organization · Reporting owner
CFD 2010 GRANDCHILDREN TRUST FBO DESCENDANTS OF MARIANNE E. DOLAN WEBER
Disclosed activity across 4 companies
Sign in to followReported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| AMC Global Media Inc.AMCX · Entity 5454 | Member of 13(d) Group | September 08, 2025 | September 10, 2025 |
| MSGS Spinco, Inc.NONE · Entity 182916 | Member of 13(d) Group | October 09, 2026 | October 09, 2026 |
| Madison Square Garden Entertainment Corp.MSGE · Entity 4110 | Member of 13(d) Group | September 08, 2025 | September 10, 2025 |
| Madison Square Garden Sports Corp.MSGS · Entity 3572 | Member of 13(d) Group | February 20, 2026 | February 24, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
AMC Global Media Inc.
Report date September 08, 2025 · Filed September 10, 2025
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Class B Common StockSEC Table II · derivative / convertible security | Direct | 520,824 |
Reported balance
After 2025-09-08 transaction · row 1
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 1 · 2025-09-08 · Other · Acquired 145,522 · Balance 520,824 F1: AMC Networks Inc. Class B Common Stock ("Class B Common Stock") is convertible at the option of the holder on a share for share basis into AMC Networks Inc. Class A Common Stock ("Class A Common Stock"). F2: On September 8, 2025, the Reporting Person received the shares of Class B Common Stock in partial repayment of a promissory note. For purposes of the repayment, the shares were valued at $7.72 per share, the mean of the high and low trading price for the Class A Common Stock on September 8, 2025. |
Filing footnotes · ownership attribution and instrument terms
F1: AMC Networks Inc. Class B Common Stock ("Class B Common Stock") is convertible at the option of the holder on a share for share basis into AMC Networks Inc. Class A Common Stock ("Class A Common Stock").
F2: On September 8, 2025, the Reporting Person received the shares of Class B Common Stock in partial repayment of a promissory note. For purposes of the repayment, the shares were valued at $7.72 per share, the mean of the high and low trading price for the Class A Common Stock on September 8, 2025.
MSGS Spinco, Inc.
Report date October 09, 2026 · Filed October 09, 2026
Jointly reported with CFD 2010 GRANDCHILDREN TRUST FBO DESCENDANTS OF KATHLEEN M. DOLAN
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common Stock, par value $0.01 per shareSEC Table I · non-derivative | IndirectBy Madison Square Garden Sports Corp. and its subsidiaries | 100 |
Reported balance
Holding disclosure · report date 2026-10-09 · row 1
Holding and transaction disclosures are not merged.
1 source rowRow 1 · Balance 100 F1: The Reporting Persons are members of a "group" with respect to certain securities of Madison Square Garden Sports Corp. ("MSGS") for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). As such, the Reporting Persons may be deemed to beneficially own shares of MSGS Spinco, Inc. ("MSGS Spinco") held directly by MSGS and its subsidiaries. The Reporting Persons disclaim beneficial ownership of the shares of MSGS Spinco held by MSGS and its subsidiaries, except to the extent of any pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Persons are beneficial owners of such securities for purposes of Section 16 of the Exchange Act or for any other purpose. |
Filing footnotes · ownership attribution and instrument terms
F1: The Reporting Persons are members of a "group" with respect to certain securities of Madison Square Garden Sports Corp. ("MSGS") for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). As such, the Reporting Persons may be deemed to beneficially own shares of MSGS Spinco, Inc. ("MSGS Spinco") held directly by MSGS and its subsidiaries. The Reporting Persons disclaim beneficial ownership of the shares of MSGS Spinco held by MSGS and its subsidiaries, except to the extent of any pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Persons are beneficial owners of such securities for purposes of Section 16 of the Exchange Act or for any other purpose.
Madison Square Garden Entertainment Corp.
