LB Pharmaceuticals Inc
LBRX- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001691082
No open-market purchases or sales by LB Pharmaceuticals Inc insiders were filed in the last 90 days; 114 institutions reported holding it in 13F filings for Q2 2026, worth $965.9M in total; no superinvestor holds it.
Holders of 5% or more of LBRX
Holders whose latest Schedule 13D or 13G filing reports 5% or more of LB Pharmaceuticals Inc, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Deep Track Capital, LP | 13D | 14.90%3.35M shares | New | Sep 19, 20251 filing | Sep 19, 2025 | SEC |
| TCG Crossover GP II, LLC | 13G | 7.80%1.75M shares | New | Sep 18, 20251 filing | Sep 18, 2025 | SEC |
| Ra Capital Management, L.P. | 13G | 7.50%1.68M shares | New | Sep 19, 20251 filing | Sep 19, 2025 | SEC |
| Pontifax Management 4 G.P. (2015) Ltd. | 13D | 6.30%1.41M shares | New | Sep 25, 20251 filing | Sep 25, 2025 | SEC |
| Commodore Capital LP | 13G | 5.50%1.23M shares | New | Sep 18, 20251 filing | Sep 18, 2025 | SEC |
| Trails Edge Capital Partners, LP | 13G | 5.00%1.27M shares | New | Dec 31, 20251 filing | Dec 31, 2025 | 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
6 Schedule 13D and 13G filings on LB Pharmaceuticals Inc, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Dec 31, 20255:00 PM ET | Trails Edge Capital Partners, LPand 2 others | 13G | 5.00%1.27M shares | New | Dec 24, 2025 | SEC |
| Sep 25, 202510:55 AM ET | Pontifax Management 4 G.P. (2015) Ltd.and 3 others | 13D | 6.30%1.41M shares | New | Sep 12, 2025 | SEC |
| Sep 19, 20254:47 PM ET | Ra Capital Management, L.P.and 3 others | 13G | 7.50%1.68M shares | New | Sep 12, 2025 | SEC |
| Sep 19, 20254:30 PM ET | Deep Track Capital, LPand 3 others | 13D | 14.90%3.35M shares | New | Sep 12, 2025 | SEC |
| Sep 18, 20254:24 PM ET | TCG Crossover GP II, LLCand 2 others | 13G | 7.80%1.75M shares | New | Sep 12, 2025 | SEC |
| Sep 18, 20254:01 PM ET | Commodore Capital LPand 3 others | 13G | 5.50%1.23M shares | New | Sep 11, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell LB Pharmaceuticals Inc shares.
No Form 144 notices for LB Pharmaceuticals Inc are on file.