.1% of flowActionEuronext ParisISIN FR001400JWR82026DD1118695
1,726 shares@ €4.98210.0% of flowActionEuronext ParisISIN FR001400JWR82025DD1075318
80,000 shares@ €4.500.9% of flowActionHors plateforme de négociationISIN FR001400JWR82025DD1053635
9,615 shares@ €5.25100.0% of flowActionTransaction de gré à gréISIN FR001400JWR82025DD1053452
Canonical exit: 4 Nov 2025 (T+90)
9,615 shares@ €5.25100.0% of flowActionTransaction de gré à gréISIN FR001400JWR82025DD1053286
Canonical exit: 4 Nov 2025 (T+90)
75,000 shares@ €4.5099.0% of flowActionEuronext ParisISIN FR001400JWR82025DD1053002
350 shares@ €4.840.5% of flowActionEuronext ParisISIN FR001400JWR82025DD1052183
350 shares@ €4.960.5% of flowActionEuronext ParisISIN FR001400JWR82025DD1051729
180,000 shares0ActionHors plateforme de négociationISIN FR001400JWR82024DD945604
2,261 shares@ €0.040.2% of flowOption d'achatEuronext ParisISIN FR0014003AC42023DD943794
Canonical exit: 20 Mar 2024 (T+90)
447,739 shares@ €0.045655.9% of flowOption d'achatEuronext ParisISIN FR0014003AC42023DD942100
Canonical exit: 7 Mar 2024 (T+90)
350,000 shares@ €0.045743.8% of flowOption d'achatEuronext ParisISIN FR0014003AC42023DD941647
Canonical exit: 6 Mar 2024 (T+90)
53 shares@ €0.060.0% of flowOption d'achatEuronext ParisISIN FR0014003AC42023DD940023
Canonical exit: 25 Feb 2024 (T+90)
46 shares@ €0.060.0% of flowOption d'achatEuronext ParisISIN FR0014003AC42023DD939784
Canonical exit: 22 Feb 2024 (T+90)
55 shares@ €0.060.0% of flowOption d'achatEuronext ParisISIN FR0014003AC42023DD939493
Canonical exit: 21 Feb 2024 (T+90)
71 shares@ €0.060.0% of flowOption d'achatEuronext ParisISIN FR0014003AC42023DD938643
Canonical exit: 14 Feb 2024 (T+90)
32 shares@ €0.060.0% of flowOption d'achatEuronext ParisISIN FR0014003AC42023DD938442
Canonical exit: 13 Feb 2024 (T+90)
1 shares@ €0.060.0% of flowOption d'achatEuronext ParisISIN FR0014003AC42023DD938068
Canonical exit: 11 Feb 2024 (T+90)
90 shares@ €0.060.0% of flowOption d'achatEuronext ParisISIN FR0014003AC42023DD937928
Canonical exit: 12 Feb 2024 (T+90)
25 of 64 declarations
About Arverne Group S.A.
ARVERNE GROUP S.A. (ISIN FR001400JWR8, ticker ARVEN) is a French industrial company focused on harnessing renewable underground resources, with a core strategy built around geothermal energy and, in the medium term, geothermal lithium. Founded in Pau in 2018 by Pierre Brossollet, the group was created with the ambition of turning the subsoil into a local, low-carbon and sovereign energy source serving territories, public authorities and industrial customers. Arverne is now positioned as France’s leading supplier of geothermal solutions and operates as an integrated player across the value chain, from exploration and drilling to production and commercialization.
The group’s business model is built around three complementary activities. First, Arverne provides geothermal heating and cooling through its subsidiary 2gré, offering solutions for buildings, district heating networks, industrial sites, farms and local authorities. Second, through Lithium de France, it develops geothermal lithium extraction and sales, aiming to contribute to a sovereign European supply chain for electric mobility and energy storage. Third, Arverne Drilling Services carries out deep drilling and well construction, giving the company control over a critical technical capability that is essential in geothermal projects.
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From a historical perspective, Arverne has organized itself into specialized subsidiaries to accelerate industrial deployment. The company strengthened its market visibility by listing on Euronext Paris, where it is also associated with the Tech Leaders segment, while maintaining its identity as a mission-driven company. This reflects a clear strategic emphasis on the energy transition, short supply chains, energy independence and the decarbonization of thermal uses.
In recent months, Arverne has reached several operational milestones, including the launch of geothermal drilling for Lithium de France in Alsace and continued progress on its lithium development roadmap. The group emphasizes its ability to serve both public and private clients, with solutions tailored to the decarbonization of heat demand and, over time, the supply of low-carbon lithium. Its geographic footprint remains primarily French, anchored in Pau and with major projects in Alsace, but its industrial ambition is clearly European in scope.
A notable recent development is the publication in March 2026 of its “Dual Flow” roadmap for 2031-2033, confirming ambitions in heating/cooling and geothermal lithium production. Supported by financial and industrial partners, this strategy highlights Arverne’s growth profile: still in an industrialization phase, but exposed to structurally attractive markets tied to energy sovereignty, transition infrastructure and reindustrialization.
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