The Cooper Companies vs Lantheus: why the prices moved differently

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

The Cooper Companies, Inc (COO)

Q3 20269 Sep – 18 Sep 2026

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Guidance cut and strategic review ends with CooperSurgical retained Cooper cut its fiscal 2026 revenue and profit outlook below what analysts expected and decided to keep its women's health unit, CooperSurgical, instead of selling it. The weak forecast and no-sale decision sent the stock down sharply, because investors had hoped a sale would unlock value.
This is the main new event that drove the stock down this period.
Buyback expanded to $3 billion Alongside the weak guidance, Cooper increased its share buyback program from $2 billion to $3 billion, leaving about $1.5 billion available. Buying back more stock can support the share price by reducing the number of shares outstanding, but it did not offset the negative reaction to the guidance cut.
This is a new capital action that partially offsets the negative guidance news.
Activist Jana Partners pushes for sale and CEO change Activist investor Jana Partners sent a letter urging Cooper to pursue a sale, replace its CEO, and consider selling assets. The stock rose 1.7% after hours on the news, as investors saw a chance for a shake-up that could boost value after a 34% year-to-date decline.
This is the latest new development that could change the company's direction and stock price.

September 20269 Sep – 18 Sep 2026

▲2▼1

Guidance cut and strategic review ends with CooperSurgical retained Cooper cut its fiscal 2026 revenue and profit outlook below what analysts expected and decided to keep its women's health unit, CooperSurgical, instead of selling it. The weak forecast and no-sale decision sent the stock down sharply, because investors had hoped a sale would unlock value.
This is the main new event that drove the stock down this period.
Buyback expanded to $3 billion Alongside the weak guidance, Cooper increased its share buyback program from $2 billion to $3 billion, leaving about $1.5 billion available. Buying back more stock can support the share price by reducing the number of shares outstanding, but it did not offset the negative reaction to the guidance cut.
This is a new capital action that partially offsets the negative guidance news.
Activist Jana Partners pushes for sale and CEO change Activist investor Jana Partners sent a letter urging Cooper to pursue a sale, replace its CEO, and consider selling assets. The stock rose 1.7% after hours on the news, as investors saw a chance for a shake-up that could boost value after a 34% year-to-date decline.
This is the latest new development that could change the company's direction and stock price.

Latest9 Sep – 18 Sep 2026

▲2▼1

Guidance cut and strategic review ends with CooperSurgical retained Cooper cut its fiscal 2026 revenue and profit outlook below what analysts expected and decided to keep its women's health unit, CooperSurgical, instead of selling it. The weak forecast and no-sale decision sent the stock down sharply, because investors had hoped a sale would unlock value.
This is the main new event that drove the stock down this period.
Buyback expanded to $3 billion Alongside the weak guidance, Cooper increased its share buyback program from $2 billion to $3 billion, leaving about $1.5 billion available. Buying back more stock can support the share price by reducing the number of shares outstanding, but it did not offset the negative reaction to the guidance cut.
This is a new capital action that partially offsets the negative guidance news.
Activist Jana Partners pushes for sale and CEO change Activist investor Jana Partners sent a letter urging Cooper to pursue a sale, replace its CEO, and consider selling assets. The stock rose 1.7% after hours on the news, as investors saw a chance for a shake-up that could boost value after a 34% year-to-date decline.
This is the latest new development that could change the company's direction and stock price.

Q3 202626 Jun – 14 Aug 2026

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Curium agrees to acquire Lantheus for up to $8 billion Curium will pay $102.50 per share in cash plus up to $12 more if sales targets are met, a 14.9% premium. This puts a firm floor under the stock and is the main reason it trades near the offer price.
The buyout is the single biggest force driving LNTH's price and future value.
FDA approves Tauklarify for tau PET imaging The FDA approved Tauklarify, a new imaging agent for Alzheimer's tau pathology. This adds a new product to Lantheus's portfolio and could support the contingent value rights tied to future sales.
A new FDA approval is a fresh positive catalyst that can affect the buyout's contingent payments.
FDA rejects LNTH-2501 due to third-party facility issues The FDA issued a Complete Response Letter for LNTH-2501, a PET diagnostic for neuroendocrine tumors, because of unresolved manufacturing issues at a partner's facility. This delays a potential product but does not question the drug's data.
This is a fresh regulatory setback that could weigh on sentiment and future growth prospects.

July 202626 Jun – 14 Aug 2026

▲2▼1

Curium agrees to acquire Lantheus for up to $8 billion Curium will pay $102.50 per share in cash plus up to $12 more if sales targets are met, a 14.9% premium. This puts a firm floor under the stock and is the main reason it trades near the offer price.
The buyout is the single biggest force driving LNTH's price and future value.
FDA approves Tauklarify for tau PET imaging The FDA approved Tauklarify, a new imaging agent for Alzheimer's tau pathology. This adds a new product to Lantheus's portfolio and could support the contingent value rights tied to future sales.
A new FDA approval is a fresh positive catalyst that can affect the buyout's contingent payments.
FDA rejects LNTH-2501 due to third-party facility issues The FDA issued a Complete Response Letter for LNTH-2501, a PET diagnostic for neuroendocrine tumors, because of unresolved manufacturing issues at a partner's facility. This delays a potential product but does not question the drug's data.
This is a fresh regulatory setback that could weigh on sentiment and future growth prospects.

Latest26 Jun – 14 Aug 2026

▲2▼1

Curium agrees to acquire Lantheus for up to $8 billion Curium will pay $102.50 per share in cash plus up to $12 more if sales targets are met, a 14.9% premium. This puts a firm floor under the stock and is the main reason it trades near the offer price.
The buyout is the single biggest force driving LNTH's price and future value.
FDA approves Tauklarify for tau PET imaging The FDA approved Tauklarify, a new imaging agent for Alzheimer's tau pathology. This adds a new product to Lantheus's portfolio and could support the contingent value rights tied to future sales.
A new FDA approval is a fresh positive catalyst that can affect the buyout's contingent payments.
FDA rejects LNTH-2501 due to third-party facility issues The FDA issued a Complete Response Letter for LNTH-2501, a PET diagnostic for neuroendocrine tumors, because of unresolved manufacturing issues at a partner's facility. This delays a potential product but does not question the drug's data.
This is a fresh regulatory setback that could weigh on sentiment and future growth prospects.