AI summary pending
View Full Filing (SEC EDGAR)Alto Neuroscience Inc
$36.64+4.1%
+$88.3M
Net Activity
+8.61% total shares
Institutions Holding
118
Popularity Rank
#4225
Avg Weight
0.50%
Total Value
$782.8M
Market Cap
$1.1B
118 institutions currently hold ANRO, with 68 net buyers and 53 net sellers this quarter.
Institutional Moves (Q2 2026)
Neutral
Based on recent trading activity
Net Selling Institutions
53
Net Buying Institutions
68
Top 5 by Value
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Across its top 20 institutional holders, ANRO's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 24/100, avg. turnover score 46/100).
ANRO ranks #4225 out of 37501 tracked stocks by institutional interest, inside the more closely watched half of our coverage.
ANRO is a top-conviction position for 72 Investment Holdings, LLC — at 35.3% of their entire disclosed 13F portfolio, it's one of their largest single bets, not just a passing allocation.
The largest dollar stake in ANRO belongs to Alpha Wave Global, LP, but the position matters far more to 72 Investment Holdings, LLC, who has 35.3% 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.
BlackRock has added to its ANRO position for two straight quarters, increasing it by $45.2M to reach $56.0M today.
Alkeon Capital Management LLC has trimmed its ANRO position for two straight quarters, cutting it by $5.8M while still holding $2.7M.
ANRO is up 4.1% today, and institutions have been net buyers of $88.3M this quarter — today's price move and the underlying institutional flow are pointing the same direction.
ANRO reported a net loss of $63.2M in its latest fiscal year.
+$173.9M
Total Buy Value
$108.4M
Total Sell Value
68
Net Buyers
53
Net Sellers
ANRO
Q2 2026
Top 5 Institutional Movers
ANRO 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.
No Form 144 planned sale filings in the last 90 days
2
Active 5%+ Holders
| Reporting Person | Type | Filing Date | % of Class |
|---|---|---|---|
| Vestal Point Capital, LP | 13G/A | 2026-08-14 | 2.2% |
| Sirenia Capital Management LP | 13G/A | 2026-08-14 | 6.2% |
| Perceptive Advisors LLC | 13G/A | 2026-08-14 | 10.0% |
4
Filings (14d)
AI summary pending
View Full Filing (SEC EDGAR)AI summary pending
View Full Filing (SEC EDGAR)On July 13, 2026, Alto Neuroscience entered into an underwriting agreement to sell 3,776,436 shares at $26.48 per share, raising approximately $93.9 million. The proceeds will fund a Phase 3 trial for ALTO-207 in treatment-resistant depression and general working capital.
View Full Filing (SEC EDGAR)Alto Neuroscience (ANRO) filed a Form 8-K on July 13, 2026, covering Items 2.02 and 8.01. The filing discloses the company's cash, cash equivalents, and restricted cash as of June 30, 2026, under Item 8.01. This information is furnished but not filed for SEC purposes. The excerpt does not contain any specific financial numbers or results.
View Full Filing (SEC EDGAR)02157Q109
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
4,583
Total reported value
$528.9B
Held by 4583 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,419
Total reported value
$354.5B
Held by 4419 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,323
Total reported value
$864.3B
Held by 4323 institutions — one of the most-tracked stocks on AlphaSMO
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