James B. Tananbaum
Activist
First SEC filing: April 3, 2026 · Latest: April 3, 2026
Insider at
Insider transactions
8 buys (P)
0 sells (S)
Net: $13,147,638
Avg return of open purchases vs now: -8.8%
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 10, 2026 | LTGO | C | 3,117,664 | · | · | 3,117,664 Indirect | · | Acquired | (price as of 2026-10-06) |
| Aug. 10, 2026 | LTGO | C | 445,320 | · | · | 3,562,984 Indirect | +14.28% | Acquired | (price as of 2026-10-06) |
| Aug. 10, 2026 | LTGO | C | 1,125,823 | · | · | 1,125,823 Indirect | · | Acquired | (price as of 2026-10-06) |
| Aug. 10, 2026 | LTGO | C | 742,201 | · | · | 1,868,024 Indirect | +65.93% | Acquired | (price as of 2026-10-06) |
| Aug. 10, 2026 | LTGO | P | 140,000 | $18.00 | $2,520,000 | 2,008,024 Indirect | +7.49% | Acquired | -6.7% (price as of 2026-10-06) |
| Aug. 10, 2026 | LTGO | C | 195,776 | · | · | 2,203,800 Indirect | +9.75% | Acquired | (price as of 2026-10-06) |
| Aug. 10, 2026 | LTGO | C | 3,117,664 | · | · | 3,117,664 Indirect | · | Acquired | (price as of 2026-10-06) |
| Aug. 10, 2026 | LTGO | C | 296,880 | · | · | 3,414,544 Indirect | +9.52% | Acquired | (price as of 2026-10-06) |
| Aug. 10, 2026 | LTGO | C | 3,117,664 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-06) |
| Aug. 10, 2026 | LTGO | C | 445,320 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-06) |
| Aug. 10, 2026 | LTGO | C | 1,125,823 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-06) |
| Aug. 10, 2026 | LTGO | C | 742,201 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-06) |
| Aug. 10, 2026 | LTGO | C | 3,117,664 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-06) |
| Aug. 10, 2026 | LTGO | C | 296,880 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-06) |
| Aug. 10, 2026 | LTGO | C | 195,776 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-06) |
| April 1, 2026 | ALMS | J | 680,486 | · | · | 680,486 Indirect | · | Acquired | (price as of 2026-10-06) |
| April 1, 2026 | ALMS | J | 1,123,337 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-06) |
| April 1, 2026 | ALMS | J | 1,123,337 | · | · | 1,123,337 Indirect | · | Acquired | (price as of 2026-10-06) |
| April 1, 2026 | ALMS | J | 1,176,470 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-06) |
| Jan. 8, 2026 | ALMS | P | 294,117 | $17.00 | $4,999,989 | 2,908,332 Indirect | +11.25% | Acquired | -59.5% (price as of 2026-10-06) |
| Jan. 8, 2026 | ALMS | P | 117,647 | $17.00 | $1,999,999 | 5,702,536 Indirect | +2.11% | Acquired | -59.5% (price as of 2026-10-06) |
| Nov. 21, 2025 | ALMS | P | 72,212 | $7.38 | $532,925 | 2,614,215 Indirect | +2.84% | Acquired | -6.8% (price as of 2026-10-06) |
| Nov. 19, 2025 | ALMS | P | 190,500 | $6.56 | $1,249,680 | 2,542,003 Indirect | +8.10% | Acquired | 4.9% (price as of 2026-10-06) |
| Nov. 18, 2025 | ALMS | P | 117,374 | $6.19 | $726,545 | 2,351,503 Indirect | +5.25% | Acquired | 11.1% (price as of 2026-10-06) |
| Nov. 17, 2025 | ALMS | P | 150,000 | $5.59 | $838,500 | 2,234,129 Indirect | +7.20% | Acquired | 23.1% (price as of 2026-10-06) |
| Nov. 17, 2025 | ALMS | P | 50,000 | $5.60 | $280,000 | 2,084,129 Indirect | +2.46% | Acquired | 22.9% (price as of 2026-10-06) |
| May 6, 2025 | ALMS | P | 20,000 | $4.34 | $86,800 | 4,247,670 Indirect | +0.47% | Acquired | 58.5% (price as of 2026-10-06) |
| May 2, 2025 | ALMS | P | 25,000 | $4.62 | $115,500 | 4,227,670 Indirect | +0.59% | Acquired | 48.9% (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 681,598 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 1,703,998 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 681,598 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 1,022,398 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 311,172 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 311,172 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 311,172 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 622,344 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 967,567 