ANRO · Insider trading · 13F holders · Congress trades
Alto Neuroscience, Inc. (ANRO)
Who is buying and selling ANRO: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 14
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $3.6M
- Congress trades, 12 months
- 0
ANRO at a glance
- Between Aug 1, 2026 and Oct 29, 2026, 1 ANRO insider filed 1 sale worth $3.6M on SEC Form 4, and no open-market purchases; 1 of the sales were pre-planned under Rule 10b5-1.
- 14 13F filers hold ANRO among their 50 largest positions, worth $416.7M combined, including Joseph Edelman. The biggest bets by portfolio weight are Spruce Street Capital LP (7.0%), Commodore Capital LP (4.3%) and Vivo Capital, LLC (2.9%). In their latest 13Fs, 0 managers opened a new position and 3 added to one.
- No member of Congress has disclosed a trade in ANRO.
- ANRO last closed at $23.47 on Oct 29, 2026.
ANRO insider trading
Between Aug 1, 2026 and Oct 29, 2026, 1 ANRO insider filed 1 sale worth $3.6M on SEC Form 4, and no open-market purchases; 1 of the sales were pre-planned under Rule 10b5-1.
| Filed | Insider | Role | Trade | Shares | Price | Value | Form 4 |
|---|---|---|---|---|---|---|---|
| Oct 1, 2026 | Smith Nicholas Conrad | PRESIDENT AND CFO | Sale10b5-1 | 134,886 | $26.45 | $3.6M | SEC |
Who owns ANRO? Hedge funds and superinvestors
14 13F filers hold ANRO among their 50 largest positions, worth $416.7M combined, including Joseph Edelman. The biggest bets by portfolio weight are Spruce Street Capital LP (7.0%), Commodore Capital LP (4.3%) and Vivo Capital, LLC (2.9%). In their latest 13Fs, 0 managers opened a new position and 3 added to one.
Superinvestors holding ANRO: Joseph Edelman 0.7%
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Alpha Wave Global, LPHedge fund | 1.6% | $97.8M | 3,707,757 | +0.0% shares | Q2 2026 |
| Commodore Capital LPHedge fund | 4.3% | $71.9M | 2,723,196 | +0.0% shares | Q2 2026 |
| Joseph EdelmanHedge fund | 0.7% | $42.5M | 1,609,893 | -19.9% shares | Q2 2026 |
| Spruce Street Capital LPHedge fund | 7.0% | $35.7M | 1,353,047 | +2.1% shares | Q2 2026 |
| Vivo Capital, LLCHedge fund | 2.9% | $31.9M | 1,208,858 | +16.7% shares | Q2 2026 |
| Armistice Capital, LLCHedge fund | 0.6% | $22.8M | 864,000 | -5.3% shares | Q2 2026 |
| Affinity Asset Advisors, LLCHedge fund | 1.1% | $22.4M | 850,000 | +70.0% shares | Q2 2026 |
| Vestal Point Capital, LPHedge fund | 0.5% | $20.7M | 785,000 | -62.0% shares | Q2 2026 |
| 72 Investment Holdings, LLCInvestment manager | 35.3% | $17.6M | 667,778 | +0.0% shares | Q2 2026 |
| Integral Health Asset Management, LLCHedge fund | 0.5% | $13.2M | 500,000 | +0.0% shares | Q2 2026 |
| Venrock Adviser, LLCHedge fund | 0.4% | $13.2M | 500,000 | +0.0% shares | Q2 2026 |
| Parkman Healthcare Partners LLCHedge fund | 1.2% | $11.3M | 429,035 | — | Q2 2026 |
| Ikarian Capital, LLCHedge fund | 1.8% | $10.7M | 407,338 | -20.9% shares | Q2 2026 |
| Saturn V Capital Management LPHedge fund | 0.7% | $4.8M | 182,829 | +105.4% shares | Q2 2026 |
Each manager counts with its latest 13F (Q2 2026: 14). Screen ANRO in the grand portfolio →
ANRO stock trades by members of Congress
No member of Congress has disclosed a trade in ANRO.
Analysis mentioning ANRO
Posts from the blog that cover Alto Neuroscience, Inc., newest first.
ANRO questions and answers
Are insiders buying ANRO stock?
Between Aug 1, 2026 and Oct 29, 2026, 1 ANRO insider filed 1 sale worth $3.6M on SEC Form 4, and no open-market purchases; 1 of the sales were pre-planned under Rule 10b5-1.
Which hedge funds own ANRO?
14 13F filers hold ANRO among their 50 largest positions, worth $416.7M combined, including Joseph Edelman. The biggest bets by portfolio weight are Spruce Street Capital LP (7.0%), Commodore Capital LP (4.3%) and Vivo Capital, LLC (2.9%). In their latest 13Fs, 0 managers opened a new position and 3 added to one.
Has Congress traded ANRO?
No member of Congress has disclosed a trade in ANRO.
Who is the largest holder of ANRO?
Among 13F filers, Alpha Wave Global, LP reports the largest ANRO position, $97.8M (3,707,757 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Spruce Street Capital LP's: 7.0% of its portfolio.
Cite or share this
Free to use with a link back. The data updates every filing day.