Simulations Plus vs Tempus AI, Inc. Class A Common Stock: why the prices moved differently

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

Simulations Plus Inc (SLP)

Q3 202617 Jun – 24 Jul 2026

▲3▼1

Altaris buyout at $18.50 cash anchors SLP; old accounting probe resurfaces

Altaris to buy SLP for $375M all-cash Altaris agreed to acquire Simulations Plus for about $375 million, or $18.50 a share in cash — a 26% premium to the 60-day average price. The board unanimously approved it, with closing expected in late 2026. This sets a firm floor under the stock and is the main reason it trades near the deal price.
The buyout is the single biggest force setting SLP's price now.
Agentic AI layer built with NVIDIA BioNeMo Simulations Plus is building an AI 'agent' layer for its Composer platform using NVIDIA's BioNeMo toolkit, expanding a May 2026 partnership. It aims to speed up drug-modeling workflows while keeping scientific results traceable. This supports the company's long-term technology story, though the pending buyout now matters more for the share price.
It shows the technology value underpinning the company being acquired.
Q3 swing to profit on no impairment charge Simulations Plus reported Q3 net income of $3.58 million versus a $67.32 million loss a year earlier, which had included a $77.22 million write-down. Revenue rose 7% to $21.89 million, but adjusted earnings fell to $0.30 a share from $0.45. Profitability improved, yet the core business still shows pressure.
It gives the latest financial health picture behind the buyout.
Investor investigation revives old accounting worries Johnson Fistel is investigating Simulations Plus over a 2025 revenue guidance cut, a large net loss, and the dismissal of auditor Grant Thornton, which flagged unresolved segment-reporting and internal-control issues. These are old disclosures, but the probe keeps the accounting overhang in view and is a real counterweight to the buyout news.
It is the main risk factor that could complicate or delay the deal.

July 202617 Jun – 24 Jul 2026

▲3▼1

Altaris buyout at $18.50 cash anchors SLP; old accounting probe resurfaces

Altaris to buy SLP for $375M all-cash Altaris agreed to acquire Simulations Plus for about $375 million, or $18.50 a share in cash — a 26% premium to the 60-day average price. The board unanimously approved it, with closing expected in late 2026. This sets a firm floor under the stock and is the main reason it trades near the deal price.
The buyout is the single biggest force setting SLP's price now.
Agentic AI layer built with NVIDIA BioNeMo Simulations Plus is building an AI 'agent' layer for its Composer platform using NVIDIA's BioNeMo toolkit, expanding a May 2026 partnership. It aims to speed up drug-modeling workflows while keeping scientific results traceable. This supports the company's long-term technology story, though the pending buyout now matters more for the share price.
It shows the technology value underpinning the company being acquired.
Q3 swing to profit on no impairment charge Simulations Plus reported Q3 net income of $3.58 million versus a $67.32 million loss a year earlier, which had included a $77.22 million write-down. Revenue rose 7% to $21.89 million, but adjusted earnings fell to $0.30 a share from $0.45. Profitability improved, yet the core business still shows pressure.
It gives the latest financial health picture behind the buyout.
Investor investigation revives old accounting worries Johnson Fistel is investigating Simulations Plus over a 2025 revenue guidance cut, a large net loss, and the dismissal of auditor Grant Thornton, which flagged unresolved segment-reporting and internal-control issues. These are old disclosures, but the probe keeps the accounting overhang in view and is a real counterweight to the buyout news.
It is the main risk factor that could complicate or delay the deal.

Latest17 Jun – 24 Jul 2026

▲3▼1

Altaris buyout at $18.50 cash anchors SLP; old accounting probe resurfaces

Altaris to buy SLP for $375M all-cash Altaris agreed to acquire Simulations Plus for about $375 million, or $18.50 a share in cash — a 26% premium to the 60-day average price. The board unanimously approved it, with closing expected in late 2026. This sets a firm floor under the stock and is the main reason it trades near the deal price.
The buyout is the single biggest force setting SLP's price now.
Agentic AI layer built with NVIDIA BioNeMo Simulations Plus is building an AI 'agent' layer for its Composer platform using NVIDIA's BioNeMo toolkit, expanding a May 2026 partnership. It aims to speed up drug-modeling workflows while keeping scientific results traceable. This supports the company's long-term technology story, though the pending buyout now matters more for the share price.
It shows the technology value underpinning the company being acquired.
Q3 swing to profit on no impairment charge Simulations Plus reported Q3 net income of $3.58 million versus a $67.32 million loss a year earlier, which had included a $77.22 million write-down. Revenue rose 7% to $21.89 million, but adjusted earnings fell to $0.30 a share from $0.45. Profitability improved, yet the core business still shows pressure.
It gives the latest financial health picture behind the buyout.
Investor investigation revives old accounting worries Johnson Fistel is investigating Simulations Plus over a 2025 revenue guidance cut, a large net loss, and the dismissal of auditor Grant Thornton, which flagged unresolved segment-reporting and internal-control issues. These are old disclosures, but the probe keeps the accounting overhang in view and is a real counterweight to the buyout news.
It is the main risk factor that could complicate or delay the deal.

