Vault-13

ARTIVA BIOTHERAPEUTICS INC ARTV

COM · Common Stock · CUSIP 04317A107

49 institutional holders -5 vs Q1 2025
18,508,88818.5m shares reported held*
75.8% of all shares outstanding*
$27.9mreported value*
12 new 9 added 16 reduced 17 sold out net sold ≈ $3.6m (-2.4m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 24.4m as of 2025-07-31, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $1.51.

Trends to Q2 2025

Institutional holders

Managers reporting a position, each quarter

0204060Q3 24: 50Q4 24: 58Q1 25: 54Q2 25: 4949Q3 24Q4 24Q1 25Q2 25
Numbers
QuarterHolders
Q3 202450
Q4 202458
Q1 202554
Q2 202549

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
40040Q4 24: 25 bought or addedQ4 24: 7 cut or sold outQ4 24Q1 25: 24 bought or addedQ1 25: 18 cut or sold outQ1 25Q2 25: 21 bought or addedQ2 25: 33 cut or sold outQ2 25
Numbers
QuarterBought or addedCut or sold out
Q4 2024257
Q1 20252418
Q2 20252133

Biggest buyers

MILLENNIUM MANAGEMENT LLC New +327,067+327.1k
HRT FINANCIAL LP New +77,656+77.7k
GOLDMAN SACHS GROUP INC Added +76,051+76.1k
MARSHALL WACE, LLP New +52,213+52.2k
JANE STREET GROUP, LLC New +44,215+44.2k
Squarepoint Ops LLC New +41,395+41.4k
FMR LLC Added +38,722+38.7k
Qube Research & Technologies Ltd New +38,692+38.7k
BRIDGEWAY CAPITAL MANAGEMENT, LLC New +35,000+35.0k
Y-Intercept (Hong Kong) Ltd New +31,567+31.6k

Biggest sellers

Capital World Investors Sold out -866,622-866.6k
BlackRock, Inc. Reduced -759,784-759.8k
VANGUARD GROUP INC Reduced -625,242-625.2k
GEODE CAPITAL MANAGEMENT, LLC Reduced -251,416-251.4k
Logos Global Management LP Sold out -145,089-145.1k
STATE STREET CORP Reduced -108,909-108.9k
NORTHERN TRUST CORP Reduced -106,712-106.7k
CHARLES SCHWAB INVESTMENT MANAGEMENT INC Sold out -54,881-54.9k
venBio Partners LLC Reduced -50,000-50.0k
Nuveen, LLC Sold out -47,892-47.9k

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
RA CAPITAL MANAGEMENT, L.P. 13D · may seek influence +1.3 pts · filed 2026-07-23 37.9% +1.3 pts 18.4m≈ $178.6m 2026-07-23
GC Corp. 13D · may seek influence filed 2026-05-28 12.3% 6.0m≈ $58.2m 2026-05-28
VIKING GLOBAL INVESTORS LP 13G · passive investor new · filed 2026-05-18 5.4% new 2.6m≈ $25.3m 2026-05-18

Fell to 5% or below in the last year: Venrock Healthcare Capital Partners III, L.P. (4.2%, 2026-08-14), 5AM Ventures VI, L.P. (4.8%, 2026-08-10)

Insider purchases and sales in Q2 2025

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
202Q3 23: 0 buyingQ3 23: 0 sellingQ4 23: 0 buyingQ4 23: 0 sellingQ4 23Q1 24: 0 buyingQ1 24: 0 sellingQ2 24: 0 buyingQ2 24: 0 sellingQ2 24Q3 24: 2 buyingQ3 24: 0 sellingQ4 24: 0 buyingQ4 24: 0 sellingQ4 24Q1 25: 0 buyingQ1 25: 0 sellingQ2 25: 0 buyingQ2 25: 0 sellingQ2 25
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q3 20230—0——
Q4 20230—0——
Q1 20240—0——
Q2 20240—0——
Q3 20242$125.0m0——
Q4 20240—0——
Q1 20250—0——
Q2 20250—0——

None reported in Q2 2025.

