Who owns State Street SPDR S&P MidCap 400SM ETF Trust (MDY)
Which tracked institutional funds hold MDY, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See MDY company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-02). 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 MDY is one-sided between 2026-Q1 and 2026-Q2: 483 added or opened and 111 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
MDY’s largest tracked holder by dollar value, BANK OF AMERICA CORP /DE/, sizes it at 0.1% of its own reported 13F book, while the median holder sizes it at 0.2% of theirs — a 0.1pp gap the other way — the median holder sizes MDY more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in MDY 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 1482 tracked filers holding MDY, 483 increased or opened the position and 642 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 MDY 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 49
- MEITAV INVESTMENT HOUSE LTD$290M
- TWO SIGMA INVESTMENTS, LP$29M
- BASSWOOD CAPITAL MANAGEMENT, L.L.C.$27M
- Passaic Partners LLC$19M
- Fi3 FINANCIAL ADVISORS, LLC$19M
- Redhawk Wealth Advisors, Inc.$11M
Full exits 63
- HighTower Advisors, LLC$145M
- SG Americas Securities, LLC$95M
- PEAPACK GLADSTONE FINANCIAL CORP$31M
- HERITAGE INVESTORS MANAGEMENT CORP$30M
- Janney Montgomery Scott LLC$27M
- Cambridge Investment Research Advisors, Inc.$23M
Largest adds
- BANK OF AMERICA CORP /DE/$106M
- NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO$102M
- CITIGROUP INC$94M
- GOLDMAN SACHS GROUP INC$93M
- WELLS FARGO & COMPANY/MN$93M
- NORTHERN TRUST CORP$84M
Largest trims
- CITADEL ADVISORS LLC$193M
- BNP PARIBAS FINANCIAL MARKETS$94M
- MORGAN STANLEY$83M
- SUSQUEHANNA INTERNATIONAL GROUP, LLP$34M
- BALYASNY ASSET MANAGEMENT L.P.$28M
- MILLENNIUM MANAGEMENT LLC$26M
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 |
|---|---|---|---|---|
| BANK OF AMERICA CORP /DE/ trimmed | 1,946,508 | $1.4B | 9.9% | 2026-Q2 |
| MORGAN STANLEY trimmed | 1,235,352 | $869M | 6.3% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN trimmed | 1,178,967 | $829M | 6.0% | 2026-Q2 |
| NORTHERN TRUST CORP trimmed | 1,049,595 | $738M | 5.3% | 2026-Q2 |
| US BANCORP \DE\ trimmed | 963,812 | $678M | 4.9% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 906,280 | $637M | 4.6% | 2026-Q2 |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO added | 903,341 | $635M | 4.6% | 2026-Q2 |
| Pathstone Holdings, LLC added | 849,491 | $597M | 4.3% | 2026-Q2 |
| PNC Financial Services Group, Inc. trimmed | 693,381 | $488M | 3.5% | 2026-Q2 |
| UBS Group AG added | 651,062 | $458M | 3.3% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC trimmed | 488,839 | $344M | 2.5% | 2026-Q2 |
| BANK OF MONTREAL /CAN/ trimmed | 477,136 | $336M | 2.4% | 2026-Q2 |
| MEITAV INVESTMENT HOUSE LTD new | 412,840 | $290M | 2.1% | 2026-Q2 |
| ROYAL BANK OF CANADA trimmed | 291,654 | $205M | 1.5% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 285,765 | $199M | 1.4% | 2026-Q2 |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC trimmed | 283,087 | $199M | 1.4% | 2026-Q2 |
