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ImmunityBio, Inc. is a clinical stage immunotherapy company. It develops next generation therapies that drive immunogenic mechanisms for defeating cancers and infectious diseases. The company's immunotherapy platform activates both the innate and adaptive immune systems to create long term immunological memory. ImmunityBio was founded by Patrick Soon-Shiong in 2014 and is headquartered in San Diego, CA.

ImmunityBio Inc

ImmunityBio is trending after the National Comprehensive Cancer Network updated its clinical guidelines to include ANKTIVA plus BCG for patients with BCG-unresponsive papillary-only bladder cancer. The community is actively discussing this update as a major catalyst that enables immediate insurance reimbursement and expanded physician adoption, effectively bypassing wait times for formal FDA label expansion.

Oklo, Inc. engages in the development of fission reactors. It provides clean energy through the design and deployment of fast fission power plants. The company was founded by Jacob DeWitte and Caroline Cochran on July 3, 2013 and is headquartered in Santa Clara, CA.

Oklo Inc. - Ordinary Shares - Class A

Oklo Inc.

Oklo is currently a major focus for investors navigating high volatility as they weigh the company's long-term nuclear energy ambitions against immediate regulatory and financial pressures. The community remains deeply polarized, with bulls pointing to strategic partnerships and potential government-backed clean energy catalysts, while bears express significant skepticism regarding the firm's pre-revenue status, insider selling, and extended development timelines.

Nebius Group NV is a technology company that provides infrastructure and services to AI builders worldwide. It offers Nebius AI, an AI-centric cloud platform provides full-stack infrastructure, including large-scale GPU clusters, cloud services, and developer tools. The company also operates through specialized brands: Toloka AI, which partners in data for generative AI development; TripleTen, an edtech platform focused on re-skilling individuals for tech careers; and Avride, which develops autonomous driving technology. Nebius Group was founded by Elena Kolmanovskaya, Ilya Segalovich, Mikhail Fadeev, and Arkady Volozh in 1989 and is headquartered in Amsterdam, the Netherlands.

Nebius Group N.V. - Ordinary Shares - Class A

Nebius Group N.V. 

Nebius Group is surging after securing a massive five-year, $27 billion AI infrastructure deal with Meta, which further validates the company's status as a key hyperscaler in the high-performance compute market. Investors and the community are aggressively bullish, citing the combination of this new contract, significant recent backing from Nvidia, and the company's strategic positioning to dominate physical AI and robotics compute as catalysts for long-term growth.

Greenwich LifeSciences, Inc. engages in the development of a breast cancer immunotherapy designed to prevent the recurrence of breast cancer following surgery. The company was founded by Eric Rothe on August 29, 2006 and is headquartered in Stafford, TX.

Greenwich LifeSciences Inc

Greenwich LifeSciences is trending after reporting that the non-HLA-A*02 arm of its Phase III FLAMINGO-01 trial shows a continued reduction in recurrence rates, mirroring promising Phase II results. The community is actively discussing the potential for a major data catalyst following the announcement that the full Steering Committee will co-author upcoming AACR abstracts, with many longs viewing recent price consolidation as a strategic entry point.

Super Micro Computer, Inc. engages in the distribution and manufacture of information technology solutions and other computer products. Its products include twin solutions, MP servers, GPU and coprocessor, MicroCloud, AMD solutions, power supplies, SuperServer, storage, motherboards, chassis, super workstations, accessories, SuperRack and server management products. The company was founded by Charles Liang, Yih-Shyan Liaw, Sara Liu, and Chiu-Chu Liu Liang in September 1993 and is headquartered in San Jose, CA.

Super Micro Computer Inc

Super Micro Computer is currently generating intense community debate as retail traders remain bullish, pointing to institutional accumulation and strong demand for AI infrastructure, while some skeptics focus on ongoing legal scrutiny and stagnant price action. Investors are closely monitoring the upcoming Nvidia GTC conference for potential catalysts, with many hoping that continued leadership in liquid-cooled AI server solutions will finally catalyze a breakout from the stock's recent consolidation.

