13D·WATCH Activist + Insider Intelligence Live feed Blog About Pricing
ISSUER PROFILE · CIK 0001817241 · CUSIP 04317A107

ARTIVA BIOTHERAPEUTICS, INC.ARTV

5 13D/G filings 3 distinct filers 10 insider transactions (365d)

Post-Filing Returns · across 3 activist filings on this issuer

Median 30d
-30.0%
avg -16.1%
Median 60d
-9.1%
avg -9.1%
Median 90d
avg —
Median 180d
avg —

Returns measured from each activist filing's date_of_event, split + dividend adjusted via Yahoo Finance.

Cross-Reference Snapshot

Activist filings
5
4 SCHEDULE 13D/A · 1 SCHEDULE 13G
Distinct filers
3
multi-activist cluster
Insiders (365d)
10
5 buys · 5 sales
Latest short DTC
5.13
as of 2026-07-31

Institutional Consensus · 2026-06-30

Held by elite portfolio managers
1 holder · $25.26M
Viking Global

13D/G Filings Timeline · 5 total

FiledFormFilerStakeSharesIntent
2026-07-23 SCHEDULE 13D/A RA CAPITAL MANAGEMENT, L.P. 18,415,956 view →
2026-06-15 SCHEDULE 13D/A RA CAPITAL MANAGEMENT, L.P. 36.60% 17,811,623 view →
2026-05-28 SCHEDULE 13D/A GC Corp. 12.30% 5,999,703 view →
2026-05-18 SCHEDULE 13G VIKING GLOBAL INVESTORS LP view →
2026-05-13 SCHEDULE 13D/A RA CAPITAL MANAGEMENT, L.P. 16,377,468 view →

Form 4 Insider Transactions · last 365d

DateInsiderRoleTypeSharesPriceValue
2026-07-13 RA CAPITAL MANAGEMENT, L.P. director, 10%+ Buy 6,552 $8.94 $59K
2026-07-10 RA CAPITAL MANAGEMENT, L.P. director, 10%+ Buy 15,102 $8.97 $135K
2026-06-11 RA CAPITAL MANAGEMENT, L.P. director, 10%+ Buy 548,580 $7.91 $4.34M
2026-06-10 RA CAPITAL MANAGEMENT, L.P. director, 10%+ Buy 103 $7.00 $721
2026-06-09 RA CAPITAL MANAGEMENT, L.P. director, 10%+ Buy 479,039 $6.91 $3.31M
2026-05-19 Raymon Heather officer Sale 3,095 $9.01 $28K
2026-05-19 Horan Christopher officer Sale 7,002 $9.01 $63K
2026-05-19 Bush Jennifer officer Sale 8,790 $9.01 $79K
2026-05-19 Banerjee Subhashis officer Sale 7,037 $9.01 $63K
2026-05-19 Aslan Fred director, officer Sale 27,116 $9.01 $244K

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-07-31 1,921,843 5.13 +11.5%
2026-07-15 1,724,074 3.77 +28.7%
2026-06-30 1,339,927 1.82 +24.1%
2026-06-15 1,079,519 1.63 +5.3%
2026-05-29 1,025,413 1.98 +113.4%
2026-05-15 480,579 1.00 +109.1%
2026-04-30 229,817 1.00 +54.8%
2026-04-15 148,487 1.00 +0.2%
2026-03-31 148,199 1.18 +0.7%
2026-03-13 147,133 1.00 -1.1%
2026-02-27 148,835 1.15 -21.3%
2026-02-13 189,121 1.37 -7.2%

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