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 560,076 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 560,076 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 481,283 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 1,122,994 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 194,459 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 1,944,577 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | P | 2,187,500 | $16.00 | $35,000,000 | 4,202,670 Indirect | +108.55% | Acquired | -57.0% (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 1,703,998 | · | · | 2,015,170 Indirect | +547.61% | Acquired | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 311,172 | · | · | 311,172 Indirect | · | Acquired | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 681,598 | · | · | 1,960,337 Indirect | +53.30% | Acquired | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 311,172 | · | · | 1,278,739 Indirect | +32.16% | Acquired | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 967,567 | · | · | 967,567 Indirect | · | Acquired | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 681,598 | · | · | 2,034,129 Indirect | +50.39% | Acquired | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 311,172 | · | · | 1,352,531 Indirect | +29.88% | Acquired | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 560,076 | · | · | 1,041,359 Indirect | +116.37% | Acquired | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 481,283 | · | · | 481,283 Indirect | · | Acquired | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 194,459 | · | · | 194,459 Indirect | · | Acquired | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | P | 312,500 | $16.00 | $5,000,000 | 5,584,889 Indirect | +5.93% | Acquired | -57.0% (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 1,022,398 | · | · | 5,272,389 Indirect | +24.06% | Acquired | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 622,344 | · | · | 4,249,991 Indirect | +17.16% | Acquired | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 560,076 | · | · | 3,627,647 Indirect | +18.26% | Acquired | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 1,122,994 | · | · | 3,067,571 Indirect | +57.75% | Acquired | (price as of 2026-10-06) |
| July 1, 2024 | ALMS | C | 1,944,577 | · | · | 1,944,577 Indirect | · | Acquired | (price as of 2026-10-06) |
| Oct. 4, 2021 | IRON | A | 17,245 | · | · | 17,245 Direct | · | Acquired | (price as of 2026-10-06) |
| June 11, 2021 | CAPA | A | 20,512 | · | · | 20,512 Direct | · | Acquired | (price as of 2026-10-06) |
| June 10, 2021 | CAPA | A | 348,125 | · | · | 1,598,125 Indirect | +27.85% | Acquired | (price as of 2026-10-06) |
| June 10, 2021 | CAPA | A | 1,250,000 | $10.00 | $12,500,000 | 1,250,000 Indirect | · | Acquired | 199.4% (price as of 2026-10-06) |
| June 10, 2021 | CAPA | A | 348,125 | · | · | 2,342,061 Indirect | +17.46% | Acquired | (price as of 2026-10-06) |
| June 10, 2021 | CAPA | A | 1,250,000 | $10.00 | $12,500,000 | 1,993,936 Indirect | +168.03% | Acquired | 199.4% (price as of 2026-10-06) |
| June 10, 2021 | CAPA | A | 743,936 | · | · | 743,936 Indirect | · | Acquired | (price as of 2026-10-06) |
| June 10, 2021 | CAPA | A | 4,463,619 | · | · | 4,463,619 Indirect | · | Acquired | (price as of 2026-10-06) |
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 | Disposed |
| Aug. 10, 2026 | LTGO | Series B Convertible Preferred Stock | Common Stock | · | · | 445,320 | Disposed |
| Aug. 10, 2026 | LTGO | Series A-2 Convertible Preferred Stock | Common Stock | · | · | 1,125,823 | Disposed |
| Aug. 10, 2026 | LTGO | Series B Convertible Preferred Stock | Common Stock | · | · | 742,201 | Disposed |
| Aug. 10, 2026 | LTGO | Series A-2 Convertible Preferred Stock | Common Stock | · | · | 3,117,664 | Disposed |
| Aug. 10, 2026 | LTGO | Series B Convertible Preferred Stock | Common Stock | · | · | 296,880 | Disposed |
| Aug. 10, 2026 | LTGO | Convertible Promissory Note | Common Stock | · | · | 195,776 | Disposed |