| MAI Capital Management added | 271,019 | $191M | 1.4% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. trimmed | 244,920 | $151M | 1.1% | 2026-Q2 |
| Creative Planning trimmed | 236,181 | $166M | 1.2% | 2026-Q2 |
| Corient Private Wealth LP trimmed | 226,710 | $159M | 1.2% | 2026-Q2 |
| Arvest Bank Trust Division trimmed | 224,334 | $158M | 1.1% | 2026-Q2 |
| Conservest Capital Advisors, Inc. trimmed | 208,394 | $147M | 1.1% | 2026-Q2 |
| CITIGROUP INC added | 178,846 | $126M | 0.9% | 2026-Q2 |
| LPL Financial LLC added | 166,179 | $117M | 0.8% | 2026-Q2 |
| Generali Asset Management SPA SGR added | 164,778 | $116M | 0.8% | 2026-Q2 |
| Bank of New York Mellon Corp trimmed | 161,143 | $113M | 0.8% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 157,630 | $111M | 0.8% | 2026-Q2 |
| WADDELL & ASSOCIATES, LLC added | 154,726 | $109M | 0.8% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 143,902 | $101M | 0.7% | 2026-Q2 |
| Welch & Forbes LLC trimmed | 142,173 | $100M | 0.7% | 2026-Q2 |
| Cerity Partners LLC added | 139,760 | $98M | 0.7% | 2026-Q2 |
| COMMERCE BANK trimmed | 139,449 | $98M | 0.7% | 2026-Q2 |
| WHITTIER TRUST CO trimmed | 131,409 | $92M | 0.7% | 2026-Q2 |
| TRUIST FINANCIAL CORP added | 120,108 | $84M | 0.6% | 2026-Q2 |
| EP Wealth Advisors, LLC added | 119,454 | $84M | 0.6% | 2026-Q2 |
| Hills Bank & Trust Co trimmed | 111,587 | $78M | 0.6% | 2026-Q2 |
| BROWN ADVISORY INC trimmed | 110,435 | $78M | 0.6% | 2026-Q2 |
| Mariner, LLC trimmed | 104,807 | $74M | 0.5% | 2026-Q2 |
| Focus Partners Wealth trimmed | 101,693 | $72M | 0.5% | 2026-Q2 |
| MONTAG A & ASSOCIATES INC trimmed | 101,656 | $72M | 0.5% | 2026-Q2 |
| OSAIC HOLDINGS, INC. added | 96,420 | $68M | 0.5% | 2026-Q2 |
| ENVESTNET ASSET MANAGEMENT INC added | 89,737 | $63M | 0.5% | 2026-Q2 |
| Cetera Investment Advisers trimmed | 88,675 | $62M | 0.5% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC trimmed | 85,773 | $60M | 0.4% | 2026-Q2 |
| Atlantic Union Bankshares Corp trimmed | 83,440 | $59M | 0.4% | 2026-Q2 |
| CIBC WORLD MARKET INC. added | 83,263 | $59M | 0.4% | 2026-Q2 |
| WASHINGTON TRUST Co trimmed | 81,402 | $57M | 0.4% | 2026-Q2 |
| BLAIR WILLIAM & CO/IL added | 76,091 | $54M | 0.4% | 2026-Q2 |
| Henshaw Capital LLC trimmed | 73,000 | $51M | 0.4% | 2026-Q2 |
| STIFEL FINANCIAL CORP trimmed | 72,534 | $51M | 0.4% | 2026-Q2 |
| BALYASNY ASSET MANAGEMENT L.P. trimmed | 69,882 | $49M | 0.4% | 2026-Q2 |
| CAPTRUST FINANCIAL ADVISORS added | 67,963 | $48M | 0.3% | 2026-Q2 |
| COMMONWEALTH EQUITY SERVICES, LLC trimmed | 66,690 | $47M | 0.3% | 2026-Q2 |
| Portland Global Advisors LLC trimmed | 63,792 | $45M | 0.3% | 2026-Q2 |
| BARTLETT & CO. WEALTH MANAGEMENT LLC added | 63,175 | $45M | 0.3% | 2026-Q2 |
| Midwest Trust Co trimmed | 62,409 | $44M | 0.3% | 2026-Q2 |
| WHITTIER TRUST CO OF NEVADA INC trimmed | 62,245 | $43M | 0.3% | 2026-Q2 |
| SMITH, MOORE & CO. trimmed | 60,828 | $43M | 0.3% | 2026-Q2 |
