Track every registration update on the InsiderAlpha IPO tracker.
Updated Jul 16, 2026 · Last SEC filing 2026-06-05
LB PHARMACEUTICALS INC (LBRX) has filed 7 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-06-05. 3 Form 8-K material event filings were reported by LBRX in the last 90 days. 1 Form 144 notices of proposed sale were filed for LBRX stock. InsiderAlpha tracks every LBRX SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0001691082 |
|---|
| Form 4 filings (90d) | 7 |
|---|---|
| Form 8-K filings (90d) | 3 |
| Form 144 notices (90d) | 1 |
| Latest Form 4 filing | 2026-06-05 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Vida Ventures GP III, L.L.C. | Insider | J — Other acquisition / disposition | 547.6K | — | — | SEC | |
| Vida Ventures GP III, L.L.C. | Insider | J — Other acquisition / disposition | 1.3K | — | — | SEC | |
| Vida Ventures GP III, L.L.C. | Insider | P — Open-market purchase | 332.6K | $15.00 | $4.99M | SEC | |
| Vida Ventures GP III, L.L.C. | Insider | P — Open-market purchase | 767 | $15.00 | $12K | SEC | |
| Deep Track Biotechnology Master Fund, Ltd. | Insider | J — Other acquisition / disposition | 686.1K | — | — | SEC | |
| Deep Track Biotechnology Master Fund, Ltd. | Insider | P — Open-market purchase | 2.00M | $15.00 | $30.00M | SEC | |
| Deep Track Biotechnology Master Fund, Ltd. | Insider | P — Open-market purchase | 666.7K | $15.00 | $10.00M | SEC | |
| Nussbaum Ran | Insider | J — Other acquisition / disposition | 411.7K | — | — | SEC | |
| Nussbaum Ran | Insider | P — Open-market purchase | 1.00M | $15.00 | $15.00M | SEC | |
| Pontifax Management 4 G.P. (2015) Ltd. | Insider | J — Other acquisition / disposition | 411.7K | — | — | SEC | |
| Pontifax Management 4 G.P. (2015) Ltd. | Insider | P — Open-market purchase | 1.00M | $15.00 | $15.00M | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for LB PHARMACEUTICALS INC (LBRX). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| RUFFOLO ROBERT R | 1 | — |
| Hemrajani Rekha | 1 | — |
| Garland J. Scott | 1 | — |
| Nussbaum Ran | 1 | — |
| Kane William P Jr | 1 | — |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in LBRX insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
Open the live LBRX dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.