Alto Neuroscience, Inc. (ANRO) — Institutional Holders, Q2 2026
114 institutional investment managers reported a ANRO position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $777.6M. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
ANRO in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- BlackRockAdded · +1,454,821 sh+$38.4M
- ADAGE CAPITAL PARTNERS GP, L.L.C.Added · +1,215,000 sh+$32.1M
- STATE STREETAdded · +486,442 sh+$12.8M
- Parkman Healthcare PartnersNew · +429,035 sh+$11.3M
- GEODE CAPITAL MANAGEMENTAdded · +385,300 sh+$10.2M
Biggest sellers
- Vestal Point CapitalTrimmed · -1,279,075 sh-$33.8M
- PERCEPTIVE ADVISORSTrimmed · -400,000 sh-$10.6M
- JENNISON ASSOCIATESSold out · -386,426 sh-$10.2M
- MILLENNIUM MANAGEMENTTrimmed · -263,662 sh-$7.0M
- SUSQUEHANNA INTERNATIONAL GROUP, LLPTrimmed · -230,500 sh-$6.1M
ANRO 13F holders ranked 1–100 of 114
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | Alpha Wave Global#1 · 3,707,757 sh | 3,707,757 | $97.8M | 1.57% | 0.0% |
| 2 | Commodore Capital#2 · 2,723,196 sh | 2,723,196 | $71.9M | 4.28% | 0.0% |
| 3 | BlackRock#3 · 2,121,009 sh | 2,121,009 | $56.0M | <0.01% | +218.4% |
| 4 | PERCEPTIVE ADVISORS#4 · 1,609,893 sh | 1,609,893 | $42.5M | 0.64% | -19.9% |
| 5 | ADAGE CAPITAL PARTNERS GP, L.L.C.#5 · 1,600,000 sh | 1,600,000 | $42.2M | 0.06% | +315.6% |
| 6 | VANGUARD CAPITAL MANAGEMENT#6 · 1,389,477 sh | 1,389,477 | $36.7M | <0.01% | +15.1% |
| 7 | Spruce Street Capital#7 · 1,353,047 sh | 1,353,047 | $35.7M | 7.01% | +2.1% |
| 8 | Vivo Capital#8 · 1,208,858 sh | 1,208,858 | $31.9M | 2.91% | +16.7% |
| 9 | FRANKLIN RESOURCES#9 · 1,013,307 sh | 1,013,307 | $26.7M | <0.01% | -8.0% |
| 10 | ARMISTICE CAPITAL#10 · 864,000 sh | 864,000 | $22.8M | 0.28% | -5.3% |
| 11 | Affinity Asset Advisors#11 · 850,000 sh | 850,000 | $22.4M | 1.01% | +70.0% |
| 12 | Vestal Point Capital#12 · 785,000 sh | 785,000 | $20.7M | 0.48% | -62.0% |
| 13 | STATE STREET#13 · 685,945 sh | 685,945 | $18.1M | <0.01% | +243.8% |
| 14 | GEODE CAPITAL MANAGEMENT#14 · 678,199 sh | 678,199 | $17.9M | <0.01% | +131.5% |
| 15 | 72 Investment#15 · 667,778 sh | 667,778 | $17.6M | 35.27% | 0.0% |
| 16 | NORTHERN#16 · 632,701 sh | 632,701 | $16.7M | <0.01% | +33.6% |
| 17 | MILLENNIUM MANAGEMENT#17 · 558,320 sh | 558,320 | $14.7M | <0.01% | -32.1% |
| 18 | Point72 Asset Management, L.P.#18 · 502,950 sh | 502,950 | $13.3M | 0.01% | 0.0% |
| 19 | VR Adviser#19 · 500,000 sh | 500,000 | $13.2M | 0.40% | 0.0% |
| 20 | Integral Health Asset Management#20 · 500,000 sh | 500,000 | $13.2M | 0.52% | 0.0% |
| 21 | DRIEHAUS CAPITAL MANAGEMENT#21 · 487,576 sh | 487,576 | $12.9M | 0.07% | +0.2% |
