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EquitiesMajor holder changeIranHeldMedium impact

Tameshk Nama Roshd Investment Fund raises stake in YASS to 10.48%

Crossed the 10% line. From the shareholder register published by the Tehran Stock Exchange.

Sep 23, 2026Stocksیاس

Recorded figures

Holder
صندوق سرمایه گذاری تمشک نمادرشد
Stake now
10.48%
Stake before
7.29%
Change (points)
up 3.19 points
Shares held
104,839,790
Line crossed
10%

As of Sep 23, 2026

Official source

The instrument in this event

From Sep 23, 2026 to todayup8.07%

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 65.84% of the shares.

HolderSharesShare
Traded Investment Fund Index

1.3billion

56.52%
Mahur Fixed Income Securities Investment Fund

68.2million

2.97%
Khwarazmi Investment Group (Public)

54.8million

2.38%
S.A. Market-Making Tak Taranj Fund

35.7million

1.55%
Tamin Atieh Human Capital Pasargad (Private)

28.3million

1.23%
Afranmad Sustainable Investment Fund

27.3million

1.19%

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
Sep 23, 2026
Major holder changeStocksHeld

S.A. Market-Making Tak Taranj Fund cuts stake in YASS to 3.31%

The stake moved from 4.74% to 3.31%. From the shareholder register published by the Tehran Stock Exchange.

Holder
صندوق .س .ا.بازارگردانی تاک ترنج
Stake now
3.31%
+3 more
As of Sep 23, 2026
All dayLow impact
Sep 22, 2026
Major holder changeStocksHeld

S.A. Market-Making Tak Taranj Fund raises stake in YASS to 4.74%

The stake moved from 3.4% to 4.74%. From the shareholder register published by the Tehran Stock Exchange.

Holder
صندوق .س .ا.بازارگردانی تاک ترنج
Stake now
4.74%
+3 more
As of Sep 22, 2026
All dayMedium impact
Sep 21, 2026
Major holder changeStocksHeld

Tameshk Nama Roshd Investment Fund raises stake in YASS to 7.29%

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

Holder
صندوق سرمایه گذاری تمشک نمادرشد
Stake now
7.29%
+4 more
As of Sep 21, 2026
All dayLow impact
Sep 26, 2026
Major holder changeStocksHeld

S.A. Market-Making Tak Taranj Fund raises stake in YASS to 4.5%

The stake moved from 3.31% to 4.5%. From the shareholder register published by the Tehran Stock Exchange.

Holder
صندوق .س .ا.بازارگردانی تاک ترنج
Stake now
4.5%
+3 more
As of Sep 26, 2026
All dayLow impact
Sep 27, 2026
Major holder changeStocksHeld

New major holder in YASS: Tamin Atieh Human Capital Pasargad (Private) at 2.83%

From the shareholder register published by the Tehran Stock Exchange.

Holder
شرکت تامین آتیه سرمایه انسانی پاسارگاد-س .خ -
Stake now
2.83%
+1 more
As of Sep 27, 2026