AMCX Institutional Ownership & Shareholders
AMC NETWORKS INC-A (AMCX) is currently held by 178 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $341.65M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of AMCX tracked by InsiderSet, reporting ownership valued at approximately $37.63M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $30.28M, representing an estimated loss of -19.54% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 49% of the total disclosed AMCX value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Allspring Global Investments Holdings, Llc, Castleknight Management Lp, and several other long-term asset managers with concentrated positions in AMC NETWORKS INC-A (AMCX).
This page ranks the largest institutional AMCX shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
178
Total Reported Value
$341.65M
Largest Holder
Blackrock, Inc.
Largest Position
$37.63M
Insider Transactions (90d)
3
Latest Filing Quarter
Q2 2026
New Institutional Positions
45
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 3,770,324 | $37,627,833 | $30,275,702 | -$7,352,131 | -19.54% | |
| Allspring Global Investments Holdings, Llc | 0.03% | 1,791,009 | $18,823,505 | $14,381,802 | -$4,441,703 | -23.60% | |
| Castleknight Management Lp | 0.67% | 1,838,500 | $18,348,230 | $14,763,155 | -$3,585,075 | -19.54% | |
| American Century Companies Inc | 0.01% | 1,685,871 | $16,824,993 | $13,537,544 | -$3,287,449 | -19.54% | |
| Rwwm, Inc. | 1.03% | 1,401,949 | $13,991,451 | $11,257,650 | -$2,733,801 | -19.54% | |
| Vanguard Capital Management Llc | 0.00% | 1,358,621 | $13,559,038 | $10,909,727 | -$2,649,311 | -19.54% | |
| Charles Schwab Investment Management Inc | 0.00% | 1,320,033 | $13,173,929 | $10,599,865 | -$2,574,064 | -19.54% | |
| Dimensional Fund Advisors Lp | 0.00% | 1,267,113 | $12,646,028 | $10,174,917 | -$2,471,111 | -19.54% | |
| Jpmorgan Chase & Co | 0.00% | 1,206,207 | $12,116,350 | $9,685,842 | -$2,430,508 | -20.06% | |
| Geode Capital Management, Llc | 0.00% | 1,149,899 | $11,478,529 | $9,233,689 | -$2,244,840 | -19.56% | |
| Aqr Capital Management Llc | 0.00% | 959,648 | $9,577,288 | $7,705,973 | -$1,871,315 | -19.54% | |
| D. E. Shaw & Co., Inc. | 0.01% | 923,859 | $9,220,113 | $7,418,588 | -$1,801,525 | -19.54% | |
| Acadian Asset Management Llc | 0.01% | 868,997 | $8,668,000 | $6,978,046 | -$1,689,954 | -19.50% | |
| Ubs Group Ag | 0.00% | 838,227 | $8,365,505 | $6,730,963 | -$1,634,542 | -19.54% | |
| Two Sigma Investments, Lp | 0.01% | 827,948 | $8,262,921 | $6,648,422 | -$1,614,499 | -19.54% | |
| Dana Investment Advisors, Inc. | 0.20% | 777,594 | $7,760,388 | $6,244,080 | -$1,516,308 | -19.54% | |
| Marshall Wace, Llp | 0.01% | 773,892 | $7,723,441 | $6,214,353 | -$1,509,088 | -19.54% | |
| State Street Corp | 0.00% | 730,017 | $7,285,570 | $5,862,037 | -$1,423,533 | -19.54% | |
| Bridgeway Capital Management, Llc | 0.11% | 612,450 | $6,112,251 | $4,917,974 | -$1,194,278 | -19.54% | |
| Lsv Asset Management | 0.01% | 578,806 | $5,776,000 | $4,647,812 | -$1,128,188 | -19.53% | |
| Gamco Investors, Inc. Et Al | 0.05% | 549,714 | $5,486,146 | $4,414,203 | -$1,071,943 | -19.54% | |
| Vanguard Portfolio Management Llc | 0.00% | 421,507 | $4,206,640 | $3,384,701 | -$821,939 | -19.54% | |
| Barclays Plc | 0.00% | 397,773 | $3,969,774 | $3,194,117 | -$775,657 | -19.54% | |
| Northern Trust Corp | 0.00% | 357,126 | $3,564,118 | $2,867,722 | -$696,396 | -19.54% | |
| Russell Investments Group, Ltd. | 0.00% | 345,584 | $3,448,928 | $2,775,040 | -$673,888 | -19.54% | |
| Allianz Asset Management Gmbh | 0.00% | 330,537 | $3,298,759 | $2,654,212 | -$644,547 | -19.54% | |
| Morgan Stanley | 0.00% | 304,180 | $3,035,718 | $2,442,565 | -$593,153 | -19.54% | |
