US IPOs and Secondary Offerings, IPO Boutique

IPO Boutique

US IPOs and Secondary Offerings

For more than 20 years, we have been providing research, analysis, commentary and ratings on US Equity Capital Markets to institutional investors (US IPOs and Secondary Offerings). Our vast network of contacts across the Equity Capital Markets and attention-to-detail sets us apart from our competitors.

Since 2012, we have achieved a successful hit rating on 89% of Buy-rated IPOs. The collective “Buy” ratings averaged a first trade of 16.3% above issue.Our Neutral Rated Deals averaged just 2% above the issue price at first trade.

Our written research includes pre-IPO notes before the deal is launched, follow-up analysis once the deal is live and post-listing trading analysis as well.

In addition, we provide a high-touch premium desk access which includes analyst access, as well as real time insights on US IPOs as well as secondary offerings.

IPOs and Secondary Offerings

Equity Capital Markets

Aardvark Therapeutics / Equity Capital Markets

<ul>
<li>The company priced 5.88 million shares at $16.00—the low end of its $16.00–$18.00 range—and opened immediately underwater at $15.18, a 5.1% decline.</li>
<li>In our pre-pricing notes, we flagged the lack of sector-dedicated crossover funds in earlier rounds and a muted “buzz factor” ahead of launch.</li>
<li>Aardvark closed out the 2025 biotech IPO calendar—and in many ways, its performance “froze” the market.</li>
</ul>


The company priced 5.88 million shares at $16.00—the low end of its $16.00–$18.00 range—and opened immediately underwater at $15.18, a 5.1% decline.
In our pre-pricing notes, we flagged the lack of sector-dedicated crossover funds in earlier rounds and a muted “buzz factor” ahead of launch.
Aardvark closed out the 2025 biotech IPO calendar—and in many ways, its performance “froze” the market.


Aardvark Therapeutics (AARD) Six Month Summary: A Cold Debut That Froze the Biotech Market

Sionna Therapeutics / Equity Capital Markets

<ul>
<li>. The company priced an upsized 10.6 million share deal at $18.00—the high end of its $16.00–$18.00 range—and opened at $25.00, a 38.9% premium at first trade.</li>
<li>The turnaround began in late April, and the rebound was steady. A key catalyst came in June when Sionna reported Phase I data that met market expectations.</li>
<li>Behind Metsera, Sionna Therapeutics has been the number two biotech IPO performer in 2025. </li>
</ul>


. The company priced an upsized 10.6 million share deal at $18.00—the high end of its $16.00–$18.00 range—and opened at $25.00, a 38.9% premium at first trade.
The turnaround began in late April, and the rebound was steady. A key catalyst came in June when Sionna reported Phase I data that met market expectations.
Behind Metsera, Sionna Therapeutics has been the number two biotech IPO performer in 2025. 


Sionna Therapeutics (SION) Six Month Summary: Hot Start, Cold Reality, and a Strong Spring Rebound

<ul>
<li>Ambiq Micro priced 4.0 million shares at $24.00.  The  share count was upsized 17.6% and the pricing was at the upper-half of the range. </li>
<li>The performance of Ambiq Micro is one that squarely places them among the best for the year in terms of opening performance. </li>
<li>A conservative valuation and a small deal size assisted in this IPO being wildly successful.</li>
</ul>


Ambiq Micro priced 4.0 million shares at $24.00.  The  share count was upsized 17.6% and the pricing was at the upper-half of the range. 
The performance of Ambiq Micro is one that squarely places them among the best for the year in terms of opening performance. 
A conservative valuation and a small deal size assisted in this IPO being wildly successful.


Ambiq Micro, Inc. (AMBQ): Semi-Conductor Surges, Upsized IPO Jumps 58% at Open

Research from Water Tower Research, Water Tower Research

Water Tower Research

Research from Water Tower Research

Water Tower Research is a leading equity research firm that provides research on micro, small and mid cap companies.

Water Tower Research was founded by Wall Street veterans after witnessing a fundamental shift in the investment research industry with the result being a declining knowledge base among investors, a lack of awareness and a shrinking pool of fundamental research being conducted on companies across the small-cap and micro-cap spectrum. The same issues are now increasingly occurring in the mid-cap space. This sea change within the investment community is impacting not only the companies themselves but also current shareholders and potential investors. With significantly less active sell-side sponsorship by Wall Street, a substantial information gap has developed between companies and various constituents in the financial community. The net result is fewer channels for insight and information to flow between companies and investors.

Equity Research Firm

Thematic (Sector/Industry)

<ul><li>Pharma benefited from some defensive sector rotation, led by the big obesity duo, LLY and NVO, ahead of this week’s major diabetes conference (ADA 2025).</li><li>Vaccine concerns reached new heights as RFK Jr. suddenly (but not surprising) dismantled the CDC’s ACIP (vaccine expert panel) and replaced it with vaccine skeptics to reshape vaccine policy and guidance.</li><li>Most- Favored-Nation (MFN) appeared to be in a stand-off as the 30- day deadline (June 11) for drug price targets passed without any action. </li></ul>

Pharma benefited from some defensive sector rotation, led by the big obesity duo, LLY and NVO, ahead of this week’s major diabetes conference (ADA 2025).Vaccine concerns reached new heights as RFK Jr. suddenly (but not surprising) dismantled the CDC’s ACIP (vaccine expert panel) and replaced it with vaccine skeptics to reshape vaccine policy and guidance.Most- Favored-Nation (MFN) appeared to be in a stand-off as the 30- day deadline (June 11) for drug price targets passed without any action. 

