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Compensation 990 is an independent service that uses public IRS Form 990 filings as its source data. We clean and standardize this information, but the original filings may contain errors or omissions. Years on this site refer to the organization’s fiscal year end date on the filing.

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Employees Longwood Medical Energy Collaborative Inc Walter Armstrong

Walter Armstrong

Former

Former Co-Chair/Dir. (Ret. Feb 22) at Longwood Medical Energy Collaborative Inc

Fiscal year ended September 30, 2023. Published on January 25, 2026.

$231,977
2023

Total compensation

Walter Armstrong has been listed as an employee of Longwood Medical Energy Collaborative Inc in Form 990 filings since at least fiscal year 2016. Total compensation for Walter Armstrong has decreased by 50.5% from 2016 to 2023.

Annual compensation details

$231,977
-52.5%
Former Co-Chair/Dir. (Ret. Feb 22)
2023
$231k related
60 hrs/wk
$2k other
--
$488,775
+10%
Former Co-Chair
2022
$460k related
60 hrs/wk
$29k other
--

Total compensation by year

Compare the compensation of Walter Armstrong to:

2023

Other employees at Longwood Medical Energy Collaborative Inc

Michele Garvin
Director and Clerk
$1,743,872
$0 from org$1,698,464 from related$45,408 other
Lisa Hogarty
Co-Chair and Treasurer/Director
$818,446
$0 from org$769,371 from related$49,075 other
Steve Maiorisi
Director
$459,435
$0 from org$393,061 from related$66,374 other
Wendy Gettleman
Co-Chair and Director
$455,549
$0 from org$374,794 from related$80,755 other
Bernard Jones
Director
$439,708
$0 from org$383,615 from related$56,093 other
George Player
Alternate Director
$429,352
$0 from org$362,920 from related$66,432 other
Douglas C Garron
Director
$382,430
$0 from org$314,551 from related$67,879 other
Sonal Gandhi
Director
$376,607
$0 from org$351,227 from related$25,380 other
Gretchen E May
President and Executive Director
$357,232
$0 from org$318,620 from related$38,612 other
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Revisions to this profile

January 25, 2026:
2023 Longwood Medical Energy Collaborative Inc 990 published
January 25, 2026:
2022 Longwood Medical Energy Collaborative Inc 990 published
January 25, 2026:
2021 Longwood Medical Energy Collaborative Inc 990 published

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$444,345
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2021
$418k related
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$28k other
--
$434,957
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Co-Chair
2020
$389k related
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$47k other
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$472,431
+4.3%
Co-Chair
2019
$433k related
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$41k other
--
$453,018
+10.9%
Co-Chair
2018
$406k related
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$48k other
--
$408,538
-12.8%
Co-Chair
2017
$362k related
60 hrs/wk
$48k other
--
$468,325
Co-Chair
2016
$421k related
60 hrs/wk
$48k other
--

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