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ACOG vs SPRO

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Alpha Cognition Inc. Common Stock and Spero Therapeutics, Inc. Common Stock

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Daily close · 2026-11-09

Price return

Both stocks start at 0% on the first shared trading day.

ACOG65.74%
SPRO-9.32%
Price return: ACOG and SPROHistorical recorded observations on the same scale. Missing metrics leave gaps.-69%-8%53%113%174%Nov 24Apr 25Aug 25Jan 26Jun 26Nov 26

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Split-adjusted closing prices. Dividends are excluded.Year ranges begin January 1 of the end year minus the selected years.
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CONTEXT ATTACHEDACOG + SPROPrices, financials and SEC filing evidence

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Similarity
63.8%
2 shared / 3 total tags

How similar are their businesses?

The score compares business activities in annual filings released in 2025. Core activities receive four times the weight of material activities. Industries that fewer companies share carry more weight.

HealthcarePharmaceuticals
How we measure overlap ↗
The businesses behind the score

Industry overlap

Filing-derived business activity overlapCounts of retained positive business classifications. Circle sizes do not encode the counts or the weighted similarity score.ACOG only0Shared2SPRO only1

ACOG only · 0

No activities in this group.

Shared activities · 2

SPRO only · 1

Positive activities from the two selected annual filings. Expand each group to view all its activities, or use the complete table below. These are classification sets, not revenue shares. The weighted similarity score also accounts for exposure and how common each activity is.
Show business activity table · 3 rows, 3 columns

Core activities receive full weight; material activities receive one quarter. Select a tag to read the filing evidence.

Business activityACOGSPRO
CoreCore
CoreCore
Not taggedCore

Healthcare

ACOG Core

Annual filing released 2025-03-31 · GPT 6 Luna

Alpha Cognition Inc. (the “Company,” “Alpha Cognition,” “we,” or us”) is a biopharmaceutical company dedicated to developing treatments for patients suffering from neurodegenerative diseases, such as Alzheimer’s disease (“Alzheimer’s disease” or “AD”), for which there are limited or no treatment options. On July 26, 2024, the Company received approval by the FDA of the Company’s New Drug Application (the “NDA”) for ZUNVEYL™ (benzgalantamine) previously known as ALPHA-1062 (“ZUNVEYL” or “ALPHA-1062”) a delayed release oral tablet formulation indicated for the treatment mild to moderate dementia of the Alzheimer’s type in adults (Alzheimer’s disease). The Company’s current focus is on the commercial manufacturing and sales of ZUNVEYL oral tablet formulation.
1) Obtain commercial success with the newly FDA-approved ZUNVEYL delayed release oral tablet formulation indicated for the treatment of mild to moderate dementia of the Alzheimer’s type in adults (Alzheimer’s disease). On July 26, 2024, the Company received this FDA approval. The Company will now focus on the development of commercial manufacturing and commercial sales of ZUNVEYL oral tablet formulation. Even though ZUNVEYL was approved, it may not achieve commercial success. The Company hired its Commercial team, and 32 person salesforce in the first quarter 2025. The official commercial launch was announced on March 19th, 2025 and ZUNVEYL is now available by prescription in pharmacies nationwide.
Read the annual filing ↗

SPRO Core

Annual filing released 2025-03-27 · GPT 6 Luna

We are a clinical-stage biopharmaceutical company focused on identifying and developing novel treatments for rare diseases and diseases caused by multi-drug resistant (“MDR”) bacterial infections with high unmet need. Since our inception in 2013, we have focused our efforts and financial resources on acquiring and developing product and technology rights, building our intellectual property portfolio and conducting research and development activities for our product candidates. We do not have any products approved for sale and have not generated any revenue from product sales. We believe that our novel product candidates, if successfully developed and approved, could provide meaningful benefits to patients suffering from serious rare diseases and life-threatening bacterial infections, in both the community and hospital settings.
Our pipeline consists of mid- to late-stage clinical assets. Our most advanced clinical stage product candidate, tebipenem HBr, is in Phase 3 development, with the potential to be the first broad-spectrum oral carbapenem to treat adult patients with complicated urinary tract infections (“cUTIs”), including pyelonephritis, caused by certain microorganisms. The other programs in our pipeline are SPR206 and SPR720. SPR206 is an intravenously (“IV”) administered next generation polymyxin product candidate, for the treatment of hospital-acquired and ventilator-associated bacterial pneumonia (“HABP/VABP”) caused by MDR Gram-negative bacterial infections. In March 2025, following a reprioritization of our programs, we announced that we are no longer pursuing a planned Phase 2 clinical trial for SPR206.
Read the annual filing ↗