Holders, Q2 2025

#ManagerLocationShares Value% of their portfolioChangeShares change
1 RA CAPITAL MANAGEMENT, L.P. 0.25% of their portfolio BOSTON, MA 9,853,3029.9m $14.9m $14.9m 0.25% Unchanged
2 5AM Venture Management, LLC 1.37% of their portfolio SAN FRANCISCO, CA 2,353,3042.4m $3.6m $3.6m 1.37% Unchanged
3 Venrock Adviser, LLC 0.18% of their portfolio NEW YORK, NY 1,609,5691.6m $2.4m $2.4m 0.18% Unchanged
4 venBio Partners LLC 1.51% of their portfolio SAN FRANCISCO, CA 1,148,9751.1m $1.7m $1.7m 1.51% Reduced -50.0k -50,000
5 FRANKLIN RESOURCES INC 0.00% of their portfolio San Mateo, CA 520,327520.3k $785.7k $785.7k 0.00% Unchanged
6 BlackRock, Inc. 0.00% of their portfolio New York, NY 485,727485.7k $733.4k $733.4k 0.00% Reduced -759.8k -759,784
7 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 327,067327.1k $493.9k $493.9k 0.00% New
8 SAMSARA BIOCAPITAL, LLC 0.09% of their portfolio PALO ALTO, CA 291,666291.7k $440.4k $440.4k 0.09% Unchanged
9 Woodline Partners LP 0.00% of their portfolio San Francisco, CA 283,124283.1k $427.5k $427.5k 0.00% Unchanged
10 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 232,972233.0k $351.8k $351.8k 0.00% Reduced -625.2k -625,242
11 WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio Boston, MA 194,108194.1k $293.1k $293.1k 0.00% Unchanged
12 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 159,041159.0k $240.3k $240.3k 0.00% Reduced -251.4k -251,416
13 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 153,739153.7k $232.1k $232.1k 0.00% Added +8.7k +8,650
14 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 118,003118.0k $178.2k $178.2k 0.00% Added +76.1k +76,051
15 Alyeska Investment Group, L.P. 0.00% of their portfolio CHICAGO, IL 100,000100.0k $151.0k $151.0k 0.00% Unchanged
16 HRT FINANCIAL LP 0.00% of their portfolio NEW YORK, NY 77,65677.7k $117.0k $117.0k 0.00% New
17 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 62,87462.9k $94.9k $94.9k 0.00% Reduced -108.9k -108,909
18 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 52,21352.2k $78.8k $78.8k 0.00% New
19 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 46,24746.2k $69.8k $69.8k 0.00% Added +18.4k +18,427
20 ACUTA CAPITAL PARTNERS, LLC 0.10% of their portfolio REDWOOD CITY, CA 45,45645.5k $68.6k $68.6k 0.10% Unchanged
21 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 44,21544.2k $66.8k $66.8k 0.00% New
22 FMR LLC 0.00% of their portfolio BOSTON, MA 42,27742.3k $63.8k $63.8k 0.00% Added +38.7k +38,722
23 Squarepoint Ops LLC 0.00% of their portfolio NEW YORK, NY 41,39541.4k $62.5k $62.5k 0.00% New
24 Qube Research & Technologies Ltd 0.00% of their portfolio LONDON, X0 38,69238.7k $58.4k $58.4k 0.00% New
25 BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.00% of their portfolio HOUSTON, TX 35,00035.0k $52.9k $52.9k 0.00% New
26 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 34,96435.0k $52.8k $52.8k 0.00% Reduced -106.7k -106,712
27 Y-Intercept (Hong Kong) Ltd 0.00% of their portfolio HONG KONG, K3 31,56731.6k $47.7k $47.7k 0.00% New
28 Ground Swell Capital, LLC 0.06% of their portfolio FOLLY BEACH, SC 24,84924.8k $37.5k $37.5k 0.06% New
29 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 21,37121.4k $32.3k $32.3k 0.00% New
30 Jain Global LLC 0.00% of their portfolio NEW YORK, NY 17,17117.2k $25.9k $25.9k 0.00% New
31 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 16,12116.1k $24.3k $24.3k 0.00% Reduced -8.2k -8,236
32 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 10,09810.1k $15.2k $15.2k 0.00% Added +7.5k +7,484
33 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 5,4915.5k $8.3k $8.3k 0.00% New
34 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 4,9555.0k $7.5k $7.5k 0.00% Reduced -3.3k -3,341
35 China Universal Asset Management Co., Ltd. 0.00% of their portfolio SHANGHAI, F4 4,8934.9k $7.4k $7.4k 0.00% Added +21 +21
36 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 3,5673.6k $5.4k $5.4k 0.00% Reduced -10.8k -10,771
37 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 3,3833.4k $5.1k $5.1k 0.00% Reduced -18.0k -18,040
38 UBS Group AG 0.00% of their portfolio ZURICH, V8 3,3373.3k $5.0k $5.0k 0.00% Reduced -39.7k -39,740
39 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 2,2402.2k $4.0k $4.0k 0.00% Added +1.8k +1,762
40 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 2,0642.1k $3.1k $3.1k 0.00% Reduced -10.6k -10,595
41 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 1,9061.9k $2.9k $2.9k 0.00% Reduced -20.8k -20,847
42 Mirae Asset Global Investments Co., Ltd. 0.00% of their portfolio SEOUL, M5 941941 $1.4k $1.4k 0.00% Added +128 +128
43 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 865865 $1.3k $1.3k 0.00% Reduced -17.0k -17,018
44 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 814814 $1.2k $1.2k 0.00% Reduced -12.4k -12,416
45 GF FUND MANAGEMENT CO. LTD. 0.00% of their portfolio GUANGZHOU, F4 603603 $911 $911 0.00% Unchanged
46 MARK SHEPTOFF FINANCIAL PLANNING, LLC 0.00% of their portfolio GLASTONBURY, CT 400400 $604 $604 0.00% Unchanged
47 NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio ST. LOUIS, MO 329329 $497 $497 0.00% Added +165 +165
48 CWM, LLC 0.00% of their portfolio OMAHA, NE 1010 $0 $0 0.00% Reduced -175 -175
49 CONCOURSE FINANCIAL GROUP SECURITIES, INC. — of their portfolio BIRMINGHAM, AL 00 $0 $0 — Unchanged