Parabilis Medicines Reports Second Quarter 2026 Financial Results and Provides Business Updates
Rhea-AI Summary
Parabilis Medicines (Nasdaq: PBLS) reported second quarter 2026 results highlighted by a strategic collaboration with Regeneron and a completed upsized IPO. The Regeneron deal brought $125 million in upfront consideration and equity, with potential for up to approximately $2.2 billion in future milestone payments plus tiered royalties.
Parabilis raised $770.5 million in its IPO and ended June 30, 2026 with $1.1 billion in cash, cash equivalents and marketable securities, which is expected to fund operations into 2030. The company advanced lead Helicon™ candidate zolucatetide toward a planned Phase 3 trial in desmoid tumors and additional Wnt/β‑catenin-driven indications.
Quarterly R&D expenses were $39.4 million and G&A expenses were $11.7 million, leading to a net loss of $52.5 million, higher than the prior-year period primarily due to increased investment in clinical and preclinical programs and public-company infrastructure.
Positive
- Regeneron collaboration $125M upfront and equity, up to ~$2.2B milestones plus royalties
- Cash, cash equivalents and marketable securities $1.1B at June 30, 2026, expected to fund operations into 2030
- IPO proceeds $770.5M raised at $20.00 per share, plus $75M concurrent Regeneron private placement
- Zolucatetide progressing toward planned Phase 3 registrational trial in desmoid tumors with multiple additional Wnt-driven indications in development
- Balance sheet transformation from $27.7M cash at December 31, 2025 to $1.1B at June 30, 2026
Negative
- Net loss $52.5M for Q2 2026 versus $34.8M in prior-year quarter
- R&D expenses increased to $39.4M from $30.1M year over year
- G&A expenses rose to $11.7M from $6.4M, reflecting higher public-company and headcount costs
- Accumulated deficit widened to $639.3M as of June 30, 2026
News Explained
The completed IPO added common shares, reducing existing holders’ percentage ownership while Regeneron supplied $75 million in equity funding.
The Regeneron collaboration is announced, but its related private placement and Parabilis’s upsized IPO are described as completed; the IPO issued common stock, adding shares that reduce existing holders’ percentage ownership absent offsetting changes.
The
The next stated development checkpoints are FDA discussions in the
Market reaction after 2Q26 earnings report: PBLS -4.97% in the Aug 13 session
In the Aug 13 session, PBLS declined 4.97%, reflecting a moderate negative market reaction. Argus tracked a peak move of +5.5% during that session. Our momentum scanner triggered 16 alerts that day, indicating notable trading interest and price volatility.
Data tracked by StockTitan Argus on the day of publication.
Key Figures
Historical Context
| Date | Event | Sentiment | 24h Move | Catalyst |
|---|---|---|---|---|
| Jun 11 | IPO closing | Positive | -10.1% | Upsized IPO closed with full underwriter option and concurrent Regeneron private placement. |
24h Move is the share-price change in the day after each event; other market factors may also have contributed.
The available financing-event history showed positive corporate news followed by a -10.06% 24-hour reaction.
Key Terms
wnt/β-catenin-driven diseases medical
familial adenomatous polyposis medical
adamantinomatous craniopharyngioma medical
β-catenin:TCF interaction technical
AI-generated analysis. How Rhea-AI works. Not financial advice.
Advanced zolucatetide across multiple Wnt/β-catenin-driven diseases, including progress toward planned Phase 3 registrational trial in desmoid tumors
Announced strategic research collaboration with Regeneron to develop Antibody-Helicon Conjugates, expanding application of company's proprietary HeliconTM platform; received
Ended the second quarter with a strong financial position with
CAMBRIDGE, Mass., Aug. 13, 2026 (GLOBE NEWSWIRE) -- Parabilis Medicines (Nasdaq: PBLS), a clinical-stage biopharmaceutical company dedicated to creating extraordinary medicines for patients with serious diseases by unlocking historically undruggable targets, today reported financial results and business updates for the second quarter ended June 30, 2026.
“This quarter marked meaningful progress toward our long-term vision as we continued advancing zolucatetide across multiple Wnt/β-catenin-driven diseases, including toward planned registrational development in desmoid tumors, while also extending the reach of our Helicon™ platform through our strategic research collaboration with Regeneron focused on developing Antibody-Helicon Conjugates," said Mathai Mammen, M.D., Ph.D., Chairman, President and Chief Executive Officer of Parabilis Medicines.
Dr. Mammen continued, "The body of encouraging clinical evidence for zolucatetide has strengthened our conviction both in its potential to transform the treatment of patients with Wnt/β-catenin-driven diseases and in the broader ability of Helicons to unlock biologically important intracellular targets that have historically been beyond the reach of conventional therapeutic approaches. With a strong balance sheet following our successful initial public offering, we believe we are well positioned to deliver important clinical and regulatory milestones over the coming quarters as we continue advancing medicines designed to target the causal biology and deliver meaningful impact for patients with serious diseases."
