MAGN · Magnera Corp

$12.40 +0.07 (+0.57%) At close · Aug 28

Russell 2000 member Rebalance outlook locked

Market Cap

$443.92M

35.80M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Quarter:

Holders: 180

Total Value: $423,053,902

Total Shares: 36,004,594

Showing 1–100 of 180 holdings by value · page 1 of 2

Institutional Ownership Trend

22 quarters

Holder Concentration

Across 180 13F filers · Δ vs Mar 31, 2026

Top Holder

7.8%

+0.3 pts

Top 5

30.8%

−1.3 pts

Top 10

47.5%

−2.1 pts

HHI

319

Broadly held−12

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: +2

Institutional value: +21.1%

Shares held: -2.0%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mega AMERICAN CENTURY COMPANIES INC	+378,858	599,991
Mega AQR CAPITAL MANAGEMENT LLC	+333,970	479,549
Mega DIMENSIONAL FUND ADVISORS LP	+317,436	571,344
Mega UBS Group AG	+212,788	506,934
Mega BlackRock, Inc.	+206,571	2,596,578

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Micro LITTLEJOHN & CO LLC	−536,730	1,889,088
Mega MORGAN STANLEY	−433,638	1,534,193
Mid Madison Avenue Partners, LP	−288,550	1,302,066
Mega JPMORGAN CHASE & CO	−217,934	610,865
Mega Russell Investments Group, Ltd.	−202,840	304,607

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Mega SG Americas Securities, LLC	397,523	$4,670,895
Mid PRIVATE MANAGEMENT GROUP INC	186,728	$2,194,054
Mega NORGES BANK	180,500	$2,120,875
Large Balyasny Asset Management L.P.	81,310	$955,392
Large Thrivent Financial for Lutherans	71,449	$839,525

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Mid Ancora Advisors LLC	721,090	$6,857,565
Mega MILLENNIUM MANAGEMENT LLC	199,969	$1,901,705
Mid Weiss Asset Management LP	117,506	$1,117,482
Large ING GROEP NV	110,000	$1,046,100
Mid Y-Intercept (Hong Kong) Ltd	78,572	$747,219

Filter: New 30 Increased 63 Reduced 44 Sold out 28 Unchanged 43

Showing 100 of 180

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

Newtyn Management, LLC

$32,900,000

7.78%

2,800,000

BlackRock, Inc.

$30,509,789

7.21%

2,596,578

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BLACKROCK FINANCIAL MANAGEMENT INC/DE	39,709	$466,580	1.5%	Sole
BlackRock Investment Management, LLC	99,111	$1,164,554	3.8%	Sole
BLACKROCK ADVISORS LLC	72,319	$849,748	2.8%	Sole
BlackRock Fund Advisors	1,291,288	$15,172,634	49.7%	Sole
BlackRock Institutional Trust Company, N.A.	1,040,040	$12,220,470	40.1%	Sole
BlackRock (Netherlands) B.V.	686	$8,060	0.0%	Sole
Aperio Group, LLC	53,286	$626,110	2.1%	Sole
SpiderRock Advisors, LLC	139	$1,633	0.0%	Sole

Engine Capital Management, LP

$26,364,967

6.23%

2,243,827

LITTLEJOHN & CO LLC

$22,196,784

5.25%

1,889,088

VANGUARD CAPITAL MANAGEMENT LLC

$18,366,554

4.34%

1,563,111

MORGAN STANLEY

$18,026,764

4.26%

1,534,193

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO INTERNATIONAL PLC	18	$211	0.0%	Defined
MORGAN STANLEY & CO. LLC	18,504	$217,422	1.2%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	1,369,957	$16,096,994	89.3%	Defined
MORGAN STANLEY INVESTMENT MANAGEMENT INC	91	$1,069	0.0%	Defined
MORGAN STANLEY SMITH BARNEY LLC	2,762	$32,452	0.2%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	142,632	$1,675,926	9.3%	Defined
EATON VANCE MANAGEMENT	12	$141	0.0%	Defined
BOSTON MANAGEMENT & RESEARCH	217	$2,549	0.0%	Defined

Madison Avenue Partners, LP

$15,299,275

3.62%

1,302,066

Diameter Capital Partners LP

$14,168,067

3.35%

1,205,793

DG Capital Management, LLC

$12,942,343

3.06%

1,101,476

GEODE CAPITAL MANAGEMENT, LLC

$10,133,011

2.40%

862,384

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	125,977	$1,480,229	14.6%	Defined
Held directly	736,407	$8,652,782	85.4%	Defined

CANYON CAPITAL ADVISORS LLC

$9,517,500

2.25%

810,000

D. E. Shaw & Co., Inc.

$9,279,503

2.19%

789,745

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
D. E. SHAW & CO, L.P.	789,745	$9,279,503	100.0%	Defined

Clearline Capital LP

$8,707,878

2.06%

741,096

STATE STREET CORP

$7,895,142

1.87%

671,927

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STATE STREET GLOBAL ADVISORS EUROPE LIMITED joint	671,927	$7,895,142	100.0%	Defined

JB CAPITAL PARTNERS LP

$7,696,250

1.82%

655,000

THOMPSON SIEGEL & WALMSLEY LLC

$7,635,220

1.80%

649,806

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Perpetual Ltd	649,806	$7,635,220	100.0%	Defined

JPMORGAN CHASE & CO

$7,177,661

1.70%

610,865

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JPMorgan Chase Bank, N.A.	13,998	$164,476	2.3%	Defined
J.P. Morgan Investment Management Inc.	2,457	$28,869	0.4%	Defined
J.P. Morgan Securities LLC	594,031	$6,979,863	97.2%	Defined
J.P. Morgan Securities plc	80	$940	0.0%	Defined
J.P. Morgan Markets Ltd	299	$3,513	0.0%	Defined

Verition Fund Management LLC

$7,135,810

1.69%

607,303

JACOBS LEVY EQUITY MANAGEMENT, INC

$7,068,788

1.67%

601,599

AMERICAN CENTURY COMPANIES INC

$7,049,894

1.67%

599,991

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
AMERICAN CENTURY INVESTMENT MANAGEMENT INC	599,991	$7,049,894	100.0%	Defined

AMERIPRISE FINANCIAL INC

$6,797,351

1.61%

578,498

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Columbia Management Investment Advisers, LLC	578,220	$6,794,085	100.0%	Defined
Ameriprise Financial Services, LLC	278	$3,266	0.0%	Defined

DIMENSIONAL FUND ADVISORS LP

$6,713,291

1.59%

571,344

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Dimensional Fund Advisors Ltd.	2,042	$23,993	0.4%	Defined
DFA Australia Ltd.	3,247	$38,152	0.6%	Defined
Dimensional Ireland Ltd	1,915	$22,501	0.3%	Defined
Held directly	564,140	$6,628,645	98.7%	Sole

Assenagon Asset Management S.A.

$6,567,744

1.55%

558,957

UBS Group AG

$5,956,474

1.41%

506,934

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Financial Services Inc	1,856	$21,808	0.4%	Defined
UBS AG	505,078	$5,934,666	99.6%	Defined

AQR CAPITAL MANAGEMENT LLC

$5,634,699

1.33%

479,549

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Petros Family Wealth, LLC	54	$634	0.0%	Other
Arax Advisory Partners	5,672	$66,646	1.2%	Other
HALBERT HARGROVE GLOBAL ADVISORS, LLC	1,793	$21,067	0.4%	Other
Stokes Family Office, LLC	616	$7,238	0.1%	Other
Held directly	471,414	$5,539,114	98.3%	Defined

ALGERT GLOBAL LLC

$5,256,562

1.24%

447,367

J. Goldman & Co LP

$4,993,620

1.18%

424,989

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

$4,973,904

1.18%

423,311

Seven Six Capital Management, LLC

$4,683,174

1.11%

398,568

SG Americas Securities, LLC

$4,670,895

1.10%

397,523

GOLDMAN SACHS GROUP INC

$4,364,983

1.03%

371,488

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	200,306	$2,353,595	53.9%	Defined
GOLDMAN SACHS ASSET MANAGEMENT, L.P.	171,182	$2,011,388	46.1%	Defined

VANGUARD PORTFOLIO MANAGEMENT LLC

$4,238,201

1.00%

360,698

Russell Investments Group, Ltd.