Aventus Network

Aventus Network is currently trending as community members discuss its potential for a breakout, fueled by its enterprise-grade technology, Polkadot integration, and the recent incorporation of its DAO in the UAE. Investors are actively highlighting the project's low market capitalization and strategic advisory appointments as bullish catalysts while keeping a close watch on trading volume for signs of sustained momentum.

Micron Technology, Inc. engages in the provision of innovative memory and storage solutions. It operates through the following segments: Compute and Networking Business Unit (CNBU), Mobile Business Unit (MBU), Embedded Business Unit (EBU), and Storage Business Unit (SBU). The CNBU segment includes memory products and solutions sold into client, cloud server, enterprise, graphics, and networking markets. The MBU segment is involved in memory and storage products sold into smartphone and other mobile-device markets. The EBU segment focuses on memory and storage products sold into automotive, industrial, and consumer Markets. The SBU segment consists of SSDs and component-level solutions sold into enterprise and cloud, client, and consumer storage markets. The company was founded by Ward D. Parkinson, Joseph Leon Parkinson, Dennis Wilson, and Doug Pitman on October 5, 1978 and is headquartered in Boise, ID.

Micron Technology Inc.

Micron Technology Inc

Micron Technology is trending as investors aggressively position themselves ahead of the upcoming earnings report, driven by analyst price target hikes and bullish sentiment surrounding its critical role in AI memory infrastructure. The community is heavily focused on the company's high-volume HBM4 production for NVIDIA's Vera Rubin systems and the broader memory super-cycle, with intense debate ongoing between bulls anticipating a breakout toward new highs and bears wary of overvaluation.

Delta Air Lines, Inc. engages in the provision of scheduled air transportation for passengers and cargo. It operates through the Airline and Refinery segments. The Airline segment provides scheduled air transportation for passengers and cargo. The Refinery segment provides jet fuel to the airline segment. The company was founded by Collett Everman Woolman in 1928 and is headquartered in Atlanta, GA.

Delta Air Lines, Inc.

Delta Air Lines is currently in the spotlight as investors digest mixed quarterly earnings that showcased a strong premium travel business but highlighted lingering concerns regarding high labor costs and cautious forward guidance. The community is actively debating the company's long-term resilience, weighing the positive momentum of its international fleet expansion against near-term operational headwinds.

POET Technologies, Inc. engages in the designing, developing, manufacturing and sale of opto-electronic solutions for the sensing, data communications and telecommunications markets. It developed POET Optical Interposer platform, which allows the integration of electronic and photonic devices into a single multi-chip module. The company was founded on November 14, 1985 and is headquartered in Toronto, Canada.

POET Technologies Inc

POET Technologies is seeing a significant surge in trading volume and investor interest as the market anticipates potential product updates and partnership news at the upcoming OFC conference. Community discussion is heavily focused on the company's progress in scaling manufacturing for AI-driven optical interconnects, with traders debating whether upcoming industry events will provide the long-awaited catalyst for sustained price momentum.

American Airlines Group, Inc. is a holding company, which engages in the operation of a network carrier through its principal wholly owned mainline operating subsidiary, American. The firm offers air transportation for passengers and cargo. It operates through the following geographical segments: Domestic, Latin America, Atlantic, and Pacific. The company was founded on December 9, 2013, and is headquartered in Fort Worth, TX.

American Airlines Group Inc

American Airlines is trending as investors weigh strong top-line demand against ongoing operational challenges, including industry-wide flight disruptions, rising fuel costs, and labor-management tensions. The community remains divided, with some traders betting on a turnaround fueled by historical booking strength and technical signals, while others express deep skepticism regarding the company's high debt load and underperformance relative to airline peers.

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Actinium Pharmaceuticals, Inc. to Present Two Abstracts at the 2026 AACR Annual Meeting

Actinium Pharmaceuticals, Inc. to Present Two Abstracts at the 2026 AACR Annual Meeting Actinium Pharmaceuticals, Inc. to Present Two Abstracts at the 2026 AACR Annual Meeting PR Newswire NEWYORK...

