Spruce Street Capital LP: LB PHARMACEUTICALS INC (LBRX): Quarterly 13F Position History
As of Q2 2026, Spruce Street Capital LP reported 1,376,159 shares of LB PHARMACEUTICALS INC (LBRX), worth $44.7M and representing 8.8% of its 13F equity book. The position first appeared in Q4 2025 and has been disclosed across 3 13F-HR filings in Pactolio's tracked window.
- 1,376,159Shares Held (Latest Filing)
- $44.7MReported Market Value (Latest Filing)
- 8.8%Portfolio Weight (% of 13F Equity Book)
- 0Quarter-over-Quarter Share Change
- +$11.0MQuarter-over-Quarter Value Change
- 1,376,159Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 3 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q2 2026 | 1,376,159 | 0 | – | $44.7M | 8.8% | $32.5 |
| Q1 2026 | 1,376,159 | +370,566 | +36.9% | $33.6M | 8.1% | $24.4 |
| Q4 2025 | 1,005,593 | – | – | $22.4M | 7.4% | $22.3 |
Methodology & FAQ
How This Position History Is Sourced
Each row is one SEC Form 13F-HR filing disclosing this position. Share count, market value, and reported quarter are taken verbatim from the filing; portfolio weight is recomputed against the same filing's total reported equity book. Implied price-per-share is market value divided by shares, a quarter-end mark rather than the manager's cost basis. See the full methodology document for the normalization rules.
When did Spruce Street Capital LP first disclose a LBRX position in 13F-HR filings?
Spruce Street Capital LP first reported LB PHARMACEUTICALS INC (LBRX) on its 13F-HR filing for the period ending 2025-12-31 (Q4 2025). The position has appeared on 3 reported quarters within Pactolio's tracked window.
What was Spruce Street Capital LP's most recent quarter-over-quarter share-count change in LBRX?
Spruce Street Capital LP held the same 1,376,159 shares of LBRX between Q1 2026 and Q2 2026, so the reported share count was unchanged quarter-over-quarter.
Does the implied price-per-share represent Spruce Street Capital LP's cost basis in LBRX?
No. The implied price-per-share column is the 13F-HR reported market value divided by reported share count on the filing date (end of quarter). It is a quarter-end mark, not a cost basis or transaction price. Use it as a sanity check on the value column, not as an indicator of the manager's entry or exit price.