Xilio Therapeutics, Inc. - Common Stock (XLO)

WALTHAM, Mass., March 17, 2026 (GLOBE NEWSWIRE) -- Xilio Therapeutics, Inc. (Nasdaq: XLO), a clinical-stage biotechnology company discovering and developing masked immuno-oncology therapies for people living with cancer, today announced an upcoming poster presentation at the American Association for Cancer Research (AACR) Annual Meeting, taking place from April 17-22, 2026 at the San Diego Convention Center in San Diego, California.

WALTHAM, Mass., March 12, 2026 (GLOBE NEWSWIRE) -- Xilio Therapeutics, Inc. (Nasdaq: XLO), a clinical-stage biotechnology company discovering and developing masked immuno-oncology therapies for people living with cancer, today announced that it will implement a 1-for-14 reverse stock split of the issued shares of the company’s common stock, effective at 5:00 p.m. Eastern Time on March 13, 2026.

WALTHAM, Mass., March 02, 2026 (GLOBE NEWSWIRE) -- Xilio Therapeutics, Inc. (Nasdaq: XLO), a clinical-stage biotechnology company discovering and developing masked immuno-oncology therapies for people living with cancer, today announced that company management will participate in a fireside chat during the Leerink Partners Global Healthcare Conference on Monday, March 9, 2026 at 3:00 p.m. ET.

WALTHAM, Mass., March 02, 2026 (GLOBE NEWSWIRE) -- Xilio Therapeutics, Inc. (Nasdaq: XLO), a clinical-stage biotechnology company discovering and developing tumor-activated immuno-oncology therapies for people living with cancer, today announced that, effective March 1, 2026, the company granted non-qualified stock options to purchase 50,050 shares of its common stock to two new employees under Xilio Therapeutics’ 2022 Inducement Stock Incentive Plan.

WALTHAM, Mass., Feb. 11, 2026 (GLOBE NEWSWIRE) -- Xilio Therapeutics, Inc. (Nasdaq: XLO), a clinical-stage biotechnology company discovering and developing masked immuno-oncology therapies for people living with cancer, today announced the pricing of an underwritten offering of pre-funded warrants to purchase 74,780,300 shares of common stock at a price to investors of $0.5349 per pre-funded warrant (the “pre-funded warrants”). Each pre-funded warrant is exercisable for one share of common stock at an exercise price of $0.0001 per share. The pre-funded warrants will be exercisable immediately and will be exercisable until all of the pre-funded warrants are exercised in full. The offering is expected to close on or about February 13, 2026, subject to satisfaction of customary closing conditions. All of the pre-funded warrants are being offered by Xilio.

Received $35.8 million in gross proceeds from Series B warrant exercises, including full exercise by Coastlands Capital, Frazier Life Sciences and Gilead Sciences, Inc., and extended anticipated cash runway into second quarter of 2027

Reported late-breaking Phase 2 data at SITC for vilastobart demonstrating a 40% ORR in heavily pretreated patients with MSS mCRC without liver metastases and high plasma tumor mutational burden 

40% ORR in heavily pre-treated patients with MSS mCRC without liver metastases and with high plasma tumor mutational burden (TMB)

Preclinical data support best-in-class potential of masked T cell engager programs and platform utilizing Xilio’s ATACR and SEECR formats, including efficient masking, potent anti-tumor activity and broad therapeutic index

WALTHAM, Mass., Nov. 03, 2025 (GLOBE NEWSWIRE) -- Xilio Therapeutics, Inc. (Nasdaq: XLO), a clinical-stage biotechnology company discovering and developing tumor-activated immuno-oncology therapies for people living with cancer, today announced that, effective November 1, 2025, the company granted a non-qualified stock option to purchase 5,700 shares of its common stock to one new employee under Xilio Therapeutics’ 2022 Inducement Stock Incentive Plan.

WALTHAM, Mass., Oct. 30, 2025 (GLOBE NEWSWIRE) -- Xilio Therapeutics, Inc. (Nasdaq: XLO), a clinical-stage biotechnology company discovering and developing tumor-activated immuno-oncology therapies for people living with cancer, today announced that it will present a late-breaking poster presentation for vilastobart, a tumor-activated, Fc-enhanced anti-CTLA-4, at the Society for Immunotherapy of Cancer (SITC) 40th Annual Meeting, taking place from November 5-9, 2025 in National Harbor, Maryland. The Phase 2 data will highlight response rate for vilastobart in combination with atezolizumab in patients with microsatellite stable (MSS) metastatic colorectal cancer (mCRC) and high plasma tumor mutational burden.

WALTHAM, Mass., Oct. 03, 2025 (GLOBE NEWSWIRE) -- Xilio Therapeutics, Inc. (Nasdaq: XLO), a clinical-stage biotechnology company discovering and developing tumor-activated immuno-oncology therapies for people living with cancer, today announced multiple upcoming poster presentations at the Society for Immunotherapy of Cancer (SITC) 40th Annual Meeting, taking place from November 6-9, 2025 at the Gaylord National Convention Center in National Harbor, Maryland.

WALTHAM, Mass., Oct. 02, 2025 (GLOBE NEWSWIRE) -- Xilio Therapeutics, Inc. (Nasdaq: XLO), a clinical-stage biotechnology company discovering and developing tumor-activated immuno-oncology therapies for people living with cancer, today announced that, effective October 1, 2025, the company granted non-qualified stock options to purchase 26,000 shares of its common stock to three new employees under Xilio Therapeutics’ 2022 Inducement Stock Incentive Plan.