Tempus AI, Inc. Class A Common Stock (TEM)

Q3 202618 Jun – 11 Sep 2026

▲4

Tempus swings to profit, raises outlook, expands cancer data reach

Q2 profit and raised 2026 revenue guidance Tempus reported Q2 2026 net income of $5.64 million, a swing from a $42.84 million loss a year earlier, and lifted full-year revenue guidance to $1.60–$1.61 billion. Turning profitable and raising the outlook supports the growth story and helps justify a higher stock price.
This is the period's clearest fundamental shift, directly improving earnings and forward revenue expectations.
Personalis acquisition deepens cancer recurrence testing Tempus agreed to buy Personalis for $16.25 per share, a $1.5 billion enterprise value, adding minimal residual disease testing to its oncology platform. The deal expands its cancer genomics and data offerings, though the initial market reaction was slightly negative on cost concerns.
The acquisition is a major strategic move that broadens Tempus's technology and data moat, affecting long-term growth.
mRNA melanoma trial win lifts oncology data demand A phase 3 trial showed a customized mRNA melanoma treatment improved recurrence-free survival, sending Tempus shares up 39.5%. The result highlights how Tempus's data and AI tools are embedded in cutting-edge oncology, potentially boosting demand for its data and testing services.
This event directly drove a large price move and validates Tempus's role in advanced cancer research.
100,000-genome dataset expands AI research platform Tempus launched an initiative to build a 100,000 whole-genome dataset linked to clinical outcomes, with a long-term goal of one million genomes. This expands its data platform for AI-driven research, strengthening its competitive position and future data revenue potential.
The new dataset initiative is a fresh expansion of Tempus's core data asset, supporting long-term growth.

July 202618 Jun – 11 Sep 2026

▲4

Tempus swings to profit, raises outlook, expands cancer data reach

Q2 profit and raised 2026 revenue guidance Tempus reported Q2 2026 net income of $5.64 million, a swing from a $42.84 million loss a year earlier, and lifted full-year revenue guidance to $1.60–$1.61 billion. Turning profitable and raising the outlook supports the growth story and helps justify a higher stock price.
This is the period's clearest fundamental shift, directly improving earnings and forward revenue expectations.
Personalis acquisition deepens cancer recurrence testing Tempus agreed to buy Personalis for $16.25 per share, a $1.5 billion enterprise value, adding minimal residual disease testing to its oncology platform. The deal expands its cancer genomics and data offerings, though the initial market reaction was slightly negative on cost concerns.
The acquisition is a major strategic move that broadens Tempus's technology and data moat, affecting long-term growth.
mRNA melanoma trial win lifts oncology data demand A phase 3 trial showed a customized mRNA melanoma treatment improved recurrence-free survival, sending Tempus shares up 39.5%. The result highlights how Tempus's data and AI tools are embedded in cutting-edge oncology, potentially boosting demand for its data and testing services.
This event directly drove a large price move and validates Tempus's role in advanced cancer research.
100,000-genome dataset expands AI research platform Tempus launched an initiative to build a 100,000 whole-genome dataset linked to clinical outcomes, with a long-term goal of one million genomes. This expands its data platform for AI-driven research, strengthening its competitive position and future data revenue potential.
The new dataset initiative is a fresh expansion of Tempus's core data asset, supporting long-term growth.

Latest18 Jun – 11 Sep 2026

▲4

Tempus swings to profit, raises outlook, expands cancer data reach

Q2 profit and raised 2026 revenue guidance Tempus reported Q2 2026 net income of $5.64 million, a swing from a $42.84 million loss a year earlier, and lifted full-year revenue guidance to $1.60–$1.61 billion. Turning profitable and raising the outlook supports the growth story and helps justify a higher stock price.
This is the period's clearest fundamental shift, directly improving earnings and forward revenue expectations.
Personalis acquisition deepens cancer recurrence testing Tempus agreed to buy Personalis for $16.25 per share, a $1.5 billion enterprise value, adding minimal residual disease testing to its oncology platform. The deal expands its cancer genomics and data offerings, though the initial market reaction was slightly negative on cost concerns.
The acquisition is a major strategic move that broadens Tempus's technology and data moat, affecting long-term growth.
mRNA melanoma trial win lifts oncology data demand A phase 3 trial showed a customized mRNA melanoma treatment improved recurrence-free survival, sending Tempus shares up 39.5%. The result highlights how Tempus's data and AI tools are embedded in cutting-edge oncology, potentially boosting demand for its data and testing services.
This event directly drove a large price move and validates Tempus's role in advanced cancer research.
100,000-genome dataset expands AI research platform Tempus launched an initiative to build a 100,000 whole-genome dataset linked to clinical outcomes, with a long-term goal of one million genomes. This expands its data platform for AI-driven research, strengthening its competitive position and future data revenue potential.
The new dataset initiative is a fresh expansion of Tempus's core data asset, supporting long-term growth.