Starz Entertainment Corp. - Common Shares, no par value per share (STRZ)

Q: What does CUSIP 855919106 represent in this 13F holders report?

CUSIP 855919106 is the security identifier for STRZ - Starz Entertainment Corp. - Common Shares, no par value per share used to aggregate holder disclosures.

Q: How many institutions held STRZ - Starz Entertainment Corp. - Common Shares, no par value per share in Q3 2026?

21 institutional investors reported STRZ - Starz Entertainment Corp. - Common Shares, no par value per share for Q3 2026. Use the holders table for investor-level position and value details.

CUSIP: 855919106

Q3 2026 13F Holders as of 30 Sep 2026

Security type / class: Equity / Common Shares, no par value per share
Total 13F shares: 98,694
Total 13F value: $2,326,287
Share change: +67,480
SEC-reported price per share: $23.57
Number of holders: 21
Value change: +$1,588,424
Number of buys: 11
Number of sells: 3
Shares outstanding: 16,867,299

Security key

855919106

Report period

Q3 2026

Institutions

Top holders

STRZ full security history Ownership snapshot Full 13F holder table STARZ ENTERTAINMENT CORP /CN/ SEC filings STARZ ENTERTAINMENT CORP /CN/ company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 855919106

Recent filing periods:

Q3 2026

Ownership snapshot

Top reported holders of STRZ - Starz Entertainment Corp. - Common Shares, no par value per share (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 H. Rachesky MD

Disclosed value leader

Mark H. Rachesky MD

Comparable rows

6/15

Latest evidence

10 Aug 2026

13D/G 3/4/5 13F Lead comparable stake: 24% 9 rows are not safely comparable across share classes. 13D/G row: Mark H. Rachesky MD Showing 1-6 of 15 holder rows.

Quick read

Mark H. Rachesky MD leads the comparable SEC ownership view at 24%.

6 of 15 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 H. Rachesky MD's linked filing trail.

Comparable ownership Top 5

Mark H. Rachesky MD 24%

MHR FUND MANAGEMENT LLC 17%

CastleKnight Master Fund LP 6.7%

BlackRock, Inc. 5.3%

VANGUARD GROUP INC 4.4%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Mark H. Rachesky MD	13D/G 3/4/5 MARK H. RACHESKY, M.D. · Director, 10%+ Owner 13D/G 3/4/5	24% Reported 13D/G · 27 Jan 2025	$170,365,691 20,233,455 shares	$0	27 Jan 2025
MHR FUND MANAGEMENT LLC	13F 13D/G Company · MARK H. RACHESKY, M.D. 13F 13D/G	17% Reported 13D/G · 02 Jun 2025	$82,632,875 2,863,232 shares	—	30 Jun 2026
CastleKnight Master Fund LP	13D/G 13D/G	6.7% Reported 13D/G · 10 Apr 2026	$12,998,062 1,130,109 shares	$0	10 Apr 2026
BlackRock, Inc.	13D/G 13F Company 13D/G 13F	5.3% Reported 13D/G · 31 Mar 2025	$37,678,582 4,474,891 shares	$0	31 Mar 2025
VANGUARD GROUP INC	13D/G The Vanguard Group 13D/G	4.4% Reported 13D/G · 30 Jun 2025	$11,722,531 729,435 shares	$0	30 Jun 2025
Liberty Global Ltd.	3/4/5 13D/G 10%+ Owner 3/4/5 13D/G	2.8% Reported 13D/G · 06 May 2025	— 469,065 shares	—	06 May 2025

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.

13F holder rows

Institutional holders as of Q3 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

98,694

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q3 2026 vs Q2 2026 Across Filers

Q2 2026 holders

145

Q3 2026 holders

Holder diff

-124

Investor	Q2 2026 Shares	Q3 2026 Shares	Share Diff	Share Chg %	Q2 2026 value	Q3 2026 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend