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Amgen vs Replimune: why the prices moved differently

Weekly · monthly · quarterly news summaries, side by side in time

Amgen Inc (AMGN)

Q3 2026
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Amgen Q3: Pelacarsen Blow Sinks Shares, Recalls and Rival Threats Weigh

  • Pelacarsen failure casts doubt on Amgen's olpasiran Novartis' heart drug pelacarsen failed, and because Amgen's similar olpasiran works the same way, investors feared it could fail too. Shares fell about 10% and BMO downgraded the stock.

    This was the single most severe event of the quarter, directly sinking the share price.

  • Court blocks Colorado's 70% Enbrel price cap A court blocked Colorado's 70% price cap on Enbrel, reducing regulatory risk for Amgen's biggest drug. This removes a threat that could have slashed revenue from a key product.

    A major legal win that eased a key overhang on the stock.

  • Q2 beat and raised guidance, key products grow 26% Amgen's Q2 earnings and revenue beat estimates, and the company raised its full-year guidance. Six key products grew 26%, showing the new drug lineup is driving growth.

    Strong financial results and raised outlook support the stock.

  • Recalls, competition, pipeline setback, cyberattack Corlanor and Sensipar recalls raised quality concerns. Merck's cheaper oral PCSK9 threatens Repatha, Sotyktu may erode Otezla, AMG 513 was discontinued, and a cyberattack triggered lawsuits.

    Multiple negative events that weighed on sentiment and future growth prospects.

September 2026
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Novartis Lp(a) Failure Sinks Amgen; IMDELLTRA Wins Offer Counterweight

  • Novartis Lp(a) failure casts doubt on Amgen's olpasiran Novartis' rival Lp(a)-lowering drug pelacarsen failed its Phase 3 heart trial, even though it lowered Lp(a). Amgen's similar drug olpasiran now faces the same doubt, and Amgen shares fell about 10% — their worst day since 2000 — as investors fear olpasiran may also fail to prevent heart attacks.

    This is the main new force driving AMGN down this period.

  • BMO downgrades Amgen on olpasiran risk BMO Capital downgraded Amgen to Market Perform from Outperform, keeping a $450 target but warning that olpasiran now carries more risk. A downgrade tells investors the analyst sees less upside, which can push the stock down and keep a lid on any recovery.

    Analyst downgrade is a direct new negative catalyst for the stock.

  • IMDELLTRA combo shows landmark survival benefit in lung cancer Amgen's IMDELLTRA combined with AstraZeneca's Imfinzi met its main goal in a Phase 3 lung-cancer study, significantly extending overall survival. This is the first such win for a bispecific T-cell engager in this setting, boosting confidence in a key new growth drug.

    A major positive pipeline win that offsets some of the Lp(a) pessimism.

  • FDA eases IMDELLTRA monitoring, making it easier to use The FDA approved a label update cutting required monitoring after the first two IMDELLTRA doses from 22–24 hours to 6–8 hours. Shorter monitoring makes the drug simpler to give, especially in community clinics, which could widen its use and support sales.

    Regulatory win that improves commercial practicality of a growth drug.

Latest
▲2▼2

Novartis Lp(a) Failure Sinks Amgen; IMDELLTRA Wins Offer Counterweight

  • Novartis Lp(a) failure casts doubt on Amgen's olpasiran Novartis' rival Lp(a)-lowering drug pelacarsen failed its Phase 3 heart trial, even though it lowered Lp(a). Amgen's similar drug olpasiran now faces the same doubt, and Amgen shares fell about 10% — their worst day since 2000 — as investors fear olpasiran may also fail to prevent heart attacks.

    This is the main new force driving AMGN down this period.

  • BMO downgrades Amgen on olpasiran risk BMO Capital downgraded Amgen to Market Perform from Outperform, keeping a $450 target but warning that olpasiran now carries more risk. A downgrade tells investors the analyst sees less upside, which can push the stock down and keep a lid on any recovery.

    Analyst downgrade is a direct new negative catalyst for the stock.