| 22 | Parkman Healthcare Partners#22 · 429,035 sh | 429,035 | $11.3M | 1.16% | New |
| 23 | Ikarian Capital#23 · 407,338 sh | 407,338 | $10.7M | 1.16% | -20.9% |
| 24 | PRICE T ROWE ASSOCIATES#24 · 358,279 sh | 358,279 | $9.5M | <0.01% | -3.5% |
| 25 | ORBIMED ADVISORS#25 · 257,852 sh | 257,852 | $6.8M | 0.13% | +53.9% |
| 26 | Schonfeld Strategic Advisors#26 · 257,631 sh | 257,631 | $6.8M | 0.02% | New |
| 27 | GOLDMAN SACHS GROUP#27 · 236,830 sh | 236,830 | $6.2M | <0.01% | +126.2% |
| 28 | MARSHALL WACE, LLP#28 · 225,503 sh | 225,503 | $6.0M | <0.01% | +27.9% |
| 29 | VANGUARD FIDUCIARY#29 · 211,257 sh | 211,257 | $5.6M | <0.01% | +27.8% |
| 30 | AMERIPRISE FINANCIAL#30 · 190,996 sh | 190,996 | $5.0M | <0.01% | +1333.5% |
| 31 | Saturn V Capital Management#31 · 182,829 sh | 182,829 | $4.8M | 0.69% | +105.4% |
| 32 | VANGUARD PORTFOLIO MANAGEMENT#32 · 181,101 sh | 181,101 | $4.8M | <0.01% | New |
| 33 | TWO SIGMA INVESTMENTS#33 · 147,299 sh | 147,299 | $3.9M | <0.01% | -31.8% |
| 34 | Eversept Partners#34 · 128,286 sh | 128,286 | $3.4M | 0.18% | +2.5% |
| 35 | BOOTHBAY FUND MANAGEMENT#35 · 106,234 sh | 106,234 | $2.8M | 0.04% | -23.7% |
| 36 | ALKEON CAPITAL MANAGEMENT#36 · 102,101 sh | 102,101 | $2.7M | <0.01% | -55.0% |
| 37 | STIFEL FINANCIAL#37 · 85,480 sh | 85,480 | $2.3M | <0.01% | -1.0% |
| 38 | CHARLES SCHWAB INVESTMENT MANAGEMENT#38 · 80,583 sh | 80,583 | $2.1M | <0.01% | +373.5% |
| 39 | AWM Investment Company#39 · 80,000 sh | 80,000 | $2.1M | 0.18% | -52.9% |
| 40 | Bank of New York Mellon#40 · 76,330 sh | 76,330 | $2.0M | <0.01% | New |
| 41 | MORGAN STANLEY#41 · 74,940 sh | 74,940 | $2.0M | <0.01% | +9.2% |
| 42 | RENAISSANCE TECHNOLOGIES#42 · 71,399 sh | 71,399 | $1.9M | <0.01% | -31.0% |
| 43 | WELLINGTON MANAGEMENT GROUP LLP#43 · 70,913 sh | 70,913 | $1.9M | <0.01% | +18.6% |
| 44 | AdvisorShares Investments#44 · 70,748 sh | 70,748 | $1.9M | 0.23% | +72.5% |
| 45 | Nuveen#45 · 62,342 sh | 62,342 | $1.6M | <0.01% | New |
| 46 | UBS Group AG#46 · 58,697 sh | 58,697 | $1.5M | <0.01% | +240.3% |
| 47 | ACADIAN ASSET MANAGEMENT#47 · 55,509 sh | 55,509 | $1.5M | <0.01% | -7.6% |
| 48 | BRIDGEWAY CAPITAL MANAGEMENT#48 · 50,653 sh | 50,653 | $1.3M | 0.02% | -3.8% |
| 49 | XTX Topco Ltd#49 · 46,601 sh | 46,601 | $1.2M | 0.02% | +17.0% |
| 50 | TD ASSET MANAGEMENT#50 · 43,800 sh | 43,800 | $1.2M | <0.01% | 0.0% |
| 51 | DIMENSIONAL FUND ADVISORS#51 · 42,561 sh | 42,561 | $1.1M | <0.01% | +8.2% |
| 52 | Quantinno Capital Management#52 · 38,556 sh | 38,556 | $1.0M | <0.01% | +6.9% |
| 53 | ALPS ADVISORS#53 · 35,613 sh | 35,613 | $939.8K | <0.01% | +40.8% |
