Kirby Corporation
US ˙ NYSE ˙ US4972661064

SecurityKEX / Kirby Corporation
InstitutionCitigroup Inc
Latest Disclosed Ownership20,833 shares
Latest Disclosed Value $ 2,768,289
Citigroup Inc ownership in KEX / Kirby Corporation

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 20,833 shares of Kirby Corporation (US:KEX) valued at $2,768,289 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 44,593 shares of Kirby Corporation. This represents a change in shares of -53.28% during the quarter. The current value of the position is $3,016,618 USD.

Citigroup Inc has a history of taking positions in derivatives of the underlying security (KEX) 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.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

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.

KEX / Kirby Corporation 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 KIRBY COM 497266106 20,833 -23,760 -53.28 2,768 -43.66 0.0006
2026-02-13 2025-12-31 13F KIRBY COM 497266106 44,593 -72 -0.16 4,913 31.82 0.0022
2025-11-10 2025-09-30 13F KIRBY COM 497266106 44,665 16,772 60.13 3,727 17.83 0.0017
2025-08-11 2025-06-30 13F KIRBY COM 497266106 27,893 -25,557 -47.81 3,163 -41.40 0.0016
2025-05-12 2025-03-31 13F KIRBY COM 497266106 53,450 27,773 108.16 5,399 98.75 0.0028
2025-02-12 2024-12-31 13F KIRBY COM 497266106 25,677 7,645 42.40 2,717 23.06 0.0016
2024-11-12 2024-09-30 13F KIRBY COM 497266106 18,032 5,743 46.73 2,208 50.03 0.0013
2024-08-12 2024-06-30 13F KIRBY COM 497266106 12,289 480 4.06 1,471 30.76 0.0009
2024-05-10 2024-03-31 13F KIRBY COM 497266106 11,809 -6,784 -36.49 1,126 -22.89 0.0007
2024-02-09 2023-12-31 13F KIRBY COM 497266106 18,593 7,170 62.77 1,459 54.39 0.0010
2023-12-06 2023-09-30 13F/A-1 KIRBY COM 497266106 11,423 -4,654 -28.95 946 -23.61 0.0007
2023-11-09 2023-09-30 13F KIRBY COM 497266106 11,423 -4,654 946 0.0003
2023-08-10 2023-06-30 13F KIRBY COM 497266106 16,077 -2,828 -14.96 1,237 -6.07 0.0008
2023-05-11 2023-03-31 13F KIRBY COM 497266106 18,905 -1,669 -8.11 1,318 -0.45 0.0009
2023-02-09 2022-12-31 13F KIRBY COM 497266106 20,574 -10,129 -32.99 1,324 -29.06 0.0011
2022-11-10 2022-09-30 13F KIRBY COM 497266106 30,703 10,378 51.06 1,865 50.89 0.0013
2022-08-10 2022-06-30 13F KIRBY COM 497266106 20,325 -9,912 -32.78 1,236 -43.38 0.0009
2022-05-12 2022-03-31 13F KIRBY COM 497266106 30,237 -12,574 -29.37 2,183 -14.19 0.0013
2022-02-10 2021-12-31 13F KIRBY COM 497266106 42,811 -12,542 -22.66 2,544 -4.18 0.0014
2021-11-10 2021-09-30 13F KIRBY COM 497266106 55,353 -10,463 -15.90 2,655 -33.48 0.0016
2021-08-10 2021-06-30 13F KIRBY COM 497266106 65,816 6,630 11.20 3,991 11.86 0.0024
2021-05-13 2021-03-31 13F KIRBY COM 497266106 59,186 28,095 90.36 3,568 121.34 0.0023
2021-02-11 2020-12-31 13F KIRBY COM 497266106 31,091 7,582 32.25 1,612 89.65 0.0010
2020-11-12 2020-09-30 13F KIRBY COM 497266106 23,509 -23,289 -49.76 850 -66.09 0.0006
