James B. Tananbaum
CIK 1581754 · View on SEC EDGAR ↗
Activist
First SEC filing: April 3, 2026 · Latest: April 3, 2026
On this page
Insider at
Insider transactions
8 buys (P)
0 sells (S)
Net:
$13,147,638
+ 56 non-open-market transactions below
Avg return of open purchases vs now:
187.3%
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
56 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 10, 2026 | LTGO | P | 140,000 | $18.00 | $2,520,000 | 2,008,024 Indirect | +7.49% | Acquired | 12.2% (price as of 2026-08-19) |
| Jan. 8, 2026 | ALMS | P | 294,117 | $17.00 | $4,999,989 | 2,908,332 Indirect | +11.25% | Acquired | 39.1% (price as of 2026-08-20) |
| Jan. 8, 2026 | ALMS | P | 117,647 | $17.00 | $1,999,999 | 5,702,536 Indirect | +2.11% | Acquired | 39.1% (price as of 2026-08-20) |
| Nov. 21, 2025 | ALMS | P | 72,212 | $7.38 | $532,925 | 2,614,215 Indirect | +2.84% | Acquired | 220.4% (price as of 2026-08-20) |
| Nov. 19, 2025 | ALMS | P | 190,500 | $6.56 | $1,249,680 | 2,542,003 Indirect | +8.10% | Acquired | 260.4% (price as of 2026-08-20) |
| Nov. 18, 2025 | ALMS | P | 117,374 | $6.19 | $726,545 | 2,351,503 Indirect | +5.25% | Acquired | 281.9% (price as of 2026-08-20) |
| Nov. 17, 2025 | ALMS | P | 150,000 | $5.59 | $838,500 | 2,234,129 Indirect | +7.20% | Acquired | 322.9% (price as of 2026-08-20) |
| Nov. 17, 2025 | ALMS | P | 50,000 | $5.60 | $280,000 | 2,084,129 Indirect | +2.46% | Acquired | 322.2% (price as of 2026-08-20) |
| May 6, 2025 | ALMS | P | 20,000 | $4.34 | $86,800 | 4,247,670 Indirect | +0.47% | Acquired | 444.8% (price as of 2026-08-20) |
| May 2, 2025 | ALMS | P | 25,000 | $4.62 | $115,500 | 4,227,670 Indirect | +0.59% | Acquired | 411.7% (price as of 2026-08-20) |
| July 1, 2024 | ALMS | P | 2,187,500 | $16.00 | $35,000,000 | 4,202,670 Indirect | +108.55% | Acquired | 47.8% (price as of 2026-08-20) |
| July 1, 2024 | ALMS | P | 312,500 | $16.00 | $5,000,000 | 5,584,889 Indirect | +5.93% | Acquired | 47.8% (price as of 2026-08-20) |
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 |
|---|---|---|---|---|---|---|---|
| Aug. 10, 2026 | LTGO | Series A-2 Convertible Stock | Common Stock (3,117,664) | — | — | 3,117,664 | Disposed |
| Aug. 10, 2026 | LTGO | Series B Convertible Preferred Stock | Common Stock (445,320) | — | — | 445,320 | Disposed |
| Aug. 10, 2026 | LTGO | Series A-2 Convertible Preferred Stock | Common Stock (1,125,823) | — | — | 1,125,823 | Disposed |
| Aug. 10, 2026 | LTGO | Series B Convertible Preferred Stock | Common Stock (742,201) | — | — | 742,201 | Disposed |
| Aug. 10, 2026 | LTGO | Series A-2 Convertible Preferred Stock | Common Stock (3,117,664) | — | — | 3,117,664 | Disposed |
| Aug. 10, 2026 | LTGO | Series B Convertible Preferred Stock | Common Stock (296,880) | — | — | 296,880 | Disposed |
| Aug. 10, 2026 | LTGO | Convertible Promissory Note | Common Stock (195,776) | — | — | 195,776 | Disposed |
| July 1, 2024 | ALMS | Series C Redeemable Convertible Preferred Stock | Common Stock (681,598) | — | — | 681,598 | Disposed |
| July 1, 2024 | ALMS | Series C Redeemable Convertible Preferred Stock | Common Stock (1,703,998) | — | — | 1,703,998 | Disposed |
| July 1, 2024 | ALMS | Series C Redeemable Convertible Preferred Stock | Common Stock (681,598) | — | — | 681,598 | Disposed |
| July 1, 2024 | ALMS | Series C Redeemable Convertible Preferred Stock | Common Stock (1,022,398) | — | — | 1,022,398 | Disposed |
| July 1, 2024 | ALMS | Series B-2 Redeemable Convertible Preferred Stock | Common Stock (311,172) | — | — | 311,172 | Disposed |
| July 1, 2024 | ALMS | Series B-2 Redeemable Convertible Preferred Stock | Common Stock (311,172) | — | — | 311,172 | Disposed |
| July 1, 2024 | ALMS | Series B-2 Redeemable Convertible Preferred Stock | Common Stock (311,172) | — | — | 311,172 | Disposed |
| July 1, 2024 | ALMS | Series B-2 Redeemable Convertible Preferred Stock | Common Stock (622,344) | — | — | 622,344 | Disposed |
