SEC ownership of READING INTERNATIONAL INC

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000716634.

Comparable stake leader

Mark Cuban

Disclosed value leader

Mark Cuban

Comparable rows

0/46

Latest evidence

27 Apr 2026

Top shareholders Insider holders Latest transactions
Public ticker
RDI, RDIB on Nasdaq
Parsed ownership sources
3/4/5 and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
Largest SEC-reported holder
Mark Cuban
Ranking: Comparable ownership first, then disclosed value
Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 1 signal
Latest parsed ownership date
27 Apr 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0000716634
Issuer location
Culver City, CA

Ownership snapshot

Top shareholders of READING INTERNATIONAL 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
Mark Cuban
Disclosed value leader
Mark Cuban
Comparable rows
0/46
Latest evidence
27 Apr 2026
3/4/5 13F Highest disclosed value: $3,507,424 46 rows are not safely comparable across share classes. Showing 1-8 of 46 holder rows.

Quick read

Mark Cuban has the largest disclosed position value at $3.51M.

0 of 46 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 Mark Cuban's linked filing trail.
Disclosed position value Top 5
Mark Cuban $3.51M
James J. Cotter Living Trust $3.4M
Ellen M. Cotter $1.16M
Margaret Cotter $953.8K
Krilogy Financial LLC $2.96M

Value bars compare disclosed positions; verify each figure against the linked filing evidence.

Detailed SEC evidence table Showing 1-8 of 46 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
Mark Cuban
3/4/5
10%+ Owner
3/4/5
—
class O/S missing
$3,507,424
172,355 shares
 — 13 Sep 2023
James J. Cotter Living Trust
3/4/5
Member of Sec.13(d)(3) Group, 10%+ Owner
3/4/5
—
class O/S missing
$3,397,855
1,163,649 shares
 — 09 Jun 2022
Ellen M. Cotter
3/4/5
Director, President and CEO, Director, Member of Sec.13(d)(3) Group, 10%+ Owner
3/4/5
—
mixed-class rows
$1,162,835
2,108,365 shares
mixed-class rows
 — 27 Apr 2026
Margaret Cotter
3/4/5
Chairperson, EVP - RE Dev/NY, Director, Member of Sec.13(d)(3) Group, 10%+ Owner
3/4/5
—
mixed-class rows
$953,839
1,111,959 shares
mixed-class rows
 — 27 Apr 2026
Krilogy Financial LLC
13F
Company
13F
—
class O/S missing
$2,964,300
2,512,119 shares
 — 31 Mar 2026
Nantahala Capital Management, LLC
13F
Company
13F
—
class O/S missing
$2,170,829
1,921,088 shares
 — 31 Mar 2026
WITTENBERG INVESTMENT MANAGEMENT, INC.
13F
Company
13F
—
class O/S missing
$1,114,344
986,145 shares
 — 31 Mar 2026
VANGUARD CAPITAL MANAGEMENT LLC
13F
Company
13F
—
mixed-class rows
$889,720
758,125 shares
mixed-class rows
 — 31 Mar 2026
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 01 Jul 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 1-13 of 13 reporting-owner rows connected to READING INTERNATIONAL INC. Open a relationship link for the CIK-to-CIK filing trail.

Rows
13
Largest Forms 3/4/5 holder
Mark Cuban
Net 12M change
$0
Latest report
27 Apr 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Mark Cuban 10%+ Owner $3,507,424 Filing P/S 13 Sep 2023
James J. Cotter Living Trust Member of Sec.13(d)(3) Group, 10%+ Owner $3,397,855 Mixed 09 Jun 2022
Ellen M. Cotter Director, President and CEO, Director, Member of Sec.13(d)(3) Group, 10%+ Owner $1,162,835 Mixed 27 Apr 2026
Margaret Cotter Chairperson, EVP - RE Dev/NY, Director, Member of Sec.13(d)(3) Group, 10%+ Owner $953,839 Mixed 27 Apr 2026
Sidney Craig Tompkins EVP, General Counsel $209,977 Mixed 27 Apr 2026
Gilbert Avanes EVP, CFO & Treasurer $194,855 Mixed 27 Apr 2026
Andrzej J. Matyczynski EVP - Global Ops $181,730 Mixed 11 Jun 2025
Robert F. Smerling President - U.S. Cinemas $168,215 Mixed 27 Apr 2026
Guy W. Adams Director $108,625 Mixed 04 Dec 2025
Douglas James McEachern Director $94,526 Mixed 04 Dec 2025
Judy Bond Codding Director $87,055 Mixed 04 Dec 2025
Steven John Lucas VP, Controller & CAO $53,703 Mixed 27 Apr 2026
Michael J. Wrotniak Former Director Mixed 08 Dec 2021

