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Of the 6 tracked institutions holding IMMX, 3 have a 3-year clone track record — 3 of them beat the S&P. Average holder's clone alpha: +4.5pt. 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 6 tracked institutional investors we monitor, IMMX (IMMIX BIOPHARMA INC) is held with a combined value of $31.90M across 3,968,475 shares. The largest holder is MILLENNIUM MANAGEMENT LLC with a position worth $15.94M. PRICE T ROWE ASSOCIATES INC /MD/ opened a new position in the most recent quarter. 4 funds increased their holdings. 1 fund reduced its position.
Total Institutional Value
$31.90M
Total Shares Held
3,968,475
Institutional Holders
6
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | MILLENNIUM MANAGEMENT LLC | $15.94M | 0.01% | +5.4% |
| 2 | VANGUARD GROUP INC | $5.73M | 0.00% | +50.1% |
| 3 | BlackRock, Inc. | $4.27M | 0.00% | +259.6% |
| 4 | PRICE T ROWE ASSOCIATES INC /MD/ | $3.78M | 0.00% | New |
| 5 | STATE STREET CORP | $1.75M | 0.00% | +97.1% |
| 6 | CITADEL ADVISORS LLC | $429.75K | 0.00% | -37.4% |
As of the latest SEC 13F filings, MILLENNIUM MANAGEMENT LLC is the largest institutional holder of IMMX with a position worth $15.94M, representing 0.01% of their portfolio. In total, 6 institutional investors hold IMMX with a combined value of $31.90M.
In the most recent quarter, 1 fund opened a new position in IMMX. Additionally, 4 increased their holdings and 1 reduced their positions.
Institutional investors hold $31.90M worth of IMMX stock across 6 positions. The largest institutional holder is MILLENNIUM MANAGEMENT LLC with $15.94M 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 IMMX, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their IMMX positions.
Last Close
$8.52
2026-07-24
YTD
+56.9%
65% of 52-week range
