Security record
ZBIO
Zenas BioPharma, Inc. · Healthcare · Biotechnology
58Tracked holders
+3Δ holders
32.34MShares held
$814.38MReported value
+8New positions
−5Exits
Momentum inputs (comparable managers):
holder breadth +5.5% ·
share flow +18.8% ·
net new positions +5.2%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 58 | +3 | 32.34M | $814.38M | +8 | −5 |
| Q1 2026 | 57 | 0 | 27.25M | $547.68M | +9 | −9 |
| Q4 2025 | 56 | +4 | 18.00M | $649.25M | +4 | — |
| Q3 2025 | 12 | 0 | 9.51M | $211.12M | +1 | −1 |
| Q2 2025 | 10 | +3 | 7.80M | $75.56M | +3 | — |
| Q1 2025 | 4 | -5 | 2.01M | $15.92M | — | −5 |
| Q4 2024 | 9 | -1 | 2.55M | $20.73M | +1 | −2 |
| Q3 2024 | 9 | +9 | 2.41M | $40.14M | +9 | — |
Who holds it · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Fidelity (FMR) ✦ | 9.51M | +4.7% | $241.28M | 0.0% | ▲ Add | 5 | SEC ↗ ×3 |
| 2 | Federated Hermes, Inc. | 3.12M | -0.3% | $79.10M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 2.69M | +31.8% | $68.18M | 0.0% | ▲ Add | 5 | SEC ↗ ×8 |
| 4 | Capital International Investors | 2.50M | +2.8% | $63.52M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 5 | State Street Global Advisors ✦ (passive) | 2.06M | +39.7% | $52.16M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 6 | Wellington Management ✦ | 1.59M | +27.9% | $40.45M | 0.0% | ▲ Add | 8 | SEC ↗ ×6 |
| 7 | Vanguard Capital Management Llc | 1.35M | +8.8% | $34.39M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 8 | Bank Of America Corp /De/ | 1.23M | +217.0% | $31.25M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 9 | T. Rowe Price ✦ | 1.23M | +243.4% | $31.14M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 10 | Geode Capital Management ✦ (passive) | 882.65K | +34.6% | $22.41M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 11 | Alliancebernstein L.P. | 1.10M | +23.0% | $21.57M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 12 | Two Sigma Investments ✦ | 815.15K | +196.4% | $20.69M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 13 | Millennium Management ✦ | 660.47K | +38.5% | $16.76M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 14 | Balyasny Asset Management L.P. | 576.72K | -13.5% | $14.64M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 15 | Marshall Wace ✦ | 323.44K | -35.6% | $8.21M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 16 | Jennison Associates Llc | 314.05K | +25.6% | $7.97M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 17 | Charles Schwab Investment… | 302.08K | +34.6% | $7.67M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 18 | Northern Trust Corp | 281.14K | +44.4% | $7.14M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 19 | Goldman Sachs Group ✦ | 271.16K | -28.9% | $6.88M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 20 | Citadel Advisors ✦ | 195.78K | +192.8% | $4.97M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 21 | UBS Group AG | 178.09K | -51.5% | $4.52M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 22 | Bnp Paribas Financial Markets | 151.09K | +1411.0% | $3.83M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 23 | Morgan Stanley ✦ | 134.98K | +44.5% | $3.43M | 0.0% | ▲ Add | 4 | SEC ↗ ×7 |
| 24 | Squarepoint Ops LLC | 125.19K | +192.0% | $3.18M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 25 | Barclays Plc | 115.97K | +291.6% | $2.94M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 26 | Bank of New York Mellon Corp | 70.48K | +15.8% | $1.79M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 27 | Nuveen, LLC | 66.64K | -1.7% | $1.69M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 28 | Swiss National Bank | 53.20K | +68.3% | $1.35M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 29 | Citigroup Inc | 49.52K | +400.8% | $1.26M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 30 | UBS AM, a distinct business unit of… | 37.79K | +143.4% | $959,110 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 31 | Rhumbline Advisers | 34.24K | +27.7% | $869,128 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 32 | AQR Capital Management ✦ | 31.10K | -39.0% | $789,319 | 0.0% | ▼ Trim | 5 | SEC ↗ ×6 |
