What Changed
Price Move History
- Daily moves over 5%
- 66 252 sessions, October 24, 2025 to October 26, 2026
- Largest daily move
- -42.8% close of September 2, 2026
- 1-year change
- -91.8% closing prices, October 24, 2025 to October 26, 2026
- 1-month change
- -44.2% closing prices, September 25, 2026 to October 26, 2026
Company Description
TScan Therapeutics, Inc. (Nasdaq: TCRX) is a clinical-stage biotechnology company in the field of T cell receptor-engineered T cell (TCR-T) therapies for the treatment of patients with cancer. According to company disclosures, TScan focuses on developing TCR-T product candidates for hematologic malignancies and solid tumors, and also applies its discovery platform to T cell-mediated autoimmune disorders. The company’s voting common stock trades on The Nasdaq Global Market under the symbol TCRX.
Core focus: TCR-T therapies for cancer
TScan describes itself as a clinical-stage biotechnology company focused on the development of T cell receptor (TCR)-engineered T cell (TCR-T) therapies for patients with cancer. Its lead TCR-T therapy candidate, TSC-101, is designed for patients with hematologic malignancies undergoing allogeneic hematopoietic cell transplantation (HCT) to prevent relapse by treating residual disease. This program is being evaluated in the ALLOHA™ Phase 1 heme trial (NCT05473910), where patients receive TSC-101 following standard-of-care HCT.
In addition to its hematologic malignancies program, TScan has developed multiple TCR-T therapy candidates for solid tumors. These candidates are evaluated in the PLEXI-T™ Phase 1 solid tumor trial (NCT05973487), where the company’s strategy is to treat patients with multiple TCR-T therapy candidates to address tumor heterogeneity and resistance related to target or HLA loss.
Hematologic malignancies (heme) program
The company’s lead program centers on TSC-101, a TCR-T therapy candidate intended to treat residual disease and prevent relapse in patients with acute myeloid leukemia (AML), acute lymphoblastic leukemia (ALL), or myelodysplastic syndromes (MDS) undergoing allogeneic HCT. TScan reports that TSC-101 is being studied in the ALLOHA Phase 1 heme trial, with key endpoints including safety and efficacy, and exploratory endpoints such as donor chimerism and minimal residual disease status.
Company communications describe TSC-101 as designed to eliminate recipient hematopoietic cells and improve relapse-free survival in patients with AML, ALL, or MDS undergoing allogeneic HCT. TScan has also implemented a commercial-ready manufacturing process for TSC-101 that shortens manufacturing time and reduces ex vivo T cell expansion, and has transferred this process to an external contract development and manufacturing organization for use in ongoing and planned studies.
TScan has reached agreement with the U.S. Food and Drug Administration (FDA) on a pivotal trial design for TSC-101 that mirrors the ALLOHA Phase 1 trial using a biologically assigned internal control arm. Patients who are HLA-A*02:01-positive with an HLA-A*02-negative donor will be assigned to the investigational arm, while other patients will be assigned to the control arm. The company indicates that this design is intended to enable efficient enrollment and streamlined assessment of study endpoints.
Solid tumor program and ImmunoBank
For solid tumors, TScan is developing multiplexed TCR-T therapy candidates and continues to expand its ImmunoBank, described as a repository of therapeutic TCRs that recognize diverse targets and are associated with multiple HLA types. The ImmunoBank is intended to support customized multiplex TCR-T therapies for patients with a variety of cancers, and underpins the PLEXI-T Phase 1 solid tumor trial.
The PLEXI-T trial evaluates both singleplex and multiplex TCR-T therapy candidates in patients with solid tumors. TScan reports that it has treated patients at higher dose levels with singleplex TCR-T and has dosed initial patients with multiplex TCR-T therapy. The company has subsequently paused further enrollment in the PLEXI-T trial as part of a strategic prioritization, while it focuses on preclinical development of in vivo engineering approaches for solid tumors.
TargetScan platform and autoimmune disorders
Beyond oncology, TScan highlights its TargetScan platform, which it uses to discover novel targets in T cell-mediated autoimmune disorders. Company updates describe TargetScan as being applied to identify targets in diseases such as ankylosing spondylitis, systemic sclerosis (scleroderma), ulcerative colitis, and birdshot uveitis, and to discover targets for Crohn’s disease in collaboration with Amgen. TScan has presented early findings from these autoimmunity programs at scientific conferences, including the American College of Rheumatology Convergence.
Strategic prioritization and operating focus
TScan has disclosed a strategic prioritization under which it will prioritize clinical development of its hematologic malignancies program, particularly TSC-101, and pause further enrollment in its solid tumor Phase 1 trial. The company plans to focus preclinical efforts on in vivo-engineered TCR-T approaches for solid tumors and on target discovery in autoimmunity. As part of this strategy, TScan implemented a workforce reduction and expects associated cost savings, which it states extend its cash runway into the second half of 2027.