Pharmaceuticals

ACOG Core

Annual filing released 2025-03-31 · GPT 6 Luna

Alpha Cognition Inc. (the “Company,” “Alpha Cognition,” “we,” or us”) is a biopharmaceutical company dedicated to developing treatments for patients suffering from neurodegenerative diseases, such as Alzheimer’s disease (“Alzheimer’s disease” or “AD”), for which there are limited or no treatment options. On July 26, 2024, the Company received approval by the FDA of the Company’s New Drug Application (the “NDA”) for ZUNVEYL™ (benzgalantamine) previously known as ALPHA-1062 (“ZUNVEYL” or “ALPHA-1062”) a delayed release oral tablet formulation indicated for the treatment mild to moderate dementia of the Alzheimer’s type in adults (Alzheimer’s disease). The Company’s current focus is on the commercial manufacturing and sales of ZUNVEYL oral tablet formulation.
1) Obtain commercial success with the newly FDA-approved ZUNVEYL delayed release oral tablet formulation indicated for the treatment of mild to moderate dementia of the Alzheimer’s type in adults (Alzheimer’s disease). On July 26, 2024, the Company received this FDA approval. The Company will now focus on the development of commercial manufacturing and commercial sales of ZUNVEYL oral tablet formulation. Even though ZUNVEYL was approved, it may not achieve commercial success. The Company hired its Commercial team, and 32 person salesforce in the first quarter 2025. The official commercial launch was announced on March 19th, 2025 and ZUNVEYL is now available by prescription in pharmacies nationwide.
Read the annual filing ↗

SPRO Core

Annual filing released 2025-03-27 · GPT 6 Luna

We are a clinical-stage biopharmaceutical company focused on identifying and developing novel treatments for rare diseases and diseases caused by multi-drug resistant (“MDR”) bacterial infections with high unmet need. Since our inception in 2013, we have focused our efforts and financial resources on acquiring and developing product and technology rights, building our intellectual property portfolio and conducting research and development activities for our product candidates. We do not have any products approved for sale and have not generated any revenue from product sales. We believe that our novel product candidates, if successfully developed and approved, could provide meaningful benefits to patients suffering from serious rare diseases and life-threatening bacterial infections, in both the community and hospital settings.
Our pipeline consists of mid- to late-stage clinical assets. Our most advanced clinical stage product candidate, tebipenem HBr, is in Phase 3 development, with the potential to be the first broad-spectrum oral carbapenem to treat adult patients with complicated urinary tract infections (“cUTIs”), including pyelonephritis, caused by certain microorganisms. The other programs in our pipeline are SPR206 and SPR720. SPR206 is an intravenously (“IV”) administered next generation polymyxin product candidate, for the treatment of hospital-acquired and ventilator-associated bacterial pneumonia (“HABP/VABP”) caused by MDR Gram-negative bacterial infections. In March 2025, following a reprioritization of our programs, we announced that we are no longer pursuing a planned Phase 2 clinical trial for SPR206.
Read the annual filing ↗

Biotechnology

ACOG Not tagged

Annual filing released 2025-03-31 · GPT 6 Luna

This activity has no positive tag in the selected filing snapshot.

Read the annual filing ↗

SPRO Core

Annual filing released 2025-03-27 · GPT 6 Luna

We are a clinical-stage biopharmaceutical company focused on identifying and developing novel treatments for rare diseases and diseases caused by multi-drug resistant (“MDR”) bacterial infections with high unmet need. Since our inception in 2013, we have focused our efforts and financial resources on acquiring and developing product and technology rights, building our intellectual property portfolio and conducting research and development activities for our product candidates. We do not have any products approved for sale and have not generated any revenue from product sales. We believe that our novel product candidates, if successfully developed and approved, could provide meaningful benefits to patients suffering from serious rare diseases and life-threatening bacterial infections, in both the community and hospital settings.
Our pipeline consists of mid- to late-stage clinical assets. Our most advanced clinical stage product candidate, tebipenem HBr, is in Phase 3 development, with the potential to be the first broad-spectrum oral carbapenem to treat adult patients with complicated urinary tract infections (“cUTIs”), including pyelonephritis, caused by certain microorganisms. The other programs in our pipeline are SPR206 and SPR720. SPR206 is an intravenously (“IV”) administered next generation polymyxin product candidate, for the treatment of hospital-acquired and ventilator-associated bacterial pneumonia (“HABP/VABP”) caused by MDR Gram-negative bacterial infections. In March 2025, following a reprioritization of our programs, we announced that we are no longer pursuing a planned Phase 2 clinical trial for SPR206.
Read the annual filing ↗
What each company does

