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ARTV

Artiva Biotherapeutics, Inc.

Company with tickers: ARTV

CIK
1817241
CUSIP
04317A107
Shares Outstanding
48,588,198
13F Activity (30d)
31 filings 29 filers

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 40
Total Value: $108,413,939
Total Shares: 16,834,466

Institutional Ownership Trend

7 quarters

Holder Concentration

Across 40 13F filers · Δ vs Dec 31, 2025
Top Holder
58.5%
Sep 2024 → Mar 2026 · range 46.6% – 58.5%
+0.4 pts
Top 5
88.3%
Sep 2024 → Mar 2026 · range 77.4% – 88.4%
−0.1 pts
Top 10
94.6%
Sep 2024 → Mar 2026 · range 91.2% – 95.3%
−0.7 pts
HHI
3,743
Sep 2024 → Mar 2026 · range 2,477 – 3,743
Highly concentrated+47

Quarterly Activity

vs Dec 31, 2025
New
12
Increased
3
Decreased
12
Sold Out
6
Unchanged
13
Holder count: +6
Institutional value: +49.0%
Shares held: -0.7%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Showing 40 of 40
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Holder Value (USD) % of 13F Shares Open