Climb Bio
Market cap $604M 58.7M shares (10-Q, Oct 30, 2026) × $10.29 close Nov 6, 2026
Most recent annual filing: 2026-03-05
Pipeline (8 active programs)
Capital (as filed)
- Cash
- $39.7M cash and cash equivalents · Sep 30, 2026 (10-Q)
- Short-term investments
- $166M Sep 30, 2026
- Long-term investments
- $22.2M Sep 30, 2026
- Operating cash flow
- −$12.0M quarter Jun 30, 2026 → Sep 30, 2026, year-to-date difference (10-Q)
- As stated in coverage
- $228M cash, runway 2H 2028 per the update of Nov 5, 2026 — the company's own words as read there, not the filed figure
Offering documents (4)
- 2026-11-05 S-3ASR · Shelf registration
- 2026-06-12 424B5 · At-the-market program up to $100M
- 2026-06-09 424B3 · Resale (selling stockholders)
- 2026-05-29 S-3 · Shelf registration
Cash, investments and operating cash flow are the company's own XBRL facts as filed with the SEC, each shown with its period end and tag. As-stated figures come from the company's own words as read in Biotech Distilled coverage, dated, and routinely count securities and planned financing that a balance sheet does not. Offering rows are the SEC cover pages as filed. Not investment advice. Figures as of Nov 7, 2026.
Biotech Distilled coverage (8)
- 2026-10-27 UPDATE: Climb Bio (CLYM) - The Leaky Sieve 🔒 Paid
- 2026-09-03 UPDATE: Climb Bio (CLYM) - The Sweeper Delivers Its Number 🔒 Paid
- 2026-08-07 UPDATE: Climb Bio (CLYM) - The Sweeper Gets a Date 🔒 Paid
- 2026-06-11 UPDATE: Climb Bio (CLYM) - The ITP Bar Clears
- 2026-06-05 UPDATE: Climb Bio (CLYM) - The Sweeper Clears Its First Bar
- 2026-05-06 UPDATE: Climb Bio (CLYM) - The SC Wedge Lands 🔒 Paid
- 2026-04-29 UPDATE: Climb Bio (CLYM) - The Smart Money Doubles Down 🔒 Paid
- 2026-04-23 Climb Bio (CLYM) - Scientific Deep Dive for Budoprutug and Pipeline Products 🔒 Paid
Articles open on Substack. Some are subscriber-only; those marked ★ Distilled Pro are for Distilled Pro members.
Verdict history (8 calls)
Every verdict Biotech Distilled has published on Climb Bio, oldest first — the full history, never a selection. How calls are scored: the track record.
- 2026-04-23 Watch Climb Bio (CLYM) - Scientific Deep Dive for Budoprutug and Pipeline Products Intriguing antibody engineering with early biological validation, but a leaky patent moat, active IP litigation, and late-to-market position make this a clinical data trade rather than a buy-and-hold investment.
- 2026-04-29 Speculative buy speculative UPDATE: Climb Bio (CLYM) - The Smart Money Doubles Down A $110M at-market PIPE led by a roster of healthcare-specialist funds (RA Capital, Adage, Cormorant, Redmile, et al.) provides a meaningful Bayesian update on the molecule's diligence and closes the dilution gap well past H2 2026 data readouts.
- 2026-05-06 Buy core UPDATE: Climb Bio (CLYM) - The SC Wedge Lands SC budoprutug matches IV at ~80% B-cell depletion in healthy volunteers, proving the commercial wedge is real, while the catalyst calendar compressed to a June ITP readout six weeks out.
- 2026-06-05 Buy core UPDATE: Climb Bio (CLYM) - The Sweeper Clears Its First Bar CLYM116 cleared safety through 320 mg in 49 healthy volunteers with zero SAEs/DLTs, removing the most binary failure mode for the novel sweeper mechanism, while the June ITP patient readout remains the next key binary.
- 2026-06-11 Buy core UPDATE: Climb Bio (CLYM) - The ITP Bar Clears Budoprutug delivered >90% B-cell depletion and +111K platelet rise at 24 weeks in heavily pretreated ITP patients, with 3 of 4 rituximab-failures responding, providing independent clinical validation of the CD19-over-CD20 thesis.
- 2026-08-07 Buy core UPDATE: Climb Bio (CLYM) - The Sweeper Gets a Date CLYM116 PK/PD reveal pinned to September 3, Mabworks deal deepened at unchanged economics, and a dense Q4 catalyst cluster is fully funded; holding through the catalyst cluster remains defensible while trimming into the +28% run is also noted as reasonable.
- 2026-09-03 Buy core UPDATE: Climb Bio (CLYM) - The Sweeper Delivers Its Number CLYM116 posted a ~29-day half-life (~3x sibeprenlimab) with >90% free APRIL suppression and 60-75% IgA knockdown through 12 weeks off a single dose, converting the dosing-frequency wedge from modeled to measured; PrisMN replication remains the Q4 lead-asset valuation event.
