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ACRS vs IRWD

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Aclaris Therapeutics, Inc. and Ironwood Pharmaceuticals, Inc. - Class A

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Daily close · 2026-11-09

Price return

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

ACRS-34.57%
IRWD-58.14%
Price return: ACRS and IRWDHistorical recorded observations on the same scale. Missing metrics leave gaps.-130%-2%126%254%382%202120222023202420252026

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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 ATTACHEDACRS + IRWDPrices, financials and SEC filing evidence

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Similarity
82.1%
3 shared / 5 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.

BiotechnologyHealthcarePharmaceuticals
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.ACRS only2Shared3IRWD only0

ACRS only · 2

Shared activities · 3

IRWD only · 0

No activities in this group.

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 · 5 rows, 3 columns

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

Business activityACRSIRWD
CoreCore
CoreCore
CoreCore
MaterialNot tagged
MaterialNot tagged

Biotechnology

ACRS Core

Annual filing released 2025-02-27 · GPT 6 Luna

PART I Item 1. Business Overview We are a clinical-stage biopharmaceutical company focused on developing novel small and large molecule product candidates for immuno-inflammatory diseases. Our proprietary KINect drug discovery platform combined with our preclinical development capabilities allows us to identify and advance potential product candidates that we may develop independently or in collaboration with third parties. In addition to identifying and developing our novel product candidates, we are pursuing strategic alternatives, including identifying and consummating transactions with third-party partners, to further develop, obtain marketing approval for and/or commercialize our novel product candidates. We also provide contract research services to third parties enabled by our early-stage research and development expertise. Our Approach
In addition to our small molecule discovery efforts, we maintain capabilities in biologics discovery to complement our therapeutic portfolio. Through our integrated discovery platform, we can progress biologics candidates from concept through lead optimization, employing robust screening cascades and protein characterization techniques to identify molecules with desired therapeutic properties. This complementary approach to our small molecule programs enables us to pursue optimal therapeutic modalities for each target and indication of interest. We intend to evaluate both internal and external development options, including strategic partnerships, for these assets. Manufacturing and Supply We do not have any manufacturing facilities. We rely on third parties for the manufacture of preclinical and clinical supplies for our product candidates. Competition
Read the annual filing ↗

IRWD Core

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

PART I Item 1. Business Our Company We are a biotechnology company developing and commercializing life-changing therapies for people living with gastrointestinal, or GI, and rare diseases. We are focused on the development and commercialization of innovative GI product opportunities in areas of significant unmet need, leveraging our demonstrated expertise and capabilities in GI diseases. LINZESS® (linaclotide), our commercial product, is the first product approved by the United States Food and Drug Administration, or U.S. FDA, in a class of GI medicines called guanylate cyclase type C agonists, or GC-C agonists, and is indicated for adult men and women suffering from irritable bowel syndrome with constipation, or IBS-C, or chronic idiopathic constipation, or CIC, and for pediatric patients ages 6-17 years-old suffering from functional constipation, or FC.
Ironwood Pharmaceuticals, Inc. (“Ironwood” or the “Company”) is a biotechnology company developing and commercializing life-changing therapies for people living with gastrointestinal (“GI”) and rare diseases. The Company is focused on the development and commercialization of innovative GI product opportunities in areas of significant unmet need, leveraging its demonstrated expertise and capabilities in GI diseases.
Read the annual filing ↗

