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RICHARD W. SIEDEL JR.

CIK 1661082 · SVP & Chief Accounting Officer · last filed 2026-06-03

RICHARD W. SIEDEL JR. is a SVP & Chief Accounting Officer who has filed 25 SEC Form 4 insider transactions across 5 companies since 2016. The most recent filing shows the insider had shares withheld for taxes covering $18.4K of ST on Jun 3, 2026. Current disclosed insider exposure totals $2.5M across reported positions. 13 SEC filings were submitted jointly with SENIOR HOUSING PROPERTIES TRUST.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$2.54M

Companies

5

Total Filings

25

Lifetime Open-Market Net

$0

Filer Profile

Reported Address
C/O THE RMR GROUP LLC
TWO NEWTON PL., 255 WASH. ST., STE. 300
NEWTON, MA 02458
Formerly Known As
Siedel Richard W JR (2016–2016)
Related Filers
SENIOR HOUSING PROPERTIES TRUST — 13 joint filings, latest 2023-09-20
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
ST SVP & Chief Accounting Officer 16,635 $43.64 $726.0K $0 4 2026-06-03
DHCNL CFO and Treasurer 88,791 $18.72 $1.66M $0 7 2023-09-20
ILPT CFO and Treasurer 19,472 $7.76 $151.1K $0 9 2022-09-21
DIVERSIFIED HEALTHCARE TRUST (SNHNL) Delisted CFO and Treasurer 22,902 — — $0 4 2019-09-27
DIVERSIFIED HEALTHCARE TRUST (SNHN.L) Delisted CFO AND TREASURER 3,000 — — $0 1 2016-09-19

Recent Filings

25 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-06-03 ST Tax (F) −374 -$18.4K EDGAR
2026-04-03 ST Mixed +6,327 -$24.9K EDGAR
2025-06-02 ST Tax (F) −374 -$9.7K EDGAR
2025-04-03 ST Grant (A) +7,244 $0 EDGAR
2023-09-20 DHCNL Tax (F) −7,086 -$16.5K EDGAR
2022-09-21 ILPT Tax (F) −1,492 -$11.0K EDGAR
2022-09-21 DHCNL Tax (F) −7,429 -$9.7K EDGAR
2022-09-16 ILPT Grant (A) +3,500 $0 EDGAR
2022-09-16 DHCNL Grant (A) +40,000 $0 EDGAR
2021-09-22 DHCNL Tax (F) −6,205 -$21.0K EDGAR
Showing 1–10 of 25
Page 1 of 3
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.