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Atmastco shareholders and shareholding pattern

NSE: ATMASTCOConstruction

Last close ₹97.25down ₹7.65 (7.29%)

Share price at the NSE close on 23 Oct 2026. Previous close ₹104.90.

52-week range of traded prices to 23 Oct 2026
₹96.80Low, 23 Oct 2026₹214.80High, 12 May 2026
Market cap
₹254 Cr
P/E
13.4
P/B
Shares changed
Dividend yield
Nonein the last 12 months
ROE
13.9%
Debt to equity
0.71
Volume, NSE
49,60094.4% delivered

Who owns Atmastco, filing by filing

Per cent of the company's shares. Every filing on record, from Mar 2024; the latest is the filing for Sep 2026.

Sep 2026 filing

  • Promoters62.54%
  • Foreign institutionsNone
  • Indian institutions0.03%
  • Individuals and others37.43%

Shareholding pattern, per cent

  • Promoters
  • Foreign institutions
  • Indian institutions
  • Individuals and others
Per centMar 2024Filed 17 AprSep 2024Filed 18 OctMar 2025Filed 19 AprSep 2025Filed 13 OctMar 2026Filed 17 AprJun 2026Filed 20 JulSep 2026Filed 21 Oct
68.43%68.43%66.15%66.15%66.14%66.14%62.54%
Indian promoters68.43%68.43%66.15%66.15%66.14%66.14%62.54%
31.57%31.57%33.85%33.85%33.86%33.86%37.46%
Shares in issue2,47,34,6902,47,34,6902,47,34,6902,47,34,6902,47,34,6902,47,34,6902,61,58,290
Shares locked in1,73,66,0901,73,66,0901,28,77,51950,03,33849,46,9381,06,61,7871,11,43,437
Promoters' shares locked in1,69,26,7701,69,26,7701,23,71,51949,46,93849,46,9381,05,19,7871,08,84,637
A dash is a line the filing did not state. “Under 0.01%” is a holding of shares too small to show at two decimals.

Number of Atmastco shareholders

Shareholders on the company's register in each filing.

Shareholders, filing by filing

ShareholdersMar 2024Filed 17 AprSep 2024Filed 18 OctMar 2025Filed 19 AprSep 2025Filed 13 OctMar 2026Filed 17 AprJun 2026Filed 20 JulSep 2026Filed 21 Oct
All shareholders2,1343,4594,0654,0623,8903,7963,796
8877777
Indian promoters8877777
2,1263,4514,0584,0553,8833,7893,789
A dash is a line the filing did not state.

Atmastco promoters

Promoters are the founders, families and companies that control the company, as its filings name them. Every member of the promoter group holding shares in the filing for Sep 2026; the largest is SUBRAMANIAM SWAMINATHAN IYER, 27.92%. The filing names 2 more members with no shares.Promoter buying and selling

Holder
SUBRAMANIAM SWAMINATHAN IYERIndividuals and Hindu undivided families27.92%73,04,277100.00%
APEX STEEL AND TECHNOLOGY INDIA PRIVATE LIMITEDIndian companies, trusts and others17.07%44,65,2360.00%
G VENKATARAMANIndividuals and Hindu undivided families13.69%35,80,360100.00%
JAYASUDHA IYERIndividuals and Hindu undivided families1.46%3,82,2000.00%
VISHWAM CONSTRUCTIONS PRIVATE LIMITEDIndian companies, trusts and others1.40%3,67,3470.00%
BANUMATHI GANESANIndividuals and Hindu undivided families0.52%1,36,5000.00%
SOWRIRAJAN SIndividuals and Hindu undivided families0.47%1,22,8500.00%
No promoter shares are reported as pledged. Locked in is the share of the holder's own shares that cannot be sold yet, as after a listing or an allotment.

Largest public holders of Atmastco, filing by filing

Per cent, on the same shares as the split above.

HolderMar 2024Filed 17 AprSep 2024Filed 18 OctMar 2025Filed 19 AprSep 2025Filed 13 OctMar 2026Filed 17 AprJun 2026Filed 20 JulSep 2026Filed 21 Oct
RAASHA FINCAP PRIVATE LIMITEDCompanies––––––1.34%
AJAY KUMAR AGGARWALResident individuals, over ₹2 lakh at face value1.02%1.64%1.64%1.64%1.64%1.51%1.13%
HEMANT KADAVABHAI BHOOTResident individuals, over ₹2 lakh at face value–1.08%1.00%––––
ROHAN GUPTAResident individuals, over ₹2 lakh at face value1.21%1.00%–––––
SAURABH TRIPATHIResident individuals, over ₹2 lakh at face value1.38%––––––
A filing names every holder above one per cent, in the company's own words: an insurer's holding can carry one of its funds' names. A dash is a filing that did not name the holder, which includes holding under one per cent.