Corcept Therapeutics Incorporated
Corcept Therapeutics Incorporated (CORT) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · CORT · as of Sep 30, 2025
Ownership Breakdown
453
Institutional Holders
▲ 6 vs Q2
$6.41B
Total Inst. Value
▲ $535.86M vs Q2
107.35M
Shares Outstanding
freeFloat 82.90%
77.19M
13F Shares Held
▼ 1.86M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
CORT largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. pharmaceutical preparations | 12.05M | 11.57% | 11.57% | $1.00T | Nov 12, 2025 | ▼ 483.0K |
VANGUARD GROUP INC pharmaceutical preparations | 9.54M | 9.16% | 9.16% | $792.63B | Nov 7, 2025 | ▼ 143.5K |
INGALLS & SNYDER LLC pharmaceutical preparations | 7.70M | 7.39% | 7.39% | $639.78B | Nov 7, 2025 | ▼ 24.9K |
RENAISSANCE TECHNOLOGIES LLC pharmaceutical preparations | 6.09M | 5.85% | 5.85% | $506.09B | Nov 13, 2025 | ▼ 177.1K |
PARALLEL ADVISORS, LLC pharmaceutical preparations | 3.87M | 3.72% | 3.72% | $321.76B | Nov 13, 2025 | ▲ 329 |
STATE STREET CORP pharmaceutical preparations | 2.97M | 2.85% | 2.85% | $246.87B | Nov 14, 2025 | ▲ 2.8K |
FMR LLC pharmaceutical preparations | 2.20M | 2.12% | 2.12% | $183.00B | Nov 13, 2025 | ▲ 845.0K |
GEODE CAPITAL MANAGEMENT, LLC pharmaceutical preparations | 1.93M | 1.86% | 1.86% | $161.53B | Nov 12, 2025 | ▲ 18.7K |
DIMENSIONAL FUND ADVISORS LP pharmaceutical preparations | 1.89M | 1.82% | 1.82% | $157.28B | Nov 12, 2025 | ▼ 193.1K |
AQR CAPITAL MANAGEMENT LLC pharmaceutical preparations | 1.51M | 1.45% | 1.45% | $125.26B | Nov 14, 2025 | ▲ 1.27M |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
23
Increased
+4.96M shares2
New Positions
first time holders25
Decreased
−3.18M shares0
Sold Out
fully exitedNet shares change (top 50)
+1.78M
+4.96M / −3.18M
Net new holders
+0
2 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
CORT insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
26
Buy transactions
27
Sell transactions
0.96
Buy/Sell ratio
$2M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Guyer William Chief Development Officer | Jun 2, 2026 | Sale | 20,000 | $70.60 | $1.41M | 4.0K | Form 4 ↗ |
Lyon Joseph Douglas See Remarks | Jun 1, 2026 | Award | 537 | — | — | 7.3K | Form 4 ↗ |
Lyon Joseph Douglas See Remarks | Jun 2, 2026 | Tax Withhold | 269 | $70.44 | $18.9K | 7.0K | Form 4 ↗ |
Lyon Joseph Douglas See Remarks | Jun 1, 2026 | Award | 537 | $70.44 | $37.8K | 6.8K | Form 4 ↗ |
Guyer William Chief Development Officer | Jun 1, 2026 | Award | 877 | — | — | 4.0K | Form 4 ↗ |
Guyer William Chief Development Officer | Jun 1, 2026 | Award | 877 | $70.44 | $61.8K | 3.1K | Form 4 ↗ |
Maduck Sean See Remarks | Jun 1, 2026 | Sale | 21,069 | $70.11 | $1.48M | 12.9K | Form 4 ↗ |
Maduck Sean See Remarks | Jun 1, 2026 | Award | 615 | — | — | 10.2K | Form 4 ↗ |
Maduck Sean See Remarks | Jun 2, 2026 | Tax Withhold | 452 | $70.44 | $31.8K | 9.8K | Form 4 ↗ |
Maduck Sean See Remarks | Jun 1, 2026 | Award | 615 | $70.44 | $43.3K | 9.6K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Corcept Therapeutics Incorporated (CORT) is primarily owned by institutional investors, who hold approximately 71.9% of total shares outstanding. Company insiders own approximately 17.10%, while retail and public investors account for the remaining 11.00%.
The largest institutional shareholder of Corcept Therapeutics Incorporated is BLACKROCK, INC., holding approximately 12.05 million shares — equal to 11.57% of outstanding shares — as of September 30, 2025.
A total of 453 institutional investors currently hold CORT stock, with a combined institutional value of approximately $6.41 billion as of the most recent 13F filing period.
Frequently asked questions
CORT ownershipCorcept Therapeutics Incorporated (CORT) is primarily owned by institutional investors, who hold approximately 71.9% of shares. The largest shareholder is BLACKROCK, INC. with a 11.57% stake. Company insiders hold 17.10%. Data sourced from SEC Form 13F as of September 30, 2025.