Latest Period
Q1 2026
Security Snapshot
Janux Therapeutics, Inc. - Common Stock (JANX) Institutional Ownership
CUSIP: 47103J105
13F Institutional Holders and Ownership History from Q2 2021 to Q1 2026
Institutions Reporting
187
Shares (Excl. Options)
59,586,401
Price
$13.90
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- Security type / class
- Equity / Common Stock
- Symbol
- JANX on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 59,586,401
- Total 13F value
- $827,823,279
- Portfolio coverage rank
- 0%
- Share change
- -3,279,462
- Value change
- -$45,198,815
- Number of holders
- 187
- Shares outstanding
- 60,817,522
- SEC-reported price per share
- $14.61
- Insider filing price
- $14.61
Latest holder snapshot
5 signals
Issuer context
Who this page is about.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- JANX - Janux Therapeutics, Inc. - Common Stock is tracked under CUSIP 47103J105.
- 187 institutions reported positions in Q1 2026.
- 9 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 172 to 187 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $857,685,756 to $827,823,279.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 187 institutions filings for Q1 2026.
Security key
47103J105
Latest holder period
Q1 2026
13F holders
187
13D/G owners
9
CIK / CUSIP context first
Open Q1 2026 holders
JANX full holder history
Janux Therapeutics, Inc. SEC filings
Janux Therapeutics, Inc. company facts
Janux Therapeutics, Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 47103J105:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
9
Security
JANX
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. | 20% | $383,922,060 | 11,971,377 | RA Capital Management, L.P. | 06 Mar 2025 | |||
| JANUS HENDERSON GROUP PLC | 6.9% | -22% | $58,330,085 | -$16,041,212 | 4,196,409 | -22% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| BlackRock, Inc. | 5.7% | $77,284,838 | 3,345,664 | BlackRock, Inc. | 30 Jun 2025 | |||
| Prosight Management, LP | 5.3% | $43,569,636 | 3,157,220 | W. Lawrence Hawkins | 03 Feb 2026 | |||
| Point72 Asset Management, L.P. | 5% | $42,669,650 | 3,069,759 | Point72 Asset Management, L.P. | 28 Apr 2026 | |||
| Paradigm Biocapital Advisors LP | 4.9% | -18% | $73,444,489 | -$14,982,559 | 2,920,258 | -17% | Paradigm BioCapital Advisors LP | 30 Jun 2025 |
| FMR LLC | 4.2% | -27% | $35,246,558 | -$13,575,574 | 2,535,724 | -28% | FMR LLC | 31 Mar 2026 |
| Adage Capital Management, L.P. | 4.3% | -21% | $63,503,750 | -$13,499,262 | 2,525,000 | -18% | Adage Capital Management, L.P. | 30 Jun 2025 |
| STATE STREET CORP | 4.1% | -38% | $34,249,836 | -$19,320,083 | 2,464,017 | -36% | STATE STREET CORPORATION | 31 Mar 2026 |
As of 31 Mar 2026, 187 institutional investors reported holding 59,586,401 shares of Janux Therapeutics, Inc. - Common Stock (JANX). This represents 98% of the company’s total 60,817,522 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
81%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. | 18% | 11,189,693 | 0% | 1.6% | $155,536,733 |
| BlackRock, Inc. | 8.9% | 5,433,233 | +33% | 0% | $75,521,936 |
| JANUS HENDERSON GROUP PLC | 6.9% | 4,196,409 | -22% | 0.03% | $58,279,971 |
