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Of the 8 tracked institutions holding MAGN, 2 have a 3-year clone track record — 2 of them beat the S&P. Average holder's clone alpha: +4.7pt. It's a gauge of who owns the name, not just how many.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
Among the 8 tracked institutional investors we monitor, MAGN (MAGNERA CORP) is held with a combined value of $80.48M across 6,210,470 shares. The largest holder is VANGUARD GROUP INC with a position worth $33.07M. 7 funds increased their holdings. 1 fund reduced its position.
Total Institutional Value
$80.48M
Total Shares Held
6,210,470
Institutional Holders
8
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | $33.07M | 0.00% | +1.9% |
| 2 | BlackRock, Inc. | $30.51M | 0.00% | +8.6% |
| 3 | STATE STREET CORP | $7.90M | 0.00% | +2.3% |
| 4 | AQR CAPITAL MANAGEMENT LLC | $5.63M | 0.00% | +229.4% |
| 5 | CITADEL ADVISORS LLC | $1.59M | 0.00% | -57.0% |
| 6 | FMR LLC | $872.44K | 0.00% | +11.1% |
| 7 | TWO SIGMA ADVISERS, LP | $470.13K | 0.00% | +35.8% |
| 8 | PRICE T ROWE ASSOCIATES INC /MD/ | $442.00K | 0.00% | +4.4% |
| Member | Type | Date |
|---|---|---|
| Thomas H. Jr. Kean | Sell | Feb 12, 2025 |
As of the latest SEC 13F filings, VANGUARD GROUP INC is the largest institutional holder of MAGN with a position worth $33.07M, representing 0.00% of their portfolio. In total, 8 institutional investors hold MAGN with a combined value of $80.48M.
Institutional investors hold $80.48M worth of MAGN stock across 8 positions. The largest institutional holder is VANGUARD GROUP INC with $33.07M in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For MAGN, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their MAGN positions.
| 2026-08-05 |
SEC Schedule 13D (activist) and 13G (passive) filings for MAGN. Filed when an investor acquires 5%+ ownership.
Last Close
$12.34
2026-08-21
YTD
-13.5%
60% of 52-week range
