Position in KOS
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$1,675,066
-$2,911,869 QoQ
Shares Held
602,542
-70.0% QoQ
Ownership
0.102%
of shares outstanding
% of Portfolio
0.09%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2022
7 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in KOS Over Time
Shares Held
Position Value (USD)
Position in Oil & Gas E&P
Energy · as of Mar 31, 2026Portolan Capital Management, LLC holds $50,668,904 across 6 Oil & Gas E&P names. KOS ranks #5 (3.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | CRGY |
Crescent Energy Co
|
2,601,142 | $35,115,417 | |
| 2 | NOG |
Northern Oil & Gas, Inc.
|
204,244 | $5,970,052 | |
| 3 | TALO |
Talos Energy Inc.
|
344,549 | $5,430,092 | |
| 4 | SD |
Sandridge Energy Inc
|
123,591 | $2,015,769 | |
| 5 | KOS |
Kosmos Energy Ltd.
This page
|
602,542 | $1,675,066 | |
| 6 | AMPY |
Amplify Energy Corp.
|
74,120 | $462,508 |
All Filings in KOS
Export CSV
7 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,675,066 | 602,542 | Shares | Sole | 2026-05-15 | |
| 2025-03-31 | $4,586,935 | 2,011,814 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $5,531,870 | 1,617,506 | Shares | Sole | 2025-02-13 | |
| 2023-12-31 | $3,182,915 | 474,354 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $16,788,018 | 2,052,325 | Shares | Sole | 2023-11-14 | |
| 2023-03-31 | $2,968,619 | 399,008 | Shares | Sole | 2023-05-15 | |
| 2022-09-30 | $4,030,723 | 779,637 | Shares | Sole | 2022-11-14 | |
| No filing history on record for this holder in this stock. | ||||||