Atmastco Ltd.

Shareholders holding 1% or more · latest filing Jun 2026

MF holdings Company page

Ownership split · Jun 2026

Share of total equity by holder type, with change since Mar 2026.

Promoters 66.14% 0

FII / FPI 0.24% 0.24 pp

DII 0.02% 0.01 pp

Retail & others 33.61% 0.24 pp

Non-public / other 0% 0

Holder type	Mar 2024	Sep 2024	Mar 2025	Sep 2025	Mar 2026	Jun 2026
Promoters	68.43%	68.43%	66.15%	66.15%	66.14%	66.14%
FII / FPI	0.03%	0.01%	0%	0%	0%	0.24%
DII	0%	0.01%	0.43%	0.07%	0.01%	0.02%
Retail & others	31.53%	31.55%	33.42%	33.79%	33.85%	33.61%
Non-public / other	0%	0%	0%	0%	0%	0%

Major shareholders

28 current holders with 1% or more in the Jun 2026 filing. Click a name to see everything they hold.

Show 4 past holders (exited or now below 1%)

Holder	Mar 2024	Sep 2024	Mar 2025	Sep 2025	Mar 2026	Jun 2026	Change (QoQ)
SUBRAMANIAM SWAMINATHAN IYER Promoter	29.53%0.73	29.53%0.73	29.53%0.73	29.53%0.73	29.53%0.73	29.53%0.73	0
APEX STEEL AND TECHNOLOGY INDIA PRIVATE LIMITED Promoter	19.9%0.49	19.9%0.49	18.05%0.45	18.05%0.45	18.05%0.45	18.05%0.45	0
G VENKATARAMAN Promoter	14.49%0.36	14.49%0.36	14.49%0.36	14.48%0.36	14.48%0.36	14.48%0.36	0
JAYASUDHA IYER Promoter	1.55%0.04	1.55%0.04	1.55%0.04	1.55%0.04	1.55%0.04	1.55%0.04	0
AJAY KUMAR AGGARWAL Public	1.02%0.03	1.64%0.04	1.64%0.04	1.64%0.04	1.64%0.04	1.51%0.04	0.13 pp
VISHWAM CONSTRUCTIONS PRIVATE LIMITED Promoter	1.49%0.04	1.49%0.04	1.49%0.04	1.49%0.04	1.49%0.04	1.49%0.04	0
BANUMATHI GANESAN . Promoter New	–	–	0.55%0.01	0.55%0.01	–	0.55%0.01	–
LLP Public	–	0.04%0.00	0.17%0.00	0.3%0.01	0.49%0.01	0.51%0.01	0.02 pp
SOWRIRAJAN S Promoter	0.5%0.01	0.5%0.01	0.5%0.01	0.5%0.01	0.5%0.01	0.5%0.01	0
SEETHALAKSHMI R Promoter	0.44%0.01	0.44%0.01	–	0%0	0%0	0%0	0
Swaminathan Vijay Chander Iyer Promoter	–	0%0	–	0%0	0%0	0%0	0
Swaminathan Annapoorani Iyer Promoter	–	0%0	–	0%0	0%0	0%0	0
Gopalan Lakshminarayanan Promoter	–	0%0	–	0%0	0%0	0%0	0
Vasantha Promoter	–	0%0	–	0%0	0%0	0%0	0
Lakshmi Narayanan Jaishankar Promoter	–	0%0	–	0%0	0%0	0%0	0
Chandramoulee Ganeshan Promoter	–	0%0	–	0%0	0%0	0%0	0
Anuradha Venkataramani Promoter	–	0%0	–	0%0	0%0	0%0	0
Akilaa S Mani Subramanien Promoter	–	0%0	–	0%0	0%0	0%0	0
Bhuvana Venkataraman Promoter	–	0%0	–	0%0	0%0	0%0	0
Advait V Krishna Promoter	–	0%0	–	0%0	0%0	0%0	0
Soundaryaa Venkataraman Promoter	–	0%0	–	0%0	0%0	0%0	0
Rajagopalan N Promoter	–	0%0	–	0%0	0%0	0%0	0
R. Lakshmi Promoter	–	0%0	–	0%0	0%0	0%0	0
R Swaminathan Promoter	–	0%0	–	0%0	0%0	0%0	0
R Karthikvasan Promoter	–	0%0	–	0%0	0%0	0%0	0
Meena Ramanarayanan Promoter	–	0%0	–	0%0	0%0	0%0	0
Concord Helmets & Safety Products Private Limited Promoter	–	0%0	–	0%0	0%0	0%0	0
Apex Industries Promoter	–	0%0	–	0%0	0%0	0%0	0
BANUMATHI GANESAN Promoter Exited / below 1%	0.55%0.01	0.55%0.01	–	–	0.55%0.01	–	–
HEMANT KADAVABHAI BHOOT Public Exited / below 1%	–	1.08%0.03	1%0.02	–	–	–	–
ROHAN GUPTA Public Exited / below 1%	1.21%0.03	1%0.02	–	–	–	–	–
SAURABH TRIPATHI Public Exited / below 1%	1.38%0.03	–	–	–	–	–	–