Corcept Therapeutics Incorporated (CORT) Ownership

NASDAQ: CORTTop holders, insider trades and short interest.

CORT ownership summary

as of October 18, 2026
Institutions
77.0%
of shares outstanding
Insiders
11.46%
of shares outstanding
Shares outstanding
108.1M
Float
96.5M
shares available to trade
Short interest
10.18%
8.5M shares short
Days to cover
5.11
short interest down 8.7% vs prior month
  • Institutions 76.96%
  • Insiders 11.46%
  • Other investors 11.57%

CORT top institutional holders

20 largest
Corcept Therapeutics Incorporated top institutional holders
#Holder% of sharesSharesValueChangeReported
1BlackRock Inc11.50%12.4M$1.37B+280,747 (+2.3%)June 30, 2026
2Ingalls & Snyder LLC7.34%7.9M$874.1M+325,791 (+4.3%)June 30, 2026
3Renaissance Technologies Corp4.87%5.3M$579.6M−421,155 (−7.4%)June 30, 2026
4Vanguard Portfolio Management, LLC4.67%5.0M$555.7M+224,070 (+4.6%)June 30, 2026
5Vanguard Capital Management, LLC3.86%4.2M$459.6M+95,286 (+2.3%)June 30, 2026
6Parallel Advisors, LLC3.67%4.0M$436.5M−15,227 (−0.4%)June 30, 2026
7FMR Inc3.09%3.3M$367.7M+147,426 (+4.6%)June 30, 2026
8State Street Corp3.03%3.3M$361.3M+78,435 (+2.5%)June 30, 2026
9AQR Capital Management LLC2.39%2.6M$284.5M+2.2M (+535.8%)June 30, 2026
10Geode Capital Management, LLC2.34%2.5M$278.9M−181,321 (−6.7%)June 30, 2026
11First Trust Advisors L.P.1.69%1.8M$201.5M−343,831 (−15.8%)June 30, 2026
12TANG CAPITAL MANAGEMENT LLC1.39%1.5M$165.2M—June 30, 2026
13UBS Group AG1.27%1.4M$151.8M+13,990 (+1.0%)June 30, 2026
14Dimensional Fund Advisors, Inc.1.22%1.3M$145.3M−234,314 (−15.1%)June 30, 2026
15Charles Schwab Investment Management Inc1.07%1.2M$127.5M+37,621 (+3.4%)June 30, 2026
16Morgan Stanley - Brokerage Accounts1.05%1.1M$125.3M+118,714 (+11.7%)June 30, 2026
17D. E. Shaw & Co LP0.82%883K$97.3M−298,347 (−25.3%)June 30, 2026
18HPM Partners LLC0.74%797K$87.8M+65,430 (+8.9%)June 30, 2026
19MPM Oncology Impact Management LP0.71%771K$84.9M−214,672 (−21.8%)June 30, 2026
20Northern Trust Corp0.70%754K$83.0M+110,638 (+17.2%)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 3.7M shares and 7 cut 1.7M.

CORT top mutual fund and ETF holders

20 largest
Corcept Therapeutics Incorporated top fund holders
#Holder% of sharesSharesValueChangeReported
1iShares Core S&P Mid-Cap ETF3.13%3.4M$373.3M−1,212 (−0.0%)September 30, 2026
2Vanguard MStar Total Stk Mkt Idx Invest2.68%2.9M$319.5M−3,391 (−0.1%)August 31, 2026
3Vanguard Small Cap Index2.03%2.2M$241.3M+90,591 (+4.3%)September 30, 2026
4Fidelity Contrafund1.35%1.5M$161.3M−478 (−0.0%)August 31, 2026
5Vanguard MStar Small Cap Growth Indx Inv1.13%1.2M$134.1M+12,638 (+1.0%)September 30, 2026
6First Trust NYSE Arca Biotech ETF0.91%985K$108.5M—September 30, 2026
7State Street® SPDR® S&P MIDCAP 400® ETF0.65%703K$77.5M+703,363 (0.0%)September 30, 2026
8iShares S&P Mid-Cap 400 Growth ETF0.51%549K$60.5M−586 (−0.1%)September 30, 2026
9iShares Russell Mid-Cap Growth ETF0.49%533K$58.8M−570 (−0.1%)September 30, 2026
10Fidelity Select Biotechnology0.47%507K$55.8M—August 31, 2026
11State Street SPDR Port S&P 400 Md CpETF0.47%503K$55.4M−704 (−0.1%)September 30, 2026
12Fidelity Extended Market Index0.43%466K$51.3M−5,655 (−1.2%)August 31, 2026
13iShares Russell Mid-Cap ETF0.36%392K$43.1M+722 (+0.2%)September 30, 2026
14Fidelity Mid Cap Index0.33%361K$39.7M+1,355 (+0.4%)August 31, 2026
15iShares Russell 1000 Growth ETF0.33%356K$39.2M−238 (−0.1%)September 30, 2026
16iShares US Pharmaceuticals ETF0.32%347K$38.2M+1,068 (+0.3%)September 30, 2026
17Strategic Advisers Fidelity US TtlStk0.32%341K$37.6M+3,587 (+1.1%)August 31, 2026
18Fidelity VIP Mid Cap Initial0.31%338K$37.2M−120,900 (−26.3%)August 31, 2026
19TD Global Capital Reinvestment - I0.29%316K$34.8M—December 31, 2025
20Fidelity Contrafund K60.29%314K$34.5M−764 (−0.2%)August 31, 2026

