Companies / Lb Pharmaceuticals Inc
Lb Pharmaceuticals Inc
Nasdaq: LBRXCIK 1691082NEW YORK, NY
Financials
Ownership
32.3M shares outstanding · as of Aug 5, 2026
Ownership
| 10%+ / strategic | 11.94% | 3,850,416 |
| Institutions | 68.19% | 21,996,722 |
| Public float | 19.88% | 6,412,037 |
% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 6
View all →| Insider | % of shares | Shares |
|---|---|---|
| — | — | |
Deep Track Capital, LP10% owner | — | — |
| — | — | |
Kroin David10% owner | — | — |
Lenz Robert A.Director | — | — |
Ruffolo Robert RDirector | — | — |
Institutional holders 77
View all →| Holder | Value | % of shares |
|---|---|---|
| $88.74M | 8.48% | |
| $74.63M | 10.39% | |
| $54.46M | 6.85% | |
| $38.84M | 5.41% | |
| $35.87M | 5.00% | |
| $33.39M | 4.65% | |
| $31.07M | 4.33% | |
| $26.71M | 3.72% | |
| $24.77M | 3.45% | |
| $22.78M | 2.86% |
Activity
InsidersInstitutions
What insiders are doing in this stock (Form 4).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Jun 3, 2026 | Ruffolo Robert R Director | Grant | Stock Option (Right to Buy) | — | +10K | 10,000 0.03% of shares | low |
| Mar 6, 2026 | Lenz Robert A. Director | Grant | Stock Option (Right to Buy) | — | +20K | 20,000 0.06% of shares | low |
| Feb 6, 2026 | Deep Track Biotechnology Master Fund, Ltd. 10% owner | Buy | Pre-Funded Warrants (Right to Buy) | — | +94K | 93,925 0.29% of shares | low |
| Feb 6, 2026 | Deep Track Biotechnology Master Fund, Ltd. 10% owner | Buy | Pre-Funded Warrants (Right to Buy) | — | +378K | 378,444 1.17% of shares | low |
5%+ ownership events
Schedule 13D / 13G
| Filer | Stance | % of class |
|---|---|---|
| RA Capital Management, L.P. | Passive13G/A | — |
| BlackRock Portfolio Management LLC | Passive13G/A | — |
| JPMORGAN CHASE & CO | Passive13G | — |
| BlackRock, Inc. | Passive13G | — |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| LBRX | Common Stock | 50180M108 |