AI summary pending
View Full Filing (SEC EDGAR)Artiva Biotherapeutics Inc
$5.85-3.5%
+$235.8M
Net Activity
+139.90% total shares
Institutions Holding
74
Popularity Rank
#5256
Avg Weight
0.32%
Total Value
$391.7M
Market Cap
$143.0M
74 institutions currently hold ARTV, with 69 net buyers and 9 net sellers this quarter.
Institutional Moves (Q2 2026)
Significantly Increased
Based on recent trading activity
Net Selling Institutions
9
Net Buying Institutions
69
Top 5 by Value
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Across its top 20 institutional holders, ARTV's holder base skews toward low-concentration, high-turnover investors on average (avg. concentration score 29/100, avg. turnover score 54/100).
ARTV ranks #5256 out of 37696 tracked stocks by institutional interest, inside the more closely watched half of our coverage.
ARTV is a disclosed holding of Andreas Halvorsen (Viking Global Investors), one of the tracked superinvestors on AlphaSMO — it makes up 0.1% of that fund's own 13F portfolio.
ARTV is a top-conviction position for 5AM Venture Management, LLC — at 7.9% of their entire disclosed 13F portfolio, it's one of their largest single bets, not just a passing allocation.
The largest dollar stake in ARTV belongs to Ra Capital Management, L.p., but the position matters far more to 5AM Venture Management, LLC, who has 7.9% of their own portfolio riding on it — a reminder that the biggest holder by size and the holder with the biggest bet aren't always the same fund.
ARTV is down 3.5% today, but institutions show net buying of $235.8M this quarter — a divergence between today's price move and the underlying institutional flow.
ARTV reported a net loss of $90.8M over the trailing twelve months.
+$246.2M
Total Buy Value
$5.4M
Total Sell Value
69
Net Buyers
9
Net Sellers
ARTV
Q2 2026
Top 5 Institutional Movers
+$110.7M
+$25.3M
+$23.3M
+$16.8M
+$16.0M
ARTV does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.
13F data as of 2026-09-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.
4
Filings (90d)
$610K
Total Est. Value
67K shares
Planned Shares
| Filer | Filing Date | Est. Value |
|---|---|---|
| FRED ASLAN | 2026-10-06 | $246K |
| FRED ASLAN | 2026-09-08 | $262K |
| SUBHASHIS BANERJEE | 2026-08-27 | $92K |
| SUBHASHIS BANERJEE | 2026-08-18 | $10K |
Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。
1
Active 5%+ Holders
| Reporting Person | Type | Filing Date | % of Class |
|---|---|---|---|
| Venrock Healthcare Capital Partners III, L.P. | 13G/A | 2026-08-14 | 4.2% |
| 5AM Ventures VI, L.P. | 13G/A | 2026-08-10 | 4.8% |
| RA Capital Management, L.P. | 13D/A | 2026-07-23 | 37.9% |
3
Filings (14d)
AI summary pending
View Full Filing (SEC EDGAR)AI summary pending
View Full Filing (SEC EDGAR)Artiva Biotherapeutics announced that its 2026 annual meeting will be held on September 8, 2026. Because that date falls more than 70 days after the one-year anniversary of last year's meeting, the company set a new deadline of August 1, 2026, for stockholders to submit proposals or nominate directors — both for inclusion in the proxy statement and for other business brought before the meeting.
View Full Filing (SEC EDGAR)04317A107
The most-added stocks by 13F institutions this quarter
Institutions Holding
6,278
Total reported value
$2.2T
3254 13F institutions increased their position this quarter
Institutions Holding
6,025
Total reported value
$3.6T
3054 13F institutions increased their position this quarter
Institutions Holding
6,188
Total reported value
$1.8T
2995 13F institutions increased their position this quarter
The most widely held stocks tracked across all 13F institutions
Institutions Holding
4,136
Total reported value
$649.5B
Held by 4136 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,134
Total reported value
$712.8B
Held by 4134 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,112
Total reported value
$390.3B
Held by 4112 institutions — one of the most-tracked stocks on AlphaSMO
Access ARTV's institutional ownership data programmatically:
REST API
curl https://alphasmo.com/api/v1/market/stock/ARTVCLI
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