Recent insider transactions for READING INTERNATIONAL 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
Ellen M. Cotter RDI Restricted Stock Units Award 269,043 269,043 27 Apr 2026 Direct
Robert F. Smerling RDI Restricted Stock Units Award 42,530 42,530 27 Apr 2026 Direct
Steven John Lucas RDI Restricted Stock Units Award 31,927 31,927 27 Apr 2026 Direct
Gilbert Avanes RDI Restricted Stock Units Award 111,344 111,344 27 Apr 2026 Direct
Margaret Cotter RDI Restricted Stock Units Award 76,638 76,638 27 Apr 2026 Direct
Sidney Craig Tompkins RDI Restricted Stock Units Award 78,905 78,905 27 Apr 2026 Direct
Ellen M. Cotter RDI Class A Non-voting Common Stock Options Exercise 7.04% 70,196 1,066,822 21 Apr 2026 Direct
Ellen M. Cotter RDI Restricted Stock Units Options Exercise -81.8% -70,196 15,576 21 Apr 2026 Direct
Margaret Cotter RDI Class A Non-Voting Common Stock Options Exercise 2.91% 24,704 875,082 21 Apr 2026 Direct
Margaret Cotter RDI Restricted Stock Units Options Exercise -68.4% -24,704 11,390 21 Apr 2026 Direct
Ellen M. Cotter RDI Class A Non-voting Common Stock Options Exercise 1.22% 11,990 996,626 18 Apr 2026 Direct
Ellen M. Cotter RDI Restricted Stock Units Options Exercise -100% -11,990 0 18 Apr 2026 Direct
Margaret Cotter RDI Class A Non-Voting Common Stock Options Exercise 1.04% 8,768 850,378 18 Apr 2026 Direct
Margaret Cotter RDI Restricted Stock Units Options Exercise -100% -8,768 0 18 Apr 2026 Direct
Sidney Craig Tompkins RDI Class A Non-Voting Common Stock Tax liability -2.73% -4,160 148,259 18 Apr 2026 Direct
Sidney Craig Tompkins RDI Class A Non-Voting Common Stock Options Exercise 6.1% 8,768 152,419 18 Apr 2026 Direct
Sidney Craig Tompkins RDI Restricted Stock Units Options Exercise -100% -8,768 0 18 Apr 2026 Direct
Gilbert Avanes RDI Class A Non-Voting Common Stock Options Exercise 6.98% 8,768 134,386 18 Apr 2026 Direct
Gilbert Avanes RDI Restricted Stock Units Options Exercise -100% -8,768 0 18 Apr 2026 Direct
Robert F. Smerling RDI Class A Non-Voting Common Stock Options Exercise 8.67% 8,768 109,945 18 Apr 2026 Direct
Robert F. Smerling RDI Restricted Stock Units Options Exercise -100% -8,768 0 18 Apr 2026 Direct
Steven John Lucas RDI Class A Non-Voting Common Stock Options Exercise 13% 3,685 32,091 18 Apr 2026 Direct
Steven John Lucas RDI Restricted Stock Units Options Exercise -100% -3,685 0 18 Apr 2026 Direct
Steven John Lucas RDI Class A Non-Voting Common Stock Tax liability 49.8% 9,445 28,406 11 Apr 2026 Direct
Steven John Lucas RDI Restricted Stock Units Options Exercise -68.4% -9,445 4,354 11 Apr 2026 Direct
Robert F. Smerling RDI Class A Non-Voting Common Stock Tax liability 31.8% 24,400 101,177 11 Apr 2026 Direct
Robert F. Smerling RDI Restricted Stock Units Options Exercise -68.4% -24,400 11,250 11 Apr 2026 Direct
Gilbert Avanes RDI Class A Non-Voting Common Stock Tax liability 24.1% 24,400 125,618 11 Apr 2026 Direct
Gilbert Avanes RDI Restricted Stock Units Options Exercise 24,400 11,250 11 Apr 2026 Direct
Sidney Craig Tompkins RDI Class A Non-Voting Common Stock Tax liability 20.5% 24,400 143,651 11 Apr 2026 Direct
Sidney Craig Tompkins RDI Restricted Stock Units Options Exercise -68.4% -24,400 11,250 11 Apr 2026 Direct
Margaret Cotter RDI Class A Non-Voting Common Stock Tax liability -1.42% -12,108 841,610 13 Mar 2026 Direct
Sidney Craig Tompkins RDI Class A Non-Voting Common Stock Tax liability -11.8% -15,946 119,251 13 Mar 2026 Direct
Gilbert Avanes RDI Class A Non-Voting Common Stock Tax liability -10.6% -12,058 101,218 13 Mar 2026 Direct
Ellen M. Cotter RDI Class A Non-voting Common Stock Tax liability -2.41% -24,321 984,636 13 Mar 2026 Direct
Robert F. Smerling RDI Class A Non-Voting Common Stock Tax liability -15.2% -13,713 76,777 13 Mar 2026 Direct
Judy Bond Codding RDI Stock Options (Class A Non-Voting Common Stock) Award 102,941 102,941 04 Dec 2025 Direct
Guy W. Adams RDI Stock Options (Class A Non-Voting Common Stock) Award 102,941 102,941 04 Dec 2025 Direct
Douglas James McEachern RDI Stock Options (Class A Non-Voting Common Stock) Award 102,941 102,941 04 Dec 2025 Direct
* marks a reported price that did not pass the local price check.
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