Biopharma Week in Review - Vaccine Advisory Board Overhaul Sudden but Not Surprising

<ul><li>In a week of bad industry news, biopharma surprisingly held onto its bounce from recent two-year lows.</li><li>With pharma tariffs now expected by June and federal health agencies’ prospects looking worse, we may be close to peak negativity, but too much uncertainty remains for any confidence in a bottom.</li><li>In obesity, LLY had a win for an oral GLP-1, while PFE lost, affecting NVO, GPCR, VKTX, AMGN, MTSR, ALT, and TERN. VERV gained on CVD data and BMY’s heart drug failed, affecting CYTK and EWTX, while MURA stopped development.</li></ul>

In a week of bad industry news, biopharma surprisingly held onto its bounce from recent two-year lows.With pharma tariffs now expected by June and federal health agencies’ prospects looking worse, we may be close to peak negativity, but too much uncertainty remains for any confidence in a bottom.In obesity, LLY had a win for an oral GLP-1, while PFE lost, affecting NVO, GPCR, VKTX, AMGN, MTSR, ALT, and TERN. VERV gained on CVD data and BMY’s heart drug failed, affecting CYTK and EWTX, while MURA stopped development.

Biopharma Week in Review Shrugging Off Constant Bad News; LLY Winning Obesity Drug Race

United States

Clinical-stage biopharmaceutical company accelerating the next generation of medicines for obesity and metabolic diseases.

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Metsera (MTSR US)

Aardvark Therapeutics (AARD) Six Month Summary: A Cold Debut That Froze the Biotech Market

Aardvark's biotech IPO priced at low end, opened underwater, highlighting lack of sector interest and market freeze in 2025.

IPO Boutique

Sionna Therapeutics (SION) Six Month Summary: Hot Start, Cold Reality, and a Strong Spring Rebound

Sionna Therapeutics' successful IPO sees strong market debut with 38.9% premium, fueled by positive Phase I data for Metsera.

IPO Boutique

Ambiq Micro, Inc. (AMBQ): Semi-Conductor Surges, Upsized IPO Jumps 58% at Open

Ambiq Micro's successful IPO saw 4.0 million shares priced at $24.00, upsized by 17.6% and at the upper end of the range, leading to strong...

IPO Boutique

Biopharma Week in Review - Vaccine Advisory Board Overhaul Sudden but Not Surprising

Pharma benefited from some defensive sector rotation, led by the big obesity duo, LLY and NVO, ahead of this week’s major diabetes conference (ADA...

Water Tower Research

Biopharma Week in Review Shrugging Off Constant Bad News; LLY Winning Obesity Drug Race

With pharma tariffs now expected by June and federal health agencies’ prospects looking worse, we may be close to peak negativity, but too much...

Water Tower Research

Price Gauge

52-week Range

Market Cap (USDm)

P/E

Dividend (Yield)

Aardvark Therapeutics (AARD) Six Month Summary: A Cold Debut That Froze the Biotech Market

​Aardvark's biotech IPO priced at low end, opened underwater, highlighting lack of sector interest and market freeze in 2025.

IPO Boutique

Sionna Therapeutics (SION) Six Month Summary: Hot Start, Cold Reality, and a Strong Spring Rebound

​Sionna Therapeutics' successful IPO sees strong market debut with 38.9% premium, fueled by positive Phase I data for Metsera.

IPO Boutique

Ambiq Micro, Inc. (AMBQ): Semi-Conductor Surges, Upsized IPO Jumps 58% at Open

​Ambiq Micro's successful IPO saw 4.0 million shares priced at $24.00, upsized by 17.6% and at the upper end of the range, leading to strong...

IPO Boutique

Biopharma Week in Review - Vaccine Advisory Board Overhaul Sudden but Not Surprising

Pharma benefited from some defensive sector rotation, led by the big obesity duo, LLY and NVO, ahead of this week’s major diabetes conference (ADA...

Water Tower Research

Biopharma Week in Review Shrugging Off Constant Bad News; LLY Winning Obesity Drug Race

With pharma tariffs now expected by June and federal health agencies’ prospects looking worse, we may be close to peak negativity, but too much...

Water Tower Research

Aardvark's biotech IPO priced at low end, opened underwater, highlighting lack of sector interest and market freeze in 2025.

Sionna Therapeutics' successful IPO sees strong market debut with 38.9% premium, fueled by positive Phase I data for Metsera.

Ambiq Micro's successful IPO saw 4.0 million shares priced at $24.00, upsized by 17.6% and at the upper end of the range, leading to strong...