David J. Mack
CIK 1694466 · View on SEC EDGAR ↗
Insider
First SEC filing: Jan. 12, 2026 · Latest: Jan. 12, 2026
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 28 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Jan. 9, 2026 | BTAI | A | 17,000 | — | — | 17,000 Direct | — | Acquired | (price as of 2026-08-19) |
| Oct. 31, 2025 | BTAI | M | 1,694 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-19) |
| Oct. 31, 2025 | BTAI | M | 1,694 | — | — | 20,317 Direct | +9.10% | Acquired | (price as of 2026-08-19) |
| Sept. 30, 2025 | BTAI | M | 1,694 | — | — | 1,694 Direct | -50.00% | Disposed | (price as of 2026-08-19) |
| Sept. 30, 2025 | BTAI | M | 1,694 | — | — | 18,623 Direct | +10.01% | Acquired | (price as of 2026-08-19) |
| Aug. 31, 2025 | BTAI | M | 1,693 | — | — | 3,387 Direct | -33.33% | Disposed | (price as of 2026-08-19) |
| Aug. 31, 2025 | BTAI | M | 1,693 | — | — | 16,930 Direct | +11.11% | Acquired | (price as of 2026-08-19) |
| July 31, 2025 | BTAI | M | 1,693 | — | — | 5,080 Direct | -25.00% | Disposed | (price as of 2026-08-19) |
| July 31, 2025 | BTAI | M | 1,693 | — | — | 15,237 Direct | +12.50% | Acquired | (price as of 2026-08-19) |
| June 30, 2025 | BTAI | M | 1,693 | — | — | 6,773 Direct | -20.00% | Disposed | (price as of 2026-08-19) |
| June 30, 2025 | BTAI | M | 1,693 | — | — | 13,544 Direct | +14.29% | Acquired | (price as of 2026-08-19) |
| May 31, 2025 | BTAI | M | 1,693 | — | — | 8,466 Direct | -16.67% | Disposed | (price as of 2026-08-19) |
| May 31, 2025 | BTAI | M | 1,693 | — | — | 11,851 Direct | +16.67% | Acquired | (price as of 2026-08-19) |
| April 30, 2025 | BTAI | M | 1,693 | — | — | 10,159 Direct | -14.28% | Disposed | (price as of 2026-08-19) |
| April 30, 2025 | BTAI | M | 1,693 | — | — | 10,158 Direct | +20.00% | Acquired | (price as of 2026-08-19) |
| March 31, 2025 | BTAI | M | 1,693 | — | — | 11,852 Direct | -12.50% | Disposed | (price as of 2026-08-19) |
| March 31, 2025 | BTAI | M | 1,693 | — | — | 8,465 Direct | +25.00% | Acquired | (price as of 2026-08-19) |
| Feb. 28, 2025 | BTAI | M | 1,693 | — | — | 13,545 Direct | -11.11% | Disposed | (price as of 2026-08-19) |
| Feb. 28, 2025 | BTAI | M | 1,693 | — | — | 6,772 Direct | +33.33% | Acquired | (price as of 2026-08-19) |
| Jan. 31, 2025 | BTAI | M | 27,089 | — | — | 243,810 Direct | -10.00% | Disposed | (price as of 2026-08-19) |
| Jan. 31, 2025 | BTAI | M | 27,089 | — | — | 81,267 Direct | +50.00% | Acquired | (price as of 2026-08-19) |
| Dec. 31, 2024 | BTAI | M | 27,089 | — | — | 270,899 Direct | +11.11% | Acquired | (price as of 2026-08-19) |
| Dec. 31, 2024 | BTAI | M | 27,089 | — | — | 54,178 Direct | +100.00% | Acquired | (price as of 2026-08-19) |
| Nov. 30, 2024 | BTAI | M | 27,089 | — | — | 297,988 Direct | -8.33% | Disposed | (price as of 2026-08-19) |
| Nov. 30, 2024 | BTAI | M | 27,089 | — | — | 27,089 Direct | — | Acquired | (price as of 2026-08-19) |
| Nov. 30, 2024 | BTAI | M | 27,089 | — | — | 27,089 Direct | — | Acquired | (price as of 2026-08-19) |
| Nov. 21, 2024 | BTAI | A | 297,988 | — | — | 297,998 Direct | +2979880.00% | Acquired | (price as of 2026-08-19) |
| Nov. 21, 2024 | BTAI | A | 325,077 | — | — | 325,077 Direct | — | Acquired | (price as of 2026-08-19) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Jan. 9, 2026 | BTAI | Stock Option (Right to Buy) | Common Stock (17,000) | $2.01 | Jan. 9, 2036 | 17,000 | Acquired |
| Oct. 31, 2025 | BTAI | Restricted Stock Units | Common Stock (1,694) | — | — | 1,694 | Disposed |
| Sept. 30, 2025 | BTAI | Restricted Stock Units | Common Stock (1,694) | — | — | 1,694 | Disposed |
| Aug. 31, 2025 | BTAI | Restricted Stock Units | Common Stock (1,693) | — | — | 1,693 | Disposed |
| July 31, 2025 | BTAI | Restricted Stock Units | Common Stock (1,693) | — | — | 1,693 | Disposed |
| June 30, 2025 | BTAI | Restricted Stock Units | Common Stock (1,693) | — | — | 1,693 | Disposed |
| May 31, 2025 | BTAI | Restricted Stock Units | Common Stock (1,693) | — | — | 1,693 | Disposed |
| April 30, 2025 | BTAI | Restricted Stock Units | Common Stock (1,693) | — | — | 1,693 | Disposed |
| March 31, 2025 | BTAI | Restricted Stock Units | Common Stock (1,693) | — | — | 1,693 | Disposed |
| Feb. 28, 2025 | BTAI | Restricted Stock Units | Common Stock (1,693) | — | — | 1,693 | Disposed |
| Jan. 31, 2025 | BTAI | Restricted Stock Units | Common Stock (27,089) | — | — | 27,089 | Disposed |
| Dec. 31, 2024 | BTAI | Restricted Stock Units | Common Stock (27,089) | — | — | 27,089 | Acquired |
| Nov. 30, 2024 | BTAI | Restricted Stock Units | Common Stock (27,089) | — | — | 27,089 | Disposed |
| Nov. 21, 2024 | BTAI | Restricted Stock Units | Common Stock (297,988) | — | — | 297,988 | Acquired |
| Nov. 21, 2024 | BTAI | Restricted Stock Units | Common Stock (325,077) | — | — | 325,077 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).