| 33 | Deutsche Bank Ag\ | 28.88K | +49.9% | $733,000 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 34 | State Of Wisconsin Investment Board | 26.92K | +29.4% | $683,280 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 35 | JPMorgan Chase ✦ | 24.45K | -2.6% | $660,518 | 0.0% | ▼ Trim | 4 | SEC ↗ ×3 |
| 36 | Wells Fargo & Company/Mn | 26.00K | +192.6% | $659,753 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 37 | Legal & General Group Plc | 20.02K | +91.9% | $508,182 | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 38 | Invesco Ltd. | 18.95K | -83.3% | $481,053 | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 39 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 17.42K | +21.1% | $442,936 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 40 | Point72 Asset Management ✦ | 16.14K | New | $409,532 | 0.0% | New | 1 | SEC ↗ |
| 41 | Nordea Investment Management Ab | 15.05K | New | $382,872 | 0.0% | New | 1 | SEC ↗ |
| 42 | Russell Investments Group, Ltd. | 12.74K | +368.2% | $323,341 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 43 | Creative Planning | 11.72K | -7.4% | $297,530 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 44 | New York State Common Retirement… | 10.30K | +66.1% | $261,414 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 45 | Massachusetts Financial Services Co… | 9.05K | New | $229,765 | 0.0% | New | 1 | SEC ↗ ×2 |
| 46 | Dimensional Fund Advisors Lp | 8.87K | New | $225,222 | 0.0% | New | 1 | SEC ↗ |
| 47 | Hrt Financial Lp | 8.88K | -65.5% | $225,000 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 48 | Quantinno Capital Management LP | 8.58K | -59.4% | $217,786 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 49 | Manufacturers Life Insurance… | 8.03K | New | $203,852 | 0.0% | New | 1 | SEC ↗ |
| 50 | Zurcher Kantonalbank (Zurich… | 7.56K | +11.6% | $191,949 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 51 | Pnc Financial Services Group, Inc. | 4.74K | -0.6% | $120,277 | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 52 | Mirae Asset Global Investments Co.… | 2.82K | +0.9% | $71,673 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 53 | Royal Bank Of Canada | 847 | New | $21,000 | 0.0% | New | 1 | SEC ↗ |
| 54 | Pacer Advisors, Inc. | 626 | New | $16,000 | 0.0% | New | 1 | SEC ↗ |
| 55 | BNP Paribas Asset Management… | 539 | New | $13,680 | 0.0% | New | 1 | SEC ↗ |
| 56 | Group One Trading Llc | 345 | +15.0% | $8,756 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 57 | Us Bancorp \De\ | 304 | -69.4% | $7,716 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 58 | Osaic Holdings, Inc. | 295 | -56.4% | $7,487 | 0.0% | ▼ Trim | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Point72 Asset Management | $409,532 | 0.0% |
| Nordea Investment Management… | $382,872 | 0.0% |
| Massachusetts Financial… | $229,765 | 0.0% |
| Dimensional Fund Advisors Lp | $225,222 | 0.0% |
| Manufacturers Life Insurance… | $203,852 | 0.0% |
| Royal Bank Of Canada | $21,000 | 0.0% |
| Pacer Advisors, Inc. | $16,000 | 0.0% |
| BNP Paribas Asset Management… | $13,680 | 0.0% |
Exited
| Susquehanna International… | $1.66M | was 0.0% |
| Schroder Investment… | $614,128 | was 0.0% |
| Corient Private Wealth LP | $329,320 | was 0.0% |
| Sei Investments Co | $242,142 | was 0.0% |
| Fifth Third Bancorp | $2,092 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 138 holders, 55.37M shares, $1.09B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2026 ·
Methodology ·
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