- 2026-10-27 Hold UPDATE: Climb Bio (CLYM) - The Leaky Sieve PrisMN 200 mg cohort showed incomplete B-cell depletion (74% vs. 100% in Phase 1b) due to 2x faster drug clearance in proteinuric patients, deferring complete-remission data to 2027 just as obinutuzumab nears approval; mechanism is intact but the right dose is undecided and the lead-asset payoff is delayed.
- Long call · opened Apr 29, 2026 at $8.78 · +17.2% vs XBI +18.1% (Nov 6, 2026)
Every verdict Biotech Distilled has published on this company, in order, with the post it came from — the full history, never a selection. Position figures are the same ones shown on /track-record, computed by the same method. Editorial opinion, not investment advice.
Timing, in the company's words (4 quotes from 3 filings)
Sentences quoted verbatim from the company's SEC filings, newest filing first. Each sits under the filing it appeared in; the "matched to" tag names the calendar row it was read for.
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“Enrollment is now ongoing in the second cohort (600 mg) of the PrisMN trial, and we expect to have initial data, including B-cell and anti-PLA2R data from the low dose cohort (200 mg at 12-24 weeks) at a medical meeting in the fourth quarter of 2026.”
matched to Budoprutug · topline data · read as fourth quarter of 2026 / matched to Budoprutug SC formulation · readout other · read as fourth quarter of 2026 -
“We anticipate reporting PK and PD data from our Phase 1 study in healthy volunteers at our next R&D Spotlight on September 3, 2026, and expect additional Phase 1 updates from us and our partner, Mabworks at a medical meeting later this year.”
matched to CLYM116 · readout other · read as September 3, 2026
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“Anticipate data, including safety and biomarker data from the Global study in the fourth quarter of 2026.”
matched to Budoprutug SC formulation · readout other · read as fourth quarter of 2026
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“Anticipate data, including safety and biomarker data from the Global study in the fourth quarter of 2026.”
matched to Budoprutug SC formulation · readout other · read as fourth quarter of 2026
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Timing sentences quoted from the company's own SEC filings, each under the filing it appeared in. The 'matched to' tag is the calendar row the sentence was read for; the filing is the source. Not investment advice.
Filings & releases (42)
SEC filings from EDGAR and press releases captured from the company's investor-relations site, newest first. Releases captured from May 7, 2026; filings from March 2026. Summaries come from the BD update that read the document; "BD extracted" counts point at the pipeline table above. All companies →
- Nov 5, 2026S-3ASRAutomatic shelf registrationSummary on the 8-K
- Nov 5, 2026ReleaseClimb Bio Reports Third Quarter 2026 Financial Results and Provides Business UpdatesSummary on the 8-K
- Nov 5, 20268-KCurrent report: results of operations, Reg FD disclosure · EX-99.1Q3 earnings surface three under-the-radar thesis updates: Fidelity emerges at 15% ownership, the ATM drew its first $10.1M at $10.00/share in October, and the Delaware summary-judgment hearing on the $157.5M Acelyrin milestone fight has now been held — with a ruling pending.
- Nov 5, 202610-QQuarterly reportSummary on the 8-K
- Nov 4, 2026ReleaseClimb Bio to Present New Data for Budoprutug in Immune Thrombocytopenia at the 68th American Society of Hematology Annual Meeting and Exposition
- Nov 2, 2026ReleaseClimb Bio to Present at Guggenheim 3rd Annual Healthcare Innovation Conference
- Oct 26, 20268-KCurrent report: Reg FD disclosure, other events · EX-99.1→ BD updateThe long-awaited PrisMN Phase 2 data landed at ASN over the weekend, and the market's -13.5% reaction today is less about a clinical failure than a dose-complexity reveal: budoprutug works immunologically at 200 mg, but proteinuric patients clear it ≥2× faster than healthy volunteers, meaning the real efficacy story lives at 600–1000 mg doses with clinical remission data pushed to 2027.BD extracted 2 program updates from this document → CLYM pipeline
- Oct 24, 2026ReleaseClimb Bio Presents Initial PrisMN Phase 2 Data from Budoprutug in pMN at an Oral Session at ASN Kidney Week 2026→ BD updateSummary on the 8-K of Oct 26, 2026
- Oct 23, 2026ReleaseClimb Bio and Mabworks Announce CLYM116/MIL116 Data Demonstrating Deep, Durable APRIL Suppression and ~70% Gd-IgA1 Reduction at ASN Kidney Week 2026Summary on the 8-K
