MANNKIND CORP MNKD
COM NEW · Common Stock · CUSIP 56400P706 · ISIN US56400P7069
Biopharmaceutical company
- SectorHealth care
- IndustryPharmaceutical Preparations
- HeadquartersDanbury, CT
- Founded1991
- Websitemannkindcorp.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($1.4m this quarter). Holder counts are more reliable. Shares outstanding: 307.1m as of 2025-10-24, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $5.38. Options: 11 managers hold calls ($19.8m notional), 6 hold puts ($6.0m).
Trends to Q3 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 176 |
| Q4 2022 | 191 |
| Q1 2023 | 188 |
| Q2 2023 | 186 |
| Q3 2023 | 196 |
| Q4 2023 | 201 |
| Q1 2024 | 204 |
| Q2 2024 | 211 |
| Q3 2024 | 232 |
| Q4 2024 | 244 |
| Q1 2025 | 258 |
| Q2 2025 | 234 |
| Q3 2025 | 234 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2023 | 85 | 71 |
| Q1 2024 | 93 | 92 |
| Q2 2024 | 95 | 85 |
| Q3 2024 | 118 | 69 |
| Q4 2024 | 123 | 76 |
| Q1 2025 | 119 | 97 |
| Q2 2025 | 98 | 119 |
| Q3 2025 | 109 | 122 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q4 2024 | $20.3m | $11.7m | 0.58 |
| Q1 2025 | $9.0m | $1.6m | 0.17 |
| Q2 2025 | $6.5m | $1.1m | 0.17 |
| Q3 2025 | $19.8m | $6.0m | 0.30 |
Biggest buyers
| Rubric Capital Management LP | New | +11.4m |
| UBS Group AG | Added | +3.1m |
| TSP Capital Management Group, LLC | New | +3.0m |
| JPMORGAN CHASE & CO | Added | +2.7m |
| WELLINGTON MANAGEMENT GROUP LLP | Added | +2.6m |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | New | +1.7m |
| Eversept Partners, LP | Added | +1.3m |
| CITADEL ADVISORS LLC | Added | +1.1m |
| MORGAN STANLEY | Added | +1.1m |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | Added | +1.1m |
Biggest sellers
| MILLENNIUM MANAGEMENT LLC | Reduced | -3.9m |
| TSP Capital Management Group, LLC | Sold out | -3.0m |
| ROYAL BANK OF CANADA | Reduced | -1.9m |
| D. E. Shaw & Co., Inc. | Reduced | -1.7m |
| TWO SIGMA ADVISERS, LP | Reduced | -1.6m |
| Qube Research & Technologies Ltd | Reduced | -1.5m |
| Avoro Capital Advisors LLC | Reduced | -1.4m |
| Parkman Healthcare Partners LLC | Reduced | -1.2m |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Sold out | -1.1m |
| OBERWEIS ASSET MANAGEMENT INC/ | Sold out | -968.4k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $5.9m1.1m shares |
| DIADEMA PARTNERS LP | Added | $5.6m1.0m shares |
| GROUP ONE TRADING LLC | Added | $3.1m579.4k shares |
| SIMPLEX TRADING, LLC | Reduced | $1.5m279.2k shares |
| CITADEL ADVISORS LLC | Added | $956.4k178.1k shares |
| GOLDMAN SACHS GROUP INC | New | $805.5k150.0k shares |
| JANE STREET GROUP, LLC | Added | $662.7k123.4k shares |
| DLD Asset Management, LP | New | $462.2k86.0k shares |
| Hudson Bay Capital Management LP | Unchanged | $402.8k75.0k shares |
| IMC-Chicago, LLC | New | $287.3k53.5k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $2.2m417.4k shares |
| SIMPLEX TRADING, LLC | Added | $1.2m226.0k shares |
| GROUP ONE TRADING LLC | Added | $1.1m207.4k shares |
| CITADEL ADVISORS LLC | Added | $866.7k161.4k shares |
| DLD Asset Management, LP | New | $532.1k99.0k shares |
| JANE STREET GROUP, LLC | Reduced | $57.5k10.7k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| STATE STREET CORP 13G · institution new · filed 2026-05-12 | 6.1% |
| Rubric Capital Management LP 13G · institution new · filed 2026-08-14 | 5.8% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-07-31 | 5.0% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD CAPITAL MANAGEMENT LLC)
Insider purchases and sales in Q3 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2023 | 0 | — | 1 | $885.2k | — |
| Q1 2024 | 0 | — | 0 | — | — |
| Q2 2024 | 0 | — | 2 | $259.3k | $259.3k |
| Q3 2024 | 0 | — | 4 | $1.3m | $760.9k |
| Q4 2024 | 0 | — | 2 | $1.3m | $1.3m |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 0 | — | 2 | $846.3k | $846.3k |
| Q3 2025 | 0 | — | 3 | $577.3k | $577.3k |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-09-16 | Tross Stuart A Chief People & Workpl Officer | Sold plan | $251.0k47.0k shares |
| 2025-07-16 | Binder Steven B. Director | Sold plan | $296.9k75.4k shares |