| July 1, 2024 | ALMS | Series C Redeemable Convertible Preferred Stock | Common Stock | · | · | 681,598 | Disposed |
| July 1, 2024 | ALMS | Series C Redeemable Convertible Preferred Stock | Common Stock | · | · | 1,703,998 | Disposed |
| July 1, 2024 | ALMS | Series C Redeemable Convertible Preferred Stock | Common Stock | · | · | 681,598 | Disposed |
| July 1, 2024 | ALMS | Series C Redeemable Convertible Preferred Stock | Common Stock | · | · | 1,022,398 | Disposed |
| July 1, 2024 | ALMS | Series B-2 Redeemable Convertible Preferred Stock | Common Stock | · | · | 311,172 | Disposed |
| July 1, 2024 | ALMS | Series B-2 Redeemable Convertible Preferred Stock | Common Stock | · | · | 311,172 | Disposed |
| July 1, 2024 | ALMS | Series B-2 Redeemable Convertible Preferred Stock | Common Stock | · | · | 311,172 | Disposed |
| July 1, 2024 | ALMS | Series B-2 Redeemable Convertible Preferred Stock | Common Stock | · | · | 622,344 | Disposed |
| July 1, 2024 | ALMS | Series B-1 Redeemable Convertible Preferred Stock | Common Stock | · | · | 967,567 | Disposed |
| July 1, 2024 | ALMS | Series B-1 Redeemable Convertible Preferred Stock | Common Stock | · | · | 560,076 | Disposed |
| July 1, 2024 | ALMS | Series B-1 Redeemable Convertible Preferred Stock | Common Stock | · | · | 560,076 | Disposed |
| July 1, 2024 | ALMS | Series A Redeemable Convertible Preferred Stock | Common Stock | · | · | 481,283 | Disposed |
| July 1, 2024 | ALMS | Series A Redeemable Convertible Preferred Stock | Common Stock | · | · | 1,122,994 | Disposed |
| July 1, 2024 | ALMS | Series Seed Redeemable Convertible Preferred Stock | Common Stock | · | · | 194,459 | Disposed |
| July 1, 2024 | ALMS | Series Seed Redeemable Convertible Preferred Stock | Common Stock | · | · | 1,944,577 | Disposed |
| Oct. 4, 2021 | IRON | Stock Option (Right to Buy) | Common Stock | $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 | 3,117,664 | Indirect |
| Aug. 6, 2026 | LTGO | Series B Convertible Preferred Stock | 445,320 | Indirect |
| Aug. 6, 2026 | LTGO | Series A-2 Convertible Preferred Stock | 1,125,823 | Indirect |
| Aug. 6, 2026 | LTGO | Series B Convertible Preferred Stock | 742,201 | Indirect |
| Aug. 6, 2026 | LTGO | Series A-2 Convertible Preferred Stock | 3,117,664 | Indirect |
| Aug. 6, 2026 | LTGO | Series B Convertible Preferred Stock | 296,880 | Indirect |
| Aug. 6, 2026 | LTGO | Convertible Promissory Note | 195,776 | Indirect |
| June 27, 2024 | ALMS | Common Stock | 1,176,470 | Indirect |
| June 27, 2024 | ALMS | Series Seed Redeemable Convertible Preferred Stock | 1,944,577 | Indirect |
| June 27, 2024 | ALMS | Series Seed Redeemable Convertible Preferred Stock | 194,459 | Indirect |
| June 27, 2024 | ALMS | Series A Redeemable Convertible Preferred Stock | 1,122,994 | Indirect |
| June 27, 2024 | ALMS | Series A Redeemable Convertible Preferred Stock | 481,283 | Indirect |
| June 27, 2024 | ALMS | Series B-1 Redeemable Convertible Preferred Stock | 560,076 | Indirect |
| June 27, 2024 | ALMS | Series B-1 Redeemable Convertible Preferred Stock | 560,076 | Indirect |
| June 27, 2024 | ALMS | Series B-1 Redeemable Convertible Preferred Stock | 967,567 | Indirect |
| June 27, 2024 | ALMS | Series B-2 Redeemable Convertible Preferred Stock | 622,344 | Indirect |
| June 27, 2024 | ALMS | Series B-2 Redeemable Convertible Preferred Stock | 311,172 | Indirect |
| June 27, 2024 | ALMS | Series B-2 Redeemable Convertible Preferred Stock | 311,172 | Indirect |
| June 27, 2024 | ALMS | Series B-2 Redeemable Convertible Preferred Stock | 311,172 | Indirect |
| June 27, 2024 | ALMS | Series C Redeemable Convertible Preferred Stock | 1,022,398 | Indirect |
| June 27, 2024 | ALMS | Series C Redeemable Convertible Preferred Stock | 681,598 | Indirect |
| June 27, 2024 | ALMS | Series C Redeemable Convertible Preferred Stock | 1,703,998 | Indirect |
| June 27, 2024 | ALMS | Series C Redeemable Convertible Preferred Stock | 681,598 | Indirect |
| Aug. 19, 2020 | IRON | Class B Common Stock | · | Indirect |