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AMCX — blockholders· AMC Global Media Inc.

Everyone who has reported crossing 5% of this issuer inside the capture window — Schedule 13D (active intent, with its Item-4 purpose) and Schedule 13G (passive by rule) kept apart — each with its full amendment chain and, in the fold, the cover page's sole and shared voting and dispositive power per reporting person. Percents are each group's own as-filed figures and do not add up across filers: two filers can report the same shares.

Positions
13
showing the largest 10
13D · 13G
3 · 21
active · passive filings
Escalations
0
13G → 13D · lower bound
Newest filing
2026-08-14
capture 2024-01-10 → 2026-08-21
Showing the 10 largest of 13 reported positions — a free account opens all 13. Create a free account →See it live on AAPL →
Active — Schedule 13D · 2 positions

The filer says it may seek to influence or change control, and states why in Item 4. Open the fold for each reporting person's voting and dispositive power.

FilerForm% of classChangeSharesFiledChainControlFiling
James L. Dolan13D/A No. 1617.8%▲ +1.1pp6,893,7212025-09-112SEC ↗
Charles F. Dolan13D/A No. 1416.7%first captured6,529,6322025-01-011SEC ↗
Passive — Schedule 13G · 8 positions

Filed passively under Rule 13d-1(b) (qualified institution), (c) (passive investor) or (d) (exempt). A 13G filer is not an activist and files no purpose statement.

FilerForm% of classChangeSharesFiledChainControlFiling
BlackRock, Inc.13G/A No. 5QII7.8%▼ -2.3pp2,553,1742025-04-172SEC ↗
Barclays PLC13G/A No. 4QII5.84%▼ -1.08pp1,905,3142025-05-135SEC ↗
Allspring Global Investments Holdings, LLC13GQII5.5%NEW1,791,0092026-07-311SEC ↗
CastleKnight Master Fund LP13GPassive5.4%NEW1,762,1002026-05-271SEC ↗
American Century Investment Management, Inc.13GQII5.2%NEW1,685,8712026-08-141SEC ↗
Dimensional Fund Advisors LP13G/A No. 1QII5%first captured1,616,4032025-04-151SEC ↗
RWWM, Inc.13G/A No. 3QII4.76%▼ -0.6pp1,526,1002026-02-024SEC ↗
CHARLES SCHWAB INVESTMENT MANAGEMENT INC13G/A No. 1QII4.56%▼ -2.44pp02026-05-142SEC ↗
Source: SEC EDGAR Schedule 13D/G structured XML (public domain) · newest filing 2026-08-14 · capture 2024-01-10 → 2026-08-21 reported positions only — not a portfolio

Voting is not disposition. Each reporting person's cover page splits its holding into VOTING power (sole / shared) and DISPOSITIVE power (sole / shared). Voting and dispositive totals are summed WITHIN a person only — never across persons, because a group's members report overlapping interests in the same shares and the filing's aggregate is not their sum. Where a person's voting total is below its reported aggregate, the difference is shares it reports beneficial ownership of with no voting power reported; it is shown as a gap, never as a second position.

Percent is as filed. Percent is the filing's own percent of class, as filed (0–100). It's the reporting group's figure — not summed across filers, not recomputed against shares outstanding, not rescaled. Share counts are as filed and never subtracted across filings (a split would make that meaningless); the only change we show is the change in the as-filed percent against the prior captured filing.

We never call an amendment “new”. A filing is 'first captured' when we hold nothing earlier for that company + filer. On an amendment that means the original predates our window, not that the position is new — so we never badge an amendment 'new,' even when the raw data says so.

Escalations. An escalation is a filer moving from a passive 13G to an active 13D on the same company — telling the SEC it may now seek to influence control. It's a lower bound: a 13G filed before our window began is invisible and never guessed. If the 13D leg is a 13D/A, an earlier 13D predates our window, so the crossing shown is the first one visible inside it, not necessarily the filer's first.

Parsed Schedule 13D/G XML (events.db schedule_13dg + schedule_13dg_persons). 13D = active intent; 13G filers report passively under Rule 13d-1(b) QII / (c) Passive / (d) Exempt and are never activists. Percents are the reporting group's own as-filed figures and are NOT additive across filers — two filers can report the same shares. Structured 13D/13G coverage starts December 2024 (SEC XML mandate).