Healthcare

ACRS Core

Annual filing released 2025-02-27 · GPT 6 Luna

PART I Item 1. Business Overview We are a clinical-stage biopharmaceutical company focused on developing novel small and large molecule product candidates for immuno-inflammatory diseases. Our proprietary KINect drug discovery platform combined with our preclinical development capabilities allows us to identify and advance potential product candidates that we may develop independently or in collaboration with third parties. In addition to identifying and developing our novel product candidates, we are pursuing strategic alternatives, including identifying and consummating transactions with third-party partners, to further develop, obtain marketing approval for and/or commercialize our novel product candidates. We also provide contract research services to third parties enabled by our early-stage research and development expertise. Our Approach
Additionally, ATI-2138 demonstrated a dose-dependent inhibition of both ITK and JAK3 exploratory PD biomarkers, with near maximal inhibition achieved at the 30 mg total daily dose. No serious adverse events were reported. We are conducting a Phase 2a open-label trial to investigate the safety, tolerability, PK, efficacy, and PD of ATI-2138 administered over 12 weeks in approximately 15 patients in the United States with moderate to severe atopic dermatitis. The primary endpoints are safety related parameters. Secondary endpoints include EASI response (EASI-50, EASI-75, EASI-90), validated IGA response, body surface area response and other pertinent efficacy related measures.
Read the annual filing ↗

IRWD Core

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

PART I Item 1. Business Our Company We are a biotechnology company developing and commercializing life-changing therapies for people living with gastrointestinal, or GI, and rare diseases. We are focused on the development and commercialization of innovative GI product opportunities in areas of significant unmet need, leveraging our demonstrated expertise and capabilities in GI diseases. LINZESS® (linaclotide), our commercial product, is the first product approved by the United States Food and Drug Administration, or U.S. FDA, in a class of GI medicines called guanylate cyclase type C agonists, or GC-C agonists, and is indicated for adult men and women suffering from irritable bowel syndrome with constipation, or IBS-C, or chronic idiopathic constipation, or CIC, and for pediatric patients ages 6-17 years-old suffering from functional constipation, or FC.
Greater than 65% of IBS-C patients suffer from bloating and/or discomfort at least one time per week, according to the Lieberman Survey. Linaclotide—U.S. In August 2012, the U.S. FDA approved LINZESS as a once daily treatment for adult men and women suffering from IBS-C (290 mcg dose) or CIC (145 mcg dose). We and AbbVie began commercializing LINZESS in the U.S. in December 2012. In January 2017, the U.S. FDA approved a 72 mcg dose of linaclotide for the treatment of adult men and women with CIC. We and AbbVie continue to explore ways to enhance the clinical profile of LINZESS by studying linaclotide in additional indications, populations, and formulations to assess its potential to treat various conditions.
Read the annual filing ↗

Pharmaceuticals

ACRS Core

Annual filing released 2025-02-27 · GPT 6 Luna

PART I Item 1. Business Overview We are a clinical-stage biopharmaceutical company focused on developing novel small and large molecule product candidates for immuno-inflammatory diseases. Our proprietary KINect drug discovery platform combined with our preclinical development capabilities allows us to identify and advance potential product candidates that we may develop independently or in collaboration with third parties. In addition to identifying and developing our novel product candidates, we are pursuing strategic alternatives, including identifying and consummating transactions with third-party partners, to further develop, obtain marketing approval for and/or commercialize our novel product candidates. We also provide contract research services to third parties enabled by our early-stage research and development expertise. Our Approach
however, these drugs only target a small fraction of the kinome, with many clinically relevant kinase targets lacking validated inhibitors. In 2023, the kinase inhibitors market was valued at over $57 billion. We’re focused on novel approaches toward the design and development of kinase inhibitors that target key enzymes involved in chronic inflammation, autoimmune disease, and the regulation of cancer growth, survival and metastasis. We are developing ATI-2138, a highly potent, oral small molecule covalent IL2-inducible tyrosine kinase (“ITK”) and Janus kinase (“JAK”) 3 inhibitor for autoimmune diseases. In addition, we are also progressing to candidate selection a second generation ITK selective inhibitor designed to eliminate crossover on JAK3. ● Identify additional product candidates through our KINect drug discovery platform.
Read the annual filing ↗

