Mark H. Rachesky MD - 08 Jul 2026 Form 4 Insider Report for Lionsgate Studios Corp. (LION)

Source evidence Original filing metadata and source links for verification. 5 source fields
SEC form
4
Accepted by SEC
10 Jul 2026, 20:00:03 UTC
Prior SEC filing
25 Jun 2026
Next SEC filing
30 Jul 2026
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
/s/ Janet Yeung as attorney in fact

Key filing fact

Mark H. Rachesky MD filed Form 4 for Lionsgate Studios Corp. (LION) on 10 Jul 2026.

Key facts

  • This page summarizes Mark H. Rachesky MD's Form 4 filing for Lionsgate Studios Corp. (LION).
  • 12 reported transactions and 0 derivative rows are listed below.
  • Accepted by SEC: 10 Jul 2026, 20:00.

Change

  • Previous filing in this sequence was filed on 25 Jun 2026.
  • Current net transaction value: $0.

Research use

  • This tells you what this filing adds before you inspect full transaction and derivative tables.
  • You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001194368 Primary reporting owner

RACHESKY MARK H MD

Relationship
Director, 10%+ Owner
Address
40 WEST 57TH STREET, FLOOR 24, NEW YORK
Signature
/s/ Janet Yeung as attorney in fact
Signature date
10 Jul 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

LION transaction

Common Shares

Sale

Transaction value
Shares
-1,469,450
Change %
-100%
Price
Shares after
0
Date
08 Jul 2026
Ownership
See Footnotes
Footnotes
F7, F8, F27, F32, F33
LION transaction

Common Shares

Sale

Transaction value
Shares
-3,701,988
Change %
-100%
Price
Shares after
0
Date
08 Jul 2026
Ownership
See Footnotes
Footnotes
F9, F10, F28, F32, F33
LION transaction

Common Shares

Sale

Transaction value
Shares
-25,173,882
Change %
-100%
Price
Shares after
0
Date
08 Jul 2026
Ownership
See Footnotes
Footnotes
F11, F12, F29, F32, F33
LION transaction

Common Shares

Purchase

Transaction value
Shares
+797,526
Change %
Price
Shares after
797,526
Date
08 Jul 2026
Ownership
See Footnotes
Footnotes
F13, F14, F27, F32, F33
LION transaction

Common Shares

Purchase

Transaction value
Shares
+1,916,271
Change %
Price
Shares after
1,916,271
Date
08 Jul 2026
Ownership
See Footnotes
Footnotes
F15, F16, F28, F32, F33
LION transaction

Common Shares

Purchase

Transaction value
Shares
+11,154,680
Change %
Price
Shares after
11,154,680
Date
08 Jul 2026
Ownership
See Footnotes
Footnotes
F17, F18, F29, F32, F33
LION transaction

Common Shares

Purchase

Transaction value
Shares
+671,924
Change %
Price
Shares after
671,924
Date
08 Jul 2026
Ownership
See Footnotes
Footnotes
F19, F20, F27, F32, F33
LION transaction

Common Shares

Sale

Transaction value
Shares
-499,765
Change %
-74%
Price
Shares after
172,159
Date
08 Jul 2026
Ownership
See Footnotes
Footnotes
F19, F20, F30, F32, F33
LION transaction

Common Shares

Purchase

Transaction value
Shares
+499,765
Change %
Price
Shares after
499,765
Date
08 Jul 2026
Ownership
See Footnotes
Footnotes
F21, F22, F30, F32, F33
LION transaction

Common Shares

Purchase

Transaction value
Shares
+15,804,919
Change %
Price
Shares after
15,804,919
Date
08 Jul 2026
Ownership
See Footnotes
Footnotes
F23, F24, F28, F29, F32, F33
LION transaction

Common Shares

Sale

Transaction value
Shares
-11,755,412
Change %
-74%
Price
Shares after
4,049,507
Date
08 Jul 2026
Ownership
See Footnotes
Footnotes
F23, F24, F31, F32, F33
LION transaction

Common Shares

Purchase

Transaction value
Shares
+11,755,412
Change %
Price
Shares after
11,755,412
Date
08 Jul 2026
Ownership
See Footnotes
Footnotes
F25, F26, F31, F32, F33
LION holding

