SEC ownership of RMR GROUP INC.

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001644378.

Comparable stake leader

VANGUARD GROUP INC

Disclosed value leader

BlackRock, Inc.

Comparable rows

50/50

Latest evidence

17 Sep 2026

Top shareholders Insider holders Latest transactions
Public ticker
RMR on Nasdaq
Parsed ownership sources
13D/G, 13F, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
Largest SEC-reported holder
VANGUARD GROUP INC
Ranking: Comparable ownership first, then disclosed value
Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
50 of 50
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
VANGUARD GROUP INC
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
17 Sep 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0001644378
Issuer location
Newton, MA

Ownership snapshot

Top shareholders of RMR GROUP INC. (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
VANGUARD GROUP INC
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
17 Sep 2026
13D/G 13F 3/4/5 Lead comparable stake: 10% 13D/G row: VANGUARD GROUP INC Showing 1-8 of 50 holder rows.

Quick read

VANGUARD GROUP INC leads the comparable SEC ownership view at 10%.

50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens VANGUARD GROUP INC's linked filing trail.
Comparable ownership Top 5
VANGUARD GROUP INC 10%
BlackRock, Inc. 7.3%
Nantahala Capital Management, LLC 7.2%
BANK OF AMERICA CORP /DE/ 5.9%
Flat Footed LLC 5.2%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 50 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
VANGUARD GROUP INC
13D/G
The Vanguard Group
13D/G
10%
$26,318,772
1,609,701 shares
 -$5,113,510 30 Jun 2025
BlackRock, Inc.
13F 13D/G
Company
13F 13D/G
7.3%
from 13D/G
$30,452,684
1,483,326 shares
 — 30 Jun 2026
Nantahala Capital Management, LLC
13F 13D/G
Company
13F 13D/G
7.2%
from 13D/G
$23,566,428
1,147,902 shares
 — 30 Jun 2026
BANK OF AMERICA CORP /DE/
13F 13D/G
Company
13F 13D/G
5.9%
from 13D/G
$17,649,128
859,675 shares
 — 30 Jun 2026
Flat Footed LLC
13F 13D/G
Company · FF Hybrid, LP
13F 13D/G
5.2%
from 13D/G
$17,686,739
861,507 shares
 — 30 Jun 2026
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC
13D/G 13F
Hotchkis and Wiley Capital Management, LLC · Company
13D/G 13F
4.3%
$9,997,783
676,440 shares
 $0 31 Mar 2025
Adam D. Portnoy
3/4/5
Managing Dir., President & CEO, Director
3/4/5
1.7%
$5,607,275
273,126 shares
 — 17 Sep 2026
Jennifer B. Clark
3/4/5
MD, Exec. VP, GC & Secty, Director
3/4/5
0.48%
$1,339,079
77,493 shares
 — 16 Sep 2025
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 22 Sep 2025.

Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 0
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 0 $0 $0 $0
3-6 0 0 $0 $0 $0
6-9 0 0 $0 $0 $0
9-12 0 0 $0 $0 $0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-15 of 15 reporting-owner rows connected to RMR GROUP INC.. Open a relationship link for the CIK-to-CIK filing trail.

Rows
15
Largest Forms 3/4/5 holder
Adam D. Portnoy
Net 12M change
$0
Latest report
17 Sep 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Adam D. Portnoy Managing Dir., President & CEO, Director $5,607,275 Median 17 Sep 2026
Matthew P. Jordan Managing Dir., Exec. VP, COO, Director $1,560,074 Median 17 Sep 2026
Jennifer B. Clark MD, Exec. VP, GC & Secty, Director $1,339,079 Mixed 16 Sep 2025
John G. Murray Exec. VP of The RMR Group LLC $685,532 Mixed 16 Sep 2025
Ann Logan Director $599,143 Mixed 26 Mar 2026
Walter C. Watkins Jr. Director $560,731 Mixed 26 Mar 2026
Christopher J. Bilotto Exec. VP $533,759 Median 17 Sep 2026
Jeffrey C. Leer Exec. VP of The RMR Group LLC $494,218 Median 17 Sep 2026
Jennifer F. Francis Exec. VP of The RMR Group LLC $485,156 Mixed 18 Sep 2023
Rosen Plevneliev Director $457,608 Mixed 26 Mar 2026
Jonathan Veitch Director $426,631 Mixed 26 Mar 2026
Matthew C. Brown Exec. VP, CFO & Treasurer $401,956 Median 17 Sep 2026
Jonathan Pertchik Exec. VP of The RMR Group LLC $368,927 Mixed 19 Sep 2022
Yael Duffy Exec. VP $362,416 Median 17 Sep 2026
Lindsey Getz Exec. VP, GC & Secty $279,536 Median 17 Sep 2026

Recent insider transactions for RMR GROUP INC.

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
Yael Duffy :RMR Class A Common Stock Tax liability -13.8% -2,823 17,653 17 Sep 2026 Direct
Jeffrey C. Leer :RMR Class A Common Stock Tax liability -9.93% -2,654 24,073 17 Sep 2026 Direct
Christopher J. Bilotto :RMR Class A Common Stock Tax liability -11.9% -3,526 25,999 17 Sep 2026 Direct
Lindsey Getz :RMR Class A Common Stock Tax liability -16.2% -2,639 13,616 17 Sep 2026 Direct
Matthew C. Brown :RMR Class A Common Stock Tax liability -7.9% -1,679 19,579 17 Sep 2026 Direct
Matthew P. Jordan :RMR Class A Common Stock Tax liability -8.06% -6,664 75,990 17 Sep 2026 Direct
Adam D. Portnoy :RMR Class A Common Stock Tax liability -5.26% -10,140 182,562 17 Sep 2026 Direct
Jeffrey C. Leer :RMR Class A Common Stock Award 41.7% 7,869 26,727 10 Sep 2026 Direct
Matthew C. Brown :RMR Class A Common Stock Award 58.8% 7,869 21,258 10 Sep 2026 Direct
Yael Duffy :RMR Class A Common Stock Award 62.4% 7,869 20,476 10 Sep 2026 Direct
Lindsey Getz :RMR Class A Common Stock Award 93.8% 7,869 16,255 10 Sep 2026 Direct
Christopher J. Bilotto :RMR Class A Common Stock Award 55.1% 10,493 29,525 10 Sep 2026 Direct
Adam D. Portnoy :RMR Class A Common Stock Award 19.5% 31,479 192,702 10 Sep 2026 Direct
Matthew P. Jordan :RMR Class A Common Stock Award 23.5% 15,739 82,654 10 Sep 2026 Direct
Ann Logan :RMR Class A Common Stock Award 19% 6,426 40,211 26 Mar 2026 Direct
Matthew P. Jordan :RMR Class A Common Stock Award 10.6% 6,426 66,915 26 Mar 2026 Direct
Walter C. Watkins Jr. :RMR Class A Common Stock Award 20.6% 6,426 37,633 26 Mar 2026 Direct
Jonathan Veitch :RMR Class A Common Stock Award 28.9% 6,426 28,633 26 Mar 2026 Direct
Adam D. Portnoy :RMR Class A Common Stock Award 4.15% 6,426 161,223 26 Mar 2026 Direct
Rosen Plevneliev :RMR Class A Common Stock Tax liability -3.04% -964 30,712 26 Mar 2026 Direct
Rosen Plevneliev :RMR Class A Common Stock Award 25.4% 6,426 31,676 26 Mar 2026 Direct
* marks a reported price that did not pass the local price check.
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