NEW YORK--(BUSINESS WIRE)--May 30, 2025--
Tradeweb Markets Inc. (Nasdaq: TW), a leading, global operator of electronic marketplaces for rates, credit, equities and money markets, today announced the appointment of Sherry Marcus as Head of Artificial Intelligence (AI).
This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20250529178323/en/
Building on Tradeweb’s strong foundation utilizing AI to enhance price discovery, dealer selection and analytics, Ms. Marcus will lead the next generation of Tradeweb’s AI strategy serving more than 3,000 institutional, wholesale, retail advisory and corporate clients around the world. In this newly-created global role, she will report to Tradeweb Chief Technology Officer Justin Peterson.
Ms. Marcus joins Tradeweb from Amazon Web Services, where she led the 300-person science and data team behind Amazon Bedrock, the company’s flagship generative AI platform serving hundreds of thousands of enterprise customers. Previously, she was a Managing Director, Data and AI at BlackRock, creating a global AI office and leading the AI Leadership & Transformation team. Prior to this role, Ms. Marcus held various senior positions across financial services, including serving as Chief Data Analytics Officer at Millennium Partners and Global Head, Big Data Analytics at Credit Suisse.
Tradeweb’s Chief Technology Officer, Justin Peterson, commented: “Sherry Marcus is an influential voice on AI and financial markets, and we’re excited to welcome her to Tradeweb. With AI continuing to evolve at breakneck speed, Sherry’s impressive track record leading strategic, data-driven initiatives at top asset managers will be a strong asset to our team. We look forward to collaborating with her as Tradeweb scales its electronic solutions and continues to innovate with our clients.”
Ms. Marcus serves as Vice President and sits on the board of the MIT Club of New York. She is also on the board of the Allen Brain Institute, the Carnegie Mellon Computational Finance Department and acts as an advisor to the NYC Gen AI Council. Previously, she was a member of the NSA Advisory Board as well as the Science Board at the National Counter Terrorism Center.
Ms. Marcus received her bachelor’s in Applied Mathematics from Cornell University and her Ph.D. in Mathematics from MIT.
About Tradeweb Markets
Tradeweb Markets Inc. (Nasdaq: TW) is a leading, global operator of electronic marketplaces for rates, credit, equities and money markets. Founded in 1996, Tradeweb provides access to markets, data and analytics, electronic trading, straight-through-processing and reporting for more than 50 products to clients in the institutional, wholesale, retail and corporates markets. Advanced technologies developed by Tradeweb enhance price discovery, order execution and trade workflows while allowing for greater scale and helping to reduce risks in client trading operations. Tradeweb serves more than 3,000 clients in more than 85 countries. On average, Tradeweb facilitated more than $2.2 trillion in notional value traded per day over the past four fiscal quarters. For more information, please go to www.tradeweb.com.
Forward-Looking Statements
This release contains forward-looking statements within the meaning of the federal securities laws. Statements related to, among other things, our outlook and future performance, the industry and markets in which we operate, our expectations, beliefs, plans, strategies, objectives, prospects and assumptions and future events are forward-looking statements.
We have based these forward-looking statements on our current expectations, assumptions, estimates and projections. While we believe these expectations, assumptions, estimates and projections are reasonable, such forward-looking statements are only predictions and involve known and unknown risks and uncertainties, many of which are beyond our control. These and other important factors, including those discussed under the heading “Risk Factors” in the documents of Tradeweb Markets Inc. on file with or furnished to the SEC, may cause our actual results, performance or achievements to differ materially from those expressed or implied by these forward-looking statements. Given these risks and uncertainties, you are cautioned not to place undue reliance on such forward-looking statements. The forward-looking statements contained in this release are not guarantees of future events or performance and future events, our actual results of operations, financial condition or liquidity, and the development of the industry and markets in which we operate, may differ materially from the forward-looking statements contained in this release. In addition, even if future events, our results of operations, financial condition or liquidity, and events in the industry and markets in which we operate, are consistent with the forward-looking statements contained in this release, they may not be predictive of events, results or developments in future periods.
Any forward-looking statement that we make in this release speaks only as of the date of such statement. Except as required by law, we do not undertake any obligation to update or revise, or to publicly announce any update or revision to, any of the forward-looking statements, whether as a result of new information, future events or otherwise, after the date of this release.
Sherry Marcus, Head of AI, Tradeweb
LOS ANGELES (AP) — The high-profile private attorney for Nick Reiner was granted a request to be removed from his case Wednesday, but later told reporters that according to California law his client is not guilty of murder in the killing of his parents, Rob Reiner and Michele Singer Reiner.
“Circumstances beyond our control and more importantly circumstances beyond Nick's control have dictated that, sadly, it's made it impossible to continue our representation of Nick,” lawyer Alan Jackson said as he stood with his team outside a Los Angeles courthouse.
But, Jackson added, after weeks of investigation, “what we’ve learned, and you can take this to the bank, is that pursuant to the laws of this state, pursuant to the law of California, Nick Reiner is not guilty of murder. Print that.”
