Who owns ZWS
Which tracked institutional funds hold ZWS, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See ZWS company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 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
128 tracked funds added or opened ZWS while 73 trimmed or exited it between 2026-Q1 and 2026-Q2 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
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
ZWS’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in ZWS 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 2026-Q1 and 2026-Q2, across 405 tracked filers holding ZWS, 225 increased or opened the position and 208 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
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 ZWS between the 2026-Q1 and 2026-Q2 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 14
- Jupiter Topco LLC$172M
- Aptus Capital Advisors, LLC$7M
- AGF MANAGEMENT LTD$3M
- FOX RUN MANAGEMENT, L.L.C.$2M
- USS Investment Management Ltd$1M
- Trium Capital LLP$1M
Full exits 33
- JANUS HENDERSON GROUP PLC$148M
- T. Rowe Price Investment Management, Inc.$57M
- Amundi$41M
- DekaBank Deutsche Girozentrale$36M
- KBC Group NV$10M
- BESSEMER GROUP INC$9M
Largest adds
- BlackRock, Inc.$336M
- Crescent Grove Advisors, LLC$59M
- VANGUARD PORTFOLIO MANAGEMENT LLC$57M
- NORGES BANK$52M
- STATE STREET CORP$50M
- VANGUARD CAPITAL MANAGEMENT LLC$41M
Largest trims
- KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC$37M
- GOLDMAN SACHS GROUP INC$36M
- MILLENNIUM MANAGEMENT LLC$22M
- JANE STREET GROUP, LLC$21M
- Qube Research & Technologies Ltd$13M
- ALLIANCEBERNSTEIN L.P.$12M
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 24,566,503 | $1.2B | 17.7% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 8,988,098 | $454M | 6.5% | 2026-Q2 |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC trimmed | 8,892,334 | $449M | 6.4% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 7,014,394 | $354M | 5.1% | 2026-Q2 |
| STATE STREET CORP added | 5,986,944 | $303M | 4.3% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 5,504,857 | $278M | 4.0% | 2026-Q2 |
| Invesco Ltd. added | 4,649,274 | $235M | 3.4% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 3,842,182 | $194M | 2.8% | 2026-Q2 |
| BECK MACK & OLIVER LLC trimmed | 3,431,406 | $173M | 2.5% | 2026-Q2 |
| Jupiter Topco LLC new | 3,409,405 | $172M | 2.5% | 2026-Q2 |
| FIRST TRUST ADVISORS LP added | 3,179,833 | $161M | 2.3% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. trimmed | 3,045,939 | $137M | 1.9% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ trimmed | 2,756,245 | $139M | 2.0% | 2026-Q2 |
| Impax Asset Management Group plc added | 2,633,758 | $133M | 1.9% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 2,593,197 | $131M | 1.9% | 2026-Q2 |
| Crescent Grove Advisors, LLC added | 2,349,563 | $119M | 1.7% | 2026-Q2 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. trimmed | 2,284,516 | $115M | 1.6% | 2026-Q2 |
| MORGAN STANLEY added | 2,176,223 | $110M | 1.6% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 2,150,657 | $109M | 1.6% | 2026-Q2 |
| NORGES BANK added | 2,096,197 | $106M | 1.5% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN trimmed | 1,826,934 | $92M | 1.3% | 2026-Q2 |
| FULLER & THALER ASSET MANAGEMENT, INC. added | 1,794,463 | $91M | 1.3% | 2026-Q2 |
| NORTHERN TRUST CORP added | 1,772,636 | $90M | 1.3% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 1,450,412 | $73M | 1.0% | 2026-Q2 |
| Nuveen, LLC added | 1,297,310 | $66M | 0.9% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC trimmed | 1,287,614 | $65M | 0.9% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 1,195,815 | $60M | 0.9% | 2026-Q2 |
| Driehaus Capital Management LLC added | 1,195,710 | $60M | 0.9% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC trimmed | 1,130,367 | $57M | 0.8% | 2026-Q2 |
| Bank of New York Mellon Corp added | 1,092,566 | $55M | 0.8% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 1,073,115 | $54M | 0.8% | 2026-Q2 |
| FMR LLC added | 1,069,447 | $54M | 0.8% | 2026-Q2 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 1,005,759 | $51M | 0.7% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 976,740 | $49M | 0.7% | 2026-Q2 |
| Fisher Asset Management, LLC trimmed | 862,675 | $44M | 0.6% | 2026-Q2 |
| UBS Group AG trimmed | 858,771 | $43M | 0.6% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC added | 855,545 | $43M | 0.6% | 2026-Q2 |
| Legal & General Group Plc added | 796,834 | $40M | 0.6% | 2026-Q2 |