Report date September 08, 2025 · Filed September 10, 2025
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Class B Common StockSEC Table II · derivative / convertible security | Direct | 56,948 |
Reported balance
After 2025-09-08 transaction · row 1
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 1 · 2025-09-08 · Other · Acquired 56,948 · Balance 56,948 F1: Madison Square Garden Entertainment Corp. Class B Common Stock ("Class B Common Stock") is convertible at the option of the holder on a share for share basis into Madison Square Garden Entertainment Corp. Class A Common Stock ("Class A Common Stock"). F2: On September 8, 2025, the Reporting Person received the shares of Class B Common Stock in partial repayment of a promissory note. For purposes of the repayment, the shares were valued at $41.54 per share, the mean of the high and low trading price for the Class A Common Stock on September 8, 2025. |
Filing footnotes · ownership attribution and instrument terms
F1: Madison Square Garden Entertainment Corp. Class B Common Stock ("Class B Common Stock") is convertible at the option of the holder on a share for share basis into Madison Square Garden Entertainment Corp. Class A Common Stock ("Class A Common Stock").
F2: On September 8, 2025, the Reporting Person received the shares of Class B Common Stock in partial repayment of a promissory note. For purposes of the repayment, the shares were valued at $41.54 per share, the mean of the high and low trading price for the Class A Common Stock on September 8, 2025.
Madison Square Garden Sports Corp.
Report date February 20, 2026 · Filed February 24, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Class B Common StockSEC Table II · derivative / convertible security | Direct | 18,703 |
Reported balance
After 2026-02-20 transaction · row 1
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 1 · 2026-02-20 · Other · Acquired 18,703 · Balance 18,703 F1: Madison Square Garden Sports Corp. Class B Common Stock ("Class B Common Stock") is convertible at the option of the holder on a share for share basis into Madison Square Sports Corp. Class A Common Stock ("Class A Common Stock"). F2: On February 20, 2026, the Reporting Person received the shares of Class B Common Stock in partial repayment of a promissory note. For purposes of the repayment, the shares were valued at $326.83 per share, the mean of the high and low trading price for the Class A Common Stock on February 20, 2026. |
Filing footnotes · ownership attribution and instrument terms
F1: Madison Square Garden Sports Corp. Class B Common Stock ("Class B Common Stock") is convertible at the option of the holder on a share for share basis into Madison Square Sports Corp. Class A Common Stock ("Class A Common Stock").
F2: On February 20, 2026, the Reporting Person received the shares of Class B Common Stock in partial repayment of a promissory note. For purposes of the repayment, the shares were valued at $326.83 per share, the mean of the high and low trading price for the Class A Common Stock on February 20, 2026.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| February 20, 2026 Filed Feb 24, 2026 18:31 UTC | Madison Square Garden Sports Corp. MSGS · Entity 3572 | OtherClass B Common Stock · Derivative | 18,703 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001513359-26-000004 · form4-02242026_110219.xml · derivative · entry 1 CFD 2010 GRANDCHILDREN TRUST FBO DESCENDANTS OF MARIANNE E. DOLAN WEBER · CIK 0001513359 · Member of 13(d) Group 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 18,703 Underlying: Class A Common Stock · 18,703 shares Expires not disclosed F1 · derivative.exercise_price: Madison Square Garden Sports Corp. Class B Common Stock ("Class B Common Stock") is convertible at the option of the holder on a share for share basis into Madison Square Sports Corp. Class A Common Stock ("Class A Common Stock"). F2 · kind: On February 20, 2026, the Reporting Person received the shares of Class B Common Stock in partial repayment of a promissory note. For purposes of the repayment, the shares were valued at $326.83 per share, the mean of the high and low trading price for the Class A Common Stock on February 20, 2026. F2 · price: On February 20, 2026, the Reporting Person received the shares of Class B Common Stock in partial repayment of a promissory note. For purposes of the repayment, the shares were valued at $326.83 per share, the mean of the high and low trading price for the Class A Common Stock on February 20, 2026. F1 · derivative.exercise_date: Madison Square Garden Sports Corp. Class B Common Stock ("Class B Common Stock") is convertible at the option of the holder on a share for share basis into Madison Square Sports Corp. Class A Common Stock ("Class A Common Stock"). F1 · derivative.expiration_date: Madison Square Garden Sports Corp. Class B Common Stock ("Class B Common Stock") is convertible at the option of the holder on a share for share basis into Madison Square Sports Corp. Class A Common Stock ("Class A Common Stock"). Read SEC document |