  • IMDELLTRA combo shows landmark survival benefit in lung cancer Amgen's IMDELLTRA combined with AstraZeneca's Imfinzi met its main goal in a Phase 3 lung-cancer study, significantly extending overall survival. This is the first such win for a bispecific T-cell engager in this setting, boosting confidence in a key new growth drug.

    A major positive pipeline win that offsets some of the Lp(a) pessimism.

  • FDA eases IMDELLTRA monitoring, making it easier to use The FDA approved a label update cutting required monitoring after the first two IMDELLTRA doses from 22–24 hours to 6–8 hours. Shorter monitoring makes the drug simpler to give, especially in community clinics, which could widen its use and support sales.

    Regulatory win that improves commercial practicality of a growth drug.

August 2026
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Amgen beats Q2, raises guidance, but obesity setback and cyberattack weigh

  • Q2 earnings beat and guidance raise Amgen reported Q2 adjusted EPS of $6.29 and revenue of $10.05B, beating estimates, and raised its 2026 guidance. Six key growth products grew 26%, reducing reliance on older drugs.

    This is a new positive fundamental development that directly supports the stock.

  • Repatha and Tezspire clinical wins Repatha cut death risk by 20% in a major heart trial, and Tezspire met all goals in an eosinophilic esophagitis study. These results lifted shares to a 52-week high and prompted analyst target hikes.

    New clinical data and analyst reactions are key drivers of the stock's move this period.

  • Obesity drug AMG 513 discontinued Amgen discontinued its obesity drug AMG 513, leaving MariTide trailing Eli Lilly and Novo Nordisk in the lucrative obesity market. This raises concerns about Amgen's competitive position.

    This is a new negative event that affects future growth prospects.

  • Cyberattack and drug-price pressure A July cyberattack exposed patient and proprietary data, triggering a class action investigation. Also, a looming US drug-price agreement with mid-sized biotechs could pressure Medicaid revenue.

    These are new risk factors that emerged during the period and could weigh on the stock.

▲3▼1

Amgen Hits 52-Week High on Q2 Beat, Repatha and Tezspire Wins

  • Repatha Cuts Death Risk 20% in Major Heart Trial Amgen's Repatha reduced death risk by 20% in high-risk heart patients in the VESALIUS-CV trial, a major win for its biggest growth drug. This strengthens the case for wider use and future sales, supporting a higher stock price.

    This is a new, high-impact clinical win that directly boosts confidence in Amgen's key growth driver.

  • Tezspire Meets All Goals in Eosinophilic Esophagitis Trial Amgen and AstraZeneca's Tezspire succeeded in a Phase 3 trial for eosinophilic esophagitis, a chronic throat condition with few good treatments. This opens a new market and adds to Tezspire's growth story, lifting investor optimism.

    New positive trial results expand a key product's potential, a fresh catalyst for the stock.

  • US Drug Price Agreement with Mid-Sized Biotechs Looms The Trump administration is expected to announce a drug price agreement with mid-sized biotech firms, and Amgen was among companies urged to cut US prices. If Amgen is included, lower Medicaid prices could pressure revenue and weigh on the stock.

    This is a new regulatory risk that could directly affect Amgen's pricing and profits.

  • Analyst Fair Value and Price Targets Raised After Q2 Beat Following Amgen's strong Q2 results, analysts raised their fair value estimate to about $372 and several price targets into the $450 range, citing broad franchise strength. Higher targets can pull the stock up as investors adjust expectations.

    This is a new analyst reaction that reflects upgraded expectations and can influence the stock price.

▲2▼2

Amgen Q2 Beat and Guidance Raise Outweigh Data Breach and Obesity Setback

  • Q2 earnings beat and raised 2026 guidance Amgen reported Q2 adjusted EPS of $6.29, well above the $5.62 consensus, and revenue of $10.05 billion, up 10% and ahead of forecasts. Management raised full-year revenue and EPS guidance, signaling confidence in the business. This directly boosts the stock as investors see stronger profits ahead.

    This is the main new positive event that drove the stock up over 5% this period.

  • Key growth drivers show strong momentum Six key products, including Repatha, Evenity, Uplizna, and Imdelltra, grew 26% year-over-year and now make up nearly 70% of product sales. This reduces reliance on older drugs like Enbrel and Otezla, which are facing competition. The shift supports future revenue growth and lifts investor confidence.

