Who owns ALLO (ALLO)
Which tracked institutional funds hold ALLO, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See ALLO company fundamentals →
Ownership as of the 2026-Q1 13F filings. 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on ALLO is one-sided between 2025-Q4 and 2026-Q1: 61 added or opened and 10 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
ALLO’s largest tracked holder by dollar value, Pfizer Inc, sizes it at 20.9% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 20.9pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in ALLO divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 208 tracked filers holding ALLO, 129 increased or opened the position and 56 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in ALLO between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 13
- VANGUARD CAPITAL MANAGEMENT LLC$17M
- Boxer Capital Management, LLC$7M
- MPM BIOIMPACT LLC$5M
- JACOBS LEVY EQUITY MANAGEMENT, INC$5M
- VANGUARD PORTFOLIO MANAGEMENT LLC$4M
- GordonMD Global Investments LP$3M
Full exits 3
- VANGUARD GROUP INC$13M
- TWO SIGMA ADVISERS, LP$4M
- Kalehua Capital Management LLC$3M
Largest adds
- BlackRock, Inc.$22M
- TPG GP A, LLC$20M
- Pfizer Inc$20M
- STATE STREET CORP$17M
- PRIMECAP MANAGEMENT CO/CA/$9M
- PRICE T ROWE ASSOCIATES INC /MD/$9M
Largest trims
- NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO$2M
- JANE STREET GROUP, LLC$2M
- ACADIAN ASSET MANAGEMENT LLC$1M
- BNP PARIBAS FINANCIAL MARKETS$1M
- BARCLAYS PLC$488K
- GSA CAPITAL PARTNERS LLP$471K
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| Pfizer Inc | 22,032,040 | $50M | 10.1% | 2026-Q1 |
| BlackRock, Inc. added | 19,091,095 | $47M | 9.5% | 2026-Q1 |
| TPG GP A, LLC | 18,716,306 | $46M | 9.3% | 2026-Q1 |
| STATE STREET CORP added | 8,660,306 | $21M | 4.3% | 2026-Q1 |
| PRIMECAP MANAGEMENT CO/CA/ added | 8,379,840 | $20M | 4.2% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 6,921,350 | $17M | 3.4% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 6,793,620 | $17M | 3.4% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 5,380,902 | $13M | 2.7% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 5,375,456 | $13M | 2.7% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 4,124,178 | $10M | 2.1% | 2026-Q1 |
| Frazier Life Sciences Management, L.P. trimmed | 3,796,668 | $9M | 1.9% | 2026-Q1 |
| Woodline Partners LP added | 3,501,078 | $9M | 1.7% | 2026-Q1 |
| Patient Square Capital LP trimmed | 3,450,000 | $8M | 1.7% | 2026-Q1 |
| MARSHALL WACE, LLP added | 3,447,984 | $8M | 1.7% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 3,322,053 | $8M | 1.7% | 2026-Q1 |
| Candriam S.C.A. added | 2,997,318 | $7M | 1.5% | 2026-Q1 |
| Wildcat Capital Management, LLC | 2,920,787 | $7M | 1.5% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 2,766,244 | $7M | 1.4% | 2026-Q1 |
| Boxer Capital Management, LLC new | 2,725,000 | $7M | 1.4% | 2026-Q1 |
| D. E. Shaw & Co., Inc. added | 2,670,300 | $7M | 1.3% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 2,358,843 | $6M | 1.2% | 2026-Q1 |
| Nuveen, LLC added | 2,315,092 | $6M | 1.2% | 2026-Q1 |
| MPM BIOIMPACT LLC new | 2,242,933 | $5M | 1.1% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 2,139,328 | $5M | 1.1% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 2,134,473 | $5M | 1.1% | 2026-Q1 |
| JACOBS LEVY EQUITY MANAGEMENT, INC added | 2,013,508 | $5M | 1.0% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 1,694,112 | $4M | 0.8% | 2026-Q1 |
| UBS Group AG added | 1,604,090 | $4M | 0.8% | 2026-Q1 |
| FMR LLC added | 1,589,830 | $4M | 0.8% | 2026-Q1 |
| Aberdeen Group plc trimmed | 1,462,219 | $4M | 0.7% | 2026-Q1 |
| GordonMD Global Investments LP new | 1,430,000 | $3M | 0.7% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 1,396,533 | $3M | 0.7% | 2026-Q1 |
| DAFNA Capital Management LLC trimmed | 1,370,118 | $3M | 0.7% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 1,434,647 | $3M | 0.6% | 2026-Q1 |
| NORTHERN TRUST CORP added | 1,285,702 | $3M | 0.6% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 1,201,655 | $3M | 0.6% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. added | 1,182,816 | $3M | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 1,091,809 | $3M | 0.5% | 2026-Q1 |
| MORGAN STANLEY added | 998,845 | $2M | 0.5% | 2026-Q1 |
