Tenaris SA (TNRSF) stock

TNRSFOTCSteel Works, Blast Furnaces & Rolling Mills (Coke Ovens)Also trades as TS

Financials through fiscal 2025, year ended Dec 31, 2025Last filing: 20-F on Mar 31, 2026Score 8/30

$28.12+0.00 (0.00%)

Close on Oct 19, 2026Market cap $30.86BP/E –Yield –

Tenaris shares outstanding

Diluted shares outstanding: the weighted share count used for earnings per share, adjusted for stock splits.

For fiscal 2025 it was 1.06B, down 6.3% from the year before. Over ten years it grew -1.1% a year on average. The highest annual figure on record is 1.18B in fiscal 2015.

Annual shares outstanding

Period	Period end	Value	Change
FY2025	Dec 31, 2025	1.06B	-6.3%
FY2024	Dec 31, 2024	1.13B	-4.4%
FY2023	Dec 31, 2023	1.18B	-0.1%
FY2022	Dec 31, 2022	1.18B	0.0%
FY2021	Dec 31, 2021	1.18B	0.0%
FY2020	Dec 31, 2020	1.18B	+99900.0%
FY2019	Dec 31, 2019	1M	0.0%
FY2018	Dec 31, 2018	1M	-99.9%
FY2017	Dec 31, 2017	1.18B	0.0%
FY2016	Dec 31, 2016	1.18B	0.0%
FY2015	Dec 31, 2015	1.18B	–