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Of the 10 tracked institutions holding JANX, 4 have a 3-year clone track record — 4 of them beat the S&P. Average holder's clone alpha: +6.3pt. It's a gauge of who owns the name, not just how many.
Among the 10 tracked institutional investors we monitor, JANX (JANUX THERAPEUTICS INC) is held with a combined value of $390.03M across 28,080,630 shares. The largest holder is RA CAPITAL MANAGEMENT, L.P. with a position worth $155.54M (1.65% of their portfolio). 4 funds increased their holdings. 5 funds reduced their position.
Total Institutional Value
$390.03M
Total Shares Held
28,080,630
Institutional Holders
10
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | RA CAPITAL MANAGEMENT, L.P. | $155.54M | 1.65% | - |
| 2 | BlackRock, Inc. | $75.52M | 0.00% | +33.2% |
| 3 | VANGUARD GROUP INC | $40.11M | 0.00% | +20.2% |
| 4 | FMR LLC | $35.25M | 0.00% | -27.8% |
| 5 | STATE STREET CORP | $34.25M | 0.00% | -36.1% |
| 6 | WELLINGTON MANAGEMENT GROUP LLP | $22.21M | 0.00% | -0.8% |
| 7 | Point72 Asset Management, L.P. | $16.07M | 0.03% | +20.2% |
| 8 | MILLENNIUM MANAGEMENT LLC | $5.38M | 0.00% | +33.5% |
| 9 | CITADEL ADVISORS LLC | $4.90M | 0.00% | -68.1% |
| 10 | PRICE T ROWE ASSOCIATES INC /MD/ | $818.00K | 0.00% | -92.1% |
As of the latest SEC 13F filings, RA CAPITAL MANAGEMENT, L.P. is the largest institutional holder of JANX with a position worth $155.54M, representing 1.65% of their portfolio. In total, 10 institutional investors hold JANX with a combined value of $390.03M.
Institutional investors hold $390.03M worth of JANX stock across 10 positions. The largest institutional holder is RA CAPITAL MANAGEMENT, L.P. with $155.54M 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 JANX, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their JANX positions.
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 →
Last Close
$15.00
2026-07-28
YTD
+9.9%
13% of 52-week range