| 54 | RHUMBLINE ADVISERS#54 · 31,636 sh | 31,636 | $834.9K | <0.01% | New |
| 55 | MANUFACTURERS LIFE INSURANCE COMPANY, THE#55 · 30,233 sh | 30,233 | $797.8K | <0.01% | +27.3% |
| 56 | AMERICAN CENTURY COMPANIES#56 · 26,820 sh | 26,820 | $707.8K | <0.01% | +89.1% |
| 57 | WELLS FARGO & COMPANY#57 · 26,303 sh | 26,303 | $694.1K | <0.01% | +3229.5% |
| 58 | DEUTSCHE BANK AG\#58 · 26,051 sh | 26,051 | $687.5K | <0.01% | New |
| 59 | BROWN ADVISORY#59 · 25,000 sh | 25,000 | $659.8K | <0.01% | 0.0% |
| 60 | Allianz Asset Management GmbH#60 · 28,500 sh | 28,500 | $640.7K | <0.01% | 0.0% |
| 61 | ALLIANCEBERNSTEIN L.P.#61 · 27,300 sh | 27,300 | $613.7K | <0.01% | New |
| 62 | UNIVERSITY OF TEXAS/TEXAS AM INVESTMENT MANAGEMENT#62 · 22,175 sh | 22,175 | $585.2K | 0.07% | 0.0% |
| 63 | Squarepoint Ops#63 · 21,286 sh | 21,286 | $561.7K | <0.01% | -29.0% |
| 64 | CITIGROUP#64 · 20,745 sh | 20,745 | $547.5K | <0.01% | +120.0% |
| 65 | BANK OF AMERICA#65 · 19,101 sh | 19,101 | $504.1K | 0.00% | -25.6% |
| 66 | Revisor Wealth Management#66 · 17,130 sh | 17,130 | $452.1K | — | 0.0% |
| 67 | SCS Capital Management#67 · 16,840 sh | 16,840 | $444.4K | <0.01% | 0.0% |
| 68 | MetLife Investment Management#68 · 15,644 sh | 15,644 | $412.8K | <0.01% | New |
| 69 | Virtus Investment Advisers#69 · 15,239 sh | 15,239 | $402.2K | 0.09% | New |
| 70 | BANK OF NOVA SCOTIA#70 · 14,400 sh | 14,400 | $380.0K | <0.01% | New |
| 71 | Invesco Ltd.#71 · 14,255 sh | 14,255 | $376.2K | 0.00% | New |
| 72 | BARCLAYS PLC#72 · 13,318 sh | 13,318 | $351.5K | <0.01% | -46.8% |
| 73 | Vanguard Personalized Indexing Management#73 · 12,658 sh | 12,658 | $334.0K | <0.01% | -19.1% |
| 74 | MIRAE ASSET GLOBAL ETFS Ltd.#74 · 12,009 sh | 12,009 | $316.9K | <0.01% | New |
| 75 | JPMORGAN CHASE#75 · 10,904 sh | 10,904 | $306.1K | 0.00% | New |
| 76 | BANK OF MONTREAL#76 · 11,415 sh | 11,415 | $301.2K | <0.01% | +0.6% |
| 77 | Vanguard Global Advisers#77 · 10,649 sh | 10,649 | $281.0K | <0.01% | 0.0% |
| 78 | NEW YORK STATE COMMON RETIREMENT FUND#78 · 9,200 sh | 9,200 | $242.8K | <0.01% | New |
| 79 | GK Wealth Management#79 · 8,565 sh | 8,565 | $226.0K | — | New |
| 80 | SUSQUEHANNA INTERNATIONAL GROUP, LLP#80 · 7,998 sh | 7,998 | $211.1K | 0.00% | -96.6% |
| 81 | IEQ CAPITAL#81 · 7,988 sh | 7,988 | $210.8K | <0.01% | -66.3% |
| 82 | PROFUND ADVISORS#82 · 7,908 sh | 7,908 | $208.7K | <0.01% | New |
| 83 | Police & Firemen's Retirement System of New Jersey#83 · 7,725 sh | 7,725 | $203.9K | <0.01% | New |
| 84 | Persistent Asset Partners Ltd#84 · 7,698 sh | 7,698 | $203.2K | 0.06% | New |
