Filed: 5/15/2026ACC: 0001104659-26-062488
📋 What this filing means
PORTOLAN CAPITAL MANAGEMENT, LLC filed this quarterly 13F‑HR report disclosing 144 equity positions with a total reported market value of $1.88B. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
144
Positions
$1.88B
Total AUM (reported)
97.03M
Total Shares
Allocation by class
COM$1.04B55.2%
CL A$140.90M7.5%
COM NEW$121.42M6.5%
COM CL A$79.11M4.2%
SHS$76.23M4.1%
CL A COM$66.69M3.5%
SPON ADR REP A$40.83M2.2%
Portfolio Concentration
Top 3$215.91M11.5%
4–10$309.63M16.5%
11–25$454.08M24.2%
Rest$899.34M47.9%
Top 3 weight
11.5%
Top 10 weight
28.0%
Voting Authority Distribution
Total shares with voting rights: 97.03M
Sole
Full voting authority
97.03M
shares
% of voting shares100.0%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
0.00
shares
% of voting shares0.0%
Investment Discretion (by position count)
Sole144
Shared0
Other0
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings144
Rows:
MODINE MFG CO
SOLEShares412.09K
TypeSH
Market value$89.30M
4.75%
Sole
412.09K
Shared
0.00
None
0.00
TTM TECHNOLOGIES INC
SOLEShares727.49K
TypeSH
Market value$70.87M
3.77%
Sole
727.49K
Shared
0.00
None
0.00
CELESTICA INC
SOLEShares197.86K
TypeSH
Market value$55.73M
2.97%
Sole
197.86K
Shared
0.00
None
0.00
VIRTU FINL INC
SOLEShares1.21M
TypeSH
Market value$53.30M
2.84%
Sole
1.21M
Shared
0.00
None
0.00
AKAMAI TECHNOLOGIES INC
SOLEShares423.44K
TypeSH
Market value$48.63M
2.59%
Sole
423.44K
Shared
0.00
None
0.00
VISHAY PRECISION GROUP INC
SOLEShares1.02M
TypeSH
Market value$44.28M
2.36%
Sole
1.02M
Shared
0.00
None
0.00
PAR PAC HOLDINGS INC
SOLEShares693.83K
TypeSH
Market value$43.46M
2.31%
Sole
693.83K
Shared
0.00
None
0.00
POWELL INDS INC
SOLEShares75.83K
TypeSH
Market value$41.03M
2.18%
Sole
75.83K
Shared
0.00
None
0.00
BAIDU INC
SOLEShares366.43K
TypeSH
Market value$40.83M
2.17%
Sole
366.43K
Shared
0.00
None
0.00
PBF ENERGY INC
SOLEShares800K
TypeSH
Market value$38.10M
2.03%
Sole
800K
Shared
0.00
None
0.00
UNITED THERAPEUTICS CORP DEL
SOLEShares63.44K
TypeSH
Market value$37.62M
2.00%
Sole
63.44K
Shared
0.00
None
0.00
THE REAL BROKERAGE INC
SOLEShares14.52M
TypeSH
Market value$36.30M
1.93%
Sole
14.52M
Shared
0.00
None
0.00
CANADA GOOSE HLDGS INC
SOLEShares3.22M
TypeSH
Market value$35.30M
1.88%
Sole
3.22M
Shared
0.00
None
0.00
CRESCENT ENERGY COMPANY
SOLEShares2.60M
TypeSH
Market value$35.12M
1.87%
Sole
2.60M
Shared
0.00
None
0.00
CASTLE BIOSCIENCES INC
SOLEShares1.35M
TypeSH
Market value$33.15M
1.76%
Sole
1.35M
Shared
0.00
None
0.00
LANTHEUS HLDGS INC
SOLEShares417.39K
TypeSH
Market value$31.66M
1.68%
Sole
417.39K
Shared
0.00
None
0.00
CELLEBRITE DI LTD
SOLEShares2.18M
TypeSH
Market value$30.05M
1.60%
Sole
2.18M
Shared
0.00
None
0.00
LUXEXPERIENCE BV
SOLEShares3.73M
TypeSH
Market value$29.87M
1.59%
Sole
3.73M
Shared
0.00
None
0.00
FLEXTRONICS INTL LTD
SOLEShares443.13K
TypeSH
Market value$29.01M
1.54%
