Who owns MannKind Corporation (MNKD)
Which tracked institutional funds hold MNKD, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See MNKD company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-18). 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 MNKD is one-sided between 2025-Q4 and 2026-Q1: 17 added or opened and 101 trimmed or exited — on balance reducing.
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
MNKD’s largest tracked holder by dollar value, VANGUARD GROUP 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 gap the other way — the median holder sizes MNKD more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in MNKD 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 251 tracked filers holding MNKD, 130 increased or opened the position and 126 reduced or closed it; over the same quarter, open-market insider Form 4s were net purchases.
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 MNKD 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 9
- VANGUARD CAPITAL MANAGEMENT LLC$32M
- VANGUARD PORTFOLIO MANAGEMENT LLC$8M
- VANGUARD FIDUCIARY TRUST CO$5M
- Point72 Asset Management, L.P.$3M
- Empowered Funds, LLC$2M
- Woodline Partners LP$2M
Full exits 21
- VANGUARD GROUP INC$87M
- Nitorum Capital, L.P.$30M
- ADAGE CAPITAL PARTNERS GP, L.L.C.$11M
- VOLORIDGE INVESTMENT MANAGEMENT, LLC$11M
- Eversept Partners, LP$11M
- EcoR1 Capital, LLC$9M
Largest adds
- MILLENNIUM MANAGEMENT LLC$13M
- MARSHALL WACE, LLP$2M
- Jefferies Financial Group Inc.$1M
- VICTORY CAPITAL MANAGEMENT INC$718K
- DRW Securities, LLC$626K
- Freestone Grove Partners LP$488K
Largest trims
- BlackRock, Inc.$94M
- STATE STREET CORP$37M
- Rubric Capital Management LP$34M
- GEODE CAPITAL MANAGEMENT, LLC$23M
- Avoro Capital Advisors LLC$20M
- CITADEL ADVISORS LLC$17M
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 |
|---|---|---|---|---|
| BlackRock, Inc. trimmed | 28,600,998 | $70M | 10.7% | 2026-Q1 |
| STATE STREET CORP added | 18,683,483 | $46M | 7.0% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 12,891,066 | $32M | 4.8% | 2026-Q1 |
| UBS Group AG added | 8,255,430 | $20M | 3.1% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 7,505,147 | $18M | 2.8% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 6,390,922 | $16M | 2.4% | 2026-Q1 |
| Frazier Life Sciences Management, L.P. added | 5,900,000 | $14M | 2.2% | 2026-Q1 |
| MORGAN STANLEY added | 5,793,147 | $14M | 2.2% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 4,953,295 | $12M | 1.9% | 2026-Q1 |
| 180 WEALTH ADVISORS, LLC added | 4,291,703 | $11M | 1.6% | 2026-Q1 |
| Rubric Capital Management LP trimmed | 3,620,413 | $9M | 1.4% | 2026-Q1 |
| FMR LLC trimmed | 3,477,253 | $9M | 1.3% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 3,383,677 | $8M | 1.3% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 3,171,824 | $8M | 1.2% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 3,004,507 | $7M | 1.1% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 2,942,320 | $7M | 1.1% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 2,895,874 | $7M | 1.1% | 2026-Q1 |
| NORTHERN TRUST CORP added | 2,675,950 | $7M | 1.0% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 2,549,067 | $6M | 1.0% | 2026-Q1 |
| Avoro Capital Advisors LLC trimmed | 2,200,000 | $5M | 0.8% | 2026-Q1 |
| Nuveen, LLC added | 2,164,715 | $5M | 0.8% | 2026-Q1 |
| Qube Research & Technologies Ltd added | 2,149,393 | $5M | 0.8% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 2,137,637 | $5M | 0.8% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 1,868,442 | $5M | 0.7% | 2026-Q1 |
| Invesco Ltd. trimmed | 1,505,604 | $4M | 0.6% | 2026-Q1 |
| MARSHALL WACE, LLP added | 1,430,701 | $4M | 0.5% | 2026-Q1 |
| Point72 Asset Management, L.P. added | 1,249,177 | $3M | 0.5% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 1,232,642 | $3M | 0.5% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC added | 1,232,078 | $3M | 0.5% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 1,190,431 | $3M | 0.4% | 2026-Q1 |
| FIRST TRUST ADVISORS LP added | 869,254 | $2M | 0.3% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 860,474 | $2M | 0.3% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 845,526 | $2M | 0.3% | 2026-Q1 |
| SCHRODER INVESTMENT MANAGEMENT GROUP | 827,853 | $2M | 0.3% | 2026-Q1 |
| Empowered Funds, LLC new | 765,356 | $2M | 0.3% | 2026-Q1 |
| SEI INVESTMENTS CO added | 726,396 | $2M | 0.3% | 2026-Q1 |
| Woodline Partners LP added | 719,134 | $2M | 0.3% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 715,862 | $2M | 0.3% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 698,137 | $2M | 0.3% | 2026-Q1 |