$3,579,129

0.85%

304,607

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Russell Investment Management, LLC joint	135,486	$1,591,960	44.5%	Defined
Russell Investments Capital, LLC joint	84,783	$996,199	27.8%	Other
Russell Investments France SAS	26,495	$311,316	8.7%	Defined
Russell Investments Trust Company joint	57,843	$679,654	19.0%	Defined

Loews Corp

$3,525,000

0.83%

300,000

BNP PARIBAS ARBITRAGE, SA

$3,437,450

0.81%

292,549

NORTHERN TRUST CORP

$3,333,932

0.79%

283,739

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NORTHERN TRUST CO joint	273,057	$3,208,419	96.2%	Defined
NORTHERN TRUST GLOBAL INVESTMENTS LTD	5,383	$63,250	1.9%	Defined
DWS INVESTMENT MANAGEMENT AMERICAS, INC joint	5,299	$62,263	1.9%	Other

CastleKnight Management LP

$3,314,616

0.78%

282,095

VANGUARD FIDUCIARY TRUST CO

$2,647,921

0.63%

225,355

GRATIA CAPITAL, LLC

$2,642,246

0.62%

224,872

Squarepoint Ops LLC

$2,552,946

0.60%

217,272

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Squarepoint Capital LLP	217,272	$2,552,946	100.0%	Defined

Man Group plc

$2,434,247

0.58%

207,170

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Numeric Investors LLC	207,170	$2,434,247	100.0%	Defined

BRIDGEWAY CAPITAL MANAGEMENT, LLC

$2,427,597

0.57%

206,604

LSV ASSET MANAGEMENT

$2,345,570

0.55%

199,623

READYSTATE ASSET MANAGEMENT LP

$2,262,274

0.53%

192,534

PRIVATE MANAGEMENT GROUP INC

$2,194,054

0.52%

186,728

NORGES BANK

$2,120,875

0.50%

180,500

Trexquant Investment LP

$2,058,318

0.49%

175,176

STATE OF WISCONSIN INVESTMENT BOARD

$1,937,434

0.46%

164,888

HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND

$1,898,800

0.45%

161,600

TUDOR INVESTMENT CORP ET AL

$1,733,066

0.41%

147,495

Empowered Funds, LLC

$1,665,656

0.39%

141,758

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Bridgeway Capital Management, LLC	141,758	$1,665,656	100.0%	Other

CITADEL ADVISORS LLC

$1,589,598

0.38%

135,285

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	135,284	$1,589,587	100.0%	Defined
Held directly	1	$11	0.0%	Defined

Bank of New York Mellon Corp

$1,500,532

0.35%

127,705

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Mellon Investments Corporation	29,770	$349,797	23.3%	Defined
The Bank of New York Mellon	59,565	$699,888	46.6%	Defined
Newton Investment Management North America, LLC	38,368	$450,824	30.0%	Defined
Held directly	2	$23	0.0%	Defined

Vanguard Global Advisers, LLC

$1,296,835

0.31%

110,369

XTX Topco Ltd

$1,256,133

0.30%

106,905

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	106,905	$1,256,133	100.0%	Defined

Alpine Global Management, LLC

$1,175,000

0.28%

100,000

Invesco Ltd.

$1,171,638

0.28%

99,714

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Invesco Advisers, Inc. joint	4,103	$48,210	4.1%	Defined
Invesco Trust Co joint	12,621	$148,296	12.7%	Defined
Invesco Capital Management LLC	82,990	$975,132	83.2%	Defined

Jump Financial, LLC

$1,049,721

0.25%

89,338

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jump Trading Holdings, LLC joint	89,338	$1,049,721	100.0%	Defined

RAYMOND JAMES FINANCIAL INC

$995,259

0.24%

84,703

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RAYMOND JAMES & ASSOCIATES	84,381	$991,476	99.6%	Defined
Raymond James Financial Services Advisors, Inc.	322	$3,783	0.4%	Defined

Balyasny Asset Management L.P.

$955,392

0.23%

81,310

Quinn Opportunity Partners LLC

$888,582

0.21%

75,624

FMR LLC

$872,437

0.21%

74,250

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Fidelity Management & Research Co LLC	74,146	$871,215	99.9%	Defined
STRATEGIC ADVISERS LLC	104	$1,222	0.1%	Defined

BANK OF AMERICA CORP /DE/

$849,583

0.20%

72,305

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BANK OF AMERICA NA	54,625	$641,843	75.5%	Defined
BOFA SECURITIES, INC.	17,680	$207,740	24.5%	Defined

Thrivent Financial for Lutherans

$839,525

0.20%

71,449

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Thrivent Asset Management, LLC	27,705	$325,533	38.8%	Defined
Held directly	43,744	$513,992	61.2%	Sole

