Filed: 8/14/2026ACC: 0001104659-26-096980
📋 What this filing means
PORTOLAN CAPITAL MANAGEMENT, LLC filed this quarterly 13F‑HR report disclosing 148 equity positions with a total reported market value of $2.67B. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
148
Positions
$2.67B
Total AUM (reported)
85.22M
Total Shares
Allocation by class
COM$1.72B64.5%
CL A$275.73M10.3%
COM CL A$115.19M4.3%
COM NEW$63.81M2.4%
ORD$44.91M1.7%
CL A COM$42.99M1.6%
SHARES CL A$42.58M1.6%
Portfolio Concentration
Top 3$373.72M14.0%
4–10$401.28M15.0%
11–25$553.73M20.7%
Rest$1.34B50.3%
Top 3 weight
14.0%
Top 10 weight
29.0%
Voting Authority Distribution
Total shares with voting rights: 85.22M
Sole
Full voting authority
85.22M
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)
Sole148
Shared0
Other0
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings148
Rows:
VISHAY PRECISION GROUP INC
SOLEShares1.01M
TypeSH
Market value$151.13M
5.66%
Sole
1.01M
Shared
0.00
None
0.00
VIRTU FINL INC
SOLEShares2.14M
TypeSH
Market value$127.61M
4.78%
Sole
2.14M
Shared
0.00
None
0.00
TTM TECHNOLOGIES INC
SOLEShares507.84K
TypeSH
Market value$94.98M
3.56%
Sole
507.84K
Shared
0.00
None
0.00
MODINE MFG CO
SOLEShares313.68K
TypeSH
Market value$83.76M
3.14%
Sole
313.68K
Shared
0.00
None
0.00
QUALYS INC
SOLEShares529.81K
TypeSH
Market value$72.84M
2.73%
Sole
529.81K
Shared
0.00
None
0.00
SHIFT4 PMTS INC
SOLEShares1.11M
TypeSH
Market value$54.19M
2.03%
Sole
1.11M
Shared
0.00
None
0.00
MAYVILLE ENGR CO INC
SOLEShares1.30M
TypeSH
Market value$48.67M
1.82%
Sole
1.30M
Shared
0.00
None
0.00
ENOVA INTL INC
SOLEShares198.79K
TypeSH
Market value$47.86M
1.79%
Sole
198.79K
Shared
0.00
None
0.00
SEMTECH CORP
SOLEShares294.62K
TypeSH
Market value$47.68M
1.79%
Sole
294.62K
Shared
0.00
None
0.00
CELESTICA INC
SOLEShares126.86K
TypeSH
Market value$46.28M
1.73%
Sole
126.86K
Shared
0.00
None
0.00
UNITED THERAPEUTICS CORP DEL
SOLEShares81.52K
TypeSH
Market value$44.17M
1.65%
Sole
81.52K
Shared
0.00
None
0.00
GENIUS SPORTS LIMITED
SOLEShares7.03M
TypeSH
Market value$42.58M
1.59%
Sole
7.03M
Shared
0.00
None
0.00
POWELL INDS INC
SOLEShares145.63K
TypeSH
Market value$41.70M
1.56%
Sole
145.63K
Shared
0.00
None
0.00
PENGUIN SOLUTIONS INC
SOLEShares546.17K
TypeSH
Market value$41.51M
1.55%
Sole
546.17K
Shared
0.00
None
0.00
DAVE INC
SOLEShares105.34K
TypeSH
Market value$39.25M
1.47%
Sole
105.34K
Shared
0.00
None
0.00
FLEX LTD
SOLEShares229.03K
TypeSH
Market value$37.12M
1.39%
Sole
229.03K
Shared
0.00
None
0.00
ALLIENT INC
SOLEShares359.69K
TypeSH
Market value$37.02M
1.39%
Sole
359.69K
Shared
0.00
None
0.00
PORCH GROUP INC
SOLEShares2.46M
TypeSH
Market value$36.95M
1.38%
Sole
2.46M
Shared
0.00
None
0.00
AKAMAI TECHNOLOGIES INC
SOLEShares310.36K
TypeSH
Market value$36.69M
1.37%
Sole
310.36K
Shared
0.00
None
0.00
CANDEL THERAPEUTICS INC
