Baker Bros. Advisors LBRX Position
Active4-Fund ConvergenceBaker Bros. Advisors held their position in LB PHARMACEUTICALS INC (LBRX) in Q4 2025, holding $4.5M worth of shares across 200,000 shares.
The position was first reported in Q3 2025 and has been tracked across 2 quarterly 13F filings.
LBRX is a convergence signal: 4 specialist biotech funds hold this stock, suggesting high institutional conviction.
There is an upcoming Phase 3 readout for LB-102 (50 mg tablet) in 442 days (Jun 30, 2027), making the timing of Baker Bros.'s position particularly relevant.
Short interest stands at 11.4% of float with 12.0 days to cover, indicating significant bearish positioning against Baker Bros.'s long thesis.
About LB PHARMACEUTICALS INC
Clinical‑stage biopharmaceutical company developing novel therapies for neuropsychiatric diseases (e.g. schizophrenia, bipolar depression). Lead candidate is LB‑102, a methylated derivative of amisulpride.
Full company profile →Short Interest
11.4%
12.0 days to cover
Baker Bros. Advisors LBRX Position History
Frequently Asked Questions
Does Baker Bros. Advisors own LBRX?
Yes. As of Q4 2025, Baker Bros. Advisors holds 200,000 shares of LB PHARMACEUTICALS INC (LBRX) valued at $4.5M. This data comes from their SEC 13F filing.
How many hedge funds own LBRX?
4 specialist biotech hedge funds currently hold LBRX, including Deep Track Capital, RA Capital Management, Commodore Capital. When 3 or more specialist funds hold the same stock, BiotechEdge flags it as a convergence signal.
When did Baker Bros. Advisors first buy LBRX?
Baker Bros. Advisors's position in LBRX was first reported in Q3 2025. 13F filings are reported with a 45-day delay, so the actual purchase may have occurred earlier in the quarter.
Is Baker Bros. Advisors's LBRX position increasing or decreasing?
Baker Bros. Advisors held their LBRX position unchanged in the most recent quarter.
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