IRWD Core

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

PART I Item 1. Business Our Company We are a biotechnology company developing and commercializing life-changing therapies for people living with gastrointestinal, or GI, and rare diseases. We are focused on the development and commercialization of innovative GI product opportunities in areas of significant unmet need, leveraging our demonstrated expertise and capabilities in GI diseases. LINZESS® (linaclotide), our commercial product, is the first product approved by the United States Food and Drug Administration, or U.S. FDA, in a class of GI medicines called guanylate cyclase type C agonists, or GC-C agonists, and is indicated for adult men and women suffering from irritable bowel syndrome with constipation, or IBS-C, or chronic idiopathic constipation, or CIC, and for pediatric patients ages 6-17 years-old suffering from functional constipation, or FC.
Greater than 65% of IBS-C patients suffer from bloating and/or discomfort at least one time per week, according to the Lieberman Survey. Linaclotide—U.S. In August 2012, the U.S. FDA approved LINZESS as a once daily treatment for adult men and women suffering from IBS-C (290 mcg dose) or CIC (145 mcg dose). We and AbbVie began commercializing LINZESS in the U.S. in December 2012. In January 2017, the U.S. FDA approved a 72 mcg dose of linaclotide for the treatment of adult men and women with CIC. We and AbbVie continue to explore ways to enhance the clinical profile of LINZESS by studying linaclotide in additional indications, populations, and formulations to assess its potential to treat various conditions.
Read the annual filing ↗

Immunotherapy

ACRS Material

Annual filing released 2025-02-27 · GPT 6 Luna

Bosakitug (ATI-045) is an investigational, novel, humanized anti-TSLP monoclonal antibody that specifically binds to human TSLP with high affinity and long residence time, blocking its interaction with the receptor complex and disrupting signal transduction. This mechanism prevents a broad range of immune cells targeted by TSLP from releasing proinflammatory cytokines. Bosakitug has the potential to treat a variety of atopic, immunologic and respiratory diseases. We exclusively license global rights (excluding Greater China) to bosakitug from Biosion, Inc. (“Biosion”). In a Phase 2a, single-arm, proof-of-concept trial in 22 U.S.
Additionally, ATI-2138 demonstrated a dose-dependent inhibition of both ITK and JAK3 exploratory PD biomarkers, with near maximal inhibition achieved at the 30 mg total daily dose. No serious adverse events were reported. We are conducting a Phase 2a open-label trial to investigate the safety, tolerability, PK, efficacy, and PD of ATI-2138 administered over 12 weeks in approximately 15 patients in the United States with moderate to severe atopic dermatitis. The primary endpoints are safety related parameters. Secondary endpoints include EASI response (EASI-50, EASI-75, EASI-90), validated IGA response, body surface area response and other pertinent efficacy related measures.
Read the annual filing ↗

IRWD 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 ↗

Oncology

ACRS Material

Annual filing released 2025-02-27 · GPT 6 Luna

We are currently seeking a global development and commercialization partner for this program (excluding Greater China). In 2022, we granted Pediatrix Therapeutics, Inc. exclusive rights to develop and commercialize lepzacitinib in Greater China. Zunsemetinib, an Investigational Oral MK2 Inhibitor Zunsemetinib (ATI-450) is an investigational oral, novel, small molecule selective inhibitor of the mitogen-activated protein kinase-activated protein kinase 2 (“MK2”) signaling pathway for the potential treatment of metastatic breast cancer (“MBC”) and pancreatic ductal adenocarcinoma (“PDAC”).
We plan to support Washington University in St. Louis in its investigator-initiated Phase 1b/2 trials of zunsemetinib in patients with MBC and PDAC. Discovery Programs and KINect Drug Discovery Platform We conduct small molecule drug discovery and preclinical development research through KINect, our proprietary drug discovery platform, which we acquired as part of our acquisition of Confluence Life Sciences, Inc. (now known as Aclaris Life Sciences, Inc.) (“Confluence”), in 2017. Our KINect platform enables us to identify potential small molecule product candidates through a unique combination of our proprietary chemical library of kinase inhibitors, our novel approaches to inhibitor modalities, our expertise in SBDD, and our custom kinase assays.
Read the annual filing ↗

IRWD 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 ↗
What each company does

Compare the businesses

Aclaris Therapeutics, Inc.

