Oppenheimer & Co. Inc. Strengthens Equities and Biotech Research Teams with Addition of Kostas Biliouris, Ph.D.

Oppenheimer (NYSE: OPY) announced on Dec. 8, 2025 that Kostas Biliouris, Ph.D., joined as Managing Director on its Biotech Research Team, based in New York and reporting to William Bird.

Rhea-AI Summary

Oppenheimer (NYSE: OPY) announced on Dec. 8, 2025 that Kostas Biliouris, Ph.D., joined as Managing Director on its Biotech Research Team, based in New York and reporting to William Bird.

Biliouris previously worked at BMO Capital Markets covering genetic medicines, was a VP in biotech research at Morgan Stanley, and held drug development and product strategy roles at Novartis. His background includes a Ph.D. in biochemical engineering and scientific publications with Biogen, Ionis, Merck, Novartis, and the FDA. The firm said the hire strengthens Oppenheimer's long-standing healthcare and biotech research franchise and expands coverage across genetic medicines and related sectors.

Argus Dec 8 session

+0.19% close to close Open Argus

Details

News Market Reaction – OPY

On Dec 8, the day this news came out, OPY closed 0.19% above the previous close.

Data tracked by StockTitan Argus for the Dec 8 session.

Historical Context

5 past events · Latest: Nov 17

5 events

1. Nov 17

   Leadership appointment

   24h Move

   -4.1%

   Appointed Keith Peterson as Head of Cash Equity Sales and Trading.

2. Oct 31

   Quarterly earnings

   24h Move

   +0.7%

   Reported Q3 2025 results with higher revenue but lower EPS year over year.

3. Oct 29

   Leadership appointment

   24h Move

   -1.4%

   Hired Guy T. Logan as MD, Head of Infrastructure & Mid-Atlantic Region.

4. Oct 06

   Leadership appointment

   24h Move

   +0.2%

   Named James Yoo MD in Healthcare Equity Capital Markets Investment Banking.

5. Sep 30

   Platform expansion

   24h Move

   -2.6%

   Expanded CAPS to a comprehensive multi-asset custody and prime platform.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Key Terms

genetic medicines, biochemical engineering, securities analysis

3 terms

genetic medicines medical

"where he was a Director, mainly covering the genetic medicines space."

Genetic medicines are treatments that work by changing, replacing, or reprogramming a person’s genes or the instructions those genes send, with the goal of preventing or curing disease rather than just easing symptoms. For investors, they matter because they can offer transformative, often one-time therapies that command high prices and durable outcomes, but they also carry long development timelines, regulatory scrutiny and complex manufacturing risks — like backing a high-reward, high-risk technology startup.

biochemical engineering medical

"His background includes a Ph.D. in biochemical engineering and his scientific work"

Biochemical engineering applies principles of chemistry, biology and engineering to design and scale processes that use living cells, enzymes or biological molecules to make products like drugs, enzymes, fuels and food ingredients. For investors, it matters because these processes determine how quickly and cheaply a product can be manufactured, the likelihood of meeting safety and regulatory standards, and therefore the company’s production costs, profit margins and ability to grow — like turning a kitchen recipe into a factory line.

securities analysis financial

"industry experience, and securities analysis that fits directly into our approach"

Securities analysis is the process of examining financial information, market trends, and other factors to estimate the value and risk of stocks, bonds or similar investments. It matters to investors because it’s like inspecting a used car before buying: it helps reveal whether a security is likely to gain or lose value, how risky it is, and whether it fits an investor’s goals and tolerance for loss.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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The addition of well-respected biotech expert strengthens one of Oppenheimer's longest-standing franchise areas

NEW YORK, Dec. 8, 2025 /PRNewswire/ -- Oppenheimer & Co. Inc., a leading investment bank, wealth manager and subsidiary of Oppenheimer Holdings (NYSE: OPY), today announced that Kostas Biliouris has joined the firm as Managing Director on its Biotech Research Team. He will report to William (Bill) Bird, Director of Research, and be based in New York City.

Biliouris comes to Oppenheimer from BMO Capital Markets, where he was a Director, mainly covering the genetic medicines space. Before BMO, he was a VP in Biotech Research at Morgan Stanley and worked in drug development and product strategy at Novartis. His background includes a Ph.D. in biochemical engineering and his scientific work was published in collaboration with Biogen, Ionis, Merck, Novartis, and the FDA.

"Kostas brings a rare combination of scientific depth, industry experience, and securities analysis that fits directly into our approach to biotech equity research," Bird said. "His commercial mindset has been shaped by years of engagement with investors and corporate leaders, making him highly regarded by institutional and corporate clients. We are excited to expand Oppenheimer's research coverage of biotech, an area of rapid innovation and increasing focus for our clients. Kostas brings extraordinary experience and perspective and we are thrilled to have him onboard."

Oppenheimer provides coverage across the healthcare ecosystem, including biotechnology, pharmaceuticals, medical technology, and related sectors. The healthcare franchise has long been one of the firm's most established areas of expertise.

"I am excited to join Oppenheimer's research team and contribute to a platform known for its commitment to Healthcare and thoughtful industry coverage," Biliouris said. "The pace of innovation in genetic medicines and the broader biotech space continues to accelerate, and I look forward to working with colleagues to help make sense of these developments for the firm's clients."

About Oppenheimer Holdings Inc.
Oppenheimer Holdings Inc., through its Oppenheimer & Co. Inc. subsidiary, and related entities, provides a full range of wealth management, securities brokerage, and investment banking services to high-net-worth individuals, families, corporate executives, businesses, and institutions. For more information, please visit www.oppenheimer.com.

Media Contact:
Michael Dugan
Haven Tower Group LLC
424 317 4852
mdugan@haventower.com

View original content:https://www.prnewswire.com/news-releases/oppenheimer--co-inc-strengthens-equities-and-biotech-research-teams-with-addition-of-kostas-biliouris-phd-302632809.html

SOURCE Oppenheimer & Co. Inc.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

Who is Kostas Biliouris and what role did he join at Oppenheimer (OPY) on Dec. 8, 2025?

Kostas Biliouris joined Oppenheimer as Managing Director on the Biotech Research Team, reporting to William Bird and based in New York.

What is Kostas Biliouris's experience relevant to Oppenheimer's biotech coverage (OPY)?

He previously covered genetic medicines at BMO Capital Markets, was VP in biotech research at Morgan Stanley, and worked in drug development and product strategy at Novartis.

How does the December 8, 2025 hire affect Oppenheimer's (OPY) healthcare research coverage?

The firm says the hire strengthens its long-standing healthcare and biotech research franchise and expands expertise in genetic medicines and related sectors.

Will Kostas Biliouris's research at Oppenheimer (OPY) focus on genetic medicines?

Yes; his background and prior coverage emphasize the genetic medicines space and related biotech areas.

Who will Kostas Biliouris report to at Oppenheimer (OPY) and where is he based?

He will report to William (Bill) Bird, Director of Research, and is based in New York City.

How can investors follow Oppenheimer's (OPY) expanded biotech research after the hire?

Investors can monitor Oppenheimer research publications and coverage updates from the firm's healthcare research team for new reports and analyst commentary.