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Silo Pharma Receives Notice of Allowance for Canadian Patent Application for Novel PTSD Treatment

(Positive)
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Silo Pharma (Nasdaq: SILO) reported that the Canadian Intellectual Property Office issued a Notice of Allowance for a patent application covering its lead asset SPC-15, an intranasal 5-HT4 receptor agonist targeting PTSD and other stress-induced psychiatric disorders.

According to Silo Pharma, the Canadian application, licensed exclusively from Columbia University, covers methods to prevent or delay stress-induced fear and depressive-like behavior and enhance stress resilience. Corresponding IP has been granted or is progressing in multiple international markets, including a recently granted European patent. The company intends to pursue the FDA’s streamlined 505(b)(2) pathway for SPC-15 and highlights a broader pipeline in CNS and pain, alongside its managed AI agent subsidiary, QwikAgents.

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Positive

  • Canadian Notice of Allowance issued for SPC-15 patent application covering PTSD-related methods
  • SPC-15 Canadian patent rights held under an exclusive license from Columbia University
  • Corresponding SPC-15 IP granted or advancing in multiple international markets, including Europe
  • Company plans to use FDA’s 505(b)(2) pathway for SPC-15 development

Negative

  • None.

Market Reaction – SILO

-10.16% $2.76 67.5x vol
15m delay
-10.16% Vs previous close
+14.4% Peak in 1 min
$2.76 Last Price
$2.67 $4.29 Day Range
$3.45M Market Cap
67.5x Rel. Volume

Following this news, SILO has declined 10.16%, reflecting a significant negative market reaction. Argus tracked a peak move of +14.4% during the session. Our momentum scanner has triggered 33 alerts so far, indicating elevated trading interest and price volatility. The stock is currently trading at $2.76. Trading volume is exceptionally heavy at 67.5x the average, suggesting significant selling pressure.

Data tracked by StockTitan Argus (15 min delayed). Upgrade to Gold for real-time data.

Market Context

News_id 1229712 recorded a 1.2% 24-hour reaction to a prior European patent grant. That comparator f...
Analysis

News_id 1229712 recorded a 1.2% 24-hour reaction to a prior European patent grant. That comparator frames the Canadian allowance as an IP-continuation event; the effective S-3 resale registration and absence of company proceeds remain relevant context.

Key Figures

Notice date: Aug. 18, 2026 Receptor subtype: 5-HT4 receptor Regulatory pathway: 505(b)(2)
3 metrics
Notice date Aug. 18, 2026 Canadian patent application
Receptor subtype 5-HT4 receptor SPC-15 mechanism
Regulatory pathway 505(b)(2) FDA pathway for SPC-15

Historical Context

5 past events · Latest: Aug 10 (Positive)
Pattern 5 events
Date Event Sentiment 24h Move Catalyst
Aug 10 European patent grant Positive +1.2% European patent grant expanded protection for SPC-15’s preventative PTSD treatment approach.
Aug 06 AI platform partnership Positive +1.3% QwikAgents engaged Caylent to build an AWS-native enterprise AI platform.
Jul 21 Pipeline progress update Positive +0.2% Silo outlined QwikAgents commercialization and SPC-15 development milestones.
Jul 14 AI program enrollment Positive -2.8% QwikAgents joined AMD’s AI Developer Program with access to cloud credits and tools.
Jul 10 Private placement Negative -26.3% Silo announced equity and warrant financing for working capital and corporate purposes.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Pattern Detected

Patent and partnership announcements were followed by positive reactions, while the private placement and one AI-program announcement diverged negatively.

Key Terms

notice of allowance, 5-ht4 receptor agonist, 505(b)(2) regulatory pathway
3 terms
notice of allowance regulatory
"the Canadian Intellectual Property Office (CIPO) has issued a Notice of Allowance"
A notice of allowance is an official confirmation from a patent office that a patent application has met all necessary requirements and is approved for granting. It signals that the invention is likely to receive legal protection soon, which can be important for investors considering the value and exclusivity of a new product or technology. Think of it as a green light indicating that the invention is on track to become legally protected.
5-ht4 receptor agonist medical
"an intranasal 5-HT4 receptor agonist targeting post-traumatic stress disorder"
A 5-HT4 receptor agonist is a drug that binds to and activates the 5-hydroxytryptamine type 4 (serotonin) receptor, a protein on cell surfaces that helps control functions like gut movement and certain brain processes. Think of the receptor as a lock and the agonist as a key that turns it on; for investors, these drugs matter because their success or failure in clinical trials, approvals, and safety profiles can influence the commercial prospects and valuation of companies developing treatments for gastrointestinal, neurological, or related conditions.
505(b)(2) regulatory pathway regulatory
"utilize the FDA’s streamlined 505(b)(2) regulatory pathway for SPC-15"
A 505(b)(2) regulatory pathway is a U.S. drug approval route that allows a company to use some existing safety and effectiveness data from earlier studies or other approved products instead of repeating every test. It speeds development and cuts costs compared with a full new-drug filing while still requiring new data for any changes. For investors, it can shorten time to market and reduce development risk—think of renovating a house using an existing foundation rather than building from scratch.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Follows recent European patent grant and coverage in multiple international markets as Silo continues to strengthen licensed IP portfolio for lead therapeutic program

SARASOTA, FLA., Aug. 18, 2026 (GLOBE NEWSWIRE) -- Silo Pharma (Nasdaq: SILO) (“Silo” or “the Company”), a developmental-stage biopharmaceutical company focused on novel therapeutics and drug delivery systems with a wholly owned managed AI agent platform subsidiary, today announced that the Canadian Intellectual Property Office (CIPO) has issued a Notice of Allowance for a patent application covering its lead asset, SPC-15, an intranasal 5-HT4 receptor agonist targeting post-traumatic stress disorder (PTSD) and other stress-induced psychiatric disorders. The Company has an exclusive license for the Canadian patent application as part of its broader license agreement with Columbia University to further develop, manufacture, and commercialize SPC-15 globally.

