Ampio Pharmaceuticals, Inc.
Ampio Pharmaceuticals, Inc. (AMPE) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · AMPE · as of Sep 30, 2025
Ownership Breakdown
1
Institutional Holders
$1
Total Inst. Value
1.14M
Shares Outstanding
freeFloat 98.47%
440
13F Shares Held
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
AMPE largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 1 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
CYPRESS CAPITAL MANAGEMENT LLC (WY) pharmaceutical preparations | 440 | 5.33% | 5.33% | $1,000 | Nov 3, 2025 | — held |
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 shares0
New Positions
first time holders0
Decreased
−0 shares0
Sold Out
fully exitedNet shares change (top 50)
+0
+0 / −0
Net new holders
+0
0 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
AMPE 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.
8
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 |
|---|---|---|---|---|---|---|---|
BUCHI J KEVIN director | Jun 9, 2023 | Purchase | 21,858 | $0.29 | $6.3K | 146.9K | Form 4 ↗ |
BUCHI J KEVIN director | Jun 8, 2023 | Purchase | 25,000 | $0.30 | $7.4K | 125.0K | Form 4 ↗ |
MARTINO MICHAEL A CEO | May 24, 2023 | Purchase | 76,890 | $0.29 | $22.1K | 76.9K | Form 4 ↗ |
BUCHI J KEVIN director | May 16, 2023 | Purchase | 32,534 | $0.27 | $8.9K | 100.0K | Form 4 ↗ |
BUCHI J KEVIN director | May 15, 2023 | Purchase | 44,026 | $0.25 | $10.9K | 67.5K | Form 4 ↗ |
BUCHI J KEVIN director | May 12, 2023 | Purchase | 23,440 | $0.24 | $5.5K | 23.4K | Form 4 ↗ |
Stevens David R director | May 12, 2023 | Purchase | 45,000 | $0.22 | $9.9K | 104.0K | Form 4 ↗ |
Stevens David R director | May 11, 2023 | Purchase | 25,000 | $0.21 | $5.4K | 59.0K | Form 4 ↗ |
Stevens David R director | May 11, 2023 | Purchase | 25,000 | $0.22 | $5.5K | 34.0K | Form 4 ↗ |
JOBES ELIZABETH VARKI director | Mar 1, 2022 | Award | 150,000 | $0.45 | $67.7K | 150.0K | 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
Ampio Pharmaceuticals, Inc. (AMPE) is primarily owned by institutional investors, who hold approximately 0.0% of total shares outstanding. Company insiders own approximately 1.53%, while retail and public investors account for the remaining 98.43%.
The largest institutional shareholder of Ampio Pharmaceuticals, Inc. is CYPRESS CAPITAL MANAGEMENT LLC (WY), holding approximately 440 shares — equal to 5.33% of outstanding shares — as of September 30, 2025.
A total of 1 institutional investors currently hold AMPE stock, with a combined institutional value of approximately $1 as of the most recent 13F filing period.
Frequently asked questions
AMPE ownershipAmpio Pharmaceuticals, Inc. (AMPE) is primarily owned by institutional investors, who hold approximately 0.0% of shares. The largest shareholder is CYPRESS CAPITAL MANAGEMENT LLC (WY) with a 5.33% stake. Company insiders hold 1.53%. Data sourced from SEC Form 13F as of September 30, 2025.