| Prosight Management, LP | 5.8% | 3,550,000 | +48% | 8.1% | $49,345,000 |
| FMR LLC | 4.2% | 2,535,724 | -28% | 0% | $35,246,559 |
| STATE STREET CORP | 4.1% | 2,464,017 | -36% | 0% | $34,249,836 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3% | 1,811,365 | 0% | 0% | $25,177,974 |
| TCG Crossover Management, LLC | 2.9% | 1,789,617 | 0% | 0.71% | $24,875,676 |
| Alyeska Investment Group, L.P. | 2.6% | 1,601,089 | +23% | 0.06% | $22,255,137 |
| WELLINGTON MANAGEMENT GROUP LLP | 2.6% | 1,597,650 | -0.78% | 0% | $22,207,335 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2.1% | 1,290,256 | 0% | 0% | $17,934,558 |
| Deep Track Capital, LP | 2% | 1,187,290 | +1225% | 0.34% | $16,503,331 |
| Point72 Asset Management, L.P. | 1.9% | 1,156,140 | +20% | 0.03% | $16,070,346 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.9% | 1,146,724 | +3% | 0% | $15,942,850 |
| Balyasny Asset Management L.P. | 1.8% | 1,090,147 | +23% | 0.03% | $15,153,043 |
| Logos Global Management LP | 1.6% | 1,000,000 | 0% | 0.72% | $13,900,000 |
| ORBIMED ADVISORS LLC | 1.6% | 983,600 | -50% | 0.31% | $13,672,040 |
| Nantahala Capital Management, LLC | 1.3% | 809,914 | 0.7% | $11,257,805 | |
| BANK OF AMERICA CORP /DE/ | 1.3% | 801,646 | +8.6% | 0% | $11,142,879 |
| Irenic Capital Management LP | 1.3% | 765,804 | 0.97% | $10,644,676 | |
| Woodline Partners LP | 1.2% | 738,032 | -28% | 0.04% | $10,258,645 |
| MORGAN STANLEY | 1.2% | 703,940 | +14% | 0% | $9,784,767 |
| Squarepoint Ops LLC | 0.99% | 604,000 | +54% | 0.02% | $8,395,600 |
| GOLDMAN SACHS GROUP INC | 0.99% | 602,013 | -44% | 0% | $8,367,981 |
| TANG CAPITAL MANAGEMENT LLC | 0.82% | 500,000 | 0.35% | $6,950,000 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
20
Latest
Q1 2026
Rows shown
1-20 of 20
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 59,586,401 | $827,823,279 | -$45,198,815 | $13.90 | 187 |
| 2025 Q4 | 62,149,256 | $857,685,756 | -$103,940,615 | $13.80 | 172 |
| 2025 Q3 | 65,065,945 | $1,590,036,358 | -$3,819,977 | $24.44 | 170 |
| 2025 Q2 | 65,389,958 | $1,510,522,459 | -$28,053,981 | $23.10 | 169 |
| 2025 Q1 | 66,482,175 | $1,805,570,973 | -$17,647,630 | $27.00 | 179 |
| 2024 Q4 | 64,089,510 | $3,430,809,553 | +$1,001,839,547 | $53.54 | 213 |
| 2024 Q3 | 45,621,730 | $2,072,353,785 | +$42,332,014 | $45.43 | 158 |
| 2024 Q2 | 44,723,442 | $1,873,142,325 | +$107,659,314 | $41.89 | 153 |
| 2024 Q1 | 42,327,541 | $1,593,608,078 | +$334,250,630 | $37.65 | 118 |
| 2023 Q4 | 33,501,695 | $359,539,970 | -$17,204,195 | $10.73 | 64 |
| 2023 Q3 | 35,112,124 | $353,984,587 | +$45,518,472 | $10.08 | 57 |
| 2023 Q2 | 30,508,831 | $362,117,070 | -$408,523 | $11.87 | 54 |
| 2023 Q1 | 30,541,873 | $369,527,936 | +$18,629,245 | $12.10 | 48 |
| 2022 Q4 | 28,954,042 | $381,308,644 | -$7,758,264 | $13.17 | 49 |
| 2022 Q3 | 29,548,436 | $400,093,845 | +$8,918,649 | $13.54 | 45 |
| 2022 Q2 | 28,911,820 | $352,963,471 | +$6,297,905 | $12.21 | 43 |
| 2022 Q1 | 28,388,419 | $407,113,023 | +$11,406,319 | $14.34 | 46 |
| 2021 Q4 | 27,496,946 | $541,627,745 | +$19,103,067 | $19.73 | 46 |
| 2021 Q3 | 26,499,088 | $571,208,440 | +$35,499,490 | $21.63 | 44 |
| 2021 Q2 | 24,743,225 | $614,460,000 | +$614,460,000 | $24.95 | 29 |