SOLEShares3.49M
TypeSH
Market value$35.95M
1.35%
Sole
3.49M
Shared
0.00
None
0.00
TALEN ENERGY CORP
SOLEShares90.31K
TypeSH
Market value$34.70M
1.30%
Sole
90.31K
Shared
0.00
None
0.00
REGAL REXNORD CORPORATION
SOLEShares137.50K
TypeSH
Market value$32.75M
1.23%
Sole
137.50K
Shared
0.00
None
0.00
LANTHEUS HLDGS INC
SOLEShares288.69K
TypeSH
Market value$32.03M
1.20%
Sole
288.69K
Shared
0.00
None
0.00
BIOGEN INC
SOLEShares142.86K
TypeSH
Market value$30.87M
1.16%
Sole
142.86K
Shared
0.00
None
0.00
VEECO INSTRS INC DEL
SOLEShares401.64K
TypeSH
Market value$30.44M
1.14%
Sole
401.64K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
VISHAY PRECISION GROUP INCSOLE | COM | 1.01M | SH | $151.13M 5.66% | 1.01M | 0.00 | 0.00 |
VIRTU FINL INCSOLE | CL A | 2.14M | SH | $127.61M 4.78% | 2.14M | 0.00 | 0.00 |
TTM TECHNOLOGIES INCSOLE | COM | 507.84K | SH | $94.98M 3.56% | 507.84K | 0.00 | 0.00 |
MODINE MFG COSOLE | COM | 313.68K | SH | $83.76M 3.14% | 313.68K | 0.00 | 0.00 |
QUALYS INCSOLE | COM | 529.81K | SH | $72.84M 2.73% | 529.81K | 0.00 | 0.00 |
SHIFT4 PMTS INCSOLE | CL A | 1.11M | SH | $54.19M 2.03% | 1.11M | 0.00 | 0.00 |
MAYVILLE ENGR CO INCSOLE | COM | 1.30M | SH | $48.67M 1.82% | 1.30M | 0.00 | 0.00 |
ENOVA INTL INCSOLE | COM | 198.79K | SH | $47.86M 1.79% | 198.79K | 0.00 | 0.00 |
SEMTECH CORPSOLE | COM | 294.62K | SH | $47.68M 1.79% | 294.62K | 0.00 | 0.00 |
CELESTICA INCSOLE | COM | 126.86K | SH | $46.28M 1.73% | 126.86K | 0.00 | 0.00 |
UNITED THERAPEUTICS CORP DELSOLE | COM | 81.52K | SH | $44.17M 1.65% | 81.52K | 0.00 | 0.00 |
GENIUS SPORTS LIMITEDSOLE | SHARES CL A | 7.03M | SH | $42.58M 1.59% | 7.03M | 0.00 | 0.00 |
POWELL INDS INCSOLE | COM | 145.63K | SH | $41.70M 1.56% | 145.63K | 0.00 | 0.00 |
PENGUIN SOLUTIONS INCSOLE | COM | 546.17K | SH | $41.51M 1.55% | 546.17K | 0.00 | 0.00 |
DAVE INCSOLE | CLASS A COM NEW | 105.34K | SH | $39.25M 1.47% | 105.34K | 0.00 | 0.00 |
FLEX LTDSOLE | ORD | 229.03K | SH | $37.12M 1.39% | 229.03K | 0.00 | 0.00 |
ALLIENT INCSOLE | COM | 359.69K | SH | $37.02M 1.39% | 359.69K | 0.00 | 0.00 |
PORCH GROUP INCSOLE | COM | 2.46M | SH | $36.95M 1.38% | 2.46M | 0.00 | 0.00 |
AKAMAI TECHNOLOGIES INCSOLE | COM | 310.36K | SH | $36.69M 1.37% | 310.36K | 0.00 | 0.00 |
CANDEL THERAPEUTICS INCSOLE | COM | 3.49M | SH | $35.95M 1.35% | 3.49M | 0.00 | 0.00 |
TALEN ENERGY CORPSOLE | COM | 90.31K | SH | $34.70M 1.30% | 90.31K | 0.00 | 0.00 |
REGAL REXNORD CORPORATIONSOLE | COM | 137.50K | SH | $32.75M 1.23% | 137.50K | 0.00 | 0.00 |
LANTHEUS HLDGS INCSOLE | COM | 288.69K | SH | $32.03M 1.20% | 288.69K | 0.00 | 0.00 |
BIOGEN INCSOLE | COM | 142.86K | SH | $30.87M 1.16% | 142.86K | 0.00 | 0.00 |
VEECO INSTRS INC DELSOLE | COM | 401.64K | SH | $30.44M 1.14% | 401.64K | 0.00 | 0.00 |
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