Jade Biosciences Announces Closing of Public Offering of Common Stock, Including Full Exercise of Underwriters' Option to Purchase Additional Shares

SAN FRANCISCO and VANCOUVER, British Columbia, June 05, 2026 (GLOBE NEWSWIRE) -- Jade Biosciences, Inc. (“Jade” or the “Company”) (Nasdaq: JBIO), a clinical-stage biotechnology company focused on developing best-in-class therapies for autoimmune diseases, today announced that it has closed its previously announced public offering of 11,500,000 shares of its common stock, including 1,500,000 shares sold pursuant to the underwriters' full exercise of their option to purchase additional shares. The shares of common stock were sold to the public at a price of $15.00 per share. The gross proceeds to Jade from the offering, before deducting the underwriting discounts and commissions and other offering expenses, were $172.5 million. All of the shares of common stock sold in the public offering were sold by Jade.

GlobeNewsWire • Jun 5, 2026

Jade Biosciences Announces Proposed Underwritten Public Offering

SAN FRANCISCO and VANCOUVER, British Columbia, June 03, 2026 (GLOBE NEWSWIRE) -- Jade Biosciences, Inc. (“Jade” or the “Company”) (Nasdaq: JBIO), a clinical-stage biotechnology company focused on developing best-in-class therapies for autoimmune diseases, today announced that it intends to offer and sell, subject to market and other conditions, shares of its common stock or, in lieu of common stock to certain investors that so choose, pre-funded warrants to purchase shares of its common stock, in a proposed underwritten public offering. All of the shares of common stock and pre-funded warrants to be sold in the proposed offering are being offered by Jade. In addition, Jade intends to grant the underwriters a 30-day option to purchase up to an additional 15% of the securities offered in the public offering, at the public offering price, less underwriting discounts and commissions. There can be no assurance as to whether or when the proposed public offering may be completed, or as to the actual size or terms of the proposed offering.

GlobeNewsWire • Jun 3, 2026

Jade Biosciences Announces Pricing of Public Offering of Common Stock

SAN FRANCISCO and VANCOUVER, British Columbia, June 03, 2026 (GLOBE NEWSWIRE) -- Jade Biosciences, Inc. (“Jade” or the “Company”) (Nasdaq: JBIO), a clinical-stage biotechnology company focused on developing best-in-class therapies for autoimmune diseases, today announced the pricing of a public offering of 10,000,000 shares of its common stock. The shares of common stock are being sold to the public at a price of $15.00 per share. The gross proceeds to Jade from the offering, before deducting the underwriting discounts and commissions and other offering expenses, are expected to be $150.0 million, excluding any exercise of the underwriters' option to purchase additional shares. The offering is expected to close on June 5, 2026, subject to the satisfaction of customary closing conditions. In addition, Jade has granted the underwriters a 30-day option to purchase up to an additional 1,500,000 shares of common stock at the public offering price, less underwriting discounts and commissions. All of the shares of common stock to be sold in the public offering are being sold by Jade.

GlobeNewsWire • Jun 4, 2026

Jade Biosciences' JADE101 Delivers Deep IgA Cuts, Clearing Path for Kidney Trials

Jade Biosciences NASDAQ: JBIO said interim results from a Phase 1 healthy volunteer study of JADE101 showed rapid and durable reductions in serum IgA, supporting the company's plan to advance the antibody into patient studies for IgA nephropathy.

MarketBeat • Jun 2, 2026

Why Is Jade Biosciences Stock Trading Lower On Monday?

Jade Biosciences, Inc. (NASDAQ:JBIO) reported interim Phase 1 results for JADE101 in immunoglobulin A nephropathy (IgAN), showing substantial and sustained reductions in immunoglobulin A (IgA), a favorable safety profile, and pharmacokinetic data that could support a convenient dosing schedule.

