Exact Sciences Corporation
Exact Sciences Corporation (EXAS) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · EXAS · as of Sep 30, 2025
Ownership Breakdown
610
Institutional Holders
▲ 13 vs Q2
$9.70B
Total Inst. Value
▲ $206.56M vs Q2
190.89M
Shares Outstanding
freeFloat 98.72%
178.51M
13F Shares Held
▼ 1.57M 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
EXAS largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
FMR LLC services-medical laboratories | 18.65M | 9.85% | 9.85% | $1.02T | Nov 13, 2025 | ▼ 8.24M |
VANGUARD GROUP INC services-medical laboratories | 17.81M | 9.41% | 9.41% | $974.30B | Nov 7, 2025 | ▼ 99.0K |
CAPITAL WORLD INVESTORS services-medical laboratories | 16.14M | 8.53% | 8.53% | $883.05B | Nov 13, 2025 | ▼ 2.06M |
BLACKROCK, INC. services-medical laboratories | 10.56M | 5.58% | 5.58% | $577.86B | Nov 12, 2025 | ▲ 29.6K |
WELLINGTON MANAGEMENT GROUP LLP services-medical laboratories | 5.33M | 2.81% | 2.81% | $291.38B | Nov 14, 2025 | ▼ 6.68M |
STATE STREET CORP services-medical laboratories | 5.20M | 2.75% | 2.75% | $284.23B | Nov 14, 2025 | ▼ 183.7K |
AMERIPRISE FINANCIAL INC services-medical laboratories | 4.49M | 2.37% | 2.37% | $245.80B | Nov 14, 2025 | ▲ 2.27M |
CITADEL ADVISORS LLC services-medical laboratories | 3.94M | 2.08% | 2.08% | $215.64B | Nov 14, 2025 | ▲ 3.51M |
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ services-medical laboratories | 3.91M | 2.07% | 2.07% | $213.89B | Oct 29, 2025 | ▲ 939.9K |
GEODE CAPITAL MANAGEMENT, LLC services-medical laboratories | 3.31M | 1.75% | 1.75% | $181.22B | Nov 12, 2025 | ▲ 74.8K |
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
31
Increased
+20.80M shares1
New Positions
first time holders18
Decreased
−20.13M shares0
Sold Out
fully exitedNet shares change (top 50)
+672.9K
+20.80M / −20.13M
Net new holders
+14
1 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
EXAS insider trading · insider activity
Source: SEC Form 4
16
Buy transactions
54
Sell transactions
0.30
Buy/Sell ratio
$1M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Baranick Brian EVP, GM, Precision Oncology | Mar 23, 2026 | Award | 33,321 | — | — | 137.2K | Form 4 ↗ |
Baranick Brian EVP, GM, Precision Oncology | Mar 23, 2026 | D-Return | 795 | — | — | 0 | Form 4 ↗ |
Baranick Brian EVP, GM, Precision Oncology | Mar 23, 2026 | D-Return | 28,063 | — | — | 0 | Form 4 ↗ |
Herriott James SVP, General Counsel & Sec | Mar 23, 2026 | D-Return | 1,762 | $0.01 | $17.62 | 0 | Form 4 ↗ |
Herriott James SVP, General Counsel & Sec | Mar 23, 2026 | D-Return | 793 | $92.62 | $73.4K | 0 | Form 4 ↗ |
Herriott James SVP, General Counsel & Sec | Mar 23, 2026 | D-Return | 2,861 | $98.18 | $280.9K | 0 | Form 4 ↗ |
Herriott James SVP, General Counsel & Sec | Mar 23, 2026 | D-Return | 20,321 | — | — | 0 | Form 4 ↗ |
Bloomer Aaron EVP, Chief Financial Officer | Mar 23, 2026 | Award | 89,911 | — | — | 138.7K | Form 4 ↗ |
Bloomer Aaron EVP, Chief Financial Officer | Mar 23, 2026 | D-Return | 417 | — | — | 0 | Form 4 ↗ |
Bloomer Aaron EVP, Chief Financial Officer | Mar 23, 2026 | D-Return | 28,063 | — | — | 0 | 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
Exact Sciences Corporation (EXAS) is primarily owned by institutional investors, who hold approximately 93.5% of total shares outstanding. Company insiders own approximately 1.28%, while retail and public investors account for the remaining 5.21%.
The largest institutional shareholder of Exact Sciences Corporation is FMR LLC, holding approximately 18.65 million shares — equal to 9.85% of outstanding shares — as of September 30, 2025.
A total of 610 institutional investors currently hold EXAS stock, with a combined institutional value of approximately $9.70 billion as of the most recent 13F filing period.
Frequently asked questions
EXAS ownershipExact Sciences Corporation (EXAS) is primarily owned by institutional investors, who hold approximately 93.5% of shares. The largest shareholder is FMR LLC with a 9.85% stake. Company insiders hold 1.28%. Data sourced from SEC Form 13F as of September 30, 2025.