| 2025-07-16 | Thomson David EVP Genl Counsel & Secretary | Sold plan | $29.4k7.5k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q3 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 28.7m $154.2m | Reduced -389.8k |
| VANGUARD GROUP INC 0.00% of their portfolio | 17.6m $94.7m | Reduced -530.3k |
| Rubric Capital Management LP 0.82% of their portfolio | 11.4m $61.3m | New |
| STATE STREET CORP 0.00% of their portfolio | 10.7m $57.7m | Reduced -5.7k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 7.4m $39.7m | Reduced -232.1k |
| Nitorum Capital, L.P. 6.19% of their portfolio | 6.6m $35.2m | Reduced -450.1k |
| UBS Group AG 0.01% of their portfolio | 5.2m $27.9m | Added +3.1m |
| Avoro Capital Advisors LLC 0.31% of their portfolio | 4.5m $24.0m | Reduced -1.4m |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 4.1m $22.0m | Added +2.7m |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 4.0m $21.6m | Reduced -37.3k |
| MORGAN STANLEY 0.00% of their portfolio | 3.9m $20.7m | Added +1.1m |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 3.5m $18.6m | Added +2.6m |
| FMR LLC 0.00% of their portfolio | 3.3m $17.8m | Reduced -631.8k |
| TSP Capital Management Group, LLC 4.29% of their portfolio | 3.0m $16.0m | New |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 2.9m $15.8m | Reduced -438.2k |
| 180 WEALTH ADVISORS, LLC 1.88% of their portfolio | 2.9m $15.4m | Added +290.3k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 2.8m $14.9m | Added +3.3k |
| Nuveen, LLC 0.00% of their portfolio | 2.6m $14.1m | Reduced -537.1k |
| Qube Research & Technologies Ltd 0.02% of their portfolio | 2.6m $14.0m | Reduced -1.5m |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 2.6m $13.8m | Reduced -54.3k |
| Eversept Partners, LP 0.84% of their portfolio | 2.0m $11.0m | Added +1.3m |
| TWO SIGMA INVESTMENTS, LP 0.02% of their portfolio | 2.0m $10.8m | Reduced -515.8k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 1.9m $10.5m | Added +413.7k |
| TWO SIGMA ADVISERS, LP 0.02% of their portfolio | 1.8m $9.8m | Reduced -1.6m |
| Squarepoint Ops LLC 0.02% of their portfolio | 1.7m $9.2m | Added +249.8k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.01% of their portfolio | 1.7m $9.1m | New |
| Invesco Ltd. 0.00% of their portfolio | 1.6m $8.8m | Added +43.7k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.03% of their portfolio | 1.6m $8.6m | Added +47.8k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 1.5m $8.3m | Reduced -100 |
| Connor, Clark & Lunn Investment Management Ltd. 0.03% of their portfolio | 1.5m $8.0m | Added +112.1k |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 1.3m $7.0m | Added +1.1m |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.02% of their portfolio | 1.2m $6.6m | Added +1.1m |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 1.2m $6.5m | Reduced -14.3k |
| AXIOM INVESTORS LLC /DE 0.04% of their portfolio | 899.4k $4.8m | New |
| Bank of New York Mellon Corp 0.00% of their portfolio | 894.3k $4.8m | Reduced -47.4k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 856.9k $4.6m | Reduced -1.7m |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 850.8k $4.6m | Reduced -562.1k |
| BARCLAYS PLC 0.00% of their portfolio | 846.1k $4.5m | Reduced -235.2k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 736.7k $4.0m | Added +691.0k |
| DELTEC ASSET MANAGEMENT LLC 0.64% of their portfolio | 723.5k $3.9m | New |
| SCOPIA CAPITAL MANAGEMENT LP 0.52% of their portfolio | 695.0k $3.7m | Unchanged |
| Apollo Management Holdings, L.P. 0.05% of their portfolio | 664.1k $3.6m | Unchanged |
| Parkman Healthcare Partners LLC 0.39% of their portfolio | 656.1k $3.5m | Reduced -1.2m |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 599.1k $3.2m | Reduced -79.1k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 586.5k $3.1m | Reduced -3.9m |
| Swiss National Bank 0.00% of their portfolio | 559.9k $3.0m | Added +8.4k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 558.3k $3.0m | Reduced -309.2k |
