Kirby Corporation (KEX) Ownership

NYSE: KEXTop holders, insider trades and short interest.

KEX ownership summary

as of October 18, 2026
Institutions
102.6%
of shares outstanding
Insiders
0.79%
of shares outstanding
Shares outstanding
52.8M
Float
52.4M
shares available to trade
Short interest
5.21%
2.2M shares short
Days to cover
4.89
short interest up 22.6% vs prior month
  • Institutions 102.55%
  • Insiders 0.79%

KEX top institutional holders

20 largest
Kirby Corporation top institutional holders
#Holder% of sharesSharesValueChangeReported
1BlackRock Inc10.21%5.4M$735.8M+115,753 (+2.2%)June 30, 2026
2Dimensional Fund Advisors, Inc.5.23%2.8M$376.5M+142,347 (+5.4%)June 30, 2026
3Vanguard Portfolio Management, LLC5.09%2.7M$366.9M+28,526 (+1.1%)June 30, 2026
4The Goldman Sachs Group Inc5.03%2.7M$362.4M−171,964 (−6.1%)June 30, 2026
5Morgan Stanley - Brokerage Accounts4.61%2.4M$331.9M−237,505 (−8.9%)June 30, 2026
6Vanguard Capital Management, LLC4.58%2.4M$329.6M+8,203 (+0.3%)June 30, 2026
7State Street Corp3.12%1.6M$224.9M+9,312 (+0.6%)June 30, 2026
8First Trust Advisors L.P.3.07%1.6M$220.9M+214,151 (+15.2%)June 30, 2026
9King Luther Capital Management Corp2.76%1.5M$198.9M−102,871 (−6.6%)June 30, 2026
10Neuberger Berman Group LLC2.39%1.3M$172.2M−473,160 (−27.3%)June 30, 2026
11Geode Capital Management, LLC2.25%1.2M$162.4M+168,440 (+16.5%)June 30, 2026
12Wellington Management Company LLP2.18%1.2M$156.9M−425,386 (−27.0%)June 30, 2026
13American Century Companies Inc1.77%936K$127.7M+7,408 (+0.8%)June 30, 2026
14FMR Inc1.74%918K$125.2M+123,111 (+15.5%)June 30, 2026
15AQR Capital Management LLC1.67%884K$120.6M+349,588 (+65.4%)June 30, 2026
16AllianceBernstein L.P.1.67%882K$120.3M−234,100 (−21.0%)June 30, 2026
17Jennison Associates LLC1.64%865K$118.0M+107,068 (+14.1%)June 30, 2026
18Congress Asset Management Company, LLP1.33%704K$96.0M+78,186 (+12.5%)June 30, 2026
19NORGES BANK1.30%684K$93.3M−54,467 (−7.4%)June 30, 2026
20Charles Schwab Investment Management Inc1.28%677K$92.4M−20,563 (−2.9%)June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 12 holders added 1.4M shares and 8 cut 1.7M.