Common Shares

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
262,212
Date
08 Jul 2026
Ownership
Direct
LION holding

Common Shares

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
20,107
Date
08 Jul 2026
Ownership
Direct
Footnotes
F1
LION holding

Common Shares

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
2,385,199
Date
08 Jul 2026
Ownership
See Footnotes
Footnotes
F2, F3, F32, F33
LION holding

Common Shares

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
310,381
Date
08 Jul 2026
Ownership
See Footnotes
Footnotes
F4, F32, F33
LION holding

Common Shares

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
4,607,598
Date
08 Jul 2026
Ownership
See Footnotes
Footnotes
F5, F6, F32, F33
* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 33 footnotes

Footnote F1

These are restricted share units granted by the Issuer, payable upon vesting in an equal number of Common Shares, which are scheduled to vest in one remaining annual installment on November 28, 2026.

Footnote F2

These Common Shares are held for the account of MHR Capital Partners Master Account LP, an Anguilla, British West Indies limited partnership ("Master Account"). MHR Advisors LLC, a Delaware limited liability company ("Advisors"), is the general partner of Master Account. MHRC LLC, a Delaware limited liability company ("MHRC"), is the managing member of Advisors. Mark H. Rachesky, M.D. ("Dr. Rachesky") is the managing member of MHRC. MHR Fund Management LLC ("Fund Management") has an investment management agreement with Master Account pursuant to which it has the power to vote or direct the vote and to dispose or to direct the disposition of the Common Shares held for the account of Master Account. MHR Holdings LLC, a Delaware limited liability company ("MHR Holdings"), is the managing member of Fund Management. (Continued to footnote 3)

Footnote F3

Accordingly, Advisors, MHRC, Fund Management, MHR Holdings and Dr. Rachesky may be deemed to beneficially own the Common Shares held for the account of Master Account. Each of Advisors, MHRC, Fund Management, MHR Holdings and Dr. Rachesky disclaims beneficial ownership of such Common Shares except to the extent of their pecuniary interest therein.

Footnote F4

These Common Shares are held for the account of MHR Capital Partners (100) LP, a Delaware limited partnership ("Capital Partners (100)"). Advisors is the general partner of Capital Partners (100). MHRC is the managing member of Advisors. Dr. Rachesky is the managing member of MHRC. Fund Management has an investment management agreement with Capital Partners (100) pursuant to which it has the power to vote or direct the vote and to dispose or to direct the disposition of the Common Shares held for the account of Capital Partners (100). MHR Holdings is the managing member of Fund Management. Accordingly, Advisors, MHRC, Fund Management, MHR Holdings and Dr. Rachesky may be deemed to beneficially own the Common Shares held for the account of Capital Partners (100). Each of Advisors, MHRC, Fund Management, MHR Holdings and Dr. Rachesky disclaims beneficial ownership of such Common Shares except to the extent of their pecuniary interest therein.

Footnote F5

These Common Shares are held for the account of MHR Institutional Partners IV LP, a Delaware limited partnership ("Institutional Partners IV"). MHR Institutional Advisors IV LLC, a Delaware limited liability company ("Institutional Advisors IV") is the general partner of Institutional Partners IV. Dr. Rachesky is the managing member of Institutional Advisors IV. Fund Management has an investment management agreement with Institutional Partners IV pursuant to which it has the power to vote or direct the vote and to dispose or to direct the disposition of the Common Shares held for the account of Institutional Partners IV. MHR Holdings is the managing member of Fund Management. (Continued to footnote 6)

Footnote F6

Accordingly, Institutional Advisors IV, Fund Management, MHR Holdings and Dr. Rachesky may be deemed to beneficially own the Common Shares held for the account of Institutional Partners IV. Each of Institutional Advisors IV, Fund Management, MHR Holdings and Dr. Rachesky disclaims beneficial ownership of such Common Shares except to the extent of their pecuniary interest therein.

