| # | Holder | Shares | % of Shares Out | Change | Filing Date |
|---|---|---|---|---|---|
| 1 |
Bpifrance Participations S.A.
|
2.627m | 10.81% | — | Dec 31 2025 |
| 2 |
Janus Henderson Investors
|
1.216m | 5.00% | — | Dec 31 2025 |
| 3 |
Amiral Gestion S.A.
|
1.172m | 4.82% | — | Dec 31 2025 |
| 4 |
Caisse des Dépôts et Consignations
|
730.981k | 3.01% | -294.375k | Dec 31 2025 |
| 5 |
The Vanguard Group, Inc.
|
693.700k | 2.85% | +584.000 | Mar 31 2026 |
|
1
Bpifrance Participations S.A.
|
10.81%
2.627m
|
|
2
Janus Henderson Investors
|
5.00%
1.216m
|
|
3
Amiral Gestion S.A.
|
4.82%
1.172m
|
|
4
Caisse des Dépôts et Consignations
|
3.01%
730.981k
|
|
5
The Vanguard Group, Inc.
|
2.85%
693.700k
|
| The largest shareholders show who really holds influence: big institutional owners shape a stock's liquidity, and building or cutting positions can move the price. | |
| The 5 largest shareholders together hold 26.50% of Mersen, with Bpifrance Participations S.A. the biggest at 10.81%, followed by Janus Henderson Investors (5.00%) and Amiral Gestion S.A. (4.82%). |
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