| 1492 Capital Management LLC 1.10% of their portfolio | 504.2k $2.7m | Added +42.7k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 501.9k $2.7m | Reduced -427.7k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.00% of their portfolio | 485.1k $2.6m | New |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 477.2k $2.6m | Added +29.1k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 441.8k $2.4m | Reduced -7.5k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 433.8k $2.3m | Added +294.3k |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 412.4k $2.2m | Reduced -48.7k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 375.2k $2.0m | New |
| Legal & General Group Plc 0.00% of their portfolio | 319.2k $1.7m | Reduced -1.1k |
| Soleus Capital Management, L.P. 0.09% of their portfolio | 300.0k $1.6m | New |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 279.1k $1.5m | Added +4.5k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 267.9k $1.4m | Added +26.8k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 256.7k $1.4m | Added +14 |
| Voleon Capital Management LP 0.03% of their portfolio | 237.2k $1.3m | New |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 232.7k $1.2m | Added +89.3k |
| Calamos Advisors LLC 0.01% of their portfolio | 230.9k $1.2m | New |
| DIADEMA PARTNERS LP 0.79% of their portfolio | 212.5k $1.1m | New |
| Rafferty Asset Management, LLC 0.00% of their portfolio | 209.4k $1.1m | Reduced -25.9k |
| Mariner, LLC 0.00% of their portfolio | 206.7k $1.1m | Reduced -7.4k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 202.4k $1.1m | Reduced -1.9m |
| Aaron Wealth Advisors LLC 0.06% of their portfolio | 198.4k $1.1m | Reduced -2.0k |
| Hennion & Walsh Asset Management, Inc. 0.04% of their portfolio | 195.9k $1.1m | Reduced -36.5k |
| Bruce & Co., Inc. 0.32% of their portfolio | 195.1k $1.0m | Unchanged |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 187.7k $1.0m | Reduced -22.8k |
| Creative Planning 0.00% of their portfolio | 179.5k $964.1k | Added +64.1k |
| Schonfeld Strategic Advisors LLC 0.01% of their portfolio | 173.3k $930.4k | Reduced -732.2k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 171.8k $922.5k | Reduced -206.4k |
| MetLife Investment Management, LLC 0.00% of their portfolio | 171.0k $918.3k | Reduced -10.2k |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 168.7k $906.1k | Reduced -268.6k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 162.2k $871.1k | Added +2.2k |
| TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY 0.01% of their portfolio | 161.3k $866.0k | New |
| Stonepine Capital Management, LLC 0.69% of their portfolio | 157.6k $846.1k | New |
| ALPS ADVISORS INC 0.00% of their portfolio | 153.0k $821.5k | Reduced -11.0k |
| Engineers Gate Manager LP 0.01% of their portfolio | 151.8k $815.4k | Reduced -54.4k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 149.2k $801.2k | Reduced -5.8k |
| JANUS HENDERSON GROUP PLC 0.00% of their portfolio | 127.8k $686.7k | Unchanged |
| INTECH INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 127.4k $683.9k | Reduced -104.5k |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 120.5k $648.0k | Added +21.1k |
| Jain Global LLC 0.01% of their portfolio | 118.0k $633.5k | New |
| SIMPLEX TRADING, LLC 0.01% of their portfolio | 113.1k $607.0k | New |
| Balyasny Asset Management L.P. 0.00% of their portfolio | 112.5k $604.2k | Reduced -223.7k |
| HUB Investment Partners, LLC 0.02% of their portfolio | 104.0k $558.3k | Reduced -13.2k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 102.3k $549.4k | Added +83.4k |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio | 102.1k $548.4k | Added +14.1k |
| NEW WAVE WEALTH ADVISORS LLC 0.09% of their portfolio | 100.0k $455.5k | Added +50.0k |
| Man Group plc 0.00% of their portfolio | 98.7k $529.8k | Reduced -799.5k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 96.7k $519.3k | Added +26.3k |
| ARIZONA STATE RETIREMENT SYSTEM 0.00% of their portfolio | 85.3k $458.2k | Added +1.2k |
| Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio | 85.2k $457.4k | Added +21.9k |
| SG Americas Securities, LLC 0.00% of their portfolio | 79.9k $429.0k | Added +44.1k |
| GLOBEFLEX CAPITAL L P 0.06% of their portfolio | 73.6k $395.2k | Reduced -17.7k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.00% of their portfolio | 73.3k $393.6k | Unchanged |
| TEACHER RETIREMENT SYSTEM OF TEXAS 0.00% of their portfolio | 70.9k $380.9k | Reduced -6.8k |