Compare the businesses

Alpha Cognition Inc. Common Stock

ACOG · XNAS

Alpha Cognition Inc., a biopharmaceutical company, engages in the development of treatments for patients suffering from neurodegenerative diseases in the United States and Canada. The company's commercial development program includes ZUNVEYL oral tablet formulation for treating Alzheimer's disease. Its pre-clinical development programs comprise ZUNVEYL in combination with memantine for the treatment of moderate-to-severe Alzheimer's disease; ALPHA-1062 sublingual formulation for acute pancreatitis; ALPHA-1062 intranasal formulation for the treatment of cognitive impairment with mild traumatic brain injury; and ALPHA-0602, ALPHA-0702, and ALPHA-0802 programs for the treatment of neurodegenerative diseases, including amyotrophic lateral sclerosis disease and spinal muscular atrophy. The company was founded in 2000 and is headquartered in Vancouver, Canada.

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Spero Therapeutics, Inc. Common Stock

SPRO · XNAS

Spero Therapeutics, Inc., a clinical-stage biopharmaceutical company, focuses on identifying and developing novel treatments for multi-drug resistant (MDR) bacterial infections and rare diseases in the United States. The company's product candidates include Tebipenem HBr (tebipenem pivoxil hydrobromide), an oral carbapenem-class antibiotic to treat complicated urinary tract infections, including pyelonephritis for adult patients, which is in Phase 3 development; and SPR720, a novel product candidate for first-line treatment of nontuberculous mycobacterial (NTM) pulmonary disease. It has license agreement with Meiji Seika Pharma Co., Ltd. to support the development of tebipenem HBr; Everest Medicines to develop, manufacture, and commercialize SPR206 in Greater China, South Korea, and Southeast Asian countries; and Vertex Pharmaceuticals Incorporated for patents relating to the oral prodrug SPR720, as well as SPR719, an active metabolite. Spero Therapeutics, Inc. was founded in 2013 and is headquartered in Cambridge, Massachusetts.

Open SPRO dashboard ↗
Financial data

Fundamentals side by side

Explore financial charts ↑
Show fundamentals table · 11 rows, 3 columns
MetricACOGSPRO
ExchangeXNASXNAS
SectorHealthcareHealthcare
IndustryBiotechnologyBiotechnology
Market observation2026-11-092026-11-09
Closing price (USD)$8.90$1.07
Market cap (USD)$193.82M$62.31M
P/E (TTM)Unavailable8.44×
Latest annual period2025-12-312025-12-31
Revenue (annual, USD)$10.22M$66.80M
Net income (annual, USD)$-20.67M$8.57M
Gross margin (annual)94.10%Unavailable

USD values from stored observations. Fiscal period endings and availability dates may differ.

ACOG period ended 2025-12-31 · available 2026-03-31 · SEC filing ↗SPRO period ended 2025-12-31 · available 2026-03-26 · SEC filing ↗

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Behind the comparison

Sources and methodology

Price return uses split-adjusted daily closes and excludes dividends. Both stocks start on the first shared trading day within the selected window. Unavailable metrics leave gaps.

Financials use SEC canonical statements available by the displayed cutoff, retaining each company's fiscal period end. Annual and quarterly amounts are shown separately. P/E is unavailable when earnings do not support a positive ratio.

Business overlap uses industry tags from annual filings released in 2025. Each core activity receives full weight; each material activity receives one quarter of that weight. Rarer industries carry more weight. We sum the smaller exposure for each shared activity and divide it by the sum of the larger exposure for every activity in either company. This measures business overlap, rather than price correlation or expected returns.

Search eligibility requires distinct issuers, a shared core category and at least 20% weighted overlap, supported by industry or sector evidence and specific business activities. Broad classifications require stronger overlap within the same sector. Comparisons also need at least 252 shared price observations within two years, recent trading and a common sourced revenue or net-income trend. Missing P/E or gross margin alone does not exclude a comparison. The eligibility snapshot refreshes daily. Related comparisons use a separate, stricter peer rule; their ten-peer discovery limit does not limit search eligibility. Other stock pairs remain available in the comparison tool.

Statements available through 2026-11-10. Industry snapshot: 2025-12-31 · 5,721 classified issuers.

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