Subhashis Banerjee
Chief Medical Officer at Artiva Biotherapeutics ARTV
Full history from EDGAR: holdings now, every transaction and Form 144 planned sales
Every trade, with what the company filed around it
Open-market buys and sales as each Form 4 states them, newest first.
How these figures work
Notes on each row are as each Form 4 states them, next to SEC Tracker's own records of the company's filings and other insiders' buys. Holding after is what the filing reports they held after the trade, with the change in their holding.
| Date | Company | Trade | Value | Holding after | Notes |
|---|---|---|---|---|---|
| Nov 2, 2026 | Artiva Biotherapeutics ARTV | Sold 1,110 sh at $4.18 The filing does not mark this sale as under a Rule 10b5-1 plan. 6 days after the company's 8-K filed Oct 27, 2026. | $5K | 168,738 −1% | The filing does not mark this sale as under a Rule 10b5-1 plan. 6 days after the company's 8-K filed Oct 27, 2026. |
| Oct 5, 2026 | Artiva Biotherapeutics ARTV | Sold 1,099 sh at $6.84 The filing does not mark this sale as under a Rule 10b5-1 plan. 24 days after the company's 8-K filed Sep 11, 2026. | $8K | 169,848 −1% | The filing does not mark this sale as under a Rule 10b5-1 plan. 24 days after the company's 8-K filed Sep 11, 2026. |
| Sep 9, 2026 | Artiva Biotherapeutics ARTV | Award 30,000 sh 1 day after a Form 144 notice of a planned insider sale filed Sep 8, 2026. | 170,947 | 1 day after a Form 144 notice of a planned insider sale filed Sep 8, 2026. | |
| Sep 3, 2026 | Artiva Biotherapeutics ARTV | Sold 1,100 sh at $11.16 The filing does not mark this sale as under a Rule 10b5-1 plan. 7 days after a Form 144 notice of a planned insider sale filed Aug 27, 2026. | $12K | 140,947 −1% | The filing does not mark this sale as under a Rule 10b5-1 plan. 7 days after a Form 144 notice of a planned insider sale filed Aug 27, 2026. |
| Aug 27, 2026 | Artiva Biotherapeutics ARTV | Option exercise 5,306 sh at $1.92 The same day as a Form 144 notice of a planned insider sale filed Aug 27, 2026. | $10K | 150,269 | The same day as a Form 144 notice of a planned insider sale filed Aug 27, 2026. |
| Aug 27, 2026 | Artiva Biotherapeutics ARTV | Sold (10b5-1) 8,222 sh at $12.01 The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Aug 27, 2026. | $99K | 142,047 −5% | The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Aug 27, 2026. |
| Aug 18, 2026 | Artiva Biotherapeutics ARTV | Option exercise 429 sh at $1.92 The same day as a Form 144 notice of a planned insider sale filed Aug 18, 2026. | $824 | 145,392 | The same day as a Form 144 notice of a planned insider sale filed Aug 18, 2026. |
| Aug 18, 2026 | Artiva Biotherapeutics ARTV | Sold (10b5-1) 429 sh at $12.00 The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Aug 18, 2026. | $5K | 144,963 −<1% | The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Aug 18, 2026. |
| May 19, 2026 | Artiva Biotherapeutics ARTV | Sold 7,037 sh at $9.01 The filing does not mark this sale as under a Rule 10b5-1 plan. The same day as the company's 8-K filed May 19, 2026. | $63K | 144,963 −5% | The filing does not mark this sale as under a Rule 10b5-1 plan. The same day as the company's 8-K filed May 19, 2026. |
| Feb 15, 2026 | Artiva Biotherapeutics ARTV | Award 102,000 sh 62 days after a Form 144 notice of a planned insider sale filed Dec 15, 2025. | 152,000 | 62 days after a Form 144 notice of a planned insider sale filed Dec 15, 2025. | |
| Apr 8, 2025 | Artiva Biotherapeutics ARTV | Award 50,000 sh 15 days after the company's 10-K filed Mar 24, 2025. | 50,000 | 15 days after the company's 10-K filed Mar 24, 2025. |
Open-market trades are Form 4 transaction codes P (purchase) and S (sale). Planned sales are those the filing marks as made under a Rule 10b5-1 plan. A P-code buy at the offering price within a day of the company's FWP, 424B prospectus or offering 8-K is marked Bought in the offering and left out of open-market buy counts and cluster buys. Prices and values are as stated in each Form 4. Stock prices aren't shown on this page. Not investment advice.