Ethema Health Corporation
Ethema Health Corporation (GRST) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · GRST · as of Sep 30, 2025
Ownership Breakdown
1
Institutional Holders
▲ 1 vs Q2
$60
Total Inst. Value
▲ $60 vs Q2
7.73B
Shares Outstanding
freeFloat 46.00%
200,000
13F Shares Held
▲ 200,000 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
GRST largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 1 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
STERLING INVESTMENT ADVISORS, LTD. services-general medical & surgical hospitals, nec | 200.0K | 0.28% | 0.28% | $60,000 | Oct 28, 2025 | NEW |
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
0
Increased
+0 shares1
New Positions
first time holders0
Decreased
−0 shares0
Sold Out
fully exitedNet shares change (top 50)
+0
+0 / −0
Net new holders
+1
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
GRST insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
2
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Greene Eileen Maria Related party | Nov 21, 2024 | Purchase | 10,000,000 | $0.00 | $5.0K | 1099.20M | Form 4 ↗ |
Greene Eileen Maria Related party | Nov 20, 2024 | Purchase | 34,092,551 | $0.00 | $17.0K | 1089.20M | Form 4 ↗ |
Leon Shawn Edward CEO | Jul 12, 2024 | Purchase | 3,000,000,000 | $0.00 | $1.50M | 3063.19M | Form 4 ↗ |
Greene Eileen Maria Related party | Jul 12, 2024 | Purchase | 1,000,000,000 | $0.00 | $500.0K | 1050.11M | Form 4 ↗ |
Greene Eileen Maria Related party | Jun 20, 2024 | Purchase | 5,000,000 | $0.00 | $3.0K | 55.11M | Form 4 ↗ |
Greene Eileen Maria Related party | Jun 18, 2024 | Purchase | 5,000,000 | $0.00 | $3.0K | 50.11M | Form 4 ↗ |
Greene Eileen Maria Related party | Jun 6, 2024 | Purchase | 26,425,000 | $0.00 | $10.6K | 45.11M | Form 4 ↗ |
Greene Eileen Maria Related party | Jun 5, 2024 | Purchase | 10,005,000 | $0.00 | $4.0K | 18.68M | Form 4 ↗ |
Greene Eileen Maria Related party | Jun 6, 2024 | Purchase | 26,425,000 | $0.04 | $1.06M | 45.11M | Form 4 ↗ |
Greene Eileen Maria Related party | Jun 5, 2024 | Purchase | 10,005,000 | $0.04 | $400.2K | 18.68M | 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
Ethema Health Corporation (GRST) is primarily owned by institutional investors, who hold approximately 0.0% of total shares outstanding. Company insiders own approximately 54.00%, while retail and public investors account for the remaining 46.00%.
The largest institutional shareholder of Ethema Health Corporation is STERLING INVESTMENT ADVISORS, LTD., holding approximately 200,000 shares — equal to 0.28% of outstanding shares — as of September 30, 2025.
A total of 1 institutional investors currently hold GRST stock, with a combined institutional value of approximately $60 as of the most recent 13F filing period.
Frequently asked questions
GRST ownershipEthema Health Corporation (GRST) is primarily owned by institutional investors, who hold approximately 0.0% of shares. The largest shareholder is STERLING INVESTMENT ADVISORS, LTD. with a 0.28% stake. Company insiders hold 54.00%. Data sourced from SEC Form 13F as of September 30, 2025.