# David Grain

> David J. Grain is the Sarasota-based founder and CEO of Grain Management, a global investment firm specializing in digital infrastructure. His career spans Morgan Stanley, AT&T Broadband and the Pinnacle Towers / Global Signal turnaround. He also serves on corporate and educational boards and co-founded the Grain Fellows college-preparation program.

- **Role:** Founder and Chief Executive Officer at Grain Management, LLC
- **Organizations:** Grain Management, LLC, Dell Technologies, Southern Company, New Fortress Energy, Dartmouth College, Martha’s Vineyard Museum, National Museum of African American History and Culture, Brookings Institution, Council on Foreign Relations, American Academy of Arts and Sciences
- **From:** Brooklyn, New York, United States
- **Nationality:** American
- **Education:** B.A. in English, College of the Holy Cross, M.B.A., Tuck School of Business at Dartmouth College
- **Known for:** Led Pinnacle / Global Signal from bankruptcy to an IPO., During his presidency, the communications-site portfolio expanded from approximately 2,000 to over 11,000., Founded a digital infrastructure investment firm whose 2025 annual report highlighted $12 billion in AUM.

## Career timeline

- **1989** — Graduated from Tuck and joined Drexel Burnham Lambert after a summer-associate placement.
- **1990s** — Worked at Morgan Stanley, including high-yield finance focused on technology, media and telecommunications.
- **2000** — Joined AT&T Broadband as senior vice president for New England.
- **2002** — Became president of Pinnacle Towers, later renamed Global Signal; led its turnaround and IPO.
- **2004** — David and Lisa Butler Grain established the Grain Fellows program.
- **2007** — Founded Grain Management.
- **2011** — Appointed to the National Infrastructure Advisory Council.
- **2021** — Joined Dell Technologies’ board in September.
- **2022** — Elected to the American Academy of Arts and Sciences.
- **2024** — Elected a Dartmouth trustee, became Martha’s Vineyard Museum board chair and received another National Infrastructure Advisory Council appointment.
- **2025** — Received Tuck’s Distinguished Achievement Medal.
- **2026** — Grain reported $12 billion AUM and announced a definitive agreement to sell its nationwide 800 MHz spectrum portfolio to SpaceX.

## Achievements

- Led Pinnacle / Global Signal from bankruptcy to an IPO.
- During his presidency, the communications-site portfolio expanded from approximately 2,000 to over 11,000.
- Founded a digital infrastructure investment firm whose 2025 annual report highlighted $12 billion in AUM.
- Elected to the American Academy of Arts and Sciences in 2022.
- Received Tuck’s Distinguished Achievement Medal on June 7, 2025.

## Latest updates

- **2026-10** — On October 8, Grain Management announced an agreement to sell its nationwide 800 MHz spectrum portfolio to SpaceX, subject to FCC approval and customary closing conditions.
- **2026-08** — Grain’s October announcement reports completion of its T-Mobile nationwide 800 MHz spectrum acquisition in August 2026.
- **2026-04** — The 2025 annual report release highlighted $12 billion in assets under management.
- **2025-06** — Tuck awarded Grain its Distinguished Achievement Medal.

## Links

- Website: https://graingp.com
- LinkedIn: https://www.linkedin.com/in/david-j-grain-a940a437
- Twitter/X: https://twitter.com/grainmanagement
- Facebook: http://www.facebook.com/pages/Grain-Management-LLC/1259209442540

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Profile page: https://yespress.io/david-grain
Published by YesPress — https://yespress.io
Last updated: 2026-10-10