# Senator Investment Group

Senator Investment Group is an Asset Manager based in New York, United States.

## Overview

- **Organization type:** Asset Manager
- **Headquarters:** New York, United States
- **Region:** North America
- **Address:** New York, NY, United States
- **Founded:** 2008
- **Assets under management:** Undisclosed
- **Website:** senatorlp.com
- **LinkedIn:** https://www.linkedin.com/company/senator-investment-group-lp

## Regulatory record

- **CRD number:** 160935
- **SEC file number:** 801-73289
- **Registration status:** APPROVED
- **Latest Form ADV filing:** 2026-03-26T05:00:00.000Z
- **Reports private funds:** Yes
- **Private funds reported:** 0
- **IAPD record:** https://adviserinfo.sec.gov/firm/summary/160935

## About

Senator Investment Group is an SEC-registered investment adviser in NEW YORK, NY, registered since 2012. The firm manages approximately $4.9 billion in regulatory assets. It has 26 employees and 12 investment advisers.

## People

- Douglas Silverman — Co-Founder & Managing Partner
- Alexander Klabin — Co-Founder & Managing Partner

## Questions

### Who runs investment decisions at Senator Investment Group?

Douglas Silverman, who co-founded the firm alongside Alexander Klabin in 2008, leads investment strategy as Managing Partner. Klabin stepped back from his co-chief investment officer role in 2023 but remains a senior advisor and partner. Silverman previously managed a portfolio at S.A.C. Capital Advisors, and Klabin worked as an analyst at both S.A.C. and Highbridge Capital prior to launching Senator.

### How does Senator Investment Group source most of its deal flow?

Senator relies on a combination of deep sell-side relationships, restructuring advisory networks, and its internal research platform to source investments. The firm's willingness to write complex structured instruments — such as convertible preferred equity facilities — often places it in negotiated, bilateral deal settings rather than competitive auctions. Its reputation as a crisis-era lender gives management teams and sponsors a reason to call when conventional bank financing is difficult to secure.

### Is Senator a hedge fund, a private credit shop, or a hybrid?

Senator operates as a hybrid, investing across public equities, private credit, and structured capital solutions. The firm does not fit neatly into a single bucket: it runs a concentrated multi-strategy public-markets book alongside direct lending and bespoke private investments, often holding positions for multiple years. This structure more closely resembles a permanent-capital merchant bank than a traditional Tiger Cub or multi-manager hedge fund platform.

### What types of capital structures does Senator invest in?

The firm invests across the capital structure: common equity, preferred equity, convertible bonds, mezzanine debt, senior secured loans, and debtor-in-possession facilities. Its 2019 investment in Diebold Nixdorf took the form of a $200 million convertible preferred facility, a structure that gave Senator downside protection through the preferred coupon while retaining equity upside through the conversion feature.

### What is Senator's track record on distressed and restructuring investments?

Senator has been an active participant in corporate restructurings, providing rescue financing and debtor-in-possession facilities to companies in chapter 11 proceedings. The firm was one of the lenders involved in Valaris' restructuring, a major offshore drilling contractor that emerged from bankruptcy in 2021. Senator's credit underwriting often targets asset-heavy or cash-flow-generative businesses undergoing temporary dislocation rather than secularly impaired industries.

### How did Alexander Klabin's role change in 2023 affect the firm's governance?

Alexander Klabin stepped back from day-to-day investment oversight in 2023, shifting to a senior advisory role while retaining his partnership interest. The move consolidated investment decision-making under Douglas Silverman's leadership. Senator has not publicly disclosed succession plans beyond this transition, and the firm has historically maintained a closely held partnership structure without external stakeholders.

## Related profiles

- [Senatla Capital](https://altss.com/profile/senatla-capital)
- [SENCO Hydrogen Capital](https://altss.com/profile/senco-hydrogen-capital)

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Last updated: 2026-06-03T20:00:00.000Z

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