| FEDERATED HERMES, INC. added | 718,205 | $36M | 0.5% | 2026-Q2 |
| BROWN ADVISORY INC trimmed | 661,020 | $33M | 0.5% | 2026-Q2 |
| Select Equity Group, L.P. added | 653,188 | $33M | 0.5% | 2026-Q2 |
| FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ added | 585,050 | $30M | 0.4% | 2026-Q2 |
| ENVESTNET ASSET MANAGEMENT INC trimmed | 570,257 | $29M | 0.4% | 2026-Q2 |
| Public Sector Pension Investment Board trimmed | 510,247 | $26M | 0.4% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 496,887 | $25M | 0.4% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 470,501 | $24M | 0.3% | 2026-Q2 |
| OBERWEIS ASSET MANAGEMENT INC/ added | 468,453 | $24M | 0.3% | 2026-Q2 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 443,159 | $22M | 0.3% | 2026-Q2 |
| CIBC Bancorp USA Inc. trimmed | 427,253 | $22M | 0.3% | 2026-Q2 |
| JENNISON ASSOCIATES LLC trimmed | 409,615 | $21M | 0.3% | 2026-Q2 |
| SEI INVESTMENTS CO added | 398,020 | $20M | 0.3% | 2026-Q2 |
| STIFEL FINANCIAL CORP trimmed | 393,107 | $20M | 0.3% | 2026-Q2 |
| ROYAL BANK OF CANADA trimmed | 373,954 | $19M | 0.3% | 2026-Q2 |
| RHUMBLINE ADVISERS trimmed | 355,635 | $18M | 0.3% | 2026-Q2 |
| California Public Employees Retirement System added | 334,450 | $17M | 0.2% | 2026-Q2 |
| Swiss National Bank added | 302,600 | $15M | 0.2% | 2026-Q2 |
| MAI Capital Management added | 294,866 | $15M | 0.2% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 284,693 | $14M | 0.2% | 2026-Q2 |
| Perpetual Ltd added | 277,667 | $14M | 0.2% | 2026-Q2 |
| Qube Research & Technologies Ltd trimmed | 254,186 | $13M | 0.2% | 2026-Q2 |
| DUFF & PHELPS INVESTMENT MANAGEMENT CO added | 253,751 | $13M | 0.2% | 2026-Q2 |
| Trexquant Investment LP trimmed | 223,782 | $11M | 0.2% | 2026-Q2 |
| CITIGROUP INC added | 221,016 | $11M | 0.2% | 2026-Q2 |
| NEUBERGER BERMAN GROUP LLC trimmed | 214,250 | $11M | 0.2% | 2026-Q2 |
| LOS ANGELES CAPITAL MANAGEMENT LLC added | 206,169 | $10M | 0.1% | 2026-Q2 |
| Arkadios Wealth Advisors added | 192,830 | $10M | 0.1% | 2026-Q2 |
| NORDEA INVESTMENT MANAGEMENT AB added | 189,301 | $10M | 0.1% | 2026-Q2 |
| STATE OF WISCONSIN INVESTMENT BOARD trimmed | 188,252 | $10M | 0.1% | 2026-Q2 |
| PEREGRINE CAPITAL MANAGEMENT LLC trimmed | 180,041 | $9M | 0.1% | 2026-Q2 |
| Mariner, LLC trimmed | 177,914 | $9M | 0.1% | 2026-Q2 |
| PARADIGM CAPITAL MANAGEMENT INC/NY added | 174,900 | $9M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 173,595 | $9M | 0.1% | 2026-Q2 |
| ALGERT GLOBAL LLC added | 169,860 | $9M | 0.1% | 2026-Q2 |
| MIROVA trimmed | 165,567 | $8M | 0.1% | 2026-Q2 |
| TUDOR INVESTMENT CORP ET AL trimmed | 164,073 | $8M | 0.1% | 2026-Q2 |
| Universal- Beteiligungs- und Servicegesellschaft mbH added | 162,878 | $8M | 0.1% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 162,382 | $8M | 0.1% | 2026-Q2 |
| LBP AM SA trimmed | 160,607 | $8M | 0.1% | 2026-Q2 |
| PRUDENTIAL FINANCIAL INC added | 154,565 | $8M | 0.1% | 2026-Q2 |
| Zurcher Kantonalbank (Zurich Cantonalbank) trimmed | 153,634 | $8M | 0.1% | 2026-Q2 |
| VOYA INVESTMENT MANAGEMENT LLC added | 150,985 | $8M | 0.1% | 2026-Q2 |
| Candriam S.C.A. trimmed | 146,505 | $7M | 0.1% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd added | 143,082 | $7M | 0.1% | 2026-Q2 |
| Aptus Capital Advisors, LLC new | 142,364 | $7M | 0.1% | 2026-Q2 |
| Creative Planning added | 137,287 | $7M | 0.1% | 2026-Q2 |
| Hillsdale Investment Management Inc. added | 135,480 | $7M | 0.1% | 2026-Q2 |
| Campbell & CO Investment Adviser LLC added | 134,197 | $7M | 0.1% | 2026-Q2 |
| Man Group plc trimmed | 126,166 | $6M | 0.1% | 2026-Q2 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND trimmed | 125,886 | $6M | 0.1% | 2026-Q2 |
| TRUIST FINANCIAL CORP trimmed | 121,411 | $6M | 0.1% | 2026-Q2 |
| VAN ECK ASSOCIATES CORP added | 120,372 | $6M | 0.1% | 2026-Q2 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. added | 119,995 | $6M | 0.1% | 2026-Q2 |
| HUNTINGTON NATIONAL BANK trimmed | 114,958 | $6M | 0.1% | 2026-Q2 |
| PDT Partners, LLC trimmed | 113,666 | $6M | 0.1% | 2026-Q2 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ added | 113,581 | $8M | 0.1% | 2026-Q2 |
| Vestmark Advisory Solutions, Inc. trimmed | 111,844 | $6M | 0.1% | 2026-Q2 |
| Connor, Clark & Lunn Investment Management Ltd. added | 111,380 | $6M | 0.1% | 2026-Q2 |
| Illinois Municipal Retirement Fund trimmed | 110,473 | $6M | 0.1% | 2026-Q2 |
| Fiera Capital Corp trimmed | 107,613 | $5M | 0.1% | 2026-Q2 |
| Triodos Investment Management BV added | 100,000 | $5M | 0.1% | 2026-Q2 |
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.