Ostin Technology Group Co., Ltd.
OST- Exchange
- Nasdaq
- Industry
- Electronic Components, NEC
- SEC CIK
- 0001803407
No open-market purchases or sales by Ostin Technology Group Co., Ltd. insiders were filed in the last 90 days; 10 institutions reported holding it in 13F filings for Q2 2026, worth $82.8K in total; no superinvestor holds it.
Holders of 5% or more of OST
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Ostin Technology Group Co., Ltd., largest stake first. The change is against the holder's previous filing.
No holder currently reports owning 5% or more of Ostin Technology Group Co., Ltd. on Schedule 13D or 13G.
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
18 Schedule 13D and 13G filings on Ostin Technology Group Co., Ltd., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Aug 14, 20252:39 PM ET | Streeterville Capital LLCand 2 others | 13G/A | 0.00%0 shares | −9.80 ppfrom 9.80%Below 5% | Aug 14, 2025 | SEC |
| Jul 15, 20254:00 PM ET | Ho Kok Hua | 13G/A | 0.00%0 shares | −6.85 ppfrom 6.85%Below 5% | Jul 9, 2025 | SEC |
| Jul 15, 20254:00 PM ET | Fan Hong-Yuan | 13G/A | 0.00%0 shares | −6.55 ppfrom 6.55%Below 5% | Jul 9, 2025 | SEC |
| Jun 30, 20259:15 AM ET | Streeterville Capital LLCand 2 others | 13G | 9.80%10.5M shares | New | Jun 30, 2025 | SEC |
| Jun 25, 20254:00 PM ET | Lo Sheng-Lun | 13G/A | 3.55%3.81M shares | −3.00 ppfrom 6.55%Below 5% | Jun 19, 2025 | SEC |
| Jun 25, 20254:00 PM ET | Liao Yen-Kai | 13G/A | 3.62%3.89M shares | −2.64 ppfrom 6.26%Below 5% | Jun 19, 2025 | SEC |
| Jun 13, 20254:00 PM ET | Hendri Jones | 13G/A | 3.03%3.26M shares | −3.67 ppfrom 6.70%Below 5% | Jun 9, 2025 | SEC |
| Jun 13, 20254:00 PM ET | Hsiao Tzu-Kai | 13G/A | 2.68%2.88M shares | −3.72 ppfrom 6.40%Below 5% | Jun 9, 2025 | SEC |
| Jun 13, 20254:00 PM ET | Hon Devid | 13G/A | 4.27%4.59M shares | −2.73 ppfrom 7.00%Below 5% | Jun 9, 2025 | SEC |
| Jun 13, 20254:00 PM ET | Fong Shih-Song | 13G/A | 4.50%4.83M shares | −2.05 ppfrom 6.55%Below 5% | Jun 9, 2025 | SEC |
| May 29, 20254:00 PM ET | Hon Devid | 13G | 7.00%7.52M shares | New | May 8, 2025 | SEC |
| May 29, 20254:00 PM ET | Ho Kok Hua | 13G | 6.85%7.36M shares | New | May 8, 2025 | SEC |
| May 29, 20254:00 PM ET | Lo Sheng-Lun | 13G | 6.55%7.04M shares | New | May 8, 2025 | SEC |
| May 29, 20254:00 PM ET | Fong Shih-Song | 13G | 6.55%7.04M shares | New | May 8, 2025 | SEC |
| May 29, 20254:00 PM ET | Hsiao Tzu-Kai | 13G | 6.40%6.88M shares | New | May 8, 2025 | SEC |
| May 29, 20254:00 PM ET | Fan Hong-Yuan | 13G | 6.55%7.04M shares | New | May 8, 2025 | SEC |
| May 29, 20256:18 AM ET | Liao Yen-Kai | 13G | 6.26%6.72M shares | New | May 8, 2025 | SEC |
| May 29, 20256:12 AM ET | Hendri Jones | 13G | 6.70%7.20M shares | New | May 8, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Ostin Technology Group Co., Ltd. shares.
No Form 144 notices for Ostin Technology Group Co., Ltd. are on file.