Janux 治療公司
US ˙ NasdaqGM ˙ US47103J1051

SecurityJANX / Janux Therapeutics, Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership11,738 shares
Latest Disclosed Value $ 163,158
Citigroup Inc ownership in JANX / Janux Therapeutics, Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 11,738 shares of Janux Therapeutics, Inc. (US:JANX) valued at $163,158 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 24,218 shares of Janux Therapeutics, Inc.. This represents a change in shares of -51.53% during the quarter. The current value of the position is $161,515 USD.

Citigroup Inc has a history of taking positions in derivatives of the underlying security (JANX) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

JANX / Janux Therapeutics, Inc. Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-11 2026-03-31 13F JANUX THERAPEUTICS COM 47103J105 11,738 -12,480 -51.53 163 -51.20 0.0000
2026-02-13 2025-12-31 13F JANUX THERAPEUTICS COM 47103J105 24,218 18,703 339.13 334 149.25 0.0001
2025-11-10 2025-09-30 13F JANUX THERAPEUTICS COM 47103J105 5,515 -28,175 -83.63 135 -82.78 0.0001
2025-08-11 2025-06-30 13F JANUX THERAPEUTICS COM 47103J105 33,690 -42,592 -55.83 778 -62.21 0.0004
2025-05-12 2025-03-31 13F JANUX THERAPEUTICS COM 47103J105 76,282 -3,264 -4.10 2,060 -51.64 0.0011
2025-02-12 2024-12-31 13F JANUX THERAPEUTICS COM 47103J105 79,546 58,070 270.39 4,259 336.72 0.0025
2024-11-12 2024-09-30 13F JANUX THERAPEUTICS COM 47103J105 21,476 5,881 37.71 976 49.31 0.0006
2024-08-12 2024-06-30 13F JANUX THERAPEUTICS COM 47103J105 15,595 -25,977 -62.49 653 -58.27 0.0004
2024-05-10 2024-03-31 13F JANUX THERAPEUTICS COM 47103J105 41,572 37,745 986.28 1,565 3,717.07 0.0010
2024-02-09 2023-12-31 13F JANUX THERAPEUTICS COM 47103J105 3,827 3,337 681.02 41 925.00 0.0000
2023-12-06 2023-09-30 13F/A-1 JANUX THERAPEUTICS COM 47103J105 490 -5,297 -91.53 5 -94.12 0.0000
2023-11-09 2023-09-30 13F JANUX THERAPEUTICS COM 47103J105 490 -5,297 5 0.0000
2023-08-10 2023-06-30 13F JANUX THERAPEUTICS COM 47103J105 5,787 5,228 935.24 69 1,033.33 0.0000
2023-05-11 2023-03-31 13F JANUX THERAPEUTICS COM 47103J105 559 162 40.81 7 20.00 0.0000
2023-02-09 2022-12-31 13F JANUX THERAPEUTICS COM 47103J105 397 -588 -59.70 5 -61.54 0.0000
2022-11-10 2022-09-30 13F JANUX THERAPEUTICS COM 47103J105 985 -1,166 -54.21 13 -50.00 0.0000
2022-08-10 2022-06-30 13F JANUX THERAPEUTICS COM 47103J105 2,151 301 16.27 26 -3.70 0.0000
2022-05-12 2022-03-31 13F JANUX THERAPEUTICS COM 47103J105 1,850 -2,934 -61.33 27 -71.28 0.0000
2022-02-10 2021-12-31 13F JANUX THERAPEUTICS COM 47103J105 4,784 3,029 172.59 94 147.37 0.0001
2021-11-10 2021-09-30 13F JANUX THERAPEUTICS COM 47103J105 1,755 -84,940 -97.98 38 -98.24 0.0000
2021-08-10 2021-06-30 13F JANUX THERAPEUTICS COM 47103J105 86,695 86,695 2,163 0.0013
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-11-10 2025-09-30 13F JANUX THERAPEUTICS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-11 2025-06-30 13F JANUX THERAPEUTICS COM Call 30,000 100.00 693 71.11 n/a n/a n/a
2025-05-12 2025-03-31 13F JANUX THERAPEUTICS COM Call 15,000 -50.00 405 -74.78 n/a n/a n/a
2025-02-12 2024-12-31 13F JANUX THERAPEUTICS COM Call 30,000 1,606 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-11-10 2025-09-30 13F JANUX THERAPEUTICS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-11 2025-06-30 13F JANUX THERAPEUTICS COM Put 30,000 100.00 693 71.11 n/a n/a n/a
2025-05-12 2025-03-31 13F JANUX THERAPEUTICS COM Put 15,000 -50.00 405 -74.78 n/a n/a n/a
2025-02-12 2024-12-31 13F JANUX THERAPEUTICS COM Put 30,000 1,606 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.