ARTV insider buying and SEC filings, explained
Artiva Biotherapeutics, Inc. · CIK 1817241
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$109.1M
Insiders who bought
2
Sold (not marked 10b5-1)
$2.3M
Planned sales (10b5-1)
$569K
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Nov 2, 2026 | Sale | Christopher Horan (Chief Tech Operations Officer) sold 10,423 shares at $4.18 ($44K). Holdings down 3% to 302,321 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 3, 2026, 4:05 PM ET |
| Nov 2, 2026 | Sale | Jennifer Bush (President / COO) sold 8,439 shares at $4.18 ($35K). Holdings down 2% to 357,720 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 3, 2026, 4:05 PM ET |
| Nov 2, 2026 | Sale | Subhashis Banerjee (Chief Medical Officer) sold 1,110 shares at $4.18 ($5K). Holdings down 1% to 168,738 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 3, 2026, 4:04 PM ET |
| Nov 2, 2026 | Sale | Fred Aslan (CEO and Director) sold 62,178 shares at $4.18 ($260K). Holdings down 4% to 1,457,428 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 3, 2026, 4:04 PM ET |
| Oct 6, 2026 | Planned (10b5-1) | Fred Aslan (CEO and Director) sold 23,463 shares at about $7.20 ($169K), marked as a 10b5-1 plan trade. Holdings down 2% to 1,519,606 shares. | SEC filing Filed Oct 7, 2026, 4:02 PM ET |
| Oct 5, 2026 | Sale | Christopher Horan (Chief Tech Operations Officer) sold 10,340 shares at $6.84 ($71K). Holdings down 3% to 312,744 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Oct 6, 2026, 4:02 PM ET |
| Oct 5, 2026 | Sale | Jennifer Bush (President / COO) sold 8,370 shares at $6.84 ($57K). Holdings down 2% to 366,159 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Oct 6, 2026, 4:02 PM ET |
| Oct 5, 2026 | Sale | Subhashis Banerjee (Chief Medical Officer) sold 1,099 shares at $6.84 ($8K). Holdings down 1% to 169,848 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Oct 6, 2026, 4:02 PM ET |
| Oct 5, 2026 | Sale | Fred Aslan (CEO and Director) sold 61,696 shares at $6.84 ($422K). Holdings down 4% to 1,543,069 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Oct 6, 2026, 4:01 PM ET |
| Sep 8, 2026 | Planned (10b5-1) | Fred Aslan (CEO and Director) sold 23,429 shares at about $10.92 ($256K), marked as a 10b5-1 plan trade. Holdings down 2% to 1,449,765 shares. | SEC filing Filed Sep 9, 2026 |
| Sep 3, 2026 | Sale | Christopher Horan (Chief Tech Operations Officer) sold 10,366 shares at about $11.16 ($116K). Holdings down 4% to 283,084 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 4, 2026 |
| Sep 3, 2026 | Sale | Jennifer Bush (President / COO) sold 8,391 shares at about $11.16 ($94K). Holdings down 2% to 329,529 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 4, 2026 |
| Sep 3, 2026 | Sale | Subhashis Banerjee (Chief Medical Officer) sold 1,100 shares at $11.16 ($12K). Holdings down 1% to 140,947 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 4, 2026 |
| Sep 3, 2026 | Sale | Fred Aslan (CEO and Director) sold 61,888 shares at about $11.16 ($691K). Holdings down 4% to 1,473,194 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 4, 2026 |
| Aug 27, 2026 | Planned (10b5-1) | Subhashis Banerjee (Chief Medical Officer) sold 8,222 shares at about $12.01 ($99K), marked as a 10b5-1 plan trade. Holdings down 5% to 142,047 shares. | SEC filing Filed Aug 31, 2026 |
| Aug 18, 2026 | Planned (10b5-1) | Subhashis Banerjee (Chief Medical Officer) sold 429 shares at $12.00 ($5K), marked as a 10b5-1 plan trade. Holdings down <1% to 144,963 shares. | SEC filing Filed Aug 19, 2026 |
| Jul 29–31, 2026 | Purchase (code P) | Peter Kolchinsky (Director and 10% owner) bought 45,768 shares indirectly between Jul 29 and Jul 31 at about $9.96 ($456K), reported as a purchase (code P). Indirect holdings up <1% to 17,329,570 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 5 other reporting owners. | SEC filing Filed Jul 31, 2026 |
| Jul 24, 2026 | Purchase (code P) | Peter Kolchinsky (Director and 10% owner) bought 41,319 shares indirectly at about $9.99 ($413K), reported as a purchase (code P). Indirect holdings up <1% to 17,283,802 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 5 other reporting owners. | SEC filing Filed Jul 28, 2026 |
| Jul 21–23, 2026 | Purchase (code P) | Peter Kolchinsky (Director and 10% owner) bought 264,586 shares indirectly between Jul 21 and Jul 23 at about $9.76 ($2.6M), reported as a purchase (code P). Indirect holdings up 2% to 17,242,483 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 5 other reporting owners. | SEC filing Filed Jul 23, 2026 |