- Oct 23, 20268-KCurrent report: Reg FD disclosure, other events · EX-99.1CLYM116's sweeper mechanism just got its most rigorous validation yet — dual-study, 88-subject dataset at ASN confirms ~33-day half-life (3.5x sibeprenlimab) and ≥90% free APRIL suppression through 12 weeks, while the stock sits 30% below the September data high.BD extracted 1 program update from this document → CLYM pipeline
- Oct 2, 2026ReleaseClimb Bio to Present New Data at American Society of Nephrology (ASN) Kidney Week 2026 for CLYM116 and BudoprutugThe Phase 2 PrisMN data — the "main event" catalyst I've been tracking all year — just got selected for an oral presentation at ASN Kidney Week on October 24. The stock is down 25% from the September 3 CLYM116 peak, which means subscribers could be looking at a de-risked entry into the most important data readout in the budoprutug thesis.BD extracted 1 program update from this document → CLYM pipeline
- Sep 3, 2026ReleaseClimb Bio Announces CLYM116 Phase 1 Data Demonstrating Prolonged Half-Life and Best-In-Class APRIL Suppression Supporting Every-12-Week Dosing in IgA Nephropathy→ BD updateSummary on the 8-K
- Sep 3, 20268-KCurrent report: Reg FD disclosure · EX-99.1→ BD updateThe CLYM116 sweeper mechanism just delivered its money number: a ~29-day half-life (3x sibeprenlimab), >90% APRIL suppression from a single dose, and 60-75% IgA knockdown held through 12 weeks — the half-life reveal I told readers to set their alarms for has landed clean, and Phase 3 is now a 2027 target.BD extracted 1 program update from this document → CLYM pipeline
- Aug 14, 20268-KCurrent report: other events
- Aug 6, 2026ReleaseClimb Bio Reports Second Quarter 2026 Financial Results and Provides Business UpdatesBD extracted 2 program updates from this document → CLYM pipeline
- Aug 6, 20268-KCurrent report: results of operations · EX-99.1
- Aug 6, 202610-QQuarterly reportBD extracted 1 program update from this document → CLYM pipeline
- Jul 7, 2026SCHEDULE 13D/A13D amendment
- Jul 1, 20268-KCurrent report: officer / director change
- Jun 12, 20268-KCurrent report: material agreement, other events
- Jun 12, 2026424B5Prospectus supplement (offering)
- Jun 11, 2026ReleaseClimb Bio Announces Initial Phase 1b Data Demonstrating On-Target Clinical Activity for Budoprutug in Immune Thrombocytopenia at EHA Congress 2026BD extracted 1 program update from this document → CLYM pipeline
- Jun 11, 20268-KCurrent report: other events
- Jun 9, 2026424B3Prospectus (resale / update)
- Jun 8, 20268-KCurrent report: officer / director change, shareholder vote · EX-99.1
- Jun 5, 2026ReleaseClimb Bio Presents CLYM116 Initial Phase 1 Safety Data and Translational Modeling Results at European Renal Association (ERA) Congress 2026 Supporting Continued Development
- Jun 5, 20268-KCurrent report: other events
- May 29, 2026S-3Shelf registration
- May 26, 2026ReleaseClimb Bio to Present on CLYM116 and Budoprutug Programs at European Renal Association (ERA) Congress 2026
- May 14, 2026ReleaseClimb Bio to Present New Budoprutug Clinical Data at European Hematology Association (EHA) 2026 Congress
- May 12, 2026ReleaseClimb Bio to Present at Upcoming Investor Conferences
- May 7, 2026ReleaseClimb Bio Reports First Quarter 2026 Financial Results and Provides Business Updates
- May 7, 20268-KCurrent report: results of operations · EX-99.1
- May 7, 202610-QQuarterly report
- May 5, 20268-KCurrent report: Reg FD disclosure · EX-99.1
- Apr 29, 2026SCHEDULE 13D/A13D amendment
- Apr 28, 20268-KCurrent report: material agreement, unregistered sale of equity, other events · EX-99.1
- Apr 24, 2026DEFA14AProxy soliciting material
- Apr 24, 2026DEF 14AProxy statement
- Apr 3, 20268-KCurrent report: officer / director change
- Mar 5, 20268-KCurrent report: results of operations · EX-99.1
- Mar 5, 202610-KAnnual report
12 more filings (13G holder notices, S-8, proxy material, SEC correspondence …)
- Nov 5, 2026SCHEDULE 13G/A13G amendmentSummary on the 8-K
- Oct 28, 2026SCHEDULE 13GPassive >5% holder (13G)
- Oct 27, 2026SCHEDULE 13GPassive >5% holder (13G)
- Aug 14, 2026SCHEDULE 13G/A13G amendment
- Jul 8, 2026SCHEDULE 13GPassive >5% holder (13G)
- Jun 9, 2026EFFECTRegistration effective
- Jun 5, 2026CORRESPCORRESP
- Jun 4, 2026UPLOADUPLOAD
- May 4, 2026DForm D (exempt offering)
- Apr 24, 2026ARSAnnual report to shareholders
- Apr 10, 2026PRE 14APRE 14A
- Mar 5, 2026S-8Employee plan registration