LBRX LB PHARMACEUTICALS INC: institutional ownership and insider trading
122 funds reported holding $994M of LB PHARMACEUTICALS INC in their latest 13F filings; in Q2 2026 funds net bought $52.1M, with 40 new positions and 3 funds selling out; over the last 12 months insiders bought $0 and sold $0 on the open market.
Famous investors holding LBRX
- Izzy Englander (Millennium Management): $8.41M, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $7.01M, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $1.58M, 0.0% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $439K, 0.0% of the portfolio
Largest institutional holders of LBRX
- Deep Track Capital, LP — $109M
- BlackRock, Inc. (BLK) — $88.7M
- RA CAPITAL MANAGEMENT, L.P. — $71.7M
- Trails Edge Capital Partners, LP — $49.4M
- JPMORGAN CHASE & CO (JPM, AMJB, VYLD, JPM-PC, JPM-PD, JPM-PJ, JPM-PK, JPM-PL, JPM-PM) — $48.9M
- Commodore Capital LP — $48.7M
- TCG Crossover Management, LLC — $47.0M
- Caligan Partners LP — $46.7M
- Spruce Street Capital LP — $44.7M
- Nantahala Capital Management, LLC — $34.2M
Recent LBRX insider trades
- Sep 12, 2025: Kroin David bought 2,666,666 shares ($40.0M)
- Sep 12, 2025: Pontifax Management 4 G.P. (2015) Ltd. bought 1,000,000 shares ($15.0M)
- Sep 12, 2025: Nussbaum Ran bought 1,000,000 shares ($15.0M)
- Sep 12, 2025: Belldegrun Arie bought 333,333 shares ($5.00M)
5%+ owners
- Commodore Capital LP: 6.8% (Schedule 13G/A, filed May 15, 2026)
- BlackRock, Inc.: 6.3% (Schedule 13G/A, filed Jul 29, 2026)
- JPMORGAN CHASE & CO: 5.2% (Schedule 13G, filed Jul 16, 2026)
- TCG Crossover GP II, LLC: 5.0% (Schedule 13G/A, filed Aug 14, 2026)
- Caligan Partners LP: 5.0% (Schedule 13G, filed May 15, 2026)