# IOTF · Sumber Sinergi Makmur Tbk.

Canonical: https://tradeinc.app/en/stocks/IOTF
Generated: 2026-10-17T04:53:48.424Z

- Sector: Teknologi · Perangkat Keras & Peralatan Teknologi
- Close: 39 (2026-10-16)
- Market cap (IDR): 206291079813
- Free float: 31.95%

## Current shareholders

As of 2026-09-30 · source: https://www.idx.co.id/Media/yqjhhsee/peng-2026-09-00024-satu-persen.xlsx

| Holder | Type | Stake | Shares |
|---|---|---|---|
| ALAMSYAH | Individual | 48.3% | 2555000000 |
| GRACIA PUSPITA SUCIONO | Individual | 19.75% | 1045000000 |
| HANS DEMAS KOSASIH | Individual | 1.78% | 94154100 |

## Ownership by holder type

As of 2026-08-31 · source: https://www.idx.co.id/Media/y0vjakdz/peng-2026-08-00021-klasifikasi.xlsx

| Type | Stake |
|---|---|
| Individual | 99.59% |
| Investment Advisors | 0.18% |
| Bank | 0.16% |
| Private Bank | 0.04% |
| Corporate | 0.02% |
| Investment Manager | 0.01% |
| Securities Company | 0.01% |

## Ownership changes

Changes reported in IDX ownership filings, including directors and major shareholders. Unchanged daily snapshots and extractions below 70% confidence are omitted.

| Filed | Holder | Stake | Extraction confidence | Source |
|---|---|---|---|---|
| 2026-09-03 | ALAMSYAH | 18.67% → 48.3%; Shares: 987500000 → 2555000000 | 100% | [Source file](https://www.idx.co.id/Media/3e2hut4d/peng-2026-09-03-00066-lima-persen.xlsx) |

## Recent IDX disclosures

- 2026-10-07 — [Laporan Bulanan Registrasi Pemegang Efek](https://www.idx.id/StaticData/NewsAndAnnouncement/ANNOUNCEMENTSTOCK/From_EREP/202610/d423abca38_2c836dbaed.pdf) (read 2026-10-07T08:20:38.000Z)
- 2026-09-09 — [Laporan Bulanan Registrasi Pemegang Efek](https://www.idx.id/StaticData/NewsAndAnnouncement/ANNOUNCEMENTSTOCK/From_EREP/202609/c04ff996c3_0d42ee21b1.pdf) (read 2026-09-09T04:00:09.000Z)
- 2026-08-24 — [Penyampaian Laporan Tahunan & Keberlanjutan dan ESG (KOREKSI)](https://www.idx.id/StaticData/NewsAndAnnouncement/ANNOUNCEMENTSTOCK/From_EREP/202608/53235a0cd0_b910dd64d2.pdf) (read 2026-08-24T07:00:37.000Z)
- 2026-08-07 — [Laporan Bulanan Registrasi Pemegang Efek](https://www.idx.id/StaticData/NewsAndAnnouncement/ANNOUNCEMENTSTOCK/From_EREP/202608/e950826d60_81c3bade54.pdf) (read 2026-08-07T10:00:29.000Z)
- 2026-08-06 — [Laporan Penggunaan Dana Hasil Penawaran Umum (KOREKSI)](https://www.idx.id/StaticData/NewsAndAnnouncement/ANNOUNCEMENTSTOCK/From_EREP/202608/998247dd8e_4eac9f066a.pdf) (read 2026-08-06T04:00:09.000Z)
- 2026-07-09 — [Penjelasan atas Volatilitas Transaksi](https://www.idx.id/StaticData/NewsAndAnnouncement/ANNOUNCEMENTSTOCK/From_EREP/202607/5f6b8e5f4c_5cbe1aaa14.pdf) (read 2026-07-09T08:10:07.000Z)
- 2026-07-03 — [Laporan Bulanan Registrasi Pemegang Efek](https://www.idx.id/StaticData/NewsAndAnnouncement/ANNOUNCEMENTSTOCK/From_EREP/202607/2cef42298e_855146259e.pdf) (read 2026-07-03T09:50:08.000Z)
- 2026-07-02 — [Laporan Penggunaan Dana Hasil Penawaran Umum](https://www.idx.id/StaticData/NewsAndAnnouncement/ANNOUNCEMENTSTOCK/From_EREP/202607/baaf4aae83_ab1bb9d85b.pdf) (read 2026-07-02T03:30:08.000Z)
- 2026-06-08 — [Laporan Bulanan Registrasi Pemegang Efek](https://www.idx.id/StaticData/NewsAndAnnouncement/ANNOUNCEMENTSTOCK/From_EREP/202606/df9b87bfec_85b9232ffb.pdf) (read 2026-06-08T02:00:13.000Z)
- 2026-06-03 — [Ringkasan Risalah Rapat Umum Para Pemegang Saham Tahunan](https://www.idx.id/StaticData/NewsAndAnnouncement/ANNOUNCEMENTSTOCK/From_EREP/202606/d4bb97824d_fbb49c764c.pdf) (read 2026-06-03T06:00:34.000Z)
- 2026-05-11 — [Pemanggilan Rapat Umum Pemegang Saham Tahunan](https://www.idx.id/StaticData/NewsAndAnnouncement/ANNOUNCEMENTSTOCK/From_EREP/202605/6d320d126f_23ebe5407c.pdf) (read 2026-05-11T03:50:02.000Z)
- 2026-05-08 — [Laporan Bulanan Registrasi Pemegang Efek](https://www.idx.id/StaticData/NewsAndAnnouncement/ANNOUNCEMENTSTOCK/From_EREP/202605/3085e5a67c_298cf60d14.pdf) (read 2026-05-07T23:35:00.000Z)

## How this page is built

Sources: IDX disclosures and ownership filings, the issuer's shareholder register and monthly composition reports, and IDX end-of-day prices. Every row links to the document it came from.

Ownership figures are read from PDFs automatically. A filing whose extraction is pending or below 70% confidence is left out rather than shown as fact.

Not on this page: running trades, broker flow, orderbook depth and intraday prices. Those are in the signed-in terminal.

Research data, not investment advice.