Are Medical Stocks Lagging  Actinium Pharmaceuticals (ATNM) This Year?

Here is how Actinium Pharmaceuticals (ATNM) and Collegium Pharmaceutical (COLL) have performed compared to their sector so far this year.

<ul class="summary-bullets"><li>The company’s latest research shows ATNM-400 achieving substantial tumor-growth suppression.</li><li>The therapy targets a validated antigen overexpressed in breast cancer and other solid tumors, such as Prostate Cancer and Non-Small Cell Lung Cancer.</li><li>Researchers observed that ATNM-400 induced irreversible DNA damage.</li></ul>Actinium Pharmaceuticals, Inc. (ATNM) stock was in the spotlight on Friday after the company announced promising new preclinical findings for its novel radiotherapy, ATNM-400, at the 2025 San Antonio Breast Cancer Symposium (SABCS).&nbsp;The Actinium-225 (Ac-225) antibody radioconjugate demonstrated strong anti-tumor activity across multiple breast cancer models, including hormone receptor–positive (HR+), triple-negative (TNBC), and treatment-resistant tumors.<h2 class="st-heading-2">ATNM-400’s Broad Potential</h2>The company’s latest research shows ATNM-400 achieving substantial tumor-growth suppression with minimal side effects in preclinical studies.&nbsp;The therapy targets a validated antigen overexpressed in breast cancer and other solid tumors, such as Prostate Cancer and Non-Small Cell Lung Cancer (NSCLC), positioning ATNM-400 as a potential pan-tumor radiotherapy solution.Following the update,&nbsp;<a href="https://stocktwits.com/symbol/ATNM">Actinium’s stock</a> traded over 3% higher in Friday’s premarket. On Stocktwits, retail sentiment around the stock remained in ‘neutral’ territory amid ‘normal’ message volume levels.&nbsp;<h2 class="st-heading-2">Effectiveness Against Resistant Cancer Types</h2>ATNM-400 displayed potent cytotoxic effects in models resistant to standard-of-care treatments, including trastuzumab-resistant BT474-Clone5 and tamoxifen-resistant MCF7-Tam1 cells. Combining ATNM-400 with conventional therapies like trastuzumab or tamoxifen enhanced tumor regression in preclinical models."Patients whose tumors progress after endocrine therapy or HER2-targeted therapies face limited and often toxic treatment options. The data presented at SABCS show that ATNM-400 generates potent, targeted DNA damage even in highly resistant breast cancer models, while maintaining a favorable tolerability profile,” said&nbsp;Aditya Bardia, Program Director, Breast Medical Oncology at Geffen School of Medicine, University of California, Los Angeles.Researchers observed that ATNM-400 induced irreversible DNA damage, marked by elevated phosphorylation of H2AX (pH2AX) and AKT (pAKT), consistent with alpha-particle–driven double-strand DNA breaks.&nbsp;ATNM stock has gained over 17% year-to-date.Also See:&nbsp;<a href="https://stocktwits.com/news-articles/markets/equity/nvidia-weighs-boosting-h200-ai-chip-production-report/cLICS1gREF8">Nvidia Weighs Boosting H200 AI Chip Production: Report</a>For updates and corrections, email newsroom[at]stocktwits[dot]com.

In this photo illustration, the Actinium Pharmaceuticals, Inc. logo is displayed on the screen of a tablet. 

Why Is Actinium Pharmaceuticals Stock Rising Today? 

The Actinium-225 (Ac-225) antibody radioconjugate demonstrated strong anti-tumor activity across multiple breast cancer models.

Equity

The Actinium-225 (Ac-225) antibody radioconjugate demonstrated strong anti-tumor activity across multiple breast cancer models.


Are Medical Stocks Lagging  Alpha Cognition Inc. (ACOG) This Year?

Here is how Alpha Cognition Inc. (ACOG) and Actinium Pharmaceuticals (ATNM) have performed compared to their sector so far this year.