| July 1, 2024 | ALMS | Series B-1 Redeemable Convertible Preferred Stock | Common Stock (967,567) | — | — | 967,567 | Disposed |
| July 1, 2024 | ALMS | Series B-1 Redeemable Convertible Preferred Stock | Common Stock (560,076) | — | — | 560,076 | Disposed |
| July 1, 2024 | ALMS | Series B-1 Redeemable Convertible Preferred Stock | Common Stock (560,076) | — | — | 560,076 | Disposed |
| July 1, 2024 | ALMS | Series A Redeemable Convertible Preferred Stock | Common Stock (481,283) | — | — | 481,283 | Disposed |
| July 1, 2024 | ALMS | Series A Redeemable Convertible Preferred Stock | Common Stock (1,122,994) | — | — | 1,122,994 | Disposed |
| July 1, 2024 | ALMS | Series Seed Redeemable Convertible Preferred Stock | Common Stock (194,459) | — | — | 194,459 | Disposed |
| July 1, 2024 | ALMS | Series Seed Redeemable Convertible Preferred Stock | Common Stock (1,944,577) | — | — | 1,944,577 | Disposed |
| Oct. 4, 2021 | IRON | Stock Option (Right to Buy) | Common Stock (17,245) | $3.80 | Oct. 3, 2021 | 17,245 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 24 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Aug. 6, 2026 | LTGO | Series A-2 Convertible Preferred Stock→ Common Stock (3,117,664) | 3,117,664 | Indirect |
| Aug. 6, 2026 | LTGO | Series B Convertible Preferred Stock→ Common Stock (445,320) | 445,320 | Indirect |
| Aug. 6, 2026 | LTGO | Series A-2 Convertible Preferred Stock→ Common Stock (1,125,823) | 1,125,823 | Indirect |
| Aug. 6, 2026 | LTGO | Series B Convertible Preferred Stock→ Common Stock (742,201) | 742,201 | Indirect |
| Aug. 6, 2026 | LTGO | Series A-2 Convertible Preferred Stock→ Common Stock (3,117,664) | 3,117,664 | Indirect |
| Aug. 6, 2026 | LTGO | Series B Convertible Preferred Stock→ Common Stock (296,880) | 296,880 | Indirect |
| Aug. 6, 2026 | LTGO | Convertible Promissory Note→ Common Stock (195,776) | 195,776 | Indirect |
| June 27, 2024 | ALMS | Common Stock | 1,176,470 | Indirect |
| June 27, 2024 | ALMS | Series Seed Redeemable Convertible Preferred Stock→ Common Stock (1,944,577) | 1,944,577 | Indirect |
| June 27, 2024 | ALMS | Series Seed Redeemable Convertible Preferred Stock→ Common Stock (194,459) | 194,459 | Indirect |
| June 27, 2024 | ALMS | Series A Redeemable Convertible Preferred Stock→ Common Stock (1,122,994) | 1,122,994 | Indirect |
| June 27, 2024 | ALMS | Series A Redeemable Convertible Preferred Stock→ Common Stock (481,283) | 481,283 | Indirect |
| June 27, 2024 | ALMS | Series B-1 Redeemable Convertible Preferred Stock→ Common Stock (560,076) | 560,076 | Indirect |
| June 27, 2024 | ALMS | Series B-1 Redeemable Convertible Preferred Stock→ Common Stock (560,076) | 560,076 | Indirect |
| June 27, 2024 | ALMS | Series B-1 Redeemable Convertible Preferred Stock→ Common Stock (967,567) | 967,567 | Indirect |
| June 27, 2024 | ALMS | Series B-2 Redeemable Convertible Preferred Stock→ Common Stock (622,344) | 622,344 | Indirect |
| June 27, 2024 | ALMS | Series B-2 Redeemable Convertible Preferred Stock→ Common Stock (311,172) | 311,172 | Indirect |
| June 27, 2024 | ALMS | Series B-2 Redeemable Convertible Preferred Stock→ Common Stock (311,172) | 311,172 | Indirect |
| June 27, 2024 | ALMS | Series B-2 Redeemable Convertible Preferred Stock→ Common Stock (311,172) | 311,172 | Indirect |
| June 27, 2024 | ALMS | Series C Redeemable Convertible Preferred Stock→ Common Stock (1,022,398) | 1,022,398 | Indirect |
| June 27, 2024 | ALMS | Series C Redeemable Convertible Preferred Stock→ Common Stock (681,598) | 681,598 | Indirect |
| June 27, 2024 | ALMS | Series C Redeemable Convertible Preferred Stock→ Common Stock (1,703,998) | 1,703,998 | Indirect |
| June 27, 2024 | ALMS | Series C Redeemable Convertible Preferred Stock→ Common Stock (681,598) | 681,598 | Indirect |
| Aug. 19, 2020 | IRON | Class B Common Stock→ Class A Common Stock | — | Indirect |