ACRS · XNAS

Aclaris Therapeutics, Inc., a clinical-stage biopharmaceutical company, engages in the development of novel drug candidates for immune-inflammatory diseases in the United States. It operates through two segments, Therapeutics and Contract Research. The Therapeutics segment is involved in identifying and developing therapies to address significant unmet needs for immuno-inflammatory diseases. Its Contract Research segment provides laboratory services. The company also develops ATI-1777, a soft JAK 1/3 inhibitor in Phase 2b trial for the treatment of atopic dermatitis and other dermatologic conditions; Bosakitug (ATI-045), an anti-TSLP monoclonal antibody in Phase 2a trial to treat moderate to severe atopic dermatitis, asthma, chronic rhinosinusitis with nasal polyps, and moderate to severe chronic obstructive pulmonary disease; ATI-2138, an oral covalent inhibitor of ITK and JAK3 inhibitor in Phase 2a trial for the treatment for T cell-mediated autoimmune diseases; Zunsemetinib (ATI-450), a mitogen-activated protein kinase-activated protein kinase 2 inhibitor under Phase 1b/2 trials for the treatment of metastatic breast cancer and pancreatic ductal adenocarcinoma; and ATI-052, a humanized anti-TSLP and anti-IL4R bispecific antibody in preclinical stage to treat various atopic, immunologic, and respiratory diseases, as well as an ITK selective inhibitor candidate for the treatment of autoimmune diseases. Aclaris Therapeutics, Inc. was incorporated in 2012 and is headquartered in Wayne, Pennsylvania.

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Ironwood Pharmaceuticals, Inc. - Class A

IRWD · XNAS

Ironwood Pharmaceuticals, Inc., a biotechnology company, focuses on the development and commercialization of therapies for gastrointestinal (GI) and rare diseases in the United States and internationally. It markets linaclotide, a guanylate cyclase type-C (GC-C) agonist for the treatment of adults suffering from irritable bowel syndrome with constipation or chronic idiopathic constipation, as well as for pediatric patients suffering from functional constipation under the LINZESS and CONSTELLA names. The company is also developing IW-3300, a GC-C agonist for the treatment of visceral pain conditions, including interstitial cystitis/bladder pain syndrome and endometriosis; and Apraglutide, a long-acting synthetic peptide analog of glucagon-like peptide-2 for short bowel syndrome patients dependent on parenteral support, as well as for acute graft versus host disease. It has strategic partnerships with AbbVie Inc., AstraZeneca AB, and Astellas Pharma Inc. for the development and commercialization of linaclotide. The company was formerly known as Microbia, Inc. and changed its name to Ironwood Pharmaceuticals, Inc. in April 2008. Ironwood Pharmaceuticals, Inc. was incorporated in 1998 and is headquartered in Boston, Massachusetts.

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Financial data

Fundamentals side by side

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Show fundamentals table · 11 rows, 3 columns
MetricACRSIRWD
ExchangeXNASXNAS
SectorHealthcareHealthcare
IndustryBiotechnologyDrug Manufacturers - Specialty & Generic
Market observation2026-11-092026-11-09
Closing price (USD)$4.24$4.68
Market cap (USD)$672.52M$774.78M
P/E (TTM)Unavailable5.18×
Latest annual period2025-12-312025-12-31
Revenue (annual, USD)$7.83M$296.15M
Net income (annual, USD)$-64.92M$24.02M
Gross margin (annual)73.28%Unavailable

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

ACRS period ended 2025-12-31 · available 2026-02-26 · SEC filing ↗IRWD period ended 2025-12-31 · available 2026-02-26 · SEC filing ↗

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Browse all ACRS comparisons ↗ · Browse all IRWD comparisons ↗

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

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