CollPlant Biotechnologies Ltd
CLGN- Exchange
- Nasdaq
- Industry
- Orthopedic, Prosthetic & Surgical Appliances & Supplies
- SEC CIK
- 0001631487
No open-market purchases or sales by CollPlant Biotechnologies Ltd insiders were filed in the last 90 days; 16 institutions reported holding it in 13F filings for Q2 2026, worth $582.4K in total; no superinvestor holds it.
Holders of 5% or more of CLGN
Holders whose latest Schedule 13D or 13G filing reports 5% or more of CollPlant Biotechnologies Ltd, largest stake first. The change is against the holder's previous filing.
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
5 Schedule 13D and 13G filings on CollPlant Biotechnologies Ltd, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Nov 28, 20256:03 AM ET | Sagy Ami | 13D/A | 12.90%1.64M shares | – | Nov 19, 2025 | SEC |
| Nov 7, 20259:23 AM ET | Loewenbaum Lilian S.and 9 others | 13D/A | 9.90%1.26M shares | 0.00 ppfrom 9.90% | Nov 6, 2025 | SEC |
| Oct 20, 20255:11 PM ET | Loewenbaum Lilian S.and 9 others | 13D/A | 9.90%1.26M shares | 0.00 ppfrom 9.90% | Oct 20, 2025 | SEC |
| Sep 30, 20254:38 PM ET | Loewenbaum Lilian S.and 6 others | 13D | 9.90%1.26M shares | −0.06 ppfrom 9.96% | Sep 30, 2025 | SEC |
| Jan 28, 20254:04 PM ET | Loewenbaum Lilian S.and 9 others | 13G/A | 9.96%1.14M shares | – | Dec 31, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell CollPlant Biotechnologies Ltd shares.
No Form 144 notices for CollPlant Biotechnologies Ltd are on file.