Recent Business Highlights & Anticipated Milestones
Continued Advancement of Zolucatetide
Zolucatetide is Parabilis' lead investigational Helicon and the first and only direct inhibitor of the β-catenin:TCF interaction in clinical development. The investigational therapy is being evaluated as a “pipeline in a product” across multiple Wnt/β-catenin-driven diseases, with promising early clinical data demonstrating its potential in desmoid tumors, with familial adenomatous polyposis (FAP) and adamantinomatous craniopharyngioma (ACP) as potential genetically anchored expansion opportunities.
Desmoid tumors
- Abstract accepted for oral presentation at the European Society for Medical Oncology (ESMO) Congress 2026 (Oct. 23-27, Madrid), with a plan to share clinical data from the February data cut from the ongoing Phase 1/2 study of zolucatetide in desmoid tumor patients
- Expect to present more mature clinical data from the ongoing Phase 1/2 study in desmoid tumors during the fourth quarter of 2026
- Expect to engage with the U.S. Food and Drug Administration (FDA) during the fourth quarter of 2026 to discuss and align on the planned registrational Phase 3 trial
- On track to initiate Phase 3 registrational trial in the first half of 2027
Familial adenomatous polyposis (FAP)
- Expect to initiate enrollment in a dedicated clinical cohort evaluating zolucatetide in patients with FAP during the second half of 2026
- Anticipate disclosing additional FAP data in the first quarter of 2027
Adamantinomatous craniopharyngioma (ACP)
- Expect to share clinical data from additional patients in the first half of 2027 for ACP, a locally aggressive tumor arising near the pituitary gland associated with significant lifelong morbidity and no approved drug therapies, with a conservatively estimated 15-year prevalence of approximately 5,000 to 9,000 patients in the U.S.
Additional Wnt-driven tumors
- Continue to enroll patients across additional cohorts evaluating zolucatetide across additional indications with high unmet medical need, including hepatocellular carcinoma (HCC), colorectal cancer (CRC) in rational combinations, and other Wnt-driven solid tumors
- Correspondence published in the New England Journal of Medicine (NEJM) demonstrates durable clinical and radiologic response to zolucatetide in a patient with recurrent ameloblastoma – a locally aggressive tumor of the jaw – driven by Wnt/β-catenin pathway alterations, providing further clinical validation of zolucatetide's mechanism of action
Expanded the Application of the Helicon Platform
During the second quarter of 2026, Parabilis continued to expand the reach of its proprietary Helicon platform through strategic partnerships and advancement of its wholly-owned discovery pipeline.
- Announced a strategic collaboration with Regeneron Pharmaceuticals, Inc. focused on developing Antibody-Helicon Conjugates (AHCs), a novel therapeutic modality combining Regeneron's VelocImmune® antibody technologies with Parabilis' proprietary Helicon platform to selectively target undruggable and challenging intracellular disease-driving proteins; Parabilis received
$125 million , including$50 million in upfront consideration and a$75 million equity investment, and the collaboration provides the potential for up to approximately$2.2 billion in development, regulatory and commercial milestone payments, plus up to low double-digit tiered royalties - Continued advancing multiple wholly owned Helicon-based preclinical programs targeting historically undruggable intracellular proteins, including ERG and allosteric ARON degraders in prostate cancer and a β-catenin degrader program
Strengthened Leadership and Governance
Parabilis continued to strengthen its leadership team and Board of Directors to support the Company's next phase of growth as a public company.
- Expanded the Company’s executive leadership team through the appointments of Helen Ho, Ph.D., as Chief Business & Strategy Officer, and Tom Kotarakos as Chief Financial Officer
- Appointed Alan M. Sebulsky to the Board of Directors, bringing more than three decades of biopharmaceutical finance and operational leadership experience
Completed Initial Public Offering
During the quarter, Parabilis successfully completed its upsized initial public offering, raising a total of
- Closed upsized initial public offering of common stock, including the full exercise of the underwriters' option to purchase additional shares, at an initial public offering price of
$20.00 per share - Completed a concurrent private placement with Regeneron resulting in gross proceeds of approximately
$75 million - Began trading on the Nasdaq Global Select Market under the ticker symbol "PBLS" on June 10, 2026
Second Quarter Financial Results
Cash position: Cash, cash equivalents and marketable securities were
R&D expenses: Research and development expenses were
G&A expenses: General and administrative expenses were
Net loss: Net loss was
About Parabilis Medicines
Parabilis Medicines (Nasdaq: PBLS) is a clinical-stage biopharmaceutical company dedicated to creating extraordinary medicines for patients with serious diseases by unlocking biologically important targets long considered undruggable. The company has pioneered a new class of alpha-helical peptides – Helicons™ – capable of modulating intracellular proteins that have historically been beyond the reach of conventional medicines. The company’s lead investigational medicine, zolucatetide, is the first and only direct inhibitor of the β-catenin:TCF interaction, a central node in the Wnt/β-catenin pathway that has eluded drug developers for decades. Zolucatetide is being evaluated in the clinic across multiple Wnt/β-catenin-driven diseases, including desmoid tumors, familial adenomatous polyposis (FAP), adamantinomatous craniopharyngioma (ACP) and a range of other solid tumor indications. Beyond zolucatetide, Parabilis is advancing additional Helicon-based programs focused on other challenging targets where we believe our medicines could have life-altering impact. For more information, visit www.parabilismed.com or follow us on LinkedIn.
