MAGN · Magnera Corp · Shareholders & Ownership
$11.93
+0.09 (+0.76%)
At close · Oct 23
Return incl. dividend (before tax)
Market Cap
$423.87M
Shares
35.80M
Volume · Oct 23
362.06K
Avg daily vol (3M)
418.03K
Every disclosed holder of MAGN in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns MAGN
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positionsNo chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.
| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 36,295,128 | 101.38% |
| Insiders (Forms 3, 4, 5) | 402,002 | 1.12% |
| 13D/G-only blocks | 4,204,290 | 11.74% |
| Remaining | 5,101,420 | -14.25% |
| Registered funds (N-PORT, not summed) | 7,671,443 | 21.43% |
Shares outstanding: 35,800,000, the issuer's latest cover-page count restated onto today's split basis.
Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of MAGN
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
Newtyn Management, LLC
13F
CIK 1569241 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,800,000 | ||
| 2 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,596,578 | ||
| 2.1 |
iShares Russell 2000 ETF
Fund
S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
862,037 | ||
| 2.2 |
iShares Russell 2000 Value ETF
Fund
S000004342 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
308,167 | ||
| 2.3 |
iShares Micro-Cap ETF
Fund
S000004439 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
113,255 | ||
| 2.4 |
Master Small Cap Index Series
Fund
S000002716 · Registered fund · Jun 30, 2026
Quantitative Master Series LLC, not summed
|
63,119 | ||
| 2.5 |
iShares Russell Small/Mid-Cap Index Fund
Fund
S000050373 · Registered fund · Jul 31, 2026
BlackRock Funds, not summed
|
4,999 | ||
| 3 |
Engine Capital, L.P.
13D
CIK 1580320 · Unknown · Nov 14, 2024
|
2,358,341 | ||
| 4 |
Engine Capital Management, LP
13F
CIK 1665590 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,243,827 | ||
| 5 |
LITTLEJOHN & CO LLC
13F
CIK 1042537 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,889,088 | ||
| 6 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,563,111 | ||
| 7 |
|
1,561,199 | ||
| 8 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,534,193 | ||
| 8.1 |
MORGAN STANLEY
13G
CIK 895421 · Holding company · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
1,391,243 | ||
| 9 |
Madison Avenue Partners, LP
13F
CIK 1801265 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,302,066 | ||
| 10 |
Diameter Capital Partners LP
13F
CIK 1727012 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,205,793 | ||
| 11 |
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund
S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
1,144,017 | ||
| 12 |
DG Capital Management, LLC
13F
CIK 1512716 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,101,476 | ||
| 13 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
862,384 | ||
| 14 |
CANYON CAPITAL ADVISORS LLC
13F
CIK 1074034 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
810,000 | ||
| 15 |
D. E. Shaw & Co., Inc.
13F
CIK 1009207 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
789,745 | ||
| 16 |
Clearline Capital LP
13F
CIK 1600136 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
741,096 | ||
| 17 |
|
671,927 | ||
| 17.1 |
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund
S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
|
11,000 | ||
| 17.2 |
State Street Total Return V.I.S. Fund
Fund
S000001637 · Registered fund · Jun 30, 2026
STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
|
769 | ||
| 17.3 |
State Street Balanced Index Fund
Fund
S000082802 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
|
218 | ||
| 18 |
JB CAPITAL PARTNERS LP
13F
CIK 1138532 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
655,000 | ||
| 19 |
THOMPSON SIEGEL & WALMSLEY LLC
13F
CIK 1008322 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
649,806 | ||
| 20 |
JPMORGAN CHASE & CO
13F
CIK 19617 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
610,865 | ||
| 21 |
Verition Fund Management LLC
13F
CIK 1454027 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
607,303 | ||
| 22 |
JACOBS LEVY EQUITY MANAGEMENT, INC
13F
CIK 884414 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
601,599 | ||
| 23 |
AMERICAN CENTURY COMPANIES INC
13F
CIK 748054 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
599,991 | ||
| 24 |
AMERIPRISE FINANCIAL INC
13F
CIK 820027 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
578,498 | ||
| 24.1 |
Columbia Small Cap Value Discovery Fund
Fund
S000012102 · Registered fund · Jul 31, 2026
COLUMBIA FUNDS SERIES TRUST I, not summed
|
324,737 | ||
| 24.2 |
Columbia Variable Portfolio - Small Cap Value Discovery Fund
Fund
S000012561 · Registered fund · Jun 30, 2026
COLUMBIA FUNDS VARIABLE INSURANCE TRUST, not summed
|
58,733 | ||
| 24.3 |
Columbia Research Enhanced Small Cap ETF
Fund
S000095313 · Registered fund · Jun 30, 2026
Columbia ETF Trust I, not summed
|
52 | ||
| 25 |
DIMENSIONAL FUND ADVISORS LP
13F
CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
571,344 | ||
| 25.1 |
U.S. SMALL CAP VALUE PORTFOLIO
Fund
S000000987 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
155,344 | ||
| 25.2 |
Dimensional US Small Cap Value ETF
Fund
S000075151 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
126,779 | ||
| 25.3 |
Dimensional U.S. Small Cap ETF
Fund
S000070906 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
106,713 | ||
| 25.4 |
Dimensional U.S. Targeted Value ETF
Fund
S000070901 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
69,435 | ||
| 25.5 |
U.S. SMALL CAP PORTFOLIO
Fund
S000000971 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
40,694 | ||
| 26 |
|
506,934 | ||
| 27 |
Avantis U.S. Small Cap Value ETF
Fund
S000066459 · Registered fund · May 31, 2026
American Century ETF Trust, not summed
|
491,815 | ||
| 28 |
AQR CAPITAL MANAGEMENT LLC
13F
CIK 1167557 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
479,549 | ||
| 28.1 |
AQR Small Cap Multi-Style Fund
Fund
S000040064 · Registered fund · Jun 30, 2026
AQR Funds, not summed
|
741 | ||
| 29 |
ALGERT GLOBAL LLC
13F
CIK 1275218 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
447,367 | ||
| 30 |
J. Goldman & Co LP
13F
CIK 1412741 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
424,989 | ||
| 31 |
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
423,311 | ||
| 31.1 |
Schwab Fundamental U.S. Small Company ETF
Fund
S000040878 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
256,456 | ||
| 31.2 |
Schwab Small-Cap Index Fund
Fund
S000005912 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
81,862 | ||
| 31.3 |
Schwab Fundamental U.S. Small Company Index Fund
Fund
S000016767 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
66,982 | ||
| 31.4 |
Schwab Total Stock Market Index Fund
Fund
S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
21,591 | ||
| 31.5 |
Schwab Fundamental U.S. Broad Market ETF
Fund
S000040876 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
3,288 | ||
| 32 |
Assenagon Asset Management S.A.
