Obook Holdings Inc.
OWLS- Exchange
- Nasdaq
- Industry
- Services-Prepackaged Software
- SEC CIK
- 0002025416
In the last 90 days, Obook Holdings Inc. insiders filed 3 open-market purchases and 0 sales; 7 institutions reported holding it in 13F filings for Q2 2026, worth $1.51M in total; no superinvestor holds it.
Holders of 5% or more of OWLS
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Obook Holdings Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Wang Chun Kai | 13G/A | 53.00%39.3M shares | +8.60 ppfrom 44.40% | Mar 6, 20262 filings | Mar 11, 2026 | SEC |
| Hsieh Chung Han | 13G/A | 21.30%10.2M shares | +9.80 ppfrom 11.50% | Mar 6, 20262 filings | Mar 11, 2026 | SEC |
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
4 Schedule 13D and 13G filings on Obook Holdings Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Mar 11, 202610:31 AM ET | Wang Chun Kai | 13G/A | 53.00%39.3M shares | +8.60 ppfrom 44.40% | Oct 16, 2025 | SEC |
| Mar 11, 20269:57 AM ET | Hsieh Chung Han | 13G/A | 21.30%10.2M shares | +9.80 ppfrom 11.50% | Oct 16, 2025 | SEC |
| Mar 6, 202610:35 AM ET | Wang Chun Kai | 13G | 44.40%39.3M shares | New | Oct 16, 2025 | SEC |
| Mar 6, 202610:11 AM ET | Hsieh Chung Han | 13G | 11.50%10.2M shares | New | Oct 16, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Obook Holdings Inc. shares.
No Form 144 notices for Obook Holdings Inc. are on file.