The allowed patent application, titled “Prophylactic Efficacy of Serotonin 4 Receptor Agonists Against Stress,” covers methods of preventing or delaying stress-induced fear and depressive-like behavior and methods for inducing and/or enhancing stress resilience by administering selected serotonin 4 (5-HT4) receptor agonists prior to a stressor. Corresponding intellectual property has been granted or is advancing in multiple international markets, including a recently granted European patent covering the same core invention.

“The Canadian patent allowance adds to our momentum in securing broad international protection for SPC-15,” said Eric Weisblum, Chief Executive Officer of Silo Pharma. “With corresponding claims receiving protection across multiple markets, we continue to strengthen the global IP position of SPC-15 and our broader therapeutic portfolio.”

Silo intends to utilize the FDA’s streamlined 505(b)(2) regulatory pathway for SPC-15, which could shorten clinical timelines and reduce development costs

About Silo Pharma, Inc.

Silo Pharma is a diversified developmental-stage biopharmaceutical company with a therapeutic focus on addressing underserved conditions, including stress-induced psychiatric disorders, chronic pain, and central nervous system (CNS) diseases. The Company’s portfolio includes innovative programs such as SPC-15 for post-traumatic stress disorder (PTSD), SP-26 for fibromyalgia and chronic pain, and a preclinical asset targeting Alzheimer’s disease. Silo’s research is conducted in collaboration with leading universities and laboratories. silopharma.com

QwikAgents, Silo Pharma's wholly owned artificial intelligence subsidiary, is a managed AI agent platform that delivers dedicated autonomous agents for research, content generation, scheduling, and workflow automation each running in a persistent environment with proprietary smart-routing across multiple AI models. The subsidiary reflects Silo's strategy to expand into high-growth technology markets while continuing to advance its core biopharmaceutical pipeline. qwikagents.com

Forward Looking Statements

This news release contains “forward-looking statements” within the meaning of the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995. These statements are identified using words “could”, “believe”, “anticipate”, “intend”, “estimate”, “expect”, “may”, “continue”, “predict”, “potential”, and similar expressions that are intended to identify forward-looking statements. Such statements involve known and unknown risks, uncertainties, and other factors that could cause the actual results of the Company to differ materially from the results expressed or implied by such statements, including statements about changes to anticipated sources of revenues, future economic and competitive conditions, difficulties in developing the Company’s technology platforms, retaining and expanding the Company’s customer base, fluctuations in consumer spending on the Company’s products and other factors. Accordingly, although the Company believes that the expectations reflected in such forward-looking statements are reasonable, there can be no assurance that such expectations will prove to be correct. The Company disclaims any obligations to publicly update or release any revisions to the forward-looking information contained in this press release, whether as a result of new information, future events, or otherwise, after the date of this press release or to reflect the occurrence of unanticipated events except as required by law.

Contact

(800) 705-0120
investors@silopharma.com


FAQ

What did Silo Pharma (Nasdaq: SILO) announce about its SPC-15 Canadian patent on August 18, 2026?

Silo Pharma announced a Canadian Notice of Allowance for a patent application covering its lead PTSD candidate SPC-15. According to Silo Pharma, the allowed claims involve intranasal 5-HT4 receptor agonists for preventing stress-induced fear, depressive-like behavior, and enhancing stress resilience.

What does the Canadian Notice of Allowance mean for Silo Pharma’s SPC-15 intellectual property (SILO)?

The Notice of Allowance indicates Canadian patent approval is forthcoming for SPC-15’s stress-related methods. According to Silo Pharma, this complements a recently granted European patent and other progressing filings, strengthening SPC-15’s global intellectual property protection across multiple key international markets.

How does Silo Pharma plan to advance SPC-15 using the FDA 505(b)(2) pathway (SILO)?

Silo Pharma intends to use the FDA’s streamlined 505(b)(2) regulatory pathway for SPC-15 development. According to Silo Pharma, this approach could shorten clinical timelines and reduce development costs compared with traditional routes, supporting more efficient advancement of its PTSD therapeutic candidate.

What disorders is Silo Pharma’s SPC-15 program targeting for treatment (SILO)?

SPC-15 targets post-traumatic stress disorder and other stress-induced psychiatric disorders using an intranasal 5-HT4 receptor agonist. According to Silo Pharma, the allowed patent covers preventing or delaying stress-induced fear and depressive-like behavior and enhancing stress resilience prior to exposure to a stressor.

What is the relationship between Silo Pharma and Columbia University regarding SPC-15 (SILO)?

Silo Pharma holds an exclusive license to the Canadian SPC-15 patent application from Columbia University. According to Silo Pharma, this broader license agreement covers further development, manufacturing, and global commercialization of SPC-15, underpinning the company’s lead therapeutic program in stress-related psychiatric conditions.

How does international patent coverage support Silo Pharma’s SPC-15 program and SILO shareholders?

International coverage enhances protection for SPC-15’s core invention across multiple markets. According to Silo Pharma, Canadian allowance plus a recently granted European patent and progressing filings globally strengthen the company’s IP position, supporting future commercialization strategies for its lead PTSD-focused asset.

What is QwikAgents, Silo Pharma’s AI subsidiary, and how does it fit SILO’s strategy?

QwikAgents is Silo Pharma’s wholly owned managed AI agent platform subsidiary offering autonomous agents for research and workflows. According to Silo Pharma, the business reflects a strategy to expand into high-growth technology markets while continuing to advance its core biopharmaceutical development pipeline.