| 85 | State of Wyoming#85 · 7,684 sh | 7,684 | $202.8K | 0.02% | New |
| 86 | FMR#86 · 6,325 sh | 6,325 | $166.9K | 0.00% | +0.2% |
| 87 | BNP PARIBAS FINANCIAL MARKETS#87 · 3,880 sh | 3,880 | $102.4K | 0.00% | +1135.7% |
| 88 | ROYAL BANK OF CANADA#88 · 3,575 sh | 3,575 | $95.0K | 0.00% | +8619.5% |
| 89 | Legal & General Group Plc#89 · 2,543 sh | 2,543 | $67.1K | 0.00% | New |
| 90 | WHITTIER OF NEVADA#90 · 2,482 sh | 2,482 | $63.8K | <0.01% | 0.0% |
| 91 | Russell Investments Group, Ltd.#91 · 2,400 sh | 2,400 | $63.3K | <0.01% | +684.3% |
| 92 | Ameritas Investment Partners#92 · 2,377 sh | 2,377 | $62.7K | <0.01% | New |
| 93 | Tower Research Capital (TRC)#93 · 1,996 sh | 1,996 | $52.7K | <0.01% | +2970.8% |
| 94 | PNC FINANCIAL SERVICES GROUP#94 · 1,200 sh | 1,200 | $31.7K | 0.00% | -0.5% |
| 95 | LOS ANGELES CAPITAL MANAGEMENT#95 · 1,006 sh | 1,006 | $26.5K | <0.01% | New |
| 96 | ROTHSCHILD INVESTMENT#96 · 685 sh | 685 | $18.1K | <0.01% | -59.3% |
| 97 | STRS OHIO#97 · 600 sh | 600 | $15.8K | <0.01% | New |
| 98 | EverSource Wealth Advisors#98 · 560 sh | 560 | $14.8K | <0.01% | +288.9% |
| 99 | Torren Management#99 · 558 sh | 558 | $14.7K | <0.01% | 0.0% |
| 100 | JONES FINANCIAL COMPANIES LLLP#100 · 533 sh | 533 | $14.4K | 0.00% | 0.0% |
Funds that sold out of ANRO in Q2 2026 (22)
Held ANRO at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| JENNISON ASSOCIATES386,426 sh | 386,426 | $8.7M |
| Qube Research & Technologies Ltd209,268 sh | 209,268 | $4.7M |
| Almitas Capital78,520 sh | 78,520 | $1.8M |
| D. E. Shaw45,343 sh | 45,343 | $1.0M |
| Hudson Bay Capital Management43,762 sh | 43,762 | $983.8K |
| 683 Capital Management40,000 sh | 40,000 | $899.2K |
| Brevan Howard Capital Management38,782 sh | 38,782 | $871.8K |
| BALYASNY ASSET MANAGEMENT L.P.32,111 sh | 32,111 | $721.9K |
| JANE STREET GROUP30,058 sh | 30,058 | $675.7K |
| Y-Intercept (Hong Kong) Ltd23,945 sh | 23,945 | $538.3K |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C.18,083 sh | 18,083 | $406.5K |
| POLEN CAPITAL MANAGEMENT16,613 sh | 16,613 | $373.5K |
| TORONTO DOMINION BANK13,434 sh | 13,434 | $302.0K |
| Clearstead Advisors13,312 sh | 13,312 | $299.3K |
| Catalyst Funds Management Pty Ltd11,400 sh | 11,400 | $256.3K |
| Diametric Capital10,315 sh | 10,315 | $231.9K |
| OMERS ADMINISTRATION9,700 sh | 9,700 | $218.1K |
| Advisory Services Network802 sh | 802 | $18.0K |
| SIMPLEX TRADING450 sh | 450 | $10.1K |
| GROUP ONE TRADING, L.P.400 sh | 400 | $9.0K |
| SIGNATUREFD41 sh | 41 | $922.00 |
| SHP Wealth Management25 sh | 25 | $562.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.