Ardmore Shipping Corporation (ASC) Ownership

NYSE: ASCTop holders, insider trades and short interest.

ASC ownership summary

as of October 18, 2026
Institutions
85.7%
of shares outstanding
Insiders
9.83%
of shares outstanding
Shares outstanding
40.9M
Float
34.5M
shares available to trade
Short interest
6.26%
2.5M shares short
Days to cover
4.17
short interest up 9.4% vs prior month
  • Institutions 85.73%
  • Insiders 9.83%
  • Other investors 4.44%

ASC top institutional holders

20 largest
Ardmore Shipping Corporation top institutional holders
#Holder% of sharesSharesValueChangeReported
1BlackRock Inc9.41%3.8M$72.8M+665,587 (+20.9%)June 30, 2026
2Dimensional Fund Advisors, Inc.6.11%2.5M$47.3M+45,383 (+1.9%)June 30, 2026
3Wellington Management Company LLP4.85%2.0M$37.5M+116,154 (+6.2%)June 30, 2026
4American Century Companies Inc4.25%1.7M$32.9M+28,971 (+1.7%)June 30, 2026
5Renaissance Technologies Corp3.87%1.6M$29.9M−156,207 (−9.0%)June 30, 2026
6Acadian Asset Management LLC3.68%1.5M$28.4M+125,528 (+9.1%)June 30, 2026
7Private Management Group Inc2.62%1.1M$20.2M−145,463 (−12.0%)June 30, 2026
8Nuveen, LLC2.60%1.1M$20.1M−428,193 (−28.7%)June 30, 2026
9Flat Footed LLC2.32%949K$18.0M−55,831 (−5.6%)June 30, 2026
10RBF LLC2.21%902K$17.1M—June 30, 2026
11Aristotle Capital Boston, LLC2.17%887K$16.8M−51,183 (−5.5%)June 30, 2026
12TICINO WEALTH1.77%723K$13.7M+7,925 (+1.1%)September 30, 2026
13Qube Research & Technologies1.72%703K$13.3M−205,516 (−22.6%)June 30, 2026
14Hartree Partners, LP1.65%673K$12.7M+157,899 (+30.7%)June 30, 2026
15Geode Capital Management, LLC1.59%651K$12.3M+184,935 (+39.7%)June 30, 2026
16State Street Corp1.59%648K$12.3M+24,468 (+3.9%)June 30, 2026
17Citadel Advisors Llc1.56%636K$12.0M−181,129 (−22.2%)June 30, 2026
18Morgan Stanley - Brokerage Accounts1.50%614K$11.6M−138,595 (−18.4%)June 30, 2026
19Jane Street Group LLC1.46%598K$11.3M+405,198 (+210.2%)June 30, 2026
20CastleKnight Management LP1.39%567K$10.7M+272,580 (+92.6%)June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 11 holders added 2.0M shares and 8 cut 1.4M.

ASC top mutual fund and ETF holders

20 largest
Ardmore Shipping Corporation top fund holders
#Holder% of sharesSharesValueChangeReported
1Avantis US Small Cap Value ETF3.81%1.6M$29.5M+768 (+0.0%)September 30, 2026
2iShares Russell 2000 ETF2.27%928K$17.6M−10,688 (−1.1%)September 30, 2026
3DFA US Small Cap Value I1.34%549K$10.4M—August 31, 2026
4Nuveen Quant Small Cap Equity R61.18%481K$9.1M+187,400 (+63.8%)August 31, 2026
5BlackRock Advantage Small Cap Core Instl1.11%454K$8.6M—August 31, 2026
6Fidelity Small Cap Index0.96%394K$7.5M+3,987 (+1.0%)July 31, 2026
7iShares Russell 2000 Value ETF0.82%336K$6.4M+510 (+0.2%)September 30, 2026
8DFA US Targeted Value I0.78%319K$6.0M—August 31, 2026
9Nuveen Quant Small/Mid Cap Eq R60.73%298K$5.6M—August 31, 2026
10CREF Total Global Stock Account R30.71%292K$5.5M−7,186 (−2.4%)August 31, 2026
11Dimensional US Targeted Value ETF0.68%277K$5.2M+24 (+0.0%)September 30, 2026
12Strategic Advisers U.S. Total Stock0.65%264K$5.0M+157,470 (+147.2%)August 31, 2026
13Federated Hermes MDT Small Cap Core IS0.60%245K$4.6M—June 30, 2026
14Dimensional US Small Cap Value ETF0.59%243K$4.6M—September 24, 2026
15Fidelity Enhanced Small Cap Core ETF0.58%238K$4.5M+498 (+0.2%)September 30, 2026
16EA Bridgeway Omni Small-Cap Value ETF0.55%226K$4.3M—September 30, 2026
17Vanguard Russell 2000 ETF0.51%208K$3.9M+2,678 (+1.3%)September 30, 2026
18Schwab Fundamental U.S. Small CompanyETF0.48%194K$3.7M+273 (+0.1%)September 30, 2026
19DFA US Small Cap I0.44%181K$3.4M—August 31, 2026
20BSF Systematic US Eq Abs Ret A2 USD0.39%158K$3.0M+9,181 (+6.2%)December 31, 2025

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

ASC shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns ASC

Institutional investors own 85.7% of Ardmore Shipping's shares and insiders 9.83%. The largest holder is BlackRock Inc with 9.41% of the shares (3.8M), as of June 30, 2026. Among the top 20 institutions, 11 added shares and 8 reduced their stake in the latest filings. Short interest is 6.26% of the float, or 4.17 days of average trading volume. The share count rose 56.9% since 2014.

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

ASC ownership FAQ

Who owns the most Ardmore Shipping stock?

The largest shareholders of Ardmore Shipping are BlackRock Inc (9.41%), Dimensional Fund Advisors, Inc. (6.11%), Wellington Management Company LLP (4.85%), American Century Companies Inc (4.25%), Renaissance Technologies Corp (3.87%).

What percentage of Ardmore Shipping is owned by institutions?

Institutions hold 85.7% of Ardmore Shipping's shares outstanding; insiders hold 9.83%.

Which funds own Ardmore Shipping?

The largest fund holders of Ardmore Shipping are Avantis US Small Cap Value ETF (3.81%), iShares Russell 2000 ETF (2.27%), DFA US Small Cap Value I (1.34%), Nuveen Quant Small Cap Equity R6 (1.18%), BlackRock Advantage Small Cap Core Instl (1.11%).

What is Ardmore Shipping's short interest?

2.5M shares of Ardmore Shipping were sold short, 6.26% of the float; at the average daily volume it would take 4.17 days to cover.

How many shares of Ardmore Shipping are outstanding?

Ardmore Shipping has 40.9M shares outstanding, of which 34.5M are in the public float.

Marine Shipping: ownership