Position in INSM
as of Jun 30, 2026
· filed Jul 23, 2026
Position Value
$844,963
-$450,933 QoQ
Shares Held
7,925
0.0% QoQ
Ownership
0.004%
of shares outstanding
% of Portfolio
0.55%
of 13F equity value
Holder Rank
#360
of 663 holders
Holding Since
Jun 2024
9 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in INSM Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026Yorktown Management & Research Co Inc holds $14,366,429 across 28 Biotechnology names. INSM ranks #2 (5.9% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | AXSM |
Axsome Therapeutics, Inc.
|
4,850 | $1,187,134 | |
| 2 | INSM |
INSMED Inc
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|
7,925 | $844,963 | |
| 3 | DNLI |
Denali Therapeutics Inc.
|
32,100 | $825,612 | |
| 4 | BEAM |
Beam Therapeutics Inc.
|
22,550 | $773,916 | |
| 5 | TGTX |
Tg Therapeutics, Inc.
|
13,700 | $752,678 | |
| 6 | KRYS |
Krystal Biotech, Inc.
|
2,000 | $743,340 | |
| 7 | CYTK |
Cytokinetics Inc
|
7,750 | $660,222 | |
| 8 | MIRM |
Mirum Pharmaceuticals, Inc.
|
5,600 | $655,592 |
All Filings in INSM
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9 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $844,963 | 7,925 | Shares | Sole | 2026-07-23 | |
| 2026-03-31 | $1,295,896 | 7,925 | Shares | Sole | 2026-04-20 | |
| 2025-12-31 | $1,670,784 | 9,600 | Shares | Sole | 2026-01-23 | |
| 2025-09-30 | $1,382,496 | 9,600 | Shares | Sole | 2025-10-29 | |
| 2025-06-30 | $588,744 | 5,850 | Shares | Sole | 2025-08-04 | |
| 2025-03-31 | $446,296 | 5,850 | Shares | Sole | 2025-04-23 | |
| 2024-12-31 | $757,368 | 10,970 | Shares | Sole | 2025-01-27 | |
| 2024-09-30 | $800,810 | 10,970 | Shares | Sole | 2024-10-25 | |
| 2024-06-30 | $734,990 | 10,970 | Shares | Sole | 2024-07-30 | |
| No filing history on record for this holder in this stock. | ||||||