| CITIZENS FINANCIAL GROUP INC/RI added | 59,492 | $42M | 0.3% | 2026-Q2 |
| PITTENGER & ANDERSON INC trimmed | 58,735 | $41M | 0.3% | 2026-Q2 |
| Rockefeller Capital Management L.P. added | 57,763 | $41M | 0.3% | 2026-Q2 |
| OFS Enterprise LLC added | 56,835 | $40M | 0.3% | 2026-Q2 |
| PINNACLE ASSOCIATES LTD trimmed | 56,215 | $40M | 0.3% | 2026-Q2 |
| MetLife Investment Management, LLC trimmed | 54,500 | $38M | 0.3% | 2026-Q2 |
| MassMutual Private Wealth & Trust, FSB trimmed | 54,236 | $38M | 0.3% | 2026-Q2 |
| Baird Financial Group, Inc. trimmed | 52,970 | $37M | 0.3% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 50,915 | $36M | 0.3% | 2026-Q2 |
| Lido Advisors, LLC trimmed | 50,859 | $36M | 0.3% | 2026-Q2 |
| Crewe Advisors LLC trimmed | 50,124 | $35M | 0.3% | 2026-Q2 |
| MIRAE ASSET SECURITIES (USA) INC. trimmed | 50,072 | $35M | 0.3% | 2026-Q2 |
| FIFTH THIRD BANCORP added | 49,926 | $35M | 0.3% | 2026-Q2 |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC added | 49,110 | $34M | 0.2% | 2026-Q2 |
| Pinnacle Financial Partners, Inc. trimmed | 46,580 | $33M | 0.2% | 2026-Q2 |
| Chicago Partners Investment Group LLC trimmed | 45,473 | $31M | 0.2% | 2026-Q2 |
| MERCER GLOBAL ADVISORS INC /ADV added | 44,808 | $32M | 0.2% | 2026-Q2 |
| Savant Capital, LLC added | 44,623 | $30M | 0.2% | 2026-Q2 |
| Clearstead Advisors, LLC added | 44,423 | $31M | 0.2% | 2026-Q2 |
| LCM Capital Management Inc added | 44,192 | $31M | 0.2% | 2026-Q2 |
| Holt Capital Advisors, L.L.C. dba Holt Capital Partners, L.P. trimmed | 44,041 | $31M | 0.2% | 2026-Q2 |
| SCS Capital Management LLC trimmed | 43,991 | $31M | 0.2% | 2026-Q2 |
| IFG Advisors, LLC trimmed | 43,944 | $31M | 0.2% | 2026-Q2 |
| Ascent Wealth Partners, LLC added | 43,120 | $30M | 0.2% | 2026-Q2 |
| CUMBERLAND ADVISORS INC trimmed | 42,307 | $30M | 0.2% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 41,640 | $29M | 0.2% | 2026-Q2 |
| Klingman & Associates, LLC trimmed | 41,488 | $29M | 0.2% | 2026-Q2 |
| Tandem Wealth Advisors LLC added | 41,156 | $29M | 0.2% | 2026-Q2 |
| FMR LLC added | 41,042 | $29M | 0.2% | 2026-Q2 |
| MARSHALL WACE, LLP trimmed | 39,554 | $28M | 0.2% | 2026-Q2 |
| BASSWOOD CAPITAL MANAGEMENT, L.L.C. | 38,082 | $27M | 0.2% | 2026-Q2 |
| CONNING INC. | 38,022 | $27M | 0.2% | 2026-Q2 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND added | 38,000 | $27M | 0.2% | 2026-Q2 |
| Curi Capital, LLC trimmed | 37,574 | $26M | 0.2% | 2026-Q2 |
| JOHNSON INVESTMENT COUNSEL INC trimmed | 36,927 | $26M | 0.2% | 2026-Q2 |
| 1ST SOURCE BANK added | 36,184 | $25M | 0.2% | 2026-Q2 |
| Madison Asset Management, LLC trimmed | 35,518 | $25M | 0.2% | 2026-Q2 |
| Kestra Advisory Services, LLC trimmed | 35,015 | $25M | 0.2% | 2026-Q2 |
| CITADEL ADVISORS LLC trimmed | 34,729 | $24M | 0.2% | 2026-Q2 |
| SummitTX Capital, L.P. trimmed | 34,353 | $24M | 0.2% | 2026-Q2 |
| Tiller Private Wealth, Inc. added | 33,454 | $24M | 0.2% | 2026-Q2 |
| MML INVESTORS SERVICES, LLC added | 33,271 | $23M | 0.2% | 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.