Citigroup Inc.
MX ˙ BMV ˙ US1729674242
SecurityMX:C / Citigroup Inc.
InstitutionBluefin Capital Management, Llc
Latest Disclosed Ownership17,200 shares
Latest Disclosed Value $ 1,950,652
Bluefin Capital Management, Llc ownership in C / Citigroup Inc.

On May 15, 2026 - Bluefin Capital Management, Llc filed a 13F-HR form disclosing ownership of 17,200 shares of Citigroup Inc. (MX:C) valued at $1,950,652 USD as of March 31, 2026.

Bluefin Capital Management, Llc has a history of taking positions in derivatives of the underlying security (C) 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.

MX:C / Citigroup 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)
2026-05-15 2026-03-31 13F CITIGROUP COM NEW 172967424 17,200 1,951 -4.88 1.1678
2026-04-29 2025-09-30 13F CITIGROUP COM NEW 172967424 2,050 432.47 0.6561
2025-08-14 2025-06-30 13F CITIGROUP COM NEW 172967424 4,530 -2,070 -31.36 386 -17.74 0.2907
2025-05-21 2025-03-31 13F CITIGROUP COM NEW 172967424 6,600 6,600 469 0.3382
2024-09-10 2024-06-30 13F CITIGROUP COM NEW 172967424 0 -5,691 -100.00 0 -100.00
2024-05-20 2024-03-31 13F/A-1 CITIGROUP COM NEW 172967424 5,691 -1,397,109 -99.59 360 -99.50 0.0558
2024-05-15 2024-03-31 13F CITIGROUP COM NEW 172967424 5,691 -1,397,109 360 0.0560
2024-02-16 2023-12-31 13F CITIGROUP COM NEW 172967424 1,402,800 1,395,227 18,423.70 72,272 23,138.59 6.2686
2023-11-14 2023-09-30 13F CITIGROUP COM NEW 172967424 7,573 -6,250 -45.21 311 -51.10 0.0263
2023-09-11 2023-06-30 13F/A-1 CITIGROUP COM NEW 172967424 13,823 636 -19.60 0.1215
2023-08-14 2023-06-30 13F CITIGROUP COM NEW 172967424 13,823 636 0.1249
2023-05-15 2023-03-31 13F CITIGROUP COM NEW 172967424 791 -93.63 0.0984
2023-02-14 2022-12-31 13F CITIGROUP COM NEW 172967424 274,394 107,119 64.04 12,411 78.02 1.8444
2022-11-14 2022-09-30 13F CITIGROUP COM NEW 172967424 167,275 148,214 777.58 6,971 676.28 0.6302
2022-08-15 2022-06-30 13F CITIGROUP COM NEW 172967424 19,061 -34,285 -64.27 898 -68.47 0.0993
2022-05-16 2022-03-31 13F CITIGROUP COM NEW 172967424 53,346 -255,339 -82.72 2,848 -84.72 0.2598
2022-02-14 2021-12-31 13F CITIGROUP COM NEW 172967424 308,685 232,569 305.55 18,641 248.95 1.3013
2021-11-15 2021-09-30 13F CITIGROUP COM NEW 172967424 76,116 -153,559 -66.86 5,342 -67.13 0.5298
2021-08-18 2021-06-30 13F/A-1 CITIGROUP COM NEW 172967424 229,675 202,720 752.07 16,250 728.66 1.0330
2021-08-16 2021-06-30 13F CITIGROUP COM NEW 172967424 229,675 202,720 16,250 1.0330
2021-05-17 2021-03-31 13F CITIGROUP COM NEW 172967424 26,955 -36,511 -57.53 1,961 -49.90 0.0915
2021-02-10 2020-12-31 13F CITIGROUP COM NEW 172967424 63,466 3,914 59.36 0.2283
2020-11-16 2020-09-30 13F CITIGROUP COM NEW 172967424 2,456 0.1566
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
(%)
