§ 13F · FUND PROFILE
Portolan Capital Management, LLC.
Institutional filer · behavioral pattern: Other. Summary pending.
AUM · $1.8B (13F)Positions · 119Turnover · — · Q1Filed · May 15, 2026
CONCENTRATION
—
Top 10 holdings
NEW BUYS
0
+$316M deployed
EXITS
0
No exits
SECTOR SHIFT
—
No prior quarter data
3YR HIT RATE
—
Top-5 overlap
§ 01 · TOP HOLDINGS
The book · Q1 2026
FILED MAY 15, 2026
| # | Ticker | Name | Shares | $ value | % port | Δ Q1 |
|---|---|---|---|---|---|---|
| 1 | MOD | MODINE MFG CO | 412K | $89M | 4.8% | −23% |
| 2 | TTMI | TTM TECHNOLOGIES INC | 727K | $71M | 3.8% | −37% |
| 3 | CLS | CELESTICA INC | 198K | $56M | 3.0% | +15% |
| 4 | VIRT | VIRTU FINL INC | 1.21M | $53M | 2.8% | +222% |
| 5 | AKAM | AKAMAI TECHNOLOGIES INC | 423K | $49M | 2.6% | −19% |
| 6 | VPG | VISHAY PRECISION GROUP INC | 1.02M | $44M | 2.4% | +16% |
| 7 | PARR | PAR PAC HOLDINGS INC | 694K | $43M | 2.3% | NEW |
| 8 | POWL | POWELL INDS INC | 76K | $41M | 2.2% | −4% |
| 9 | BIDU | BAIDU INC | 366K | $41M | 2.2% | +39% |
| 10 | PBF | PBF ENERGY INC | 800K | $38M | 2.0% | NEW |
§ 02 · SECTOR ALLOCATION
Where the money is
Sector data pending
§ 03 · THE PORTOLAN SIGNAL
AC read
Portolan Capital Management, LLC is a Other fund managing $1.8 billion in assets. The fund runs a portfolio of 119 positions.
Read the full dossier →§ 04 · FILING HISTORY
Q-by-Q deltas
2 FILINGS
Q1 2026
Steady book
+0 buys · −0 exits · 0 changed
Q4 2025
Steady book
+0 buys · −0 exits · 0 changed
Q3 2025
Steady book
+0 buys · −0 exits · 0 changed
Q2 2025
Steady book
+0 buys · −0 exits · 0 changed