Phase 1 data for efarindodekin alfa (XTX301) demonstrate promising anti-tumor activity in patients with advanced solid tumors

Announced updated Phase 2 data at ASCO for vilastobart, a tumor-activated, Fc-enhanced, anti-CTLA-4, demonstrating deep and durable responses and a meaningfully differentiated safety and tolerability profile for an anti-CTLA-4 combination therapy

CORAL GABLES, Fla., Aug. 04, 2025 (GLOBE NEWSWIRE) -- Catalyst Pharmaceuticals, Inc. ("Catalyst" or "Company") (Nasdaq: CPRX) today announced the appointment of Daniel Curran, MD, to its Board of Directors.

WALTHAM, Mass., Aug. 01, 2025 (GLOBE NEWSWIRE) -- Xilio Therapeutics, Inc. (Nasdaq: XLO), a clinical-stage biotechnology company discovering and developing tumor-activated immuno-oncology therapies for people living with cancer, today announced that, effective August 1, 2025, the company granted non-qualified stock options to purchase 134,000 shares of its common stock to two new employees under Xilio Therapeutics’ 2022 Inducement Stock Incentive Plan.

WALTHAM, Mass., July 02, 2025 (GLOBE NEWSWIRE) -- Xilio Therapeutics, Inc. (Nasdaq: XLO), a clinical-stage biotechnology company discovering and developing tumor-activated immuno-oncology therapies for people living with cancer, today announced that, effective July 1, 2025, the company granted non-qualified stock options to purchase 10,700 shares of its common stock to two new employees under Xilio Therapeutics’ 2022 Inducement Stock Incentive Plan.

WALTHAM, Mass., June 10, 2025 (GLOBE NEWSWIRE) -- Xilio Therapeutics, Inc. (Nasdaq: XLO), a clinical-stage biotechnology company discovering and developing tumor-activated immuno-oncology therapies for people living with cancer, today announced the appointment of Akintunde (Tunde) Bello, Ph.D., to the company’s board of directors.

Total gross proceeds of up to $150.0 million before the end of 2026 if all Series B warrants and Series C warrants are exercised for cash

WALTHAM, Mass., June 03, 2025 (GLOBE NEWSWIRE) -- Xilio Therapeutics, Inc. (Nasdaq: XLO), a clinical-stage biotechnology company discovering and developing tumor-activated immuno-oncology therapies for people living with cancer, today announced that, effective June 1, 2025, the company granted non-qualified stock options to purchase 181,300 shares of its common stock to five new employees under Xilio Therapeutics’ 2022 Inducement Stock Incentive Plan.

WALTHAM, Mass., June 02, 2025 (GLOBE NEWSWIRE) -- Xilio Therapeutics, Inc. (Nasdaq: XLO), a clinical-stage biotechnology company discovering and developing tumor-activated immuno-oncology therapies for people living with cancer, today announced the pricing of an underwritten public offering of pre-funded warrants to purchase 66,676,000 shares of common stock (the “pre-funded warrants”), accompanied by Series A warrants to purchase 66,676,000 shares of common stock (or, in certain circumstances, pre-funded warrants) (the “Series A warrants”), Series B warrants to purchase 66,676,000 shares of common stock (or, in certain circumstances, pre-funded warrants) (the “Series B warrants”) and Series C warrants to purchase 66,676,000 shares of common stock (or, in certain circumstances, pre-funded warrants) (the “Series C warrants”). The combined public offering price of one pre-funded warrant, one Series A warrant, one Series B warrant and one Series C warrant, which are being sold together but are immediately separable, is $0.7499, which is equal to the combined offering price of the pre-funded warrants, Series A warrants, Series B warrants and Series C warrants, less the $0.0001 per share exercise price of the pre-funded warrants. The offering is expected to close on or about June 5, 2025, subject to satisfaction of customary closing conditions. All of the securities are being offered by Xilio.

WALTHAM, Mass., June 02, 2025 (GLOBE NEWSWIRE) -- Xilio Therapeutics, Inc. (Nasdaq: XLO), a clinical-stage biotechnology company discovering and developing tumor-activated immuno-oncology therapies for people living with cancer, today announced that it is commencing an underwritten public offering of pre-funded warrants to purchase shares of common stock accompanied by Series A warrants to purchase shares of common stock (or, in certain circumstances, pre-funded warrants), Series B warrants to purchase shares of common stock (or, in certain circumstances, pre-funded warrants) and Series C warrants to purchase shares of common stock (or, in certain circumstances, pre-funded warrants). All of the securities to be sold in the proposed offering will be offered by Xilio. The proposed offering is subject to market and other conditions, and there can be no assurance as to whether or when the offering may be completed or as to the actual size or terms of the offering.

26% preliminary objective response rate observed in heavily pre-treated patients with metastatic microsatellite stable colorectal cancer (MSS CRC) without liver metastases

Updated Phase 2 data to be presented at ASCO for vilastobart, a tumor-activated, Fc-enhanced, anti-CTLA-4, in combination with atezolizumab in patients with metastatic microsatellite stable colorectal cancer (MSS CRC)