    It explains the underlying strength behind the earnings beat and why the stock rose.

  • Cybersecurity breach and class action investigation Amgen disclosed a July cyberattack where sensitive patient and proprietary data was stolen. A law firm has launched a class action investigation. This creates legal and reputational risk, which could weigh on the stock, though Amgen says operations are not materially affected.

    It is a new negative event that could pressure the stock and is important for a balanced view.

  • Obesity drug AMG 513 discontinued; MariTide faces tough competition Amgen ended development of early-stage obesity drug AMG 513, leaving MariTide as its only obesity candidate. MariTide's weight-loss data trails Eli Lilly's and Novo Nordisk's drugs, and switching patients may be hard. This raises doubts about Amgen's ability to compete in the lucrative obesity market.

    It is a new setback that could limit future growth and is a key counterweight to the positive earnings.

July 2026
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Enbrel price cap blocked, but recalls and new rivals pressure Amgen

  • Court blocks Colorado's 70% Enbrel price cap A federal judge stopped Colorado from capping Enbrel's price by 70%. This removes a big worry that other states might follow, protecting Amgen's future sales and cash flow. The stock could rise as investors see less regulatory risk.

    This is a major new legal win that directly supports Amgen's revenue outlook.

  • Recalls of Corlanor and Sensipar raise quality concerns Amgen recalled some lots of heart drug Corlanor and kidney drug Sensipar due to foreign substances and manufacturing issues. This adds compliance risk and could lead to fines or lost sales, weighing on the stock as investors question production quality.

    New recalls create fresh regulatory and reputational risk that can hurt the stock.

  • New oral PCSK9 rival threatens Repatha Merck won FDA approval for Lipfendra, the first oral cholesterol drug in the same class as Amgen's injectable Repatha. It costs much less per month, so it could steal market share and slow Repatha's growth, pressuring Amgen's revenue.

    A new lower-priced competitor directly challenges a key Amgen growth drug.

  • Sotyktu launch may take share from Otezla Bristol Myers Squibb's new oral drug Sotyktu is gaining traction among arthritis doctors, and Amgen's Otezla is cited as likely to lose patients. This could reduce Otezla sales, a negative for Amgen's earnings outlook.

    New competitive data shows a direct threat to an existing Amgen product.

▼3▲1

Enbrel price cap blocked, but recalls and new rivals pressure Amgen

  • Court blocks Colorado's 70% Enbrel price cap A federal judge stopped Colorado from capping Enbrel's price by 70%. This removes a big worry that other states might follow, protecting Amgen's future sales and cash flow. The stock could rise as investors see less regulatory risk.

    This is a major new legal win that directly supports Amgen's revenue outlook.

  • Recalls of Corlanor and Sensipar raise quality concerns Amgen recalled some lots of heart drug Corlanor and kidney drug Sensipar due to foreign substances and manufacturing issues. This adds compliance risk and could lead to fines or lost sales, weighing on the stock as investors question production quality.

    New recalls create fresh regulatory and reputational risk that can hurt the stock.

  • New oral PCSK9 rival threatens Repatha Merck won FDA approval for Lipfendra, the first oral cholesterol drug in the same class as Amgen's injectable Repatha. It costs much less per month, so it could steal market share and slow Repatha's growth, pressuring Amgen's revenue.

    A new lower-priced competitor directly challenges a key Amgen growth drug.

  • Sotyktu launch may take share from Otezla Bristol Myers Squibb's new oral drug Sotyktu is gaining traction among arthritis doctors, and Amgen's Otezla is cited as likely to lose patients. This could reduce Otezla sales, a negative for Amgen's earnings outlook.

    New competitive data shows a direct threat to an existing Amgen product.

Q2 2026
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Amgen's growth drivers offset legal and regulatory setbacks

  • Growth drivers now 70% of sales Amgen's key growth drugs (Repatha, rare disease) grew 24% and now make up 70% of total sales, offsetting declines in older drugs. This shows the company's transition is working, which supports the stock price.

    This is the core positive force behind Amgen's business momentum.