| September 08, 2025 Filed Sep 10, 2025 21:27 UTC | Madison Square Garden Entertainment Corp. MSGE · Entity 4110 | OtherClass B Common Stock · Derivative | 56,948 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001415889-25-024229 · form4-09112025_010928.xml · derivative · entry 1 CFD 2010 GRANDCHILDREN TRUST FBO DESCENDANTS OF MARIANNE E. DOLAN WEBER · CIK 0001513359 · Member of 13(d) Group 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 56,948 Underlying: Class A Common Stock · 56,948 shares Expires not disclosed F1 · derivative.exercise_price: Madison Square Garden Entertainment Corp. Class B Common Stock ("Class B Common Stock") is convertible at the option of the holder on a share for share basis into Madison Square Garden Entertainment Corp. Class A Common Stock ("Class A Common Stock"). F2 · kind: On September 8, 2025, the Reporting Person received the shares of Class B Common Stock in partial repayment of a promissory note. For purposes of the repayment, the shares were valued at $41.54 per share, the mean of the high and low trading price for the Class A Common Stock on September 8, 2025. F2 · price: On September 8, 2025, the Reporting Person received the shares of Class B Common Stock in partial repayment of a promissory note. For purposes of the repayment, the shares were valued at $41.54 per share, the mean of the high and low trading price for the Class A Common Stock on September 8, 2025. F1 · derivative.exercise_date: Madison Square Garden Entertainment Corp. Class B Common Stock ("Class B Common Stock") is convertible at the option of the holder on a share for share basis into Madison Square Garden Entertainment Corp. Class A Common Stock ("Class A Common Stock"). F1 · derivative.expiration_date: Madison Square Garden Entertainment Corp. Class B Common Stock ("Class B Common Stock") is convertible at the option of the holder on a share for share basis into Madison Square Garden Entertainment Corp. Class A Common Stock ("Class A Common Stock"). Read SEC document |
| September 08, 2025 Filed Sep 10, 2025 21:20 UTC | AMC Global Media Inc. AMCX · Entity 5454 | OtherClass B Common Stock · Derivative | 145,522 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001415889-25-024210 · form4-09112025_010900.xml · derivative · entry 1 CFD 2010 GRANDCHILDREN TRUST FBO DESCENDANTS OF MARIANNE E. DOLAN WEBER · CIK 0001513359 · Member of 13(d) Group 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 520,824 Underlying: Class A Common Stock · 145,522 shares Expires not disclosed F1 · derivative.exercise_price: AMC Networks Inc. Class B Common Stock ("Class B Common Stock") is convertible at the option of the holder on a share for share basis into AMC Networks Inc. Class A Common Stock ("Class A Common Stock"). F2 · kind: On September 8, 2025, the Reporting Person received the shares of Class B Common Stock in partial repayment of a promissory note. For purposes of the repayment, the shares were valued at $7.72 per share, the mean of the high and low trading price for the Class A Common Stock on September 8, 2025. F2 · price: On September 8, 2025, the Reporting Person received the shares of Class B Common Stock in partial repayment of a promissory note. For purposes of the repayment, the shares were valued at $7.72 per share, the mean of the high and low trading price for the Class A Common Stock on September 8, 2025. F1 · derivative.exercise_date: AMC Networks Inc. Class B Common Stock ("Class B Common Stock") is convertible at the option of the holder on a share for share basis into AMC Networks Inc. Class A Common Stock ("Class A Common Stock"). F1 · derivative.expiration_date: AMC Networks Inc. Class B Common Stock ("Class B Common Stock") is convertible at the option of the holder on a share for share basis into AMC Networks Inc. Class A Common Stock ("Class A Common Stock"). Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.