RA Capital (ARTV) adds June share purchases as 10% owner
Rhea-AI Filing Summary
Artiva Biotherapeutics, Inc. reported open-market purchases of its common stock by investment funds and accounts managed by RA Capital Management, L.P. The transactions covered a total of 531,326 shares at prices around $8.57 to $8.99 per share, with weighted-average prices within disclosed ranges of $8.31 to $9.00. Following these buys, the largest reported indirect position among the reporting entities was 16,763,043 shares of common stock. The Adviser, its general partner and related individuals and funds disclaim beneficial ownership of the reported securities except to the extent of their pecuniary interest.
Positive
- None.
Negative
- None.
Insider Trade Summary
Net Buyer: 531,326 shares
Net Buy
6 txns
Insider
RA CAPITAL MANAGEMENT, L.P., RA Capital Healthcare Fund LP, RA Capital Nexus Fund, L.P., RA Capital Nexus Fund III, L.P., Kolchinsky Peter, Shah Rajeev M.
Role
Director, 10% Owner | Director, 10% Owner | Director | Director | Director, 10% Owner | Director, 10% Owner
Bought
531,326 shs ($4.60M)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Purchase | Common Stock | 124,893 | $8.89 | $1.11M |
| Purchase | Common Stock | 15,414 | $8.99 | $139K |
| Purchase | Common Stock | 391,019 | $8.57 | $3.35M |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
Holdings After Transaction:
Common Stock — 17,922,766 shares (Indirect, See footnotes)
Footnotes (8)
- F1. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $8.31 to $8.64 inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.
- F2. RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund"), RA Capital Nexus Fund, L.P. (the "Nexus Fund"), RA Capital Nexus III Fund, L.P. (the "Nexus Fund III"), and a separately managed account (the "Account"). The general partner of the Adviser is RA Capital Management GP, LLC (the "Adviser GP"), of which Dr. Peter Kolchinsky and Mr. Rajeev Shah are the managing members. The Adviser, the Adviser GP, the Fund, the Nexus Fund, the Nexus Fund III, Dr. Kolchinsky and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.
- F3. Held directly by the Fund.
- F4. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $8.96 to $9.00 inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.
- F5. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $8.63 to $9.00 inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.
- F6. Held directly by the Nexus Fund.
- F7. Held directly by Nexus Fund III.
- F8. Held directly by the Account.
Key Figures
Total shares purchased: 531,326 shares
Purchase price 1: $8.57 per share
Purchase price 2: $8.89 per share
+4 more
7 metrics
Total shares purchased
531,326 shares
Aggregate open-market buys reported in Form 4
Purchase price 1
$8.57 per share
One of the reported transaction prices for ARTV common stock
Purchase price 2
$8.89 per share
One of the reported transaction prices for ARTV common stock
Purchase price 3
$8.99 per share
One of the reported transaction prices for ARTV common stock
Price range footnote A
$8.31–$8.64
Weighted-average purchase range disclosed for one set of trades
Price range footnote B
$8.96–$9.00
Weighted-average purchase range disclosed for another set of trades
Largest post-transaction holding
16,763,043 shares
Indirect common stock position after June 16, 2026 purchase
Key Terms
weighted average price, pecuniary interest, separately managed account, indirect ownership, +1 more
5 terms
weighted average price financial
"The price reported in Column 4 is a weighted average price."
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
pecuniary interest financial
"disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein."
separately managed account financial
"and a separately managed account (the "Account")."
A separately managed account (SMA) is a personalized investment portfolio owned by a single investor and run by a professional manager who buys and sells securities on that investor’s behalf. It matters to investors because an SMA offers tailored asset selection, tax handling, and transparency—like hiring a personal chef who prepares meals to your dietary needs rather than sharing a set menu—so you can align holdings with your goals and see exactly what you own.
indirect ownership financial
"ownership_type": "indirect""
open-market purchase financial
"transaction_action": "open-market purchase""
An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.
AI-generated analysis. How Rhea-AI works. Not financial advice.
FAQ
What insider activity did ARTV report in this Form 4 filing?
Artiva Biotherapeutics (ARTV) reported open-market purchases of its common stock by entities managed by RA Capital Management, L.P. The filing shows several buy transactions totaling 531,326 shares, indicating increased indirect ownership by those investment funds and accounts.
Who is RA Capital Management in relation to Artiva Biotherapeutics (ARTV)?
RA Capital Management, L.P. is the investment manager for several reporting entities holding ARTV shares, including RA Capital Healthcare Fund, Nexus funds and a separately managed account. It and related parties disclaim beneficial ownership except to the extent of their pecuniary interest in the reported securities.
Are the ARTV insider purchases held directly by individuals or by funds?
The ARTV shares are held directly by funds and accounts, including RA Capital Healthcare Fund, the Nexus funds and a separately managed account. The investment adviser and related individuals are reporting persons but disclaim beneficial ownership beyond their pecuniary interest in those entities’ holdings.