  • MariTide and Repatha data advance Amgen's obesity drug MariTide is in phase 3 trials, and Repatha cut heart events by 29% in high-risk diabetes patients. These could become major new revenue sources, lifting future earnings expectations.

    Pipeline progress is a key driver of long-term growth and investor optimism.

  • Tavneos regulatory and data integrity crisis EU regulators recommend revoking Tavneos approval, and NEJM retracted the trial supporting it after FDA found data issues. The FDA may withdraw the drug in the US. This creates uncertainty and could hurt Amgen's reputation and sales.

    This is a major negative regulatory event that threatens a marketed drug and investor confidence.

  • Competition and patent risks Roche's divarasib beat Amgen's Lumakras in lung cancer, threatening Lumakras sales. Also, a jury found Amgen willfully infringed a patent, raising legal concerns. Both could pressure future revenue and increase costs.

    These are new competitive and legal threats that could weigh on Amgen's stock.

June 2026
▲2▼2

Amgen's growth drivers offset legal and regulatory setbacks

  • Growth drivers now 70% of sales Amgen's key growth drugs (Repatha, rare disease) grew 24% and now make up 70% of total sales, offsetting declines in older drugs. This shows the company's transition is working, which supports the stock price.

    This is the core positive force behind Amgen's business momentum.

  • MariTide and Repatha data advance Amgen's obesity drug MariTide is in phase 3 trials, and Repatha cut heart events by 29% in high-risk diabetes patients. These could become major new revenue sources, lifting future earnings expectations.

    Pipeline progress is a key driver of long-term growth and investor optimism.

  • Tavneos regulatory and data integrity crisis EU regulators recommend revoking Tavneos approval, and NEJM retracted the trial supporting it after FDA found data issues. The FDA may withdraw the drug in the US. This creates uncertainty and could hurt Amgen's reputation and sales.

    This is a major negative regulatory event that threatens a marketed drug and investor confidence.

  • Competition and patent risks Roche's divarasib beat Amgen's Lumakras in lung cancer, threatening Lumakras sales. Also, a jury found Amgen willfully infringed a patent, raising legal concerns. Both could pressure future revenue and increase costs.

    These are new competitive and legal threats that could weigh on Amgen's stock.

▲2▼2

Amgen's growth drivers offset legal and regulatory setbacks

  • Growth drivers now 70% of sales Amgen's key growth drugs (Repatha, rare disease) grew 24% and now make up 70% of total sales, offsetting declines in older drugs. This shows the company's transition is working, which supports the stock price.

    This is the core positive force behind Amgen's business momentum.

  • MariTide and Repatha data advance Amgen's obesity drug MariTide is in phase 3 trials, and Repatha cut heart events by 29% in high-risk diabetes patients. These could become major new revenue sources, lifting future earnings expectations.

    Pipeline progress is a key driver of long-term growth and investor optimism.

  • Tavneos regulatory and data integrity crisis EU regulators recommend revoking Tavneos approval, and NEJM retracted the trial supporting it after FDA found data issues. The FDA may withdraw the drug in the US. This creates uncertainty and could hurt Amgen's reputation and sales.

    This is a major negative regulatory event that threatens a marketed drug and investor confidence.

  • Competition and patent risks Roche's divarasib beat Amgen's Lumakras in lung cancer, threatening Lumakras sales. Also, a jury found Amgen willfully infringed a patent, raising legal concerns. Both could pressure future revenue and increase costs.

    These are new competitive and legal threats that could weigh on Amgen's stock.

Replimune Group Inc (REPL)

Q3 2026
▲2▼2

FDA panel backs RP1, approval and offering reshape Replimune

  • FDA panel backs RP1 An FDA advisory panel voted 10-3 that RP1's single-arm IGNYTE data were clinically meaningful, reversing earlier doubts and sending shares up over 130% premarket; Wedbush upgraded the stock.

    This was the key regulatory catalyst that drove the stock's massive jump.

  • Accelerated approval of Tudriqev The FDA granted accelerated approval to Tudriqev plus Opdivo for advanced melanoma (24.2% response rate), giving Replimune its first commercial product and revenue stream.

    This approval is a major milestone that transforms the company's business prospects.

