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EquitiesMajor holder changeIranHeldMedium impact

Isatis Dynamic Investment Company (Private) cuts stake in BTSP to 19.21%

Crossed the 20% line. From the shareholder register published by the Tehran Stock Exchange.

Sep 13, 2026Farabourseبتیس

Recorded figures

Holder
شرکت سرمایه گذاری ایساتیس پویا-سهامی خاص -
Stake now
19.21%
Stake before
20%
Change (points)
down 0.79 points
Shares held
461,000,000
Line crossed
20%

As of Sep 13, 2026

Official source

The instrument in this event

From Sep 13, 2026 to todaydown11.70%

Read from the adjusted series, so a capital increase or a cash dividend in between does not show as a drop.

Shareholder register

The Tehran exchange register, as of Oct 3, 2026. The named holders together hold 57.98% of the shares.

HolderSharesShare
Isatis Dynamic Capital Development and Management Company (Private)

480million

20.00%
Isatis Dynamic Investment Company (Private)ISTP

438million

18.25%
Dara Isatis Dynamic Investment Fund

389million

16.20%
Safiran Baharizd Investment (Private)

30.0million

1.25%
Isatis Dynamic Financial Group and Expansion Company (Private)

29.0million

1.21%
Tarrah Isaatis Pouya Investment Fund

25.7million

1.07%

Source: the Tehran exchange's daily shareholder register. The exchange names only holders at roughly one percent and above, so this is a floor on known ownership: the rest is spread across smaller holders it does not name.

Board of directors

MemberRoleRepresentativeServing since
Mokhtar NaseriChief executiveExecutive—Apr 15, 2026
Isatis Pouya Investment GroupMemberNon-executiveMahmoud Moein al-DinFeb 15, 2025
Isatis Pouya Capital Development and ManagementMemberNon-executiveSeyed Abolhassan SadriyyehFeb 15, 2025
Nik Isatis Capital and Energy DevelopmentMemberNon-executiveEhsan AfzaliFeb 15, 2025
Mohsen AbdollahiVice chairNon-executive—Feb 15, 2025
Seyed Alimohammad KhabiriChairNon-executive—Feb 15, 2025

Source: the codal filing that announced each election; every name links to its own letter.

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