KEX top mutual fund and ETF holders

20 largest
Kirby Corporation top fund holders
#Holder% of sharesSharesValueChangeReported
1iShares Core S&P Mid-Cap ETF3.56%1.9M$256.6M−672 (−0.0%)September 30, 2026
2Vanguard MStar Total Stk Mkt Idx Invest3.22%1.7M$232.2M−1,768 (−0.1%)August 31, 2026
3Eaton Vance Atlanta Capital SMID-Cap I2.28%1.2M$164.4M−8,000 (−0.7%)August 31, 2026
4Vanguard Small Cap Index2.25%1.2M$162.2M−41,937 (−3.4%)September 30, 2026
5Avantis US Small Cap Value ETF1.88%992K$135.3M—September 30, 2026
6First Trust RBA Amer Indl RenaisTM ETF1.77%937K$127.8M+541 (+0.1%)September 30, 2026
7Vanguard Explorer Inv1.47%776K$105.9M−377,353 (−32.7%)June 30, 2026
8Vanguard MStar Small Cap Value Index1.46%773K$105.5M−8,279 (−1.1%)September 30, 2026
9DFA US Small Cap Value I1.33%703K$95.9M—August 31, 2026
10Neuberger Genesis Inv1.20%632K$86.2M−58,591 (−8.5%)September 30, 2026
11GS Global CORE Eq I Inc USD Snap1.04%548K$74.8M+548,199 (0.0%)July 31, 2026
12State Street® SPDR® S&P MIDCAP 400® ETF0.74%390K$53.3M−852 (−0.2%)September 30, 2026
13Congress Small Cap Growth Institutional0.72%380K$51.8M+5,000 (+1.3%)September 30, 2026
14DFA US Targeted Value I0.61%322K$43.9M+23,654 (+7.9%)August 31, 2026
15Goldman Sachs US Tax-Managed Eq Instl0.61%321K$43.8M—June 30, 2026
16Vanguard Strategic Equity Inv0.60%316K$43.2M+20,053 (+6.8%)June 30, 2026
17DWS Core Equity S0.58%306K$41.8M−1,540 (−0.5%)August 31, 2026
18Strategic Advisers Fidelity US TtlStk0.54%285K$38.8M+5,200 (+1.9%)August 31, 2026
19Fidelity Advisor Stock Selec Mid Cp I0.53%281K$38.4M+2,700 (+1.0%)August 31, 2026
20State Street SPDR Port S&P 400 Md CpETF0.53%279K$38.1M−392 (−0.1%)September 30, 2026

Funds report holdings monthly or quarterly; dates differ by fund.

KEX insider transactions

latest 13
Kirby Corporation insider transactions
DateNameTransactionPriceSharesValue
2026-03-02Christian G O'neilSell$132.3411,287$1.5M
2026-03-02Raj KumarSell$132.703,000$398,100
2026-02-24David W GrzebinskiSell$130.0534,152$4.4M
2026-02-20Amy D HustedSell$129.3311,667$1.5M
2026-02-10Scott P MillerSell$120.683,960$477,893
2026-02-09William Matthew WoodruffSell$121.882,000$243,760
2026-02-04Ronald A DraggSell$122.005,429$662,338
2025-12-22Christian G O'neilSell$111.6811,145$1.2M
2025-12-01Kurt A NiemietzSell$114.121,500$171,180
2025-11-21Amy D HustedSell$107.4210,413$1.1M
2025-11-21David W GrzebinskiSell$107.4129,451$3.2M
2025-11-12Ronald A DraggSell$110.292,715$299,437
2025-11-10Richard Ross StewartSell$107.831,923$207,357

Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.

KEX shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns KEX

Institutional investors own 102.6% of Kirby's shares and insiders 0.79%. The largest holder is BlackRock Inc with 10.21% of the shares (5.4M), as of June 30, 2026. Among the top 20 institutions, 12 added shares and 8 reduced their stake in the latest filings. Short interest is 5.21% of the float, or 4.89 days of average trading volume. The share count fell 5.1% since 2014.

Related: KEX analyst forecast, KEX key metrics. See the KEX stock overview for the latest quote and news.

KEX ownership FAQ

Who owns the most Kirby stock?

The largest shareholders of Kirby are BlackRock Inc (10.21%), Dimensional Fund Advisors, Inc. (5.23%), Vanguard Portfolio Management, LLC (5.09%), The Goldman Sachs Group Inc (5.03%), Morgan Stanley - Brokerage Accounts (4.61%).

What percentage of Kirby is owned by institutions?

Institutions hold 102.6% of Kirby's shares outstanding; insiders hold 0.79%.

Which funds own Kirby?

The largest fund holders of Kirby are iShares Core S&P Mid-Cap ETF (3.56%), Vanguard MStar Total Stk Mkt Idx Invest (3.22%), Eaton Vance Atlanta Capital SMID-Cap I (2.28%), Vanguard Small Cap Index (2.25%), Avantis US Small Cap Value ETF (1.88%).

What is Kirby's short interest?

2.2M shares of Kirby were sold short, 5.21% of the float; at the average daily volume it would take 4.89 days to cover.

Are insiders buying or selling Kirby?

Of the latest 13 reported insider transactions in Kirby (since November 10, 2025), 0 were purchases and 13 were sales.

How many shares of Kirby are outstanding?

Kirby has 52.8M shares outstanding, of which 52.4M are in the public float.

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