Forward-Looking Statements
This press release contains “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, each as amended. The words “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “potential,” “predict,” “project,” “should,” “target,” “would” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. These forward-looking statements include, but are not limited to, express or implied statements regarding: the clinical development of zolucatetide for the treatment of desmoid tumors, FAP, ACP and other rare, Wnt-driven tumors, including the initiation, timing, progress, results and future data releases of our ongoing and planned clinical trials; the expected initiation and timing of the Company’s planned Phase 3 registrational trial in desmoid tumors; the expected timing and results of the ongoing Phase 1/2 study in desmoid tumors; the expected enrollment and timing of certain patient cohorts in Wnt-driven tumors; the expected timing and results of and anticipated payments under the Company’s collaboration agreement with Regeneron; the expected timing and results of the Company’s preclinical development of its ERG degrader, ARON degrader and β-catenin degrader development candidates; the potential of the Company’s Helicon™ technology platform; expectations regarding the development of any future product candidates using the Company’s Helicon™ technology platform; expectations regarding the efficacy, tolerability, and commercial potential of zolucatetide; and expectations for the Company’s uses of capital, expenses and financial results, including its cash runway into 2030.
Any forward-looking statements in this press release are based on management’s current expectations and beliefs and are subject to a number of risks and uncertainties that could negatively affect the Company’s business, operating results, financial condition and stock value. Factors that could cause actual events or results to differ materially from those expressed or implied by any forward-looking statements contained in this press release include, without limitation: risks relating to the Company’s research and development activities; the Company’s ability to execute on its strategy including obtaining the requisite regulatory approvals on the expected timeline, if at all; uncertainties relating to preclinical and clinical development activities; the Company’s dependence on third parties to conduct clinical trials, manufacture its product candidates and develop and commercialize its product candidates, if approved; the Company’s ability to attract, integrate and retain key personnel; risks related to the Company’s financial condition and need for substantial additional funds in order to complete development activities and commercialize a product candidate, if approved; risks related to regulatory developments and approval processes of the U.S. Food and Drug Administration and comparable foreign regulatory authorities; risks related to establishing and maintaining the Company’s intellectual property protections; and risks related to the competitive landscape for the Company’s product candidates; as well as other risks and uncertainties described in greater detail in “Risk Factors,” in the Company’s most recent Quarterly Report on Form 10-Q, as well as discussions of potential risks, uncertainties, and other important factors in the Company’s subsequent filings with the Securities and Exchange Commission. Any forward-looking statements represent the Company’s views only as of today and should not be relied upon as representing its views as of any subsequent date. The Company expressly disclaims any obligation or undertaking to release publicly any updates or revisions to any forward-looking statements contained herein to reflect any change in its expectations or any changes in events, conditions or circumstances on which any such statement is based, except as required by law, and claims the protection of the safe harbor for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995.