  • Securities fraud investigations Two law firms (Kirby McInerney, Bragar Eagel & Squire) and later Pomerantz opened securities fraud investigations into whether the company misled investors before the FDA's critical July 28 briefing documents.

    These investigations pose a legal overhang that could weigh on the stock.

  • Dilutive stock offering A $150 million stock offering at $12.06/share issued ~9.7 million new shares, diluting existing holders.

    The offering dilutes current shareholders and can pressure the share price.

July 2026
▲2▼2

FDA panel backs RP1, approval and offering reshape Replimune

  • FDA panel backs RP1 An FDA advisory panel voted 10-3 that RP1's single-arm IGNYTE data were clinically meaningful, reversing earlier doubts and sending shares up over 130% premarket; Wedbush upgraded the stock.

    This was the key regulatory catalyst that drove the stock's massive jump.

  • Accelerated approval of Tudriqev The FDA granted accelerated approval to Tudriqev plus Opdivo for advanced melanoma (24.2% response rate), giving Replimune its first commercial product and revenue stream.

    This approval is a major milestone that transforms the company's business prospects.

  • Securities fraud investigations Two law firms (Kirby McInerney, Bragar Eagel & Squire) and later Pomerantz opened securities fraud investigations into whether the company misled investors before the FDA's critical July 28 briefing documents.

    These investigations pose a legal overhang that could weigh on the stock.

  • Dilutive stock offering A $150 million stock offering at $12.06/share issued ~9.7 million new shares, diluting existing holders.

    The offering dilutes current shareholders and can pressure the share price.

Latest
▲2▼2

FDA approves Replimune's first drug, then company raises $150M

  • FDA grants accelerated approval for Tudriqev The FDA granted accelerated approval to Replimune's Tudriqev combined with Opdivo for advanced melanoma, based on a 24.2% response rate. This is the company's first commercial product, turning it from a clinical-stage hopeful into a revenue-generating business and lifting the stock.

    This is the single biggest new event: approval validates the drug and opens a path to sales.

  • Securities fraud investigation expands to Pomerantz Pomerantz LLP opened an investigation into whether Replimune misled investors before the FDA's July 28 briefing documents questioned the RP1 data. This adds to earlier law firm probes, keeping a legal cloud over the stock and potentially weighing on the price.

    It is a new law firm joining the investigation, adding fresh negative pressure.

  • $150 million stock offering dilutes shareholders Replimune priced a $150 million stock sale at $12.06 per share, issuing about 9.7 million new shares. This raises cash to launch Tudriqev but dilutes existing investors' ownership, which typically pushes the stock down in the short term.

    It is a new financing event that directly affects share count and cash position.

  • FDA flexibility and biotech rally support Replimune The FDA signaled a more flexible approval approach for serious diseases, opening new pathways for Replimune and others. This supportive regulatory backdrop helped biotech stocks broadly and made RP1's eventual approval more likely, lifting sentiment around Replimune.

    It explains the favorable regulatory environment that helped Replimune's path to approval.

▲2▼1

FDA panel backs RP1, reversing prior briefing-document collapse

  • FDA advisory panel votes 10-3 in favor of RP1 An FDA advisory committee voted 10 to 3 that RP1's single-arm IGNYTE study results are evaluable and clinically meaningful for advanced melanoma. This removes the main regulatory doubt and makes approval by the August 2 target date far more likely, pushing the stock sharply higher.

    This is the core new event that flipped sentiment and drove the huge price jump.

  • Stock surges over 130% premarket, analyst upgrade Replimune shares soared more than 130% before the open and were up about 94-125% during the day after the panel vote. Wedbush upgraded the stock to outperform from neutral, a sign that professional investors now see the approval path as much clearer.

    Shows the market's immediate, large positive reaction and a key analyst endorsement.

  • Securities fraud investigations launched Two law firms, Kirby McInerney and Bragar Eagel & Squire, opened investigations into whether Replimune misled investors before the FDA's July 28 briefing documents called the RP1 study non-interpretable. No lawsuit has been filed yet, but this legal cloud could weigh on the stock.

    A real counterweight that could hurt the stock even after the positive panel vote.

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