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Groupe Tera Stock: price and insider trades · France
No insider purchase over the last 90 days. The latest was filed 14 Feb 2025.
Groupe Tera: what insiders have been doing
This page follows insider dealings at Groupe Tera as filed with AMF, a company from the Healthcare & Pharma sector. From 18 October 2025 to 18 October 2026, the disclosure feed for Groupe Tera logged 3 filings by 3 insiders.
The flow runs one way only: 3 sales worth €4.3M, from 3 insiders, and no purchase. Biggest ticket of the year: €3.9M, sold by P2lv and made public on 25 March 2026 (43.2% of market cap).
Compared with its exchange (316 companies, median 6 filings), a count of 3 filings is below the norm. Over the whole record (from 2022), the tally stands at 2 purchases and 3 sales.
The median gap between a trade and its publication by AMF is 5 days. The regulation allows three business days to notify a trade (MAR article 19). A sale on its own says little: insiders also sell to pay tax, fund a purchase or diversify.
Elsewhere in the same sector, our signals recently picked up insider purchases at Cooper Companies, Inc. and Cytosorbents Corp. This summary is built from AMF disclosures alone and does not predict where the share price will go.
Insider Decl.
5
Thresholds
n/a
Buy Volume
€206,700
2 ops. · all time
Sell Volume
€4M
3 ops. · all time
Who traded when
BuySaleGROUPE TERA SA à conseil d'administration1 buy
Laurent LEQUIN1 sale
P2lv1 sale
Pascal Kaluzny1 sale
Since the insiders bought
- +91.1%Entry €3.14 · Close at T+365 €6.00
Entry is the close on the day after publication, the first price a reader could act on. Prices in the listing currency. Past moves are not a forecast.
Fundamental score
Ranked 4,830 of 24,148 companies
66.8
score / 100
Value52
Quality82
FCF yld-46%
Earn yld·
EV/EBITDA0.8x
ROE163%
Gross mgn41%
Net mgn·
Debt/EBITDA0.3x
Pillars2/3
Transparent value + quality ranking, distinct from the insider signal.
Financial data
as of FY 2025FY ended December 2025 · cache
€4.18
Analyst consensus
Income statement
Revenue€11.1M
Gross profit€4.6M41% margin
EBITDA€17.9M161% margin
Net income€16.7M133.8% margin
Valuation
PER (trailing)1.1x
P/Book0.9x
Beta0.95
Balance sheet & cash
Market cap€8.5M
Total debt€5.1M
Free Cash Flow-€3.9M
Debt / Equity27%
Profitability & ownership
ROE162.5%
ROA-4.8%
% insiders92.1%
% institutions1.1%
Last declaration on 25 March 2026
Declarations5 total
33,121 shares@ €6.502.40% mcap100.0% of flowActionEuronext Growth ParisISIN FR00134294042026DD1103130
30,620 shares@ €6.502.22% mcap100.0% of flowActionEuronext Growth ParisISIN FR00134294042026DD1103149
53,000 shares@ €3.90100.0% of flowActionEuronext Growth ParisISIN FR00134294042025DD1020471
Canonical exit: 14 May 2025 (T+90)
50,000 shares0ActionEuronext Growth ParisISIN FR00134294042022DD862526
Canonical exit: 19 Dec 2022 (T+90)
5 of 5 declarations
About Groupe Tera
Groupe Tera is a French company focused on measuring, analyzing and monetizing air quality data in real time. Founded in 2001 and listed on Euronext Growth on July 18, 2019, the group has built a differentiated model around a full-stack approach to air quality: chemical analysis in laboratories, the development and industrialization of smart sensors, and digital tools to exploit and contextualize the data generated by those sensors. This integrated positioning allows the company to serve a broad range of professional customers, including environmental operators, high-tech industries and healthcare-related users.
The company’s historical core is its laboratory business, which performs chemical analyses of air pollutants across multiple environments. Groupe TERA operates through laboratories including TERA Environnement in Crolles and Fuveau, as well as Toxilabo, with services covering ambient air, indoor air, workplace exposure, emissions and pollutants released by materials or industrial systems. In 2024, this division posted strong volume growth, with close to 120,000 samples received during the year, up 17% versus 2023. The group also reported that the laboratory segment’s EBITDA margin is now above 20% of revenue, confirming the operational maturity of this business line.
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In parallel, Groupe TERA develops “Made in France” innovative sensors for real-time air quality measurement. Its product and technology platform includes TERA Sensor, which is dedicated to the design, development and commercialization of sensors intended for integrators, as well as work on silicon-based gas sensors and particulate matter measurement technologies. The group also has a digital offering centered on a proprietary API and the Atmotrack data platform, designed to enrich sensor outputs with external datasets such as weather, health and traffic information. The Breathe Up mobile app extends this ecosystem by providing personalized recommendations for sensitive populations.
From a market standpoint, Groupe TERA presents itself as one of the few players worldwide active across the entire air-quality value chain. This integrated model is a key strategic asset, as it combines physical sensing, laboratory expertise and software analytics in a single offering. The company also highlights real-world deployments, such as its citizen sensor project with the Aix-Marseille-Provence metropolitan area under the DIAM’S initiative. Financially, consolidated revenue reached €12.882 million in 2024, broadly flat versus 2023, while EBITDA improved to €867k, reflecting better profitability despite delays in the industrialization of certain sensor developments. Headquartered in Crolles, France, the group serves markets with international potential and remains positioned on a specialized, science-driven niche with structural growth drivers linked to environmental monitoring and health awareness.
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