Susquehanna Portfolio Strategies, LLC

$833,098

0.20%

70,902

PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO

$672,981

0.16%

57,275

Nuveen, LLC

$655,168

0.15%

55,759

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Nuveen Asset Management, LLC joint	10,971	$128,909	19.7%	Defined
TEACHERS ADVISORS, LLC joint	44,788	$526,259	80.3%	Defined

Quantbot Technologies LP

$634,699

0.15%

54,017

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Manager 1	54,017	$634,699	100.0%	Sole

Voleon Capital Management LP

$588,522

0.14%

50,087

Engineers Gate Manager LP

$578,570

0.14%

49,240

RBF Capital, LLC

$534,531

0.13%

45,492

RHUMBLINE ADVISERS

$483,923

0.11%

41,185

Tactive Advisors, LLC

$470,411

0.11%

40,035

ALLIANCEBERNSTEIN L.P.

$459,824

0.11%

39,134

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Equitable Holdings, Inc.	39,134	$459,824	100.0%	Defined

PRICE T ROWE ASSOCIATES INC /MD/

$441,917

0.10%

37,610

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
T. Rowe Price International Ltd	37,610	$441,917	100.0%	Defined

DEUTSCHE BANK AG\

$387,092

0.09%

32,944

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
DWS Investments UK Ltd	32,944	$387,092	100.0%	Defined

VOYA INVESTMENT MANAGEMENT LLC

$383,708

0.09%

32,656

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Voya Investment Management Co. LLC joint	32,656	$383,708	100.0%	Defined

CANADA PENSION PLAN INVESTMENT BOARD

$371,300

0.09%

31,600

Odyssean, LLC

$355,273

0.08%

30,236

WELLS FARGO & COMPANY/MN

$351,266

0.08%

29,895

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO BANK N A	28,240	$331,820	94.5%	Defined
WELLS FARGO ADVISORS FINANCIAL NETWORK, LLC	172	$2,021	0.6%	Defined
WELLS FARGO CLEARING SERVICES, LLC	1,439	$16,908	4.8%	Defined
Wells Fargo Securities, LLC	44	$517	0.1%	Defined

Dynamic Technology Lab Private Ltd

$340,068

0.08%

28,942

CITIGROUP INC

$307,673

0.07%

26,185

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	26,185	$307,673	100.0%	Defined

Sterling Capital Management LLC

$304,560

0.07%

25,920

KNIGHTSBRIDGE ASSET MANAGEMENT, LLC

$299,366

0.07%

25,478

TWO SIGMA INVESTMENTS, LP

$290,706

0.07%

24,741

BROWN ADVISORY INC

$259,134

0.06%

22,054

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Brown Advisory LLC	22,054	$259,134	100.0%	Defined

Creative Planning

$258,641

0.06%

22,012

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
CREATIVE PLANNING TRUST Co LLC	260	$3,055	1.2%	Defined
Held directly	21,752	$255,586	98.8%	Sole

IEQ CAPITAL, LLC

$254,187

0.06%

21,633

Brevan Howard Capital Management LP

$249,288

0.06%

21,216

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Brevan Howard US Investment Management, LP	21,216	$249,288	100.0%	Defined

National Philanthropic Trust

$244,964

0.06%

20,848

PRELUDE CAPITAL MANAGEMENT, LLC

$236,457

0.06%

20,124

LPL Financial LLC

$235,105

0.06%

20,009

State of Wyoming

$233,167

0.06%

19,844

ARISTEIA CAPITAL, L.L.C.

$222,850

0.05%

18,966

Universal- Beteiligungs- und Servicegesellschaft mbH

$218,162

0.05%

18,567

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Universal-Investment-Gesellschaft mbH joint	18,567	$218,162	100.0%	Defined

MetLife Investment Management, LLC

$210,372

0.05%

17,904

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
METLIFE INC	17,904	$210,372	100.0%	Defined

HSBC HOLDINGS PLC

$194,192

0.05%

16,527

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
HSBC BANK PLC	16,527	$194,192	100.0%	Defined

GLENMEDE TRUST CO NA

$190,702

0.05%

16,230

WEALTH ENHANCEMENT ADVISORY SERVICES, LLC

$185,086

0.04%

15,752

EP Wealth Advisors, LLC

$183,981

0.04%

15,658

Key facts CIK 41719 CUSIP 55939A107 13F (30d) 153 filings 151 filers Visit website Investor relations