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| Keyboard |
| B Riley Principal Merger Corp | |
|---|---|
| Ticker | ALTG |
| CIK # | 0001759824 |
| CUSIP | 02128L106 |
| Sector | Real Estate & Construction - Blank Checks |
| Address | 299 Park Avenue, 7th Floor, New York, NY 10171 |
| Source | [EDGAR] |
| CIK | Filing | 2011 - 2026 |
|---|---|---|
| [0001759824] | 10-K | |
| [0001759824] | 10-Q | |
| [0001759824] | 3 | |
| [0001759824] | 4 | |
| [0001759824] | 8-K | |
| [0001759824] | SC 13D | |
| [0001759824] | SC 13G |
| Insider Transaction (Form 3/4/5) | Date | Action | Shares | Price | Value ($) |
|---|---|---|---|---|---|
|
Lynch Thomas E +2
Common Stock, $0.0001 par value
|
2026-03-13 | Buy | 3,798 | $5.95 | 22,598 |
|
Lynch Thomas E +2
Common Stock, $0.0001 par value
|
2026-03-12 | Buy | 58,162 | $6.10 | 354,788 |
|
Nair Sidhartha
Common Stock
|
2026-03-11 | Buy | 1,000 | $6.37 | 6,370 |
|
Lynch Thomas E +2
Common Stock, $0.0001 par value
|
2026-03-11 | Buy | 18,040 | $6.36 | 114,734 |
|
Nair Sidhartha
Common Stock
|
2026-03-09 | Buy | 1,000 | $6.75 | 6,750 |
|
Nair Sidhartha
Common Stock
|
2026-03-05 | Buy | 1,000 | $7.00 | 7,000 |
|
Nair Sidhartha
Common Stock
|
2026-03-03 | Buy | 1,000 | $7.13 | 7,130 |
|
Greenawalt Ryan
Common Stock
|
2026-03-03 | Sell | 27,986 | $7.05 | 197,301 |
|
Colucci Anthony
Common Stock
|
2026-03-03 | Sell | 8,137 | $7.05 | 57,366 |
|
Common Stock
|
2026-02-27 | Grant | 11,654 | ||
|
Common Stock
|
2026-02-27 | Grant | 17,261 | ||
|
Common Stock
|
2026-02-27 | Grant | 80,115 | ||
|
Hoover Jeffrey Alan
Common Stock
|
2026-02-27 | Grant | 15,692 | ||
|
Hoover Jeffrey Alan
Common Stock
|
2026-02-27 | Grant | 24,956 | ||
|
Colucci Anthony
Common Stock
|
2026-02-27 | Grant | 16,849 | ||
|
Colucci Anthony
Common Stock
|
2026-02-27 | Grant | 10,595 | ||
|
Greenawalt Ryan
Common Stock
|
2026-02-27 | Grant | 72,832 | ||
|
Greenawalt Ryan
Common Stock
|
2026-02-27 | Grant | 115,837 | ||
|
Shribman Daniel
Common Stock
|
2025-12-08 | Buy | 40,000 | $5.07 | 202,800 |
|
White Katherine E
Common Stock
|
2025-05-30 | Grant | 20,222 | ||
| showing 20 of 200 most recent transactions | |||||
| 13F Ownership Over Time | Holders | Shares Held |
|---|---|---|
| 2026-03-31 | 126 | 19,115,738 |
| 2025-12-31 | 116 | 19,857,636 |
| 2025-09-30 | 134 | 20,863,678 |
| 2025-06-30 | 105 | 21,320,618 |
| 2025-03-31 | 101 | 22,135,901 |
| 2024-12-31 | 106 | 22,968,386 |
| 2024-09-30 | 104 | 23,025,683 |
| 2024-06-30 | 118 | 24,134,469 |
| 2024-03-31 | 126 | 25,192,063 |
| 2023-12-31 | 118 | 25,204,912 |
| 2023-09-30 | 113 | 23,189,763 |
| 2023-06-30 | 112 | 23,151,241 |
| Form 13F Holdings | ||||
|---|---|---|---|---|
| Firm | Period | DFND | Voting | Shares |
| Register Financial Advisors LLC | [2026-06-30] | SOLE | 0 | 146,635 |
| Melone Private Wealth LLC | [2026-06-30] | SOLE | 0 | 25,157 |
| Wealth Enhancement Advisory Services LLC | [2026-06-30] | SOLE | 355 | 13,301 |
| Versant Capital Management Inc | [2026-06-30] | SOLE | 2,896 | 2,896 |
| Farther Finance Advisors LLC | [2026-06-30] | SOLE | 0 | 624 |
| Gamma Investing LLC | [2026-06-30] | DFND | 547 | 547 |
| True Wealth Design LLC | [2026-06-30] | SOLE | 0 | 122 |
| Fortitude Family Office LLC | [2026-06-30] | SOLE | 60 | 60 |
| IFP Advisors LLC | [2026-06-30] | SOLE | 42 | 42 | Prev | Page 1 | Next |