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

CORT insider transactions

latest 20
Corcept Therapeutics Incorporated insider transactions
DateNameTransactionPriceSharesValue
2026-04-07William GuyerSell$40.9720,000$819,400
2026-03-25Joseph K BelanoffSell$50.0726,198$1.3M
2026-03-20William GuyerSell$36.0111,767$423,730
2026-03-17G Leonard Baker JrBuy$33.14100,000$3.3M
2026-03-04William GuyerSell$35.998,233$296,306
2026-02-03William GuyerSell$40.8720,000$817,400
2026-01-06William GuyerSell$35.1820,000$703,600
2025-12-02William GuyerSell$80.0820,000$1.6M
2025-12-01Sean MaduckSell$79.5220,000$1.6M
2025-12-01Joseph K BelanoffSell$79.7740,000$3.2M
2025-12-01Joseph Douglas LyonSell$79.535,000$397,650
2025-11-25William GuyerSell$80.904,500$364,050
2025-11-05Joseph K BelanoffSell$74.7728,782$2.2M
2025-11-05William GuyerSell$75.3620,000$1.5M
2025-11-03Sean MaduckSell$73.9920,000$1.5M
2025-11-03Joseph K BelanoffSell$74.0811,218$831,029
2025-11-03Joseph Douglas LyonSell$73.655,000$368,250
2025-10-10Daniel N Swisher JrSell$87.542,200$192,588
2025-10-07William GuyerSell$89.9420,000$1.8M
2025-10-01Joseph Douglas LyonSell$84.755,000$423,750

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.

CORT shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns CORT

Institutional investors own 77.0% of Corcept Therapeutics's shares and insiders 11.46%. The largest holder is BlackRock Inc with 11.50% of the shares (12.4M), as of June 30, 2026. Among the top 20 institutions, 12 added shares and 7 reduced their stake in the latest filings. Short interest is 10.18% of the float, or 5.11 days of average trading volume. The share count rose 17.6% since 2014.

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

CORT ownership FAQ

Who owns the most Corcept Therapeutics stock?

The largest shareholders of Corcept Therapeutics are BlackRock Inc (11.50%), Ingalls & Snyder LLC (7.34%), Renaissance Technologies Corp (4.87%), Vanguard Portfolio Management, LLC (4.67%), Vanguard Capital Management, LLC (3.86%).

What percentage of Corcept Therapeutics is owned by institutions?

Institutions hold 77.0% of Corcept Therapeutics's shares outstanding; insiders hold 11.46%.

Which funds own Corcept Therapeutics?

The largest fund holders of Corcept Therapeutics are iShares Core S&P Mid-Cap ETF (3.13%), Vanguard MStar Total Stk Mkt Idx Invest (2.68%), Vanguard Small Cap Index (2.03%), Fidelity Contrafund (1.35%), Vanguard MStar Small Cap Growth Indx Inv (1.13%).

What is Corcept Therapeutics's short interest?

8.5M shares of Corcept Therapeutics were sold short, 10.18% of the float; at the average daily volume it would take 5.11 days to cover.

Are insiders buying or selling Corcept Therapeutics?

Of the latest 20 reported insider transactions in Corcept Therapeutics (since October 1, 2025), 1 were purchases and 19 were sales.

How many shares of Corcept Therapeutics are outstanding?

Corcept Therapeutics has 108.1M shares outstanding, of which 96.5M are in the public float.

Biotechnology: ownership