Artiva Biotherapeutics, Inc. (ARTV) — real insider trading activity disclosed to the SEC, tracked automatically as new Form 4 filings are reported. Most recent: RA CAPITAL MANAGEMENT, L.P. — 6 open-market purchases between 2026-07-21 and 2026-07-31, totaling $3,451,817.
Transactions disclosed by company insiders to the SEC on Form 4, most recent first.
| Insider | Role | Date | Shares | Value |
|---|---|---|---|---|
| Aslan Fred | Chief Executive Officer | 2026-09-03 | 61,888 | $690,392 |
| Banerjee Subhashis | Chief Medical Officer | 2026-09-03 | 1,100 | $12,271 |
| Bush Jennifer | COO, CLO, Compliance Officer | 2026-09-03 | 8,391 | $93,606 |
| Horan Christopher | Chief Tech Operations Officer | 2026-09-03 | 10,366 | $115,638 |
| Banerjee Subhashis | Chief Medical Officer | 2026-08-27 | 5,306 | $10,188 |
| Banerjee Subhashis | Chief Medical Officer | 2026-08-27 | 8,222 | $98,736 |
| Banerjee Subhashis | Chief Medical Officer | 2026-08-18 | 429 | $824 |
| Banerjee Subhashis | Chief Medical Officer | 2026-08-18 | 429 | $5,148 |
| RA CAPITAL MANAGEMENT, L.P. | Insider | 2026-07-31 | 24,944 | $247,694 |
| RA CAPITAL MANAGEMENT, L.P. | Insider | 2026-07-29 | 20,824 | $208,032 |
Position changes disclosed in SEC Form 13F filings. These report a quarterly snapshot, not exact trade dates.
| Fund | Change | Quarter |
|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. | RA CAPITAL MANAGEMENT, L.P. increased this position by 174% ($63,455,265 -> $174,169,727). | 2026-06-30 |
| VIKING GLOBAL INVESTORS LP | VIKING GLOBAL INVESTORS LP opened a new position worth $25,260,410. | 2026-06-30 |
| Blackstone Inc. | Blackstone Inc. opened a new position worth $23,313,339. | 2026-06-30 |
| Caligan Partners LP | Caligan Partners LP opened a new position worth $16,840,277. | 2026-06-30 |
| FRANKLIN RESOURCES INC | FRANKLIN RESOURCES INC increased this position by 478% ($3,350,906 -> $19,373,063). | 2026-06-30 |
| RENAISSANCE TECHNOLOGIES LLC | RENAISSANCE TECHNOLOGIES LLC increased this position by 184% ($515,445 -> $1,464,700). | 2026-06-30 |
| SAMSARA BIOCAPITAL, LLC | SAMSARA BIOCAPITAL, LLC opened a new position worth $9,262,152. | 2026-06-30 |
| Venrock Adviser, LLC | Venrock Adviser, LLC increased this position by 91% ($10,365,624 -> $19,822,881). | 2026-06-30 |
Largest reported positions as of 2026-06-30.
| Fund | Value | Shares |
|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. | $174,169,727 | 17,955,642 |
| VIKING GLOBAL INVESTORS LP | $25,260,410 | 2,604,166 |
| Blackstone Inc. | $23,313,339 | 2,403,437 |
| 5AM Venture Management, LLC | $22,827,049 | 2,353,304 |
| Venrock Adviser, LLC | $19,822,881 | 2,043,596 |
| FRANKLIN RESOURCES INC | $19,373,063 | 1,997,223 |
| Caligan Partners LP | $16,840,277 | 1,736,111 |
| VANGUARD CAPITAL MANAGEMENT LLC | $9,523,606 | 981,815 |
| SAMSARA BIOCAPITAL, LLC | $9,262,152 | 954,861 |
| Blue Owl Capital Holdings LP | $8,483,057 | 874,542 |
Data compiled from public SEC filings. This is informational reporting, not investment advice.
RA Capital Management, L.P. added another purchase to its growing tally of insider buys in Artiva Biotherapeutics, Inc. (ARTV), according to a Form 4 filed with the SEC. On July 31, 2026, the investment firm bought 24,944 shares of the clinical-stage biotech at $9.93 apiece, a transaction worth $247,693.92. The purchase was made on the … Read more
RA Capital Management, L.P. added another purchase to its recent run of open-market buys in Artiva Biotherapeutics, Inc. (ARTV), according to a Form 4 filed with the SEC. On July 24, 2026, the investment firm bought 41,319 shares at $9.99 apiece, a purchase worth $412,776.81. Following the transaction, RA Capital’s indirectly held stake stands at … Read more
RA Capital Management, L.P. has been steadily adding to its stake in Artiva Biotherapeutics, Inc. (ARTV), according to a new Form 4 filed with the SEC. The latest purchase, dated July 23, 2026, shows the firm buying 59,880 shares at $9.96 apiece, a transaction worth $596,404.80. This is not an isolated trade. It’s the third … Read more