Benzinga • Jun 1, 2026

Jade Biosciences, Inc. (JBIO) Discusses Positive Interim Results From JADE101 Phase I Healthy Volunteer Study and Development Plans Transcript

Jade Biosciences, Inc. (JBIO) Discusses Positive Interim Results From JADE101 Phase I Healthy Volunteer Study and Development Plans Transcript

Seeking Alpha • Jun 1, 2026

Jade Biosciences Announces Positive Interim Phase 1 Results for JADE101 Demonstrating Potential Best-in-Class Profile and Every-12-Week Dosing in IgA Nephropathy

SAN FRANCISCO and VANCOUVER, British Columbia, June 01, 2026 (GLOBE NEWSWIRE) -- Jade Biosciences, Inc. (the “Company” or “Jade”) (Nasdaq: JBIO), a clinical-stage biotechnology company focused on developing best-in-class therapies for autoimmune diseases, today announced positive interim results from its Phase 1 trial evaluating JADE101, a novel, investigational anti-A Proliferation-Inducing Ligand (APRIL) monoclonal antibody in development for the treatment of immunoglobulin A nephropathy (IgAN). JADE101 is designed with ultra-high binding affinity to selectively block APRIL, a key driver of pathogenic IgA production in IgAN, a chronic autoimmune disease that frequently affects young adults and can lead to end-stage kidney disease over a patient's lifetime. These results will be presented in a focused oral session during the 63rd European Renal Association (ERA) Congress, taking place in Glasgow, Scotland, from June 3-6, 2026.

GlobeNewsWire • Jun 1, 2026

Jade Biosciences to Host Conference Call and Webcast on June 1, 2026, at 8:00 a.m. ET to Discuss Interim Phase 1 Healthy Volunteer Results for JADE101, a Novel, Potentially Best-in-Class Anti-APRIL Monoclonal Antibody in Development for IgA Nephropathy

SAN FRANCISCO and VANCOUVER, British Columbia, May 29, 2026 (GLOBE NEWSWIRE) -- Jade Biosciences, Inc. (the “Company” or “Jade”) (Nasdaq: JBIO), a clinical-stage biotechnology company focused on developing best-in-class therapies for autoimmune diseases, today announced that it will host a conference call and webcast on Monday, June 1, 2026, at 8:00 a.m. ET to discuss results from the ongoing Phase 1 healthy volunteer study of JADE101. The data are expected to define the dosing strategy and further characterize JADE101's clinical profile as a potentially differentiated, disease-modifying anti–A Proliferation-Inducing Ligand (APRIL) monoclonal antibody for the treatment of immunoglobulin A nephropathy (IgAN).

GlobeNewsWire • May 29, 2026

Jade Biosciences Announces First Participant Dosed in Phase 2 JUNIPER Clinical Trial of JADE101 in IgA Nephropathy

SAN FRANCISCO and VANCOUVER, British Columbia, May 26, 2026 (GLOBE NEWSWIRE) -- Jade Biosciences, Inc. (the “Company” or “Jade”) (Nasdaq: JBIO), a clinical-stage biotechnology company focused on developing best-in-class therapies for autoimmune diseases, today announced that the first participant has been dosed in JUNIPER, the Company's Phase 2 trial evaluating JADE101 in participants with immunoglobulin A nephropathy (IgAN). JADE101 is designed with ultra-high binding affinity to selectively block APRIL, a key driver of pathogenic IgA production in IgAN, a chronic autoimmune disease that frequently affects young adults and can lead to end-stage kidney disease over a patient's lifetime. Interim data from JUNIPER are expected in 2027.

GlobeNewsWire • May 26, 2026

Jade Biosciences Announces First Participant Dosed in First-in-Human Phase 1 Clinical Trial of JADE201, a Novel Half-Life Extended Afucosylated Anti-BAFF Receptor Monoclonal Antibody

SAN FRANCISCO and VANCOUVER, British Columbia, May 26, 2026 (GLOBE NEWSWIRE) -- Jade Biosciences, Inc. (“the Company” or “Jade”), (Nasdaq: JBIO), a clinical-stage biotechnology company focused on developing best-in-class therapies for autoimmune diseases, today announced the first participant has been dosed in a first-in-human (FIH) Phase 1 clinical trial of JADE201. JADE201 is an investigational, half-life extended, afucosylated monoclonal antibody targeting the B cell activating factor receptor (BAFF-R) designed to deplete B cells through a dual mechanism of action: enhanced antibody effector function and BAFF signal blockade. The Company expects interim FIH data in 2027.

GlobeNewsWire • May 26, 2026