| Invesco Ltd. added | 684,519 | $2M | 0.3% | 2026-Q1 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE added | 654,180 | $2M | 0.3% | 2026-Q1 |
| TD Asset Management Inc added | 652,484 | $2M | 0.3% | 2026-Q1 |
| Voleon Capital Management LP new | 640,598 | $2M | 0.3% | 2026-Q1 |
| Raiffeisen Bank International AG trimmed | 700,000 | $2M | 0.3% | 2026-Q1 |
| IEQ CAPITAL, LLC added | 614,189 | $1M | 0.3% | 2026-Q1 |
| JANE STREET GROUP, LLC trimmed | 505,273 | $1M | 0.3% | 2026-Q1 |
| ALGERT GLOBAL LLC added | 463,980 | $1M | 0.2% | 2026-Q1 |
| Mitsubishi UFJ Asset Management Co., Ltd. added | 428,700 | $1M | 0.2% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 395,187 | $964K | 0.2% | 2026-Q1 |
| Creative Planning added | 364,809 | $890K | 0.2% | 2026-Q1 |
| CITIGROUP INC trimmed | 353,335 | $862K | 0.2% | 2026-Q1 |
| XTX Topco Ltd trimmed | 315,743 | $770K | 0.2% | 2026-Q1 |
| Harold Davidson & Associates Inc. added | 289,222 | $706K | 0.1% | 2026-Q1 |
| Rafferty Asset Management, LLC trimmed | 282,346 | $689K | 0.1% | 2026-Q1 |
| Headlands Technologies LLC added | 265,922 | $649K | 0.1% | 2026-Q1 |
| HSBC HOLDINGS PLC added | 260,404 | $638K | 0.1% | 2026-Q1 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 250,000 | $610K | 0.1% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC added | 244,592 | $597K | 0.1% | 2026-Q1 |
| Point72 Asset Management, L.P. added | 221,335 | $540K | 0.1% | 2026-Q1 |
| Tidal Investments LLC added | 219,072 | $535K | 0.1% | 2026-Q1 |
| Tema ETFs LLC new | 219,072 | $535K | 0.1% | 2026-Q1 |
| RHUMBLINE ADVISERS trimmed | 201,027 | $490K | 0.1% | 2026-Q1 |
| Russell Investments Group, Ltd. added | 182,344 | $445K | 0.1% | 2026-Q1 |
| Virtus Investment Advisers, LLC added | 180,588 | $441K | 0.1% | 2026-Q1 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO added | 177,875 | $434K | 0.1% | 2026-Q1 |
| OpenArc Corporate Advisory, LLC added | 172,258 | $420K | 0.1% | 2026-Q1 |
| LPL Financial LLC added | 172,250 | $420K | 0.1% | 2026-Q1 |
| PARTNERS CAPITAL INVESTMENT GROUP, LLP | 161,597 | $394K | 0.1% | 2026-Q1 |
| BARCLAYS PLC trimmed | 160,846 | $392K | 0.1% | 2026-Q1 |
| Cerity Partners LLC added | 157,235 | $384K | 0.1% | 2026-Q1 |
| Man Group plc trimmed | 154,683 | $377K | 0.1% | 2026-Q1 |
| GSA CAPITAL PARTNERS LLP trimmed | 151,722 | $370K | 0.1% | 2026-Q1 |
| CWM, LLC added | 147,157 | $359K | 0.1% | 2026-Q1 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 146,779 | $358K | 0.1% | 2026-Q1 |
| CHOREO, LLC added | 142,649 | $348K | 0.1% | 2026-Q1 |
| DEUTSCHE BANK AG\ trimmed | 128,319 | $313K | 0.1% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 126,760 | $309K | 0.1% | 2026-Q1 |
| PROFUND ADVISORS LLC added | 125,856 | $307K | 0.1% | 2026-Q1 |
| Smartleaf Asset Management LLC added | 137,874 | $306K | 0.1% | 2026-Q1 |
| WINTON GROUP Ltd added | 121,200 | $296K | 0.1% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. trimmed | 207,518 | $284K | 0.1% | 2026-Q1 |
| Squarepoint Ops LLC added | 116,379 | $284K | 0.1% | 2026-Q1 |
| Connor, Clark & Lunn Investment Management Ltd. added | 113,964 | $278K | 0.1% | 2026-Q1 |
| Mariner, LLC added | 108,722 | $265K | 0.1% | 2026-Q1 |
| Engineers Gate Manager LP added | 105,915 | $258K | 0.1% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 103,247 | $252K | 0.1% | 2026-Q1 |
| Polymer Capital Management (US) LLC new | 100,676 | $246K | 0.1% | 2026-Q1 |
| NWI MANAGEMENT LP | 100,000 | $244K | 0.0% | 2026-Q1 |
| VANGUARD GROUP INC added | 9,251,609 | $13M | 2.6% | 2025-Q4 stale |
| Capital World Investors trimmed | 11,150,000 | $13M | 2.6% | 2025-Q2 stale |
| Darwin Global Management, Ltd. added | 10,479,791 | $12M | 2.5% | 2025-Q2 stale |
| TWO SIGMA ADVISERS, LP added | 2,890,200 | $4M | 0.8% | 2025-Q4 stale |
| Kalehua Capital Management LLC new | 2,546,129 | $3M | 0.7% | 2025-Q4 stale |
| Foresite Capital Management VI LLC trimmed | 2,875,357 | $3M | 0.7% | 2025-Q2 stale |
| Vida Ventures Advisors, LLC | 1,798,163 | $2M | 0.5% | 2025-Q3 stale |
| GILEAD SCIENCES, INC. | 1,156,689 | $1M | 0.3% | 2025-Q2 stale |
| Lynx1 Capital Management LP trimmed | 546,119 | $677K | 0.1% | 2025-Q3 stale |
| Moloney Securities Asset Management, LLC added | 514,000 | $637K | 0.1% | 2025-Q3 stale |
| Curi RMB Capital, LLC added | 195,890 | $286K | 0.1% | 2025-Q1 stale |
| ZACKS INVESTMENT MANAGEMENT trimmed | 192,731 | $264K | 0.1% | 2025-Q4 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.