Jackson would not specify what he meant and took no questions at the brief news conference.
He spoke after a hearing where Nick Reiner was supposed to be arraigned and enter a plea to two charges of first-degree murder. Instead, after meeting with the Judge Theresa McGonigle in chambers, Jackson was replaced by a public defender and Reiner’s plea hearing was postponed to Feb. 23.
Jackson said that for legal and ethical reasons, he could not reveal why he had to leave the case. He first appeared in court representing Reiner at a hearing a few days after the beloved actor-director and his wife of 36 years were found dead with stab wounds in their home in the upscale Brentwood section of Los Angeles. Jackson did not say how he was hired — or who hired him. Generally, defendants use public defenders when they can't pay for a private attorney.
Jackson has become one of the most prominent defense attorneys in the nation in recent years after defending clients including Harvey Weinstein, Kevin Spacey and Karen Read at her intensely followed trials in Massachusetts.
After the judge granted Jackson's request to leave the case, Deputy Public Defender Kimberly Greene took over as Reiner’s attorney.
“The Public Defender’s Office recognizes what an unimaginable tragedy this is for the Reiner family and the Los Angeles community,” Deputy Public Defender Ricardo D. Garcia said in a rare public statement on a case from the office. “Our hearts go out to the Reiner family as they navigate this difficult time. We ask for your patience and compassion as the case moves through the legal process.”
During Wednesday's hearing, Reiner stood behind glass in a custody area of the courtroom wearing brown jail garb and with his hair shaved. Two deputies stood behind him. Jackson and his team stood in front of him on the other side of the glass. At one point, Reiner stood on his tiptoes to peer over the lawyers’ heads to look at the audience. He spoke only to agree to the delayed arraignment.
McGonigle approved the use of cameras inside the courtroom but said pictures could not be taken of the defendant. At Wednesday’s hearing, Reiner did not wear the suicide prevention smock he had on at his initial court appearance on Dec. 17.
Reiner, 32, the third of Rob Reiner's four children, has been held without bail since his arrest hours after his parents were found dead on Dec. 14.
A Reiner family spokesperson said in a statement after Wednesday's hearing that “They have the utmost trust in the legal process and will not comment further on matters related to the legal proceedings.”
Jackson, a former LA County prosecutor, had given no indication of the plans for his defense.
He said that just hours after Nick Reiner’s arrest, he and his team got a call about representing him. He did not say who called him.
“We dropped everything,” Jackson said. “For the last three weeks, we have devoted literally every waking hour to protecting Nick and his interests. We’ve investigated this matter top to bottom, back to front.”
He said they remain “deeply, deeply committed” to him and said, “We’re not just convinced; we know that the legal process will reveal the true facts.”
Rob Reiner, 78, and Michele Singer Reiner, 70, were killed early on the morning of Dec. 14, and they were found in the late afternoon, authorities said. The LA County Medical Examiner said in initial findings that they died from “multiple sharp force injuries,” but released no other details, and police have said nothing about possible motives.
Prosecutors have said they have not yet decided whether to seek the death penalty for Nick Reiner.
Rob Reiner was a prolific director whose work included some of the most memorable and endlessly watchable movies of the 1980s and ’90s. His credits included “This is Spinal Tap,” “Stand By Me,” “A Few Good Men,” and “When Harry Met Sally,” during whose production he met Michele Singer, a photographer, and married her soon after.
A decade ago, Nick Reiner publicly discussed his struggles with addiction and mental health after making a movie with his father, “Being Charlie,” that was very loosely based on their lives.
This story has been corrected to reflect that Nick Reiner is the third of Rob Reiner’s four children, not the youngest.
Judge Theresa R. McGonigle presides over the arraignment for Nick Reiner on murder charges for the deaths of his parents, Rob and Michele Reiner, Wednesday, Jan. 7, 2026, in Los Angeles. (Eric Thayer/Los Angeles Times via AP, Pool)
Alan Jackson, the attorney for Nick Reiner, speaks during Reiner's arraignment on murder charges for the deaths of his parents, Rob and Michele Reiner, Wednesday, Jan. 7, 2026, in Los Angeles. (Eric Thayer/Los Angeles Times via AP, Pool)
Alan Jackson, the attorney for Nick Reiner, arrives in court for Reiner's arraignment on murder charges for the deaths of Rob and Michele Reiner Wednesday, Jan. 7, 2026, in Los Angeles. (AP Photo/Damian Dovarganes)
Alan Jackson, the attorney for Nick Reiner, arrives in court for Reiner's arraignment on murder charges for the deaths of Rob and Michele Reiner Wednesday, Jan. 7, 2026, in Los Angeles. (AP Photo/Damian Dovarganes)
Alan Jackson, the attorney for Nick Reiner, arrives in court for Reiner's arraignment on murder charges for the deaths of Rob and Michele Reiner Wednesday, Jan. 7, 2026, in Los Angeles. (AP Photo/Damian Dovarganes)