| Jul 10–13, 2026 | Purchase (code P) Amended filing | Peter Kolchinsky (Director and 10% owner) bought 21,624 shares indirectly between Jul 10 and Jul 13 at about $8.96 ($194K), reported as a purchase (code P). Indirect holdings up <1% to 16,817,543 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 5 other reporting owners. This amends a filing from Jul 14. | SEC filing Filed Jul 23, 2026 |
| Jul 16–17, 2026 | Purchase (code P) | Peter Kolchinsky (Director and 10% owner) bought 160,354 shares indirectly between Jul 16 and Jul 17 at about $8.93 ($1.4M), reported as a purchase (code P). Indirect holdings up 1% to 16,977,927 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 5 other reporting owners. | SEC filing Filed Jul 20, 2026 |
| Jun 25–26, 2026 | Purchase (code P) | Peter Kolchinsky (Director and 10% owner) bought 32,876 shares indirectly between Jun 25 and Jun 26 at about $8.89 ($292K), reported as a purchase (code P). Indirect holdings up <1% to 16,795,919 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 5 other reporting owners. | SEC filing Filed Jun 29, 2026 |
| Jun 12–16, 2026 | Purchase (code P) | Peter Kolchinsky (Director and 10% owner) bought 531,326 shares indirectly between Jun 12 and Jun 16 at about $8.66 ($4.6M), reported as a purchase (code P). Indirect holdings up 3% to 16,763,043 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 5 other reporting owners. | SEC filing Filed Jun 16, 2026 |
| Jun 9–11, 2026 | Purchase (code P) | Peter Kolchinsky (Director and 10% owner) bought 1,027,722 shares indirectly between Jun 9 and Jun 11 at about $7.44 ($7.7M), reported as a purchase (code P). Indirect holdings up 7% to 16,231,717 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 5 other reporting owners. | SEC filing Filed Jun 11, 2026 |
| May 11, 2026 | Purchase (code P) | GC Corp. (10% owner) bought 1,432,291 shares directly and indirectly at $11.52 ($16.5M), reported as a purchase (code P). Direct holdings up 33% to 4,391,969 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 1 other reporting owner. | SEC filing Filed May 28, 2026 |
| May 19, 2026 | Sale | Heather Raymon (SVP, Research and Development) sold 3,095 shares at about $9.01 ($28K). Holdings down 2% to 148,228 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 19, 2026 |
| May 19, 2026 | Sale | Christopher Horan (Chief Tech Operations Officer) sold 7,002 shares at about $9.01 ($63K). Holdings down 2% to 293,450 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 19, 2026 |
| May 19, 2026 | Sale | Jennifer Bush (President / COO) sold 8,790 shares at about $9.01 ($79K). Holdings down 3% to 337,920 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 19, 2026 |
| May 19, 2026 | Sale | Subhashis Banerjee (Chief Medical Officer) sold 7,037 shares at about $9.01 ($63K). Holdings down 5% to 144,963 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 19, 2026 |
| May 19, 2026 | Sale | Fred Aslan (CEO and Director) sold 27,116 shares at about $9.01 ($244K). Holdings down 2% to 1,535,082 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 19, 2026 |
| May 11, 2026 | Other purchase | Peter Kolchinsky (Director and 10% owner) bought 2,170,138 Pre-Funded Warrant (Right to Buy) indirectly at $11.52 ($25.0M), reported as a purchase (code P). New position of 2,170,138 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 5 other reporting owners. | SEC filing Filed May 13, 2026 |
| May 11, 2026 | Purchase (code P) | Peter Kolchinsky (Director and 10% owner) bought 6,510,416 shares indirectly at $11.52 ($75.0M), reported as a purchase (code P). Indirect holdings up 75% to 15,203,995 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 5 other reporting owners. | SEC filing Filed May 13, 2026 |
| Dec 15, 2025 | Planned (10b5-1) | Fred Aslan (CEO and Director) sold 3,187 shares at $6.00 ($19K), marked as a 10b5-1 plan trade. Holdings down <1% to 1,209,948 shares. | SEC filing Filed Dec 15, 2025 |
| Nov 17, 2025 | Planned (10b5-1) | Fred Aslan (CEO and Director) sold 6,375 shares at about $3.38 ($22K), marked as a 10b5-1 plan trade. Holdings down 2% to 343,999 shares. | SEC filing Filed Nov 17, 2025 |
39 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
2 insiders bought in 30 days
$91.5M in purchases since May 11, 2026 · Purchases traded May 11, 2026 to May 11, 2026 · Closed
| Insider | Value | Traded | Source |
|---|---|---|---|
| Peter Kolchinsky (Director) | $75.0M | May 11, 2026 | SEC filing |
| GC Corp. (10% owner) | $16.5M | May 11, 2026 | SEC filing |
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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