Media Contact
Jessica Freifeld
media@parabilismed.com
Investor Contact:
Tom Kotarakos
investors@parabilismed.com
| Parabilis Medicines, Inc. Condensed Consolidated Balance Sheets (in thousands) (unaudited) | ||||||||
| June 30, | December 31, | |||||||
| 2026 | 2025 | |||||||
| Assets | ||||||||
| Current assets: | ||||||||
| Cash and cash equivalents | $ | 1,087,060 | $ | 27,711 | ||||
| Marketable securities | 33,637 | — | ||||||
| Prepaid expenses and other current assets | 4,699 | 1,647 | ||||||
| Total current assets | 1,125,396 | 29,358 | ||||||
| Property and equipment, net | 6,718 | 6,715 | ||||||
| Restricted cash | 2,855 | 2,855 | ||||||
| Operating lease right-of-use assets | 36,007 | 39,360 | ||||||
| Other assets | 4,286 | 2,532 | ||||||
| Total assets | $ | 1,175,262 | $ | 80,820 | ||||
| Liabilities, convertible preferred stock and stockholders’ equity (deficit) | ||||||||
| Current liabilities: | ||||||||
| Accounts payable | $ | 18,525 | $ | 17,272 | ||||
| Accrued expenses and other current liabilities | 19,972 | 18,630 | ||||||
| Operating lease liabilities, current portion | 7,592 | 7,174 | ||||||
| Deferred revenue, current portion | 10,371 | — | ||||||
| Finance lease liabilities, current portion | 669 | 638 | ||||||
| Term loan, net of discount | 5,710 | 13,077 | ||||||
| Total current liabilities | 62,839 | 56,791 | ||||||
| Operating lease liabilities, net of current portion | 32,413 | 36,341 | ||||||
| Finance lease liabilities, net of current portion | 1,128 | 1,470 | ||||||
| Deferred revenue, net of current portion | 31,148 | — | ||||||
| Other liabilities | — | 2,742 | ||||||
| Total liabilities | 127,528 | 97,344 | ||||||
| Commitments and contingencies | ||||||||
| Convertible preferred stock | — | 509,971 | ||||||
| Stockholders’ equity (deficit): | ||||||||
| Preferred stock | — | — | ||||||
| Common stock | 12 | — | ||||||
| Non-voting common stock | — | — | ||||||
| Additional paid-in capital | 1,687,023 | 15,009 | ||||||
| Accumulated other comprehensive loss | (18 | ) | — | |||||
| Accumulated deficit | (639,283 | ) | (541,504 | ) | ||||
| Total stockholders’ equity (deficit) | 1,047,734 | (526,495 | ) | |||||
| Total liabilities, convertible preferred stock and stockholders’ equity (deficit) | $ | 1,175,262 | $ | 80,820 | ||||
| Parabilis Medicines, Inc. Condensed Consolidated Statements of Operations and Comprehensive Loss (in thousands, except share and per share amounts) (unaudited) | ||||||||||||||||
| Three Months Ended June 30, | Six Months Ended June 30, | |||||||||||||||
| 2026 | 2025 | 2026 | 2025 | |||||||||||||
| Collaboration revenue | $ | 148 | $ | — | $ | 148 | $ | — | ||||||||
| Operating expenses: | ||||||||||||||||
| Research and development | 39,377 | 30,126 | 77,130 | 64,031 | ||||||||||||
| General and administrative | 11,657 | 6,394 | 21,357 | 12,730 | ||||||||||||
| Total operating expenses | 51,034 | 36,520 | 98,487 | 76,761 | ||||||||||||
| Loss from operations | (50,886 | ) | (36,520 | ) | (98,339 | ) | (76,761 | ) | ||||||||
| Other income (expense): | ||||||||||||||||
| Interest income | 4,189 | 1,049 | 6,618 | 2,306 | ||||||||||||
| Interest expense | (210 | ) | (396 | ) | (502 | ) | (795 | ) | ||||||||
| Sublease income - related party | — | 1,057 | — | 2,114 | ||||||||||||
| Change in fair value of simple agreement for future equity | (5,556 | ) | — | (5,556 | ) | — | ||||||||||
| Total other (expense) income, net | (1,577 | ) | 1,710 | 560 | 3,625 | |||||||||||
| Net loss | $ | (52,463 | ) | $ | (34,810 | ) | $ | (97,779 | ) | $ | (73,136 | ) | ||||
| Cumulative dividends on convertible preferred stock | (14,492 | ) | (10,184 | ) | (32,181 | ) | (19,965 | ) | ||||||||
| Deemed dividend upon down-round of convertible preferred stock | — | — | (7,875 | ) | — | |||||||||||
| Net loss allocable to common stockholders | $ | (66,955 | ) | $ | (44,994 | ) | $ | (137,835 | ) | $ | (93,101 | ) | ||||
| Net loss per share allocable to common stockholders, basic and diluted | $ | (2.32 | ) | $ | (22.28 | ) | $ | (8.86 | ) | $ | (46.13 | ) | ||||
| Weighted average common shares outstanding, basic and diluted | 28,908,277 | 2,019,111 | 15,553,335 | 2,018,354 | ||||||||||||
| Comprehensive loss: | ||||||||||||||||
| Net loss | $ | (52,463 | ) | $ | (34,810 | ) | $ | (97,779 | ) | $ | (73,136 | ) | ||||
| Change in unrealized gains (losses) on marketable securities | (18 | ) | (5 | ) | (18 | ) | (21 | ) | ||||||||
| Comprehensive loss | $ | (52,481 | ) | $ | (34,815 | ) | $ | (97,797 | ) | $ | (73,157 | ) | ||||