Footnote F7

These Common Shares are held for the account of MHR Institutional Partners II LP, a Delaware limited partnership ("Institutional Partners II"). MHR Institutional Advisors II LLC, a Delaware limited liability company ("Institutional Advisors II"), is the general partner of Institutional Partners II. MHRC II LLC, a Delaware limited liability company ("MHRC II"), is the managing member of Institutional Advisors II. Dr. Rachesky is the managing member of MHRC II. Fund Management has an investment management agreement with Institutional Partners II pursuant to which it has the power to vote or direct the vote and to dispose or to direct the disposition of the Common Shares held for the account of Institutional Partners II. MHR Holdings is the managing member of Fund Management. (Continued to footnote 8)

Footnote F8

Accordingly, Institutional Advisors II, MHRC II, Fund Management, MHR Holdings and Dr. Rachesky may be deemed to beneficially own the Common Shares held for the account of Institutional Partners II. Each of Institutional Advisors II, MHRC II, Fund Management, MHR Holdings and Dr. Rachesky disclaims beneficial ownership of such Common Shares except to the extent of their pecuniary interest therein.

Footnote F9

These Common Shares are held for the account of MHR Institutional Partners IIA LP, a Delaware limited partnership ("Institutional Partners IIA"). Institutional Advisors II is the general partner of Institutional Partners IIA. MHRC II is the managing member of Institutional Advisors II. Dr. Rachesky is the managing member of MHRC II. Fund Management has an investment management agreement with Institutional Partners IIA pursuant to which it has the power to vote or direct the vote and to dispose or to direct the disposition of the Common Shares held for the account of Institutional Partners IIA. MHR Holdings is the managing member of Fund Management. (Continued to footnote 10)

Footnote F10

Accordingly, Institutional Advisors II, MHRC II, Fund Management, MHR Holdings and Dr. Rachesky may be deemed to beneficially own the Common Shares held for the account of Institutional Partners IIA. Each of Institutional Advisors II, MHRC II, Fund Management, MHR Holdings and Dr. Rachesky disclaims beneficial ownership of such Common Shares except to the extent of their pecuniary interest therein.

Footnote F11

These Common Shares are held for the account of MHR Institutional Partners III LP, a Delaware limited partnership ("Institutional Partners III"). MHR Institutional Advisors III LLC, a Delaware limited liability company ("Institutional Advisors III"), is the general partner of Institutional Partners III. Dr. Rachesky is the managing member of Institutional Advisors III. Fund Management has an investment management agreement with Institutional Partners III pursuant to which it has the power to vote or direct the vote and to dispose or to direct the disposition of the Common Shares held for the account of Institutional Partners III. MHR Holdings is the managing member of Fund Management. (Continued to footnote 12)

Footnote F12

Accordingly, Institutional Advisors III, Fund Management, MHR Holdings and Dr. Rachesky may be deemed to beneficially own the Common Shares held for the account of Institutional Partners III. Each of Institutional Advisors III, Fund Management, MHR Holdings and Dr. Rachesky disclaims beneficial ownership of such Common Shares except to the extent of their pecuniary interest therein.

Footnote F13

These Common Shares are held for the account of MHR Sun II LP, a Delaware limited partnership ("Sun II"). MHR Institutional Advisors II LLC, a Delaware limited liability company ("Institutional Advisors II"), is the general partner of Sun II. MHRC II is the managing member of Institutional Advisors II. Dr. Rachesky is the managing member of MHRC II. Fund Management has an investment management agreement with Sun II pursuant to which it has the power to vote or direct the vote and to dispose or to direct the disposition of the Common Shares held for the account of Sun II. MHR Holdings is the managing member of Fund Management. (Continued to footnote 14)

Footnote F14

Accordingly, Institutional Advisors II, MHRC II, Fund Management, MHR Holdings and Dr. Rachesky may be deemed to beneficially own the Common Shares held for the account of Sun II. Each of Institutional Advisors II, MHRC II, Fund Management, MHR Holdings and Dr. Rachesky disclaims beneficial ownership of such Common Shares except to the extent of their pecuniary interest therein.

