Institutional Holders (2026 Q1)
40 + investorsExplore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in AMPG. Verified SEC 13F-HR filings.
| # | Investor | % of Portfolio | Shares | Mkt Value |
|---|---|---|---|---|
| 1 | Bard Associates Inc | 0.76% | 1,597,195 | $3.0M |
| 2 | Cable Car Capital, LP | 0.35% | 530,890 | $1.0M |
| 3 | Creek Drive Management Group LLC | 0.32% | 735,500 | $1.4M |
| 4 | Pekin Hardy Strauss, Inc. | 0.03% | 160,800 | $306K |
| 5 | Essex Investment Management Co LLC | 0.03% | 87,840 | $167K |
| 6 | Corsair Capital Management, L.P. | 0.02% | 69,722 | $132K |
| 7 | Thompson Davis & CO., INC. | 0.02% | 12,000 | $23K |
| 8 | Integrated Wealth Concepts LLC | 0.01% | 424,810 | $807K |
| 9 | Landscape Capital Management, L.L.C. | 0.01% | 44,954 | $85K |
| 10 | Bridgeway Capital Management, LLC | 0.00% | 105,849 | $201K |
| 11 | Legato Capital Management LLC | 0.00% | 20,675 | $39K |
| 12 | Sig Brokerage, LP | 0.00% | 55,000 | $104K |
| 13 | XTX Topco Ltd | 0.00% | 43,233 | $82K |
| 14 | Bryn Mawr Trust Advisors, LLC | 0.00% | 14,775 | $28K |
| 15 | Cornerstone Planning Group LLC | 0.00% | 3,800 | $9K |
| 16 | Renaissance Technologies LLC | 0.00% | 372,600 | $708K |
| 17 | SBI Securities Co., Ltd. | 0.00% | 20,404 | $39K |
| 18 | TFC Financial Management, Inc. | 0.00% | 1,000 | $2K |
| 19 | Tower Research Capital LLC (TRC) | 0.00% | 4,383 | $8K |
| 20 | Susquehanna International Group, LLP | 0.00% | 627,800 | $1.2M |
| 21 | Two Sigma Investments, LP | 0.00% | 49,039 | $93K |
| 22 | Citadel Advisors LLC | 0.00% | 218,900 | $416K |
| 23 | Vanguard Fiduciary Trust Co | 0.00% | 111,257 | $211K |
| 24 | Vanguard Capital Management LLC | 0.00% | 805,436 | $1.5M |
| 25 | Marshall Wace, LLP | 0.00% | 14,442 | $27K |
| Investor | Ownership History |
% of Portfolio | Prev % | Rank | Conviction | Avg Buy Price | 13F Score™ 3Y / 7Y | Sell Timing | Shares | Mkt Value | Change | Change % | Source | Quarter | Filed |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|