13F
CIK 1546007 · Unknown · Sep 30, 2026
|
412,591 | ||
| 33 |
Seven Six Capital Management, LLC
13F
CIK 2021188 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
398,568 | ||
| 34 |
SG Americas Securities, LLC
13F
CIK 1313360 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
|
397,523 | ||
| 35 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
381,826 | ||
| 36 |
GOLDMAN SACHS GROUP INC
13F
CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
371,488 | ||
| 36.1 |
Goldman Sachs Absolute Return Tracker Fund
Fund
S000020314 · Registered fund · Jun 30, 2026
GOLDMAN SACHS TRUST, not summed
|
1,453 | ||
| 37 |
Ancora Advisors LLC
13F
CIK 1446114 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
370,701 | ||
| 37.1 |
Ancora/Thelen Small-Mid Cap Fund
Fund
S000039307 · Registered fund · Jun 30, 2026
ANCORA TRUST, not summed
|
114,919 | ||
| 38 |
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
360,698 | ||
| 39 |
Russell Investments Group, Ltd.
13F
CIK 1692234 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
304,607 | ||
| 39.1 |
Tax-Managed U.S. Mid & Small Cap Fund
Fund
S000001571 · Registered fund · Jul 31, 2026
RUSSELL INVESTMENT CO, not summed
|
94,561 | ||
| 39.2 |
U.S. Small Cap Equity Fund
Fund
S000001586 · Registered fund · Jul 31, 2026
RUSSELL INVESTMENT CO, not summed
|
10,485 | ||
| 39.3 |
Russell Investments U.S. Small Cap Equity ETF
Fund
S000089990 · Registered fund · Jun 30, 2026
Russell Investments Exchange Traded Funds, not summed
|
6,869 | ||
| 39.4 |
U.S. Small Cap Equity Fund
Fund
S000006864 · Registered fund · Jun 30, 2026
RUSSELL INVESTMENT FUNDS, not summed
|
2,809 | ||
| 40 |
Loews Corp
13F
CIK 60086 · Insurance company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
300,000 | ||
| 41 |
BNP PARIBAS ARBITRAGE, SA
13F
CIK 1166588 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
|
292,549 | ||
| 42 |
Carlson Capital, L.P.
13D
CIK 1056973 · Registered investment adviser · Nov 4, 2024
|
284,750 | ||
| 43 |
NORTHERN TRUST CORP
13F
CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
283,739 | ||
| 43.1 |
Small Cap Index Fund
Fund
S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
17,128 | ||
| 43.2 |
Small Cap Core Fund
Fund
S000001244 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
32 | ||
| 44 |
CastleKnight Management LP
13F
CIK 1835751 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
282,095 | ||
| 45 |
VANGUARD FIDUCIARY TRUST CO
13F
CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
225,355 | ||
| 46 |
GRATIA CAPITAL, LLC
13F
CIK 1599793 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
224,872 | ||
| 47 |
Squarepoint Ops LLC
13F
CIK 1642575 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
217,272 | ||
| 48 |
NORTH SQUARE DYNAMIC SMALL CAP FUND
Fund
S000063485 · Registered fund · May 31, 2026
Exchange Place Advisors Trust, not summed
|
210,457 | ||
| 49 |
Man Group plc
13F
CIK 1637460 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
207,170 | ||
| 50 |
BRIDGEWAY CAPITAL MANAGEMENT, LLC
13F
CIK 1107261 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
206,604 | ||
| 50.1 |
Omni Small-Cap Value Fund
Fund
S000033567 · Registered fund · Jun 30, 2026
Bridgeway Funds, Inc., not summed
|
64,846 |
12 more nested rows are not shown here; Every filing lists them all.
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.
Showing 1–50 of 272 holders
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