AI summary pending
View Full Filing (SEC EDGAR)Artiva Biotherapeutics Inc
$11.31+0.3%
+$235.8M
Net Activity
+139.90% total shares
Institutions Holding
74
Popularity Rank
#5243
Avg Weight
0.32%
Total Value
$391.7M
Market Cap
$276.5M
74 institutions currently hold ARTV, with 68 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
68
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 #5243 out of 37501 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.
Ra Capital Management, L.p. has added to its ARTV position for two straight quarters, increasing it by $131.9M to reach $174.2M today.
Morgan Stanley has trimmed its ARTV position for two straight quarters, cutting it by $94.7K while still holding $21.5K.
ARTV is up 0.3% today, and institutions have been net buyers of $235.8M this quarter — today's price move and the underlying institutional flow are pointing the same direction.
ARTV reported a net loss of $90.8M over the trailing twelve months.
+$245.0M
Total Buy Value
$5.4M
Total Sell Value
68
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 2026-06-30 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.
2
Filings (90d)
$102K
Total Est. Value
9K shares
Planned Shares
| Filer | Filing Date | Est. Value |
|---|---|---|
| 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% |
2
Filings (14d)
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
6,242
Total reported value
$2.2T
3229 13F institutions increased their position this quarter
Institutions Holding
5,990
Total reported value
$3.6T
3033 13F institutions increased their position this quarter
Institutions Holding
6,153
Total reported value
$1.8T
2971 13F institutions increased their position this quarter
The most widely held stocks tracked across all 13F institutions
Institutions Holding
4,112
Total reported value
$279.5B
Held by 4112 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,110
Total reported value
$712.5B
Held by 4110 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,088
Total reported value
$390.2B
Held by 4088 institutions — one of the most-tracked stocks on AlphaSMO
Access ARTV's institutional ownership data programmatically:
REST API
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