| Citadel Advisors Llc | 0.00% | 303,684 | $3,030,766 | $2,438,583 | -$592,183 | -19.54% | |
| Prudential Financial Inc | 0.00% | 301,007 | $3,004,050 | $2,417,086 | -$586,964 | -19.54% | |
| Goldman Sachs Group Inc | 0.00% | 278,137 | $2,775,808 | $2,233,440 | -$542,368 | -19.54% | |
| Jane Street Group, Llc | 0.00% | 268,806 | $2,682,684 | $2,158,512 | -$524,172 | -19.54% | |
| Quinn Opportunity Partners Llc | 0.11% | 244,721 | $2,442,316 | $1,965,110 | -$477,206 | -19.54% | |
| Nuveen, Llc | 0.00% | 237,979 | $2,375,031 | $1,910,971 | -$464,060 | -19.54% | |
| Envestnet Asset Management Inc | 0.00% | 228,738 | $2,282,807 | $1,836,766 | -$446,041 | -19.54% | |
| O'Shaughnessy Asset Management, Llc | 0.01% | 222,020 | $2,215,760 | $1,782,821 | -$432,939 | -19.54% | |
| Denali Advisors Llc | 0.22% | 219,400 | $2,189,612 | $1,761,782 | -$427,830 | -19.54% | |
| Vanguard Fiduciary Trust Co | 0.00% | 214,398 | $2,139,692 | $1,721,616 | -$418,076 | -19.54% | |
| Empowered Funds, Llc | 0.01% | 195,817 | $1,954,254 | $1,572,411 | -$381,843 | -19.54% | |
| Plustick Management Llc | 0.72% | 170,000 | $1,696,600 | $1,365,100 | -$331,500 | -19.54% | |
| Segall Bryant & Hamill, Llc | 0.02% | 156,067 | $1,557,549 | $1,253,218 | -$304,331 | -19.54% | |
| Ritholtz Wealth Management | 0.02% | 149,732 | $1,494,325 | $1,202,348 | -$291,977 | -19.54% | |
| Bank Of New York Mellon Corp | 0.00% | 145,082 | $1,447,915 | $1,165,008 | -$282,907 | -19.54% | |
| Martingale Asset Management L P | 0.03% | 137,643 | $1,373,678 | $1,105,273 | -$268,405 | -19.54% | |
| Gabelli Funds Llc | 0.01% | 127,500 | $1,272,450 | $1,023,825 | -$248,625 | -19.54% | |
| Squarepoint Ops Llc | 0.00% | 114,311 | $1,140,824 | $917,917 | -$222,907 | -19.54% | |
| Raymond James Financial Inc | 0.00% | 112,644 | $1,124,187 | $904,531 | -$219,656 | -19.54% | |
| Summerhaven Investment Management, Llc | 0.60% | 92,190 | $1,074,935 | $740,286 | -$334,649 | -31.13% | |
| Quantinno Capital Management Lp | 0.00% | 106,386 | $1,061,732 | $854,280 | -$207,452 | -19.54% | |
| Citigroup Inc | 0.00% | 93,990 | $938,020 | $754,740 | -$183,280 | -19.54% | |
| New York State Common Retirement Fund | 0.00% | 93,461 | $932,741 | $750,492 | -$182,249 | -19.54% |
Frequently asked questions about AMCX
Who are the largest institutional holders of AMCX?
The largest institutional holders of AMCX reported in the latest SEC Form 13F filings include Blackrock, Inc., Allspring Global Investments Holdings, Llc, Castleknight Management Lp, American Century Companies Inc, and Rwwm, Inc.. InsiderSet ranks institutional holders by their latest reported AMCX position.
What is AMCX institutional ownership?
This page tracks AMCX positions reported by institutional investment managers through SEC Form 13F. AMC NETWORKS INC-A (AMCX) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own AMCX?
InsiderSet currently tracks 178 institutional managers reporting AMCX holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of AMCX shareholders.
How much AMCX stock do institutions own?
Institutional investment managers disclosed approximately $341.65M in AMCX holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was AMCX institutional ownership last updated?
The latest AMCX institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional AMCX holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its AMCX position after the reporting date.
Are institutions buying or selling AMCX?
Institutional buying and selling can be analyzed by comparing AMCX positions across consecutive 13F reporting periods. InsiderSet's AMCX Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View AMCX ownership changes.
How has AMCX institutional ownership changed over time?
InsiderSet tracks AMCX institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.