Security key
55939A107
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 596,136
- Total 13F value
- $6,764,958
- Share change
- -77,403
- SEC-reported price per share
- $11.34
- Number of holders
- 25
- Value change
- -$883,199
- Number of buys
- 10
- Number of sells
- 10
- Shares outstanding
- 35,672,897
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q3 2026
Institutions
25
Top holders
10
MAGN full security history
Ownership snapshot
Full 13F holder table
Magnera Corp SEC filings
Magnera Corp company facts
Broader feeds
Reporting periods
Holder history for CUSIP 55939A107
Recent filing periods:
Ownership snapshot
Top reported holders of MAGN - Magnera Corp - Common Stock (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
Newtyn Management, LLC
Disclosed value leader
Newtyn Management, LLC
Comparable rows
6/15
Latest evidence
28 Jul 2026
13F
13D/G
3/4/5
Lead comparable stake: 7.7%
9 rows are not safely comparable across share classes.
13D/G row: Newtyn Management, LLC
Showing 1-6 of 15 holder rows.
Quick read
Newtyn Management, LLC leads the comparable SEC ownership view at 7.7%.
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 Newtyn Management, LLC's linked filing trail.
Comparable ownership
Top 5
Newtyn Management, LLC
7.7%
BlackRock, Inc.
7.1%
Madison Avenue Partners, LP
4.4%
Cetus Capital VI, L.P.
4.4%
MORGAN STANLEY
3.9%
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 |
|---|---|---|---|---|---|
| Newtyn Management, LLC |
13F
13D/G
Company
|
7.7%
Reported 13D/G
· 31 Mar 2026
|
$32,900,000
2,800,000 shares
|
— | 30 Jun 2026 |
| BlackRock, Inc. |
13F
13D/G
Company
|
7.1%
Reported 13D/G
· 30 Jun 2025
|
$30,509,792
2,596,578 shares
|
— | 30 Jun 2026 |
| Madison Avenue Partners, LP |
13F
13D/G
Company · Madison Avenue International LP
|
4.4%
Reported 13D/G
· 31 Mar 2026
|
$15,299,276
1,302,066 shares
|
— | 30 Jun 2026 |
| Cetus Capital VI, L.P. |
13D/G
|
4.4%
Reported 13D/G
· 28 Jul 2026
|
$19,671,107
1,561,199 shares
|
-$8,586,976 | 28 Jul 2026 |
| MORGAN STANLEY |
13F
13D/G
Company
|
3.9%
Reported 13D/G
· 30 Jun 2026
|
$18,026,787
1,534,193 shares
|
— | 30 Jun 2026 |
| Ancora Advisors LLC |
13D/G
13F
Company
|
1.5%
Reported 13D/G
· 31 Dec 2025
|
$8,072,058
533,161 shares
|
-$20,442,255 | 31 Dec 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
25
Shares
596,136
Rows available
25
| 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
176
Q3 2026 holders
25
Holder diff
-151
| 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