Company Executives

$SPRO Management Team

Mr. Frank Thomas

Independent Chairman of the Board

Age 55

Compensation $88.40K USD

Sex Male

Ms. Esther Rajavelu

President

Chief Executive Officer

Chief Financial Officer

Treasurer and Chief Business Officer

Age 46

Compensation $856.5K USD

Sex Female

Mr. Timothy Keutzer

Chief Operating Officer

Age 57

Compensation $1.033M USD

Sex Male

Name / Title	Age	Compensation	Sex
Mr. Frank Thomas Independent Chairman of the Board	55	$88.40K USD	Male
Ms. Esther Rajavelu President Chief Executive Officer Chief Financial Officer Treasurer and Chief Business Officer	46	$856.5K USD	Female
Mr. Timothy Keutzer Chief Operating Officer	57	$1.033M USD	Male

Board of Directors

From the proxy statement filed Apr 27, 2026

Directors

serving now

Independent

6 of 8

stated in the proxy

Average tenure

7.4 years

from year joined

CEO also chairs the board

Frank E. Thomas

Director	Age	On board	Independent	Committees	Other public boards	2025 pay
Milind Deshpande	69	2014 12 years	Independent	None stated	None stated	Not stated
Scott Jackson	61	2020 6 years	Independent	None stated	MacroGenics, Inc.	$115,300
John C. Pottage, Jr.	73	2018 8 years	Not independent	None stated	None stated	$332,800
Esther Rajavelu CEO, Executive officer	47	2025 1 year	Not independent	None stated	None stated	Paid as CEO
Cynthia Smith	57	2019 7 years	Independent	None stated	Agios Pharmaceuticals, Inc., Akebia Therapeutics, Inc., Protara Therapeutics, Inc., Tvardi Therapeutics, Inc.	$117,800
Frank E. Thomas Board chair	56	2017 9 years	Independent	None stated	Larimar Therapeutics Inc.	$187,800
Kathleen Tregoning	55	2021 5 years	Independent	None stated	None stated	$107,800
Patrick Vink	62	2015 11 years	Independent	None stated	None stated	$141,550

Each director opens the passage of the proxy that names them. "Not stated" means the proxy does not say; it never means "no". Pay is the proxy's Director Compensation table; the CEO is paid as an executive.

No related-party transactions disclosed

The proxy filed Apr 27, 2026 describes a review policy but reports no transactions.

Read the policy in the proxy

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