MannKind Corp
MNKD
234 hedge funds and large institutions have $929M invested in MannKind Corp in 2025 Q3 according to their latest regulatory filings, with 51 funds opening new positions, 59 increasing their positions, 75 reducing their positions, and 46 closing their positions.
229% more call options, than puts
Call options by funds: $19.8M | Put options by funds: $6.02M
200% more funds holding in top 10
Funds holding in top 10: 1 → 3 (+2)
46% more capital invested
Capital invested by funds: $637M → $929M (+$293M)
11% more first-time investments, than exits
New positions opened: 51 | Existing positions closed: 46
1.29% more ownership
Funds ownership: 55.03% → 56.32% (+1.3%)
1% more funds holding
Funds holding: 232 → 234 (+2)
21% less repeat investments, than reductions
Existing positions increased: 59 | Existing positions reduced: 75
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
RCMNY
Rubric Capital Management (New York)
New York
|
+$50.1M |
| 2 |
UBS Group
Zurich,
Switzerland
|
+$13.6M |
| 3 |
TCMG
TSP Capital Management Group
Summit,
New Jersey
|
+$13.1M |
| 4 |
Wellington Management Group
Boston,
Massachusetts
|
+$11.6M |
| 5 |
Adage Capital Partners
Boston,
Massachusetts
|
+$7.43M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Millennium Management
New York
|
-$17.1M |
| 2 |
D.E. Shaw & Co
New York
|
-$7.31M |
| 3 |
Two Sigma Advisers
New York
|
-$6.82M |
| 4 |
Qube Research & Technologies (QRT)
London,
United Kingdom
|
-$6.43M |
| 5 |
ACA
Avoro Capital Advisors
New York
|
-$6.06M |
MNKD Hedge Fund Activity: Q3 2025 in Review
234 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in MannKind Corp (MNKD) for Q3 2025, worth a combined $929M — up 46% from $637M a quarter earlier.
Buyers outnumbered sellers: 51 funds opened new MNKD positions and 46 closed out — a net gain of 5 holders — while 59 added to existing stakes and 75 trimmed.
The largest buyer was Rubric Capital Management (New York), opening a new position worth an estimated $50.1M. The largest seller was Millennium Management, cutting an estimated $17.1M.
- 234 institutional investors held MannKind Corp (MNKD) as of Q3 2025, up from 232 in Q2 2025.
- Funds reported $929M of MannKind Corp stock for Q3 2025, up 46% quarter-over-quarter.
- 51 funds opened new MannKind Corp positions in Q3 2025 and 46 closed out, a net change of +5 holders.
- The largest MannKind Corp buyer in Q3 2025 was Rubric Capital Management (New York), an estimated $50.1M added.
- The largest MannKind Corp seller in Q3 2025 was Millennium Management, an estimated $17.1M sold.
Based on aggregated 13F filings for Q3 2025.