Footnote F15

These Common Shares are held for the account of MHR Sun IIA LP, a Delaware limited partnership ("Sun IIA"). Institutional Advisors II is the general partner of Sun IIA. MHRC II is the managing member of Institutional Advisors II. Dr. Rachesky is the managing member of MHRC II. Fund Management has an investment management agreement with Sun IIA pursuant to which it has the power to vote or direct the vote and to dispose or to direct the disposition of the Common Shares held for the account of Sun IIA. MHR Holdings is the managing member of Fund Management. (Continued to footnote 16)

Footnote F16

Accordingly, Institutional Advisors II, MHRC II, Fund Management, MHR Holdings and Dr. Rachesky may be deemed to beneficially own the Common Shares held for the account of Sun IIA. Each of Institutional Advisors II, MHRC II, Fund Management, MHR Holdings and Dr. Rachesky disclaims beneficial ownership of such Common Shares except to the extent of their pecuniary interest therein.

Footnote F17

These Common Shares are held for the account of MHR Sun III LP, a Delaware limited partnership ("Sun III"). MHR Institutional Advisors III LLC, a Delaware limited liability company ("Institutional Advisors III"), is the general partner of Sun III. Dr. Rachesky is the managing member of Institutional Advisors III. Fund Management has an investment management agreement with Sun III pursuant to which it has the power to vote or direct the vote and to dispose or to direct the disposition of the Common Shares held for the account of Sun III. MHR Holdings is the managing member of Fund Management. (Continued to footnote 18)

Footnote F18

Accordingly, Institutional Advisors III, Fund Management, MHR Holdings and Dr. Rachesky may be deemed to beneficially own the Common Shares held for the account of Sun III. Each of Institutional Advisors III, Fund Management, MHR Holdings and Dr. Rachesky disclaims beneficial ownership of such Common Shares except to the extent of their pecuniary interest therein.

Footnote F19

These Common Shares are held for the account of MHR LION Holdco A LP, a Delaware limited partnership ("LION Holdco A"). MHR Sun GP LLC, a Delaware limited liability company ("MHR Sun GP"), is the general partner of LION Holdco A. The Rachesky Revocable Trust (the "Trust") is the managing member of MHR Sun GP. Dr. Rachesky is the sole trustee of the Trust. Fund Management has an investment management agreement with LION Holdco A pursuant to which it has the power to vote or direct the vote and to dispose or to direct the disposition of the Common Shares held for the account of LION Holdco A. MHR Holdings is the managing member of Fund Management. (Continued to footnote 20)

Footnote F20

Accordingly, MHR Sun GP, the Trust, Fund Management, MHR Holdings and Dr. Rachesky may be deemed to beneficially own the Common Shares held for the account of LION Holdco A. Each of MHR Sun GP, the Trust, Fund Management, MHR Holdings and Dr. Rachesky disclaims beneficial ownership of such Common Shares except to the extent of their pecuniary interest therein.

Footnote F21

These Common Shares are held for the account of MHR LION SubHoldco A LP, a Delaware limited partnership ("LION SubHoldco A"). MHR Sun GP is the general partner of LION SubHoldco A. The Trust is the managing member of MHR Sun GP. Dr. Rachesky is the sole trustee of the Trust. Fund Management has an investment management agreement with LION SubHoldco A pursuant to which it has the power to vote or direct the vote and to dispose or to direct the disposition of the Common Shares held for the account of LION SubHoldco A. MHR Holdings is the managing member of Fund Management. (Continued to footnote 22)

Footnote F22

Accordingly, MHR Sun GP, the Trust, Fund Management, MHR Holdings and Dr. Rachesky may be deemed to beneficially own the Common Shares held for the account of LION SubHoldco A. Each of MHR Sun GP, the Trust, Fund Management, MHR Holdings and Dr. Rachesky disclaims beneficial ownership of such Common Shares except to the extent of their pecuniary interest therein.

Footnote F23

These Common Shares are held for the account of MHR LION Holdco B LP, a Delaware limited partnership ("LION Holdco B"). MHR Sun GP is the general partner of LION Holdco B. The Trust is the managing member of MHR Sun GP. Dr. Rachesky is the sole trustee of the Trust. Fund Management has an investment management agreement with LION Holdco B pursuant to which it has the power to vote or direct the vote and to dispose or to direct the disposition of the Common Shares held for the account of LION Holdco B. MHR Holdings is the managing member of Fund Management. (Continued to footnote 24)

Footnote F24

Accordingly, MHR Sun GP, the Trust, Fund Management, MHR Holdings and Dr. Rachesky may be deemed to beneficially own the Common Shares held for the account of LION Holdco B. Each of MHR Sun GP, the Trust, Fund Management, MHR Holdings and Dr. Rachesky disclaims beneficial ownership of such Common Shares except to the extent of their pecuniary interest therein.