Is Alpha Cognition Inc. (ACOG) Stock Outpacing Its Medical Peers This Year?

Is Armata Pharmaceuticals (ARMP) Stock Outpacing Its Medical Peers This Year?

Here is how Armata Pharmaceuticals, Inc. (ARMP) and Actinium Pharmaceuticals (ATNM) have performed compared to their sector so far this year.

Is Actinium Pharmaceuticals (ATNM) Stock Outpacing Its Medical Peers This Year?

Here is how Actinium Pharmaceuticals (ATNM) and Avadel (AVDL) have performed compared to their sector so far this year.

Regencell Bioscience Holdings Ltd (3,500% Jump in Message Volume)Hong Kong-based Regencell focuses on traditional Chinese medicine for neurocognitive disorders, particularly ADHD and autism. Reports suggest its recent rally was fueled by insider buying, with insiders owning 81% of the company.&nbsp;However, a Stocktwits&nbsp;<a href="https://stocktwits.com/news-articles/markets/equity/rgc-stock-more-than-triples-this-year/ch7KEpeRbcl">poll</a> indicates retail traders remain skeptical, with some flagging it as a potential pump-and-dump risk.&nbsp;The stock has surged 1,054% this year.GlucoTrack Inc. (2,800% Jump in Message Volume)GlucoTrack develops non-invasive glucose monitoring devices. It announced that safety and performance data from its first-in-human trial of a long-term continuous blood glucose monitoring (CBGM) system will be presented at the 2025 ATTD conference.&nbsp;CEO Paul V. Goode highlighted its potential for real-time glucose monitoring without on-body wearables, calling it a transformative step in diabetes management.&nbsp;GlucoTrack stock is down over 96% year-to-date (YTD).TC Biopharm (Holdings) Plc (1,300% Jump in Message Volume)TC Biopharm&nbsp;<a href="https://stocktwits.com/symbol/TCBP">received</a> a Nasdaq delisting notice due to its share price falling below $1. Trading will be suspended on Monday, with its American depository shares expected to move to OTC Markets.&nbsp;The company is also shifting to a contract development and manufacturing organization (CDMO) model, cutting about 50% of its workforce to reduce operational burn by 55%. This is projected to save $2.1 million in 2025 and $4.2 million annually.&nbsp;The stock is down over 95% YTD.AbbVie Inc. (700% Jump in Message Volume)Erste Group upgraded AbbVie to ‘Buy’ from ‘Hold’, according to The Fly, citing strong sales growth projections through 2029, supported by upcoming product launches. The research firm expects earnings per share (EPS) to rise significantly in 2025, ranging from $12.12 to $12.32.&nbsp;AbbVie recently agreed to acquire a next-gen obesity drug from Denmark-based Gubra A/S for up to $2.2 billion, boosting sentiment.&nbsp;The stock is up over 17.5% YTD.Actinium Pharmaceuticals Inc. (600% Jump in Message Volume)Actinium is launching trials for its drug Actimab-A in combination with Merck’s Keytruda and Bristol Myers Squibb’s Opdivo to treat solid tumors. The trials will include head-to-head studies comparing Actimab-A combinations to standalone treatments.&nbsp;The company also entered a research agreement with Memorial Sloan Kettering to expand Actimab-A’s applications.&nbsp;Actinium stock is up over 22% YTD.For updates and corrections, email newsroom[at]stocktwits[dot]com.

A person examines financial data on a screen displaying a graph with upward and downward trends, using a pen to trace the line chart. | Representative Image: Getty Images

Regencell, GlucoTrack, TC Biopharm, AbbVie, Actinium: 5 Health Care Stocks That Lit Up Retail Discussions Last Week

Investors reacted to insider buying, clinical trial updates, and strategic business shifts that happened in the week ended March 21, 2025.

Actinium Pharmaceuticals, Inc. is a clinical-stage biopharmaceutical company, which engages in the development of novel targeted therapies. It also develops and markets medicines for relapsed or refractory cancer patients. The company was founded in 2000 and is headquartered in New York, NY.

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