EquitiesMajor holder changeIranHeldLow impact

Major holder exits TSCA: Kosha Algorithm Investment Fund

The stake moved from 1.12% to 0%. From the shareholder register published by the Tehran Stock Exchange.

Sep 7, 2026Stocksتوسکا

Recorded figures

Holder: صندوق سرمایه گذاری .ا.ب .کوشاالگوریتم
Stake now: 0%
Stake before: 1.12%
Change (points): down 1.12 points
Shares held: 0

As of Sep 7, 2026

Official source

The instrument in this event

TSCATSCA · Stocks · Oct 5, 2026, 1:25 PM24,656 Rial0.13%

From Sep 7, 2026 to today2.58%

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 4, 2026. The named holders together hold 67.34% of the shares.

Holder	Shares	Share
Pure Energy Industries Steel (Private)	1.5billion	23.07%
Chaharmahal and Bakhtiari Auto Plate (Private)	536million	8.12%
Mines and Metals Development Investment (Public)	517million	7.83%
Saba Oil and Gas Development Supply Fund (Public)	304million	4.61%
Mihan Wealth Creation Investment (Private)	277million	4.20%
Tuka Steel Investment (Public)	188million	2.84%
PRX Basket - Company 71838 - Company 85560	164million	2.48%
Mobarakeh Steel Plate Cutting Industries (Private)	146million	2.21%
Mofid Market-Making Investment Fund	107million	1.62%
Integrated Social Marketplace Sarāmad Iraniyan	104million	1.57%
Kosha Algorithm Investment Fund	101million	1.53%
Foladza Zagros Chaharmahal Company (Private)	84.5million	1.28%
Novin Elektrodardakan Company (Private)	82.8million	1.25%
Iranians Investment (Private)	80.0million	1.21%
Tokail (Public)TORZ	79.3million	1.20%
Rahu Niru Aria (Private)	78.3million	1.19%
Capital Investment Risk-Taking of Mobarakeh Steel	75.2million	1.14%

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.

Related events

All dayLow impact

Major holder changeStocksHeld

Major holder exits TSCA: A.B. Mobarakeh Steel Development Investment Fund

The stake moved from 1.05% to 0%. From the shareholder register published by the Tehran Stock Exchange.

Holder: صندوق سرمایه گذاری .ا.ب .توسعه فولادمبارکه
Stake now: 0%

All dayMedium impact

Major holder changeStocksHeld

Chaharmahal and Bakhtiari Auto Plate (Private) raises stake in TSCA to 5.63%

Crossed the 5% line. From the shareholder register published by the Tehran Stock Exchange.

Holder: شرکت ورق خودروچهارمحال وبختیاری -سهامی خاص -
Stake now: 5.63%

All dayLow impact

Major holder changeStocksHeld

A.B. Mobarakeh Steel Development Investment Fund raises stake in TSCA to 1.23%

The stake moved from 0% to 1.23%. From the shareholder register published by the Tehran Stock Exchange.

Holder: صندوق سرمایه گذاری .ا.ب .توسعه فولادمبارکه
Stake now: 1.23%

All dayLow impact

Major holder changeStocksHeld

Pure Energy Industries Steel (Private) raises stake in TSCA to 23.07%

The stake moved from 20.55% to 23.07%. From the shareholder register published by the Tehran Stock Exchange.

Holder: شرکت صنایع نیروانرژی پاک فولاد-سهامی خاص -
Stake now: 23.07%

All dayLow impact

Major holder changeStocksHeld

Mofid Market-Making Investment Fund raises stake in TSCA to 1.14%

The stake moved from 0% to 1.14%. From the shareholder register published by the Tehran Stock Exchange.

Holder: صندوق سرمایه گذاری .ا.بازارگردانی مفید
Stake now: 1.14%