Security record · archived quarter
ZBIO
Zenas BioPharma, Inc. · Healthcare · Biotechnology
56Tracked holders
+4Δ holders
18.00MShares held
$649.25MReported value
+4New positions
−0Exits
Momentum inputs (comparable managers):
holder breadth +7.7% ·
share flow +30.0% ·
net new positions +7.1%
· formula
Broad accumulation: rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025
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 | n/a |
| Q3 2025 | 12 | 0 | 9.51M | $211.12M | +1 | −1 |
| Q2 2025 | 10 | +3 | 7.80M | $75.56M | +3 | n/a |
| Q1 2025 | 4 | -5 | 2.01M | $15.92M | n/a | −5 |
| Q4 2024 | 9 | -1 | 2.55M | $20.73M | +1 | −2 |
| Q3 2024 | 9 | +9 | 2.41M | $40.14M | +9 | n/a |
Who holds it · Q4 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Fidelity (FMR) ✦ | 7.70M | +59.8% | $279.74M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 2 | Federated Hermes, Inc. | 2.72M | n/a | $98.60M | 0.2% | n/c | 1 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 1.77M | +43.9% | $64.18M | 0.0% | ▲ Add | 3 | SEC ↗ ×7 |
| 4 | The Vanguard Group ✦ (passive) | 1.45M | +25.0% | $52.76M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 5 | Wellington Management ✦ | 855.33K | -0.3% | $31.06M | 0.0% | ▼ Trim | 6 | SEC ↗ ×3 |
| 6 | Geode Capital Management ✦ (passive) | 588.39K | +25.2% | $21.37M | 0.0% | ▲ Add | 6 | SEC ↗ ×2 |
| 7 | State Street Global Advisors ✦ (passive) | 438.29K | +16.1% | $15.91M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 8 | T. Rowe Price ✦ | 369.25K | -1.4% | $13.41M | 0.0% | ▼ Trim | 6 | SEC ↗ ×2 |
| 9 | Point72 Asset Management ✦ | 368.40K | New | $9.21M | 0.0% | New | 1 | SEC ↗ |
| 10 | Charles Schwab Investment… | 213.19K | n/a | $7.74M | 0.0% | n/c | 1 | SEC ↗ |
| 11 | Balyasny Asset Management L.P. | 193.15K | n/a | $7.01M | 0.0% | n/c | 1 | SEC ↗ |
| 12 | Invesco Ltd. | 187.97K | n/a | $6.83M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 13 | Northern Trust Corp | 155.37K | n/a | $5.64M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 14 | Goldman Sachs Group ✦ | 130.70K | New | $4.75M | 0.0% | New | 1 | SEC ↗ ×2 |
| 15 | Morgan Stanley ✦ | 128.34K | +44.6% | $4.66M | 0.0% | ▲ Add | 2 | SEC ↗ ×5 |
| 16 | AQR Capital Management ✦ | 78.22K | +218.2% | $2.84M | 0.0% | ▲ Add | 3 | SEC ↗ ×6 |
| 17 | UBS Group AG | 69.50K | n/a | $2.52M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 18 | Bank of New York Mellon Corp | 51.80K | n/a | $1.88M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 19 | Nuveen, LLC | 50.85K | n/a | $1.85M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 20 | Millennium Management ✦ | 49.16K | -31.6% | $1.78M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 21 | Bank Of America Corp /De/ | 47.16K | n/a | $1.71M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 22 | Barclays Plc | 34.38K | n/a | $1.25M | 0.0% | n/c | 1 | SEC ↗ |
| 23 | Swiss National Bank | 31.60K | n/a | $1.15M | 0.0% | n/c | 1 | SEC ↗ |
| 24 | Citadel Advisors ✦ | 24.46K | New | $888,106 | 0.0% | New | 1 | SEC ↗ |
| 25 | Rhumbline Advisers | 21.95K | n/a | $796,851 | 0.0% | n/c | 1 | SEC ↗ |
