# MAGNERA CORP COM SHS

MAGNERA CORP COM SHS is a security (CUSIP 55939A107) tracked across SEC portfolio filings. 180 institutional managers reported $346.2M on Form 13F as of 2026-06-30; 12 registered fund positions totaling $11.3M via N-PORT as of 2026-05-31.

## Summary

- Issuer: MAGNERA CORP
- Class: COM SHS
- CUSIP: 55939A107
- Asset category: EC
- 13F holders: 180
- 13F value: $346.2M
- 13F period: 2026-06-30
- N-PORT fund positions: 12
- N-PORT value: $11.3M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 180 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $33.1M | 2,184,219 |
| [Newtyn Management, LLC](https://search.stillhousedata.com/firm/161156) | New York, NY | $26.2M | 2,760,000 |
| [LITTLEJOHN & CO LLC](https://search.stillhousedata.com/firm/156720) | GREENWICH, CT | $23.1M | 2,425,818 |
| BlackRock, Inc. | New York, NY | $22.7M | 2,390,007 |
| [Engine Capital Management, LP](https://search.stillhousedata.com/firm/168315) | NEW YORK, NY | $21.3M | 2,243,827 |
| MORGAN STANLEY | NEW YORK, NY | $18.7M | 1,967,831 |
| [Madison Avenue Partners, LP](https://search.stillhousedata.com/firm/298610) | NEW YORK, NY | $15.1M | 1,590,616 |
| [DG Capital Management, LLC](https://search.stillhousedata.com/firm/157258) | New York, NY | $11.5M | 1,207,356 |
| [Diameter Capital Partners LP](https://search.stillhousedata.com/firm/289307) | New York, NY | $11.5M | 1,205,793 |
| [BLACK DIAMOND CAPITAL MANAGEMENT,  L.L.C.](https://search.stillhousedata.com/firm/154495) | STAMFORD, CT | $9.1M | 750,000 |
| D. E. Shaw & Co., Inc. | New York, NY | $8.5M | 896,215 |
| [CANYON CAPITAL ADVISORS LLC](https://search.stillhousedata.com/firm/107922) | DALLAS, TX | $7.7M | 810,000 |
| JPMORGAN CHASE & CO | NEW YORK, NY | $7.4M | 828,799 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $7.4M | 780,258 |
| Clearline Capital LP | NEW YORK, NY | $7.0M | 738,317 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [Ancora/Thelen Small-Mid Cap Fund](https://search.stillhousedata.com/fund/S000039307) | ANCORA TRUST | $4.4M | 208.00% |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $3.7M | 0.45% |
| [VANGUARD RUSSELL 2000 INDEX FUND](https://search.stillhousedata.com/fund/S000030003) | VANGUARD SCOTTSDALE FUNDS | $1.9M | 1.08% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $486K | 1.01% |
| [Russell Investments U.S. Small Cap Equity ETF](https://search.stillhousedata.com/fund/S000089990) | Russell Investments Exchange Traded Funds | $297K | 60.13% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $204K | 0.03% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $171K | 0.06% |
| [U.S. MICRO CAP PORTFOLIO](https://search.stillhousedata.com/fund/S000000948) | DFA INVESTMENT DIMENSIONS GROUP INC | $115K | 0.15% |
| [DWS Small Cap Index VIP](https://search.stillhousedata.com/fund/S000006223) | DEUTSCHE DWS INVESTMENTS VIT FUNDS | $42K | 1.01% |
| Nuveen S&P 500 Dynamic Overwrite Fund | Nuveen S&P 500 Dynamic Overwrite Fund | $3K | 0.01% |
| Guggenheim Active Allocation Fund | Guggenheim Active Allocation Fund | $227 | 0.00% |
| [Blackstone Alternative Multi-Strategy Fund](https://search.stillhousedata.com/fund/S000045538) | Blackstone Alternative Investment Funds | $200 | 0.00% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/55939a107.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.