2020-08-12 2020-06-30 13F KIRBY COM 497266106 46,798 2,446 5.51 2,507 30.03 0.0020
2020-05-12 2020-03-31 13F KIRBY COM 497266106 44,352 26,563 149.32 1,928 21.11 0.0017
2020-02-12 2019-12-31 13F KIRBY COM 497266106 17,789 -8,287 -31.78 1,592 -25.71 0.0012
2019-11-08 2019-09-30 13F KIRBY COM 497266106 26,076 -4,881 -15.77 2,143 -12.42 0.0017
2019-08-12 2019-06-30 13F KIRBY COM 497266106 30,957 20,494 195.87 2,447 210.93 0.0020
2019-05-13 2019-03-31 13F KIRBY COM 497266106 10,463 2,009 23.76 787 38.07 0.0008
2019-02-12 2018-12-31 13F KIRBY COM 497266106 8,454 -1,902 -18.37 570 -33.10 0.0006
2018-11-13 2018-09-30 13F KIRBY COM 497266106 10,356 2,792 36.91 852 34.81 0.0008
2018-08-10 2018-06-30 13F KIRBY COM 497266106 7,564 -1,033 -12.02 632 -4.39 0.0006
2018-05-11 2018-03-31 13F KIRBY COM 497266106 8,597 -319 -3.58 661 10.91 0.0005
2018-02-12 2017-12-31 13F KIRBY COM 497266106 8,916 588 7.06 596 8.56 0.0005
2017-11-13 2017-09-30 13F KIRBY COM 497266106 8,328 629 8.17 549 6.60 0.0004
2017-08-11 2017-06-30 13F KIRBY COM 497266106 7,699 48 0.63 515 -4.45 0.0005
2017-05-12 2017-03-31 13F KIRBY COM 497266106 7,651 -765 -9.09 539 -3.58 0.0005
2017-02-10 2016-12-31 13F KIRBY COM 497266106 8,416 -244 -2.82 559 3.90 0.0005
2016-11-10 2016-09-30 13F KIRBY COM 497266106 8,660 546 6.73 538 6.11 0.0005
2016-08-12 2016-06-30 13F KIRBY COM 497266106 8,114 32 0.40 507 4.11 0.0005
2016-05-13 2016-03-31 13F KIRBY COM 497266106 8,082 173 2.19 487 16.79 0.0005
2016-02-12 2015-12-31 13F KIRBY COM 497266106 7,909 811 11.43 417 -5.01 0.0004
2015-11-13 2015-09-30 13F KIRBY COM 497266106 7,098 -5,090 -41.76 439 -53.05 0.0004
2015-08-13 2015-06-30 13F KIRBY COM 497266106 12,188 -1,214 -9.06 935 -6.97 0.0008
2015-05-14 2015-03-31 13F KIRBY COM 497266106 13,402 4,407 48.99 1,005 38.24 0.0010
2015-02-17 2014-12-31 13F KIRBY COM 497266106 8,995 2,288 34.11 727 -8.21 0.0006
2014-11-14 2014-09-30 13F KIRBY COM 497266106 6,707 -570 -7.83 792 -7.15 0.0007
2014-08-14 2014-06-30 13F KIRBY COM 497266106 7,277 -57 -0.78 853 14.96 0.0008
2014-05-15 2014-03-31 13F KIRBY COM 497266106 7,334 -21,698 -74.74 742 -74.25 0.0008
2014-02-14 2013-12-31 13F KIRBY COM 497266106 29,032 19,687 210.67 2,882 256.68 0.0026
2013-11-14 2013-09-30 13F KIRBY COM 497266106 9,345 -1,689 -15.31 808 -7.97 0.0008
2013-08-14 2013-06-30 13F KIRBY COM 497266106 11,034 11,034 878 0.0009
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
(%)
2020-11-12 2020-09-30 13F KIRBY COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-08-12 2020-06-30 13F KIRBY COM Call 39,100 0.00 2,094 23.18 n/a n/a n/a
2020-05-12 2020-03-31 13F KIRBY COM Call 39,100 1,700 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
(%)
2020-11-12 2020-09-30 13F KIRBY COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-08-12 2020-06-30 13F KIRBY COM Put 39,100 0.00 2,094 23.18 n/a n/a n/a
2020-05-12 2020-03-31 13F KIRBY COM Put 39,100 1,700 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.