Sole
443.13K
Shared
0.00
None
0.00
FABRINET
SOLEShares54.76K
TypeSH
Market value$28.56M
1.52%
Sole
54.76K
Shared
0.00
None
0.00
OKEANIS ECO TANKERS COR
SOLEShares538.86K
TypeSH
Market value$27.26M
1.45%
Sole
538.86K
Shared
0.00
None
0.00
TALEN ENERGY CORP
SOLEShares81.57K
TypeSH
Market value$26.04M
1.39%
Sole
81.57K
Shared
0.00
None
0.00
SEMTECH CORP
SOLEShares332.33K
TypeSH
Market value$25.55M
1.36%
Sole
332.33K
Shared
0.00
None
0.00
CORE NATURAL RESOURCES INC
SOLEShares237.04K
TypeSH
Market value$24.82M
1.32%
Sole
237.04K
Shared
0.00
None
0.00
MURPHY USA INC
SOLEShares48.11K
TypeSH
Market value$23.76M
1.26%
Sole
48.11K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
MODINE MFG COSOLE | COM | 412.09K | SH | $89.30M 4.75% | 412.09K | 0.00 | 0.00 |
TTM TECHNOLOGIES INCSOLE | COM | 727.49K | SH | $70.87M 3.77% | 727.49K | 0.00 | 0.00 |
CELESTICA INCSOLE | COM | 197.86K | SH | $55.73M 2.97% | 197.86K | 0.00 | 0.00 |
VIRTU FINL INCSOLE | CL A | 1.21M | SH | $53.30M 2.84% | 1.21M | 0.00 | 0.00 |
AKAMAI TECHNOLOGIES INCSOLE | COM | 423.44K | SH | $48.63M 2.59% | 423.44K | 0.00 | 0.00 |
VISHAY PRECISION GROUP INCSOLE | COM | 1.02M | SH | $44.28M 2.36% | 1.02M | 0.00 | 0.00 |
PAR PAC HOLDINGS INCSOLE | COM NEW | 693.83K | SH | $43.46M 2.31% | 693.83K | 0.00 | 0.00 |
POWELL INDS INCSOLE | COM | 75.83K | SH | $41.03M 2.18% | 75.83K | 0.00 | 0.00 |
BAIDU INCSOLE | SPON ADR REP A | 366.43K | SH | $40.83M 2.17% | 366.43K | 0.00 | 0.00 |
PBF ENERGY INCSOLE | CL A | 800K | SH | $38.10M 2.03% | 800K | 0.00 | 0.00 |
UNITED THERAPEUTICS CORP DELSOLE | COM | 63.44K | SH | $37.62M 2.00% | 63.44K | 0.00 | 0.00 |
THE REAL BROKERAGE INCSOLE | COM NEW | 14.52M | SH | $36.30M 1.93% | 14.52M | 0.00 | 0.00 |
CANADA GOOSE HLDGS INCSOLE | SHS SUB VTG | 3.22M | SH | $35.30M 1.88% | 3.22M | 0.00 | 0.00 |
CRESCENT ENERGY COMPANYSOLE | CL A COM | 2.60M | SH | $35.12M 1.87% | 2.60M | 0.00 | 0.00 |
CASTLE BIOSCIENCES INCSOLE | COM | 1.35M | SH | $33.15M 1.76% | 1.35M | 0.00 | 0.00 |
LANTHEUS HLDGS INCSOLE | COM | 417.39K | SH | $31.66M 1.68% | 417.39K | 0.00 | 0.00 |
CELLEBRITE DI LTDSOLE | ORDINARY SHARES | 2.18M | SH | $30.05M 1.60% | 2.18M | 0.00 | 0.00 |
LUXEXPERIENCE BVSOLE | SPONSORED ADS | 3.73M | SH | $29.87M 1.59% | 3.73M | 0.00 | 0.00 |
FLEXTRONICS INTL LTDSOLE | ORD | 443.13K | SH | $29.01M 1.54% | 443.13K | 0.00 | 0.00 |
FABRINETSOLE | SHS | 54.76K | SH | $28.56M 1.52% | 54.76K | 0.00 | 0.00 |
OKEANIS ECO TANKERS CORSOLE | SHS | 538.86K | SH | $27.26M 1.45% | 538.86K | 0.00 | 0.00 |
TALEN ENERGY CORPSOLE | COM | 81.57K | SH | $26.04M 1.39% | 81.57K | 0.00 | 0.00 |
SEMTECH CORPSOLE | COM | 332.33K | SH | $25.55M 1.36% | 332.33K | 0.00 | 0.00 |
CORE NATURAL RESOURCES INCSOLE | COM SHS | 237.04K | SH | $24.82M 1.32% | 237.04K | 0.00 | 0.00 |
MURPHY USA INCSOLE | COM | 48.11K | SH | $23.76M 1.26% | 48.11K | 0.00 | 0.00 |
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