| SCOPIA CAPITAL MANAGEMENT LP | 694,961 | $2M | 0.3% | 2026-Q1 |
| Jefferies Financial Group Inc. added | 691,700 | $2M | 0.3% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. added | 283,010 | $2M | 0.2% | 2026-Q1 |
| DEUTSCHE BANK AG\ trimmed | 610,510 | $1M | 0.2% | 2026-Q1 |
| Rafferty Asset Management, LLC added | 581,530 | $1M | 0.2% | 2026-Q1 |
| Swiss National Bank | 574,700 | $1M | 0.2% | 2026-Q1 |
| 1492 Capital Management LLC added | 549,782 | $1M | 0.2% | 2026-Q1 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND trimmed | 547,086 | $1M | 0.2% | 2026-Q1 |
| Apollo Management Holdings, L.P. trimmed | 484,016 | $1M | 0.2% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 481,517 | $1M | 0.2% | 2026-Q1 |
| Man Group plc added | 474,620 | $1M | 0.2% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 434,707 | $1M | 0.2% | 2026-Q1 |
| CenterBook Partners LP new | 430,958 | $1M | 0.2% | 2026-Q1 |
| DELTEC ASSET MANAGEMENT LLC trimmed | 428,000 | $1M | 0.2% | 2026-Q1 |
| Caption Management, LLC added | 410,000 | $1M | 0.2% | 2026-Q1 |
| Aquatic Capital Management LLC added | 401,380 | $983K | 0.2% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 379,645 | $931K | 0.1% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 379,712 | $930K | 0.1% | 2026-Q1 |
| RHUMBLINE ADVISERS trimmed | 373,290 | $915K | 0.1% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 352,258 | $863K | 0.1% | 2026-Q1 |
| DRW Securities, LLC added | 305,121 | $748K | 0.1% | 2026-Q1 |
| PROFUND ADVISORS LLC added | 258,949 | $634K | 0.1% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 259,660 | $615K | 0.1% | 2026-Q1 |
| ALPS ADVISORS INC added | 250,809 | $614K | 0.1% | 2026-Q1 |
| BARCLAYS PLC trimmed | 240,812 | $590K | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 15,419,218 | $87M | 13.4% | 2025-Q4 stale |
| Nitorum Capital, L.P. trimmed | 5,325,823 | $30M | 4.6% | 2025-Q4 stale |
| TSP Capital Management Group, LLC added | 2,983,975 | $16M | 2.5% | 2025-Q3 stale |
| ADAGE CAPITAL PARTNERS GP, L.L.C. added | 1,894,000 | $11M | 1.6% | 2025-Q4 stale |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC added | 1,861,046 | $11M | 1.6% | 2025-Q4 stale |
| Eversept Partners, LP trimmed | 1,852,563 | $11M | 1.6% | 2025-Q4 stale |
| EcoR1 Capital, LLC new | 1,660,000 | $9M | 1.4% | 2025-Q4 stale |
| Connor, Clark & Lunn Investment Management Ltd. added | 1,481,807 | $8M | 1.2% | 2025-Q3 stale |
| Apis Capital Advisors, LLC new | 1,200,100 | $7M | 1.0% | 2025-Q4 stale |
| AXIOM INVESTORS LLC /DE added | 1,037,704 | $6M | 0.9% | 2025-Q4 stale |
| Stenham Asset Management Ltd new | 748,700 | $4M | 0.6% | 2025-Q1 stale |
| Parkman Healthcare Partners LLC trimmed | 640,356 | $4M | 0.6% | 2025-Q4 stale |
| OBERWEIS ASSET MANAGEMENT INC/ | 968,400 | $4M | 0.6% | 2025-Q2 stale |
| D. E. Shaw & Co., Inc. trimmed | 553,759 | $3M | 0.5% | 2025-Q4 stale |
| JANE STREET GROUP, LLC added | 548,257 | $3M | 0.5% | 2025-Q4 stale |
| TWO SIGMA ADVISERS, LP trimmed | 510,964 | $3M | 0.4% | 2025-Q4 stale |
| Trexquant Investment LP trimmed | 446,930 | $3M | 0.4% | 2025-Q4 stale |
| FEDERATED HERMES, INC. trimmed | 673,739 | $3M | 0.4% | 2025-Q2 stale |
| Squarepoint Ops LLC trimmed | 427,058 | $2M | 0.4% | 2025-Q4 stale |
| Calamos Advisors LLC added | 370,718 | $2M | 0.3% | 2025-Q4 stale |
| SUMMIT WEALTH GROUP LLC / CO new | 65,786 | $2M | 0.3% | 2025-Q3 stale |
| Manatuck Hill Partners, LLC added | 500,000 | $2M | 0.3% | 2025-Q2 stale |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 300,504 | $2M | 0.3% | 2025-Q4 stale |
| Soleus Capital Management, L.P. trimmed | 300,000 | $2M | 0.2% | 2025-Q3 stale |
| Hennion & Walsh Asset Management, Inc. trimmed | 195,932 | $1M | 0.2% | 2025-Q3 stale |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC added | 208,227 | $1M | 0.2% | 2025-Q1 stale |
| GSA CAPITAL PARTNERS LLP added | 233,558 | $874K | 0.1% | 2025-Q2 stale |
| Carrera Capital Advisors added | 167,386 | $842K | 0.1% | 2025-Q1 stale |
| Engineers Gate Manager LP trimmed | 151,839 | $815K | 0.1% | 2025-Q3 stale |
| PDT Partners, LLC added | 212,380 | $794K | 0.1% | 2025-Q2 stale |
| Walleye Capital LLC added | 121,148 | $687K | 0.1% | 2025-Q4 stale |
| AMERICAN CENTURY COMPANIES INC | 136,390 | $686K | 0.1% | 2025-Q1 stale |
| Corebridge Financial, Inc. trimmed | 131,937 | $664K | 0.1% | 2025-Q1 stale |
| Jain Global LLC new | 117,979 | $634K | 0.1% | 2025-Q3 stale |
| HUB Investment Partners, LLC added | 104,429 | $592K | 0.1% | 2025-Q4 stale |
| LOS ANGELES CAPITAL MANAGEMENT LLC trimmed | 106,440 | $591K | 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.