| 26 | JPMorgan Chase ✦ | 21.73K | +65.9% | $788,871 | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 27 | Wells Fargo & Company/Mn | 21.15K | n/a | $767,993 | 0.0% | n/c | 1 | SEC ↗ |
| 28 | Alliancebernstein L.P. | 18.35K | n/a | $666,289 | 0.0% | n/c | 1 | SEC ↗ |
| 29 | California State Teachers… | 15.70K | n/a | $570,103 | 0.0% | n/c | 1 | SEC ↗ |
| 30 | Squarepoint Ops LLC | 15.54K | n/a | $564,294 | 0.0% | n/c | 1 | SEC ↗ |
| 31 | Two Sigma Investments ✦ | 15.10K | -25.9% | $548,281 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 32 | Voya Investment Management Llc | 14.72K | n/a | $534,664 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 33 | Susquehanna International Group, Llp | 13.68K | n/a | $496,648 | 0.0% | n/c | 1 | SEC ↗ |
| 34 | Legal & General Group Plc | 13.03K | n/a | $473,010 | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 35 | Deutsche Bank Ag\ | 12.78K | n/a | $464,078 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 36 | Creative Planning | 12.27K | n/a | $445,633 | 0.0% | n/c | 1 | SEC ↗ |
| 37 | State Of Wisconsin Investment Board | 10.22K | n/a | $371,125 | 0.0% | n/c | 1 | SEC ↗ |
| 38 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 8.78K | n/a | $318,802 | 0.0% | n/c | 1 | SEC ↗ |
| 39 | UBS AM, a distinct business unit of… | 8.40K | n/a | $305,004 | 0.0% | n/c | 1 | SEC ↗ |
| 40 | Janus Henderson Group Plc | 7.90K | n/a | $286,573 | 0.0% | n/c | 1 | SEC ↗ |
| 41 | Mariner, LLC | 7.68K | n/a | $278,718 | 0.0% | n/c | 1 | SEC ↗ |
| 42 | Bnp Paribas Financial Markets | 7.14K | n/a | $259,181 | 0.0% | n/c | 1 | SEC ↗ |
| 43 | Marshall Wace ✦ | 7.10K | New | $257,801 | 0.0% | New | 1 | SEC ↗ |
| 44 | Manufacturers Life Insurance… | 6.26K | n/a | $227,155 | 0.0% | n/c | 1 | SEC ↗ |
| 45 | New York State Common Retirement… | 6.20K | n/a | $225,122 | 0.0% | n/c | 1 | SEC ↗ |
| 46 | Pnc Financial Services Group, Inc. | 5.82K | n/a | $211,470 | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 47 | ProShare Advisors LLC | 5.82K | n/a | $211,325 | 0.0% | n/c | 1 | SEC ↗ |
| 48 | Mirae Asset Global Investments Co.… | 2.61K | n/a | $94,696 | 0.0% | n/c | 1 | SEC ↗ |
| 49 | Citigroup Inc | 2.35K | n/a | $85,364 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 50 | Cwm, Llc | 2.18K | n/a | $79,000 | 0.0% | n/c | 1 | SEC ↗ |
| 51 | Simplex Trading, Llc | 1.97K | n/a | $71,675 | 0.0% | n/c | 1 | SEC ↗ |
| 52 | Russell Investments Group, Ltd. | 1.34K | n/a | $48,836 | 0.0% | n/c | 1 | SEC ↗ |
| 53 | Us Bancorp \De\ | 884 | n/a | $32,098 | 0.0% | n/c | 1 | SEC ↗ |
| 54 | Royal Bank Of Canada | 544 | n/a | $20,000 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 55 | Daiwa Securities Group Inc. | 179 | n/a | $6,000 | 0.0% | n/c | 1 | SEC ↗ |
| 56 | Osaic Holdings, Inc. | 3 | n/a | $109 | 0.0% | n/c | 1 | 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 | $9.21M | 0.0% |
| Goldman Sachs Group | $4.75M | 0.0% |
| Citadel Advisors | $888,106 | 0.0% |
| Marshall Wace | $257,801 | 0.0% |
Exited
| No tracked exits this quarter. |
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: Q4 2025 ·
Methodology ·
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