To support advancement of the pivotal trial for TSC-101, TScan has introduced a fixed dosing regimen into the ALLOHA trial and, in agreement with the FDA, plans to dose additional patients at this level to support its proposed recommended dose range. The company also plans to expand HLA coverage of its heme program through additional investigational new drug (IND) applications for further TCR-T product candidates.
Regulatory and public company status
TScan Therapeutics, Inc. files reports with the U.S. Securities and Exchange Commission (SEC) as a public company. Its voting common stock, with a par value of $0.0001 per share, is registered under Section 12(b) of the Securities Exchange Act of 1934 and listed on The Nasdaq Global Market under the trading symbol TCRX. The company has reported on matters such as clinical program updates, strategic prioritization, financial results, annual stockholder meeting outcomes, and executive compensation and retention programs through current reports on Form 8-K.
Research, collaborations, and scientific presence
Company disclosures reference research collaborations and scientific presentations that support its pipeline. For example, revenue has been attributed in part to research activities under a collaboration agreement with Amgen. TScan has also presented data at meetings such as the American Society of Hematology (ASH), the American Society of Gene and Cell Therapy (ASGCT), and the American College of Rheumatology (ACR), highlighting clinical data from the ALLOHA heme trial, the PLEXI-T solid tumor trial, and target discovery in autoimmune diseases using TargetScan.
TScan also participates in investor and healthcare conferences, where it provides corporate updates and discusses its development programs and operational plans. These activities are described in press releases and corresponding Form 8-K filings.
How TScan fits within biotechnology and TCR-T development
Within the biotechnology sector, TScan positions itself around TCR-engineered T cell therapies that are tailored to specific HLA types and targets identified through its discovery platforms. Its work spans hematologic malignancies, solid tumors, and autoimmune disorders, with clinical-stage programs in oncology and earlier-stage efforts in autoimmunity. The company emphasizes the potential for multiplexed TCR-T approaches and in vivo engineering to address challenges such as tumor heterogeneity and resistance.
Stock Performance
TScan Therapeutics (TCRX) closed at $0.1897 on October 26, 2026. Over the past 12 months, the price has lost 91.8%.
TCRX Metrics & Rankings
Price returns through October 26, 2026. Month-to-date and YTD include the first trading day. Ranking links may use different dates.
Latest News
TScan Therapeutics has 10 recent news articles. Of the recent coverage, 2 articles coincided with positive price movement and 8 with negative movement. Key topics include earnings, clinical trial, conferences. View all TCRX news →
SEC Filings
TScan Therapeutics has filed 10 recent SEC filings, including 5 Form 8-K, 2 Form 4, 1 Form DEF 14A, 1 Form PRE 14A. The most recent filing was submitted on October 26, 2026. SEC filings provide transparency into a company's financial condition, material events, and regulatory compliance. View all TCRX SEC filings →
Financial Highlights
TScan Therapeutics generated $10.3M in revenue in FY2025, operating income reached -$135.8M, and net income was -$129.8M. Diluted earnings per share stood at -$1.00. The company generated -$135.3M in operating cash flow. The current ratio was 8.41, measuring current assets divided by current liabilities.
Upcoming Events
Preclinical data release
First IND filing
Cash runway through H2 2027
Phase 1 initiation
ALLOHA-2 topline readout
ALLOHA-2 topline data
TScan Therapeutics has 6 upcoming scheduled events. The next event, "Preclinical data release", is scheduled for January 1, 2027 (in 66 days). 1 of them is a financing or capital event, such as a dividend or a debt maturity. Investors can track these dates to stay informed about potential catalysts that may affect the TCRX stock price.
Short Interest History
Short interest in TScan Therapeutics (TCRX) currently stands at 2.5 million shares, up 9.0% from the previous reporting period, representing 4.0% of the float. Since October 2025, short interest has increased by 42.7%.
Days to Cover History
Days to cover for TScan Therapeutics (TCRX) currently stands at 3.3 days, up 180.2% from the previous period. The ratio is the reported short interest divided by the average daily trading volume. Across the settlements charted above, it has ranged from 1.0 to 7.0 days.
TCRX Company Profile & Sector Positioning
TScan Therapeutics (TCRX) operates in the Biotechnology industry within the broader Healthcare sector and is listed on the NASDAQ.
Investors comparing TCRX often look at related companies in the same sector, including Adagene Inc. (ADAG), HilleVax, Inc. (HLVX), MacroGenics, Inc. (MGNX), MEI Pharma, Inc. (MEIP), and Anixa Biosciences, Inc. (ANIX). Comparing financial metrics, valuation ratios, and stock performance across these peers can help investors evaluate TCRX's relative position within its industry.