Citigroup Inc.
MX ˙ BMV ˙ US1729674242
SecurityMX:C / Citigroup Inc.
InstitutionAdvent Capital Management /de/
Latest Disclosed Ownership25,000 shares
Latest Disclosed Value $ 2,835,250
Advent Capital Management /de/ ownership in C / Citigroup Inc.

On May 7, 2026 - Advent Capital Management /de/ filed a 13F-HR form disclosing ownership of 25,000 shares of Citigroup Inc. (MX:C) valued at $2,835,250 USD as of March 31, 2026. The entity filed a previous 13F-HR on August 13, 2025 disclosing 0 shares of Citigroup Inc..

Advent Capital Management /de/ 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)
2026-05-07 2026-03-31 13F Citigroup COM 172967424 25,000 25,000 2,835 0.0782
2025-08-13 2025-06-30 13F Citigroup COM 172967424 0 -30,000 -100.00 0 -100.00
2025-05-12 2025-03-31 13F Citigroup COM 172967424 30,000 -10,000 -25.00 2,130 -24.37 0.0467
2025-02-13 2024-12-31 13F Citigroup COM 172967424 40,000 40,000 2,816 0.0650
2020-05-15 2020-03-31 13F CITIGROUP COM 172967424 0 -40,000 -100.00 0 -100.00
2020-02-14 2019-12-31 13F CITIGROUP COM 172967424 40,000 40,000 3,196 0.0619
2019-02-14 2018-12-31 13F CITIGROUP COM 172967424 0 -88 -100.00 0 -100.00
2018-11-14 2018-09-30 13F CITIGROUP COM 172967424 88 88 6 0.0001
2018-08-14 2018-06-30 13F CITIGROUP COM 172967424 0 -11,000 -100.00 0 -100.00
2018-05-11 2018-03-31 13F CITIGROUP COM 172967424 11,000 11,000 743 0.0146
2016-05-13 2016-03-31 13F Citigroup COM 172967424 0 -100,000 -100.00 0 -100.00
2016-02-16 2015-12-31 13F Citigroup COM 172967424 100,000 14,000 16.28 5,298 24.19 0.0815
2015-11-13 2015-09-30 13F Citigroup COM 172967424 86,000 34,000 65.38 4,266 48.54 0.0652
2015-07-24 2015-06-30 13F Citigroup COM 172967424 52,000 -30,800 -37.20 2,872 -32.68 0.0413
2015-05-13 2015-03-31 13F Citigroup COM 172967424 82,800 78,714 1,926.43 4,266 1,830.32 0.0617
2015-02-26 2014-12-31 13F Citigroup COM 172967424 4,086 -182,114 -97.81 221 -97.71 0.0032
2014-11-14 2014-09-30 13F Citigroup COM 172967424 186,200 0 0.00 9,649 -3.10 0.1488
2014-09-25 2014-06-30 13F/A-1 Citigroup COM 172967424 186,200 186,200 9,958 0.1485
2014-08-14 2014-06-30 13F Citigroup COM 172967424 130,000 6,123
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
(%)
2016-02-16 2015-12-31 13F Citigroup OPT Call 0 0 n/a n/a n/a
2015-11-13 2015-09-30 13F Citigroup OPT Call 0 -100.00 0 -100.00 n/a n/a n/a
2015-07-24 2015-06-30 13F Citigroup OPT Call 2,000 344.44 23 2,200.00 n/a n/a n/a
2015-05-13 2015-03-31 13F Citigroup OPT Call 450 -32.13 1 -88.89 n/a n/a n/a
2015-02-26 2014-12-31 13F Citigroup OPT Call 663 -31.15 9 -43.75 n/a n/a n/a
2014-11-14 2014-09-30 13F Citigroup OPT Call 963 -3.70 16 -69.81 n/a n/a n/a
2014-09-25 2014-06-30 13F/A Citigroup OPT Call 1,000 53 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
(%)
2015-07-24 2015-06-30 13F Citigroup OPT Put 0 -100.00 0 -100.00 n/a n/a n/a
2015-05-13 2015-03-31 13F Citigroup OPT Put 270 7 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.