Footnote F25

These Common Shares are held for the account of MHR LION SubHoldco B LP, a Delaware limited partnership ("LION SubHoldco B"). MHR Sun GP is the general partner of LION SubHoldco B. The Trust is the managing mamber of MHR Sun GP. Dr. Rachesky is the sole trustee of the Trust. Fund Management has an investment management agreement with LION SubHoldco B pursuant to which it has the power to vote or direct the vote and to dispose or to direct the disposition of the Common Shares held for the account of LION SubHoldco B. MHR Holdings is the managing member of Fund Management. (Continued to footnote 26)

Footnote F26

Accordingly, MHR Sun GP, the Trust, Fund Management, MHR Holdings and Dr. Rachesky may be deemed to beneficially own the Common Shares held for the account of LION SubHoldco B. Each of MHR Sun GP, the Trust, Fund Management, MHR Holdings and Dr. Rachesky disclaims beneficial ownership of such Common Shares except to the extent of their pecuniary interest therein.

Footnote F27

In connection with that certain continuation fund transaction, as further described in Amendment No. 2 to Schedule 13D filed by the certain of the reporting persons on July 9, 2026 (the "CV Transaction"), Institutional Partners II contributed the Common Shares held for its account to Sun II and LION Holdco A, in exchange for limited partnership interests in Sun II and limited partnership interests and certain other interests in LION Holdco A. Dr. Rachesky's indirect pecuniary interest in the Common Shares may be deemed to have increased as a result of the transactions described in footnotes (27), (28) and (29) due to Dr. Rachesky and certain of his affiliated entities being investors in an entity that is a limited partner in LION Holdco A and LION Holdco B.

Footnote F28

In connection with the CV Transaction, Institutional Partners IIA contributed the Common Shares held for its account to Sun IIA and LION Holdco B, in exchange for limited partnership interests in Sun IIA and limited partnership interests and certain other interests in LION Holdco B.

Footnote F29

In connection with the CV Transaction, Institutional Partners III contributed the Common Shares held for its account to Sun III and LION Holdco B, in exchange for limited partnership interests in Sun III and limited partnership interests and certain other interests in LION Holdco B.

Footnote F30

In further connection with the CV Transaction, immediately following the contribution of Common Shares from Institutional Partners II, LION Holdco A, as the sole limited partner of LION SubHoldco A, contributed certain of the Common Shares held for its account to LION SubHoldco A.

Footnote F31

In connection with the CV Transaction, immediately following the contribution of Common Shares from Institutional Partners IIA and Institutional Partners III, LION Holdco B, as the sole limited partner of LION SubHoldco B, contributed certain of the Common Shares held for its account to LION SubHoldco B.

Footnote F32

The Common Shares reported as owned on this Form 4 do not include the Common Shares, which the reporting persons may be deemed to beneficially own as a result of that certain Voting and Standstill Agreement, by and among the Issuer, Liberty Global Ventures Limited, a limited company organized under the laws of England and Wales, Liberty Global Ltd., Bermuda exempted company limited by shares, Discovery Lightning Investments Ltd., a limited company organized under the laws of England and Wales, Warner Bros. Discovery, Inc., a Delaware corporation, Master Account, Capital Partners (100), Institutional Partners II, Institutional Partners IIA, Institutional Partners III, Institutional Partners IV and Fund Management, but as to which they have no pecuniary interest.

Footnote F33

The Common Shares reported as owned on this Form 4 do not include the Common Shares, which the reporting persons may be deemed to beneficially own as a result of that certain Governance, Standstill and Voting Agreement, by and among Fund Management and certain of its affiliates and Liberty 77 Capital L.P., a Delaware limited partnership, Liberty 77 Fund L.P., a Cayman Islands exempted limited partnership and Liberty 77 Fund International L.P., a Cayman Islands exempted limited partnership, but as to which they have no pecuniary interest.

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