2024-02-16 2023-12-31 13F CITIGROUP COM NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-11-14 2023-09-30 13F CITIGROUP COM NEW Call 37,300 0.00 77 -56.32 n/a n/a n/a
2023-09-11 2023-06-30 13F/A CITIGROUP COM NEW Call 37,300 174 -29.84 n/a n/a n/a
2023-08-14 2023-06-30 13F CITIGROUP COM NEW Call 37,300 174 n/a n/a n/a
2023-05-15 2023-03-31 13F CITIGROUP COM NEW Call 249 -17.61 n/a n/a n/a
2023-02-14 2022-12-31 13F CITIGROUP COM NEW Call 1,015,200 329.08 302 238.20 n/a n/a n/a
2022-11-14 2022-09-30 13F CITIGROUP COM NEW Call 236,600 -50.85 89 -84.16 n/a n/a n/a
2022-08-15 2022-06-30 13F CITIGROUP COM NEW Call 481,400 92.02 562 629.87 n/a n/a n/a
2022-05-16 2022-03-31 13F CITIGROUP COM NEW Call 250,700 74.34 77 413.33 n/a n/a n/a
2022-02-14 2021-12-31 13F CITIGROUP COM NEW Call 143,800 -34.87 15 -98.26 n/a n/a n/a
2021-11-15 2021-09-30 13F CITIGROUP COM NEW Call 220,800 27.34 862 333.17 n/a n/a n/a
2021-08-18 2021-06-30 13F/A CITIGROUP COM NEW Call 173,400 -37.63 199 -88.95 n/a n/a n/a
2021-08-16 2021-06-30 13F CITIGROUP COM NEW Call 173,400 199 n/a n/a n/a
2021-05-17 2021-03-31 13F CITIGROUP COM NEW Call 278,000 100.87 1,801 103.27 n/a n/a n/a
2021-02-10 2020-12-31 13F CITIGROUP COM NEW Call 138,400 886 7,954.55 n/a n/a n/a
2020-11-16 2020-09-30 13F CITIGROUP COM NEW Call 11 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
(%)
2024-05-20 2024-03-31 13F/A CITIGROUP COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-05-15 2024-03-31 13F CITIGROUP COM NEW Put 0 0 n/a n/a n/a
2024-02-16 2023-12-31 13F CITIGROUP COM NEW Put 1,400,000 5,183.02 125 303.23 n/a n/a n/a
2023-11-14 2023-09-30 13F CITIGROUP COM NEW Put 26,500 0.00 32 24.00 n/a n/a n/a
2023-09-11 2023-06-30 13F/A CITIGROUP COM NEW Put 26,500 25 -51.92 n/a n/a n/a
2023-08-14 2023-06-30 13F CITIGROUP COM NEW Put 26,500 25 n/a n/a n/a
2023-05-15 2023-03-31 13F CITIGROUP COM NEW Put 52 -97.38 n/a n/a n/a
2023-02-14 2022-12-31 13F CITIGROUP COM NEW Put 809,200 371.84 1,983 37.26 n/a n/a n/a
2022-11-14 2022-09-30 13F CITIGROUP COM NEW Put 171,500 -1.94 1,444 17.49 n/a n/a n/a
2022-08-15 2022-06-30 13F CITIGROUP COM NEW Put 174,900 -48.33 1,229 -22.46 n/a n/a n/a
2022-05-16 2022-03-31 13F CITIGROUP COM NEW Put 338,500 -37.82 1,585 44.88 n/a n/a n/a
2022-02-14 2021-12-31 13F CITIGROUP COM NEW Put 544,400 80.21 1,094 85.42 n/a n/a n/a
2021-11-15 2021-09-30 13F CITIGROUP COM NEW Put 302,100 5.63 590 26.34 n/a n/a n/a
2021-08-18 2021-06-30 13F/A CITIGROUP COM NEW Put 286,000 10.21 467 186.50 n/a n/a n/a
2021-08-16 2021-06-30 13F CITIGROUP COM NEW Put 286,000 467 n/a n/a n/a
2021-05-17 2021-03-31 13F CITIGROUP COM NEW Put 259,500 10.43 163 13.19 n/a n/a n/a
2021-02-10 2020-12-31 13F CITIGROUP COM NEW Put 235,000 144 -88.66 n/a n/a n/a
2020-11-16 2020-09-30 13F CITIGROUP COM NEW Put 1,270 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.