Filed: 5/15/2025ACC: 0001104659-25-049320
📋 What this filing means
PORTOLAN CAPITAL MANAGEMENT, LLC filed this quarterly 13F‑HR report disclosing 109 equity positions with a total reported market value of $1.32B. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
109
Positions
$1.32B
Total AUM (reported)
73.01M
Total Shares
Allocation by class
COM$786.25M59.8%
CL A$89.50M6.8%
COM NEW$80.11M6.1%
COM CL A$59.06M4.5%
ORD SHS$44.19M3.4%
SHARES CL A$42.86M3.3%
CL A COM$32.57M2.5%
Portfolio Concentration
Top 3$172.43M13.1%
4–10$234.88M17.9%
11–25$322.99M24.5%
Rest$585.47M44.5%
Top 3 weight
13.1%
Top 10 weight
31.0%
Voting Authority Distribution
Total shares with voting rights: 73.01M
Sole
Full voting authority
73.01M
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)
Sole109
Shared0
Other0
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings109
Rows:
LANTHEUS HLDGS INC
SOLEShares867.31K
TypeSH
Market value$84.65M
6.43%
Sole
867.31K
Shared
0.00
None
0.00
SLM CORP
SOLEShares1.51M
TypeSH
Market value$44.42M
3.38%
Sole
1.51M
Shared
0.00
None
0.00
KRATOS DEFENSE &SEC SOLUTIO
SOLEShares1.46M
TypeSH
Market value$43.37M
3.30%
Sole
1.46M
Shared
0.00
None
0.00
GENIUS SPORTS LIMITED
SOLEShares4.28M
TypeSH
Market value$42.86M
3.26%
Sole
4.28M
Shared
0.00
None
0.00
MODINE MFG CO
SOLEShares493.57K
TypeSH
Market value$37.88M
2.88%
Sole
493.57K
Shared
0.00
None
0.00
SHIFT4 PMTS INC
SOLEShares406.50K
TypeSH
Market value$33.22M
2.52%
Sole
406.50K
Shared
0.00
None
0.00
EBAY INC.
SOLEShares474.66K
TypeSH
Market value$32.15M
2.44%
Sole
474.66K
Shared
0.00
None
0.00
GATES INDL CORP PLC
SOLEShares1.73M
TypeSH
Market value$31.88M
2.42%
Sole
1.73M
Shared
0.00
None
0.00
CELESTICA INC
SOLEShares392.92K
TypeSH
Market value$30.97M
2.35%
Sole
392.92K
Shared
0.00
None
0.00
HONEST CO INC
SOLEShares5.52M
TypeSH
Market value$25.94M
1.97%
Sole
5.52M
Shared
0.00
None
0.00
CASTLE BIOSCIENCES INC
SOLEShares1.27M
TypeSH
Market value$25.33M
1.93%
Sole
1.27M
Shared
0.00
None
0.00
E L F BEAUTY INC
SOLEShares395.25K
TypeSH
Market value$24.82M
1.89%
Sole
395.25K
Shared
0.00
None
0.00
OPERA LTD
SOLEShares1.53M
TypeSH
Market value$24.38M
1.85%
Sole
1.53M
Shared
0.00
None
0.00
PORCH GROUP INC
SOLEShares3.29M
TypeSH
Market value$24.00M
1.82%
Sole
3.29M
Shared
0.00
None
0.00
RADNET INC
SOLEShares478.41K
TypeSH
Market value$23.79M
1.81%
Sole
478.41K
Shared
0.00
None
0.00
LENDINGTREE INC NEW
SOLEShares438.80K
TypeSH
Market value$22.06M
1.68%
Sole
438.80K
Shared
0.00
None
0.00
TTM TECHNOLOGIES INC
SOLEShares1.02M
TypeSH
Market value$20.95M
1.59%
Sole
1.02M
Shared
0.00
None
0.00
CROCS INC
SOLEShares194.21K
TypeSH
Market value$20.63M
1.57%
Sole
194.21K
Shared
0.00
None
0.00
DIGITALBRIDGE GROUP INC
SOLEShares2.27M
TypeSH
Market value$19.99M
1.52%
Sole
2.27M
Shared
0.00
None
0.00
MYT NETHERLANDS PARENT B V
SOLEShares2.63M
TypeSH
Market value$19.87M
1.51%
Sole
2.63M
Shared
0.00
None
0.00
VISHAY PRECISION GROUP INC
SOLEShares820.97K
TypeSH
Market value$19.78M
1.50%
Sole
820.97K
Shared
0.00
None
0.00
I3 VERTICALS INC
SOLEShares789.16K
TypeSH
Market value$19.47M
1.48%
Sole
789.16K
Shared
0.00
None
0.00
LIQUIDITY SVCS INC
SOLEShares626.36K
TypeSH
Market value$19.42M
1.48%
Sole
626.36K
Shared
0.00
None
0.00
QUANTERIX CORP
SOLEShares2.96M
TypeSH
Market value$19.29M
1.47%
Sole
2.96M
Shared
0.00
None
0.00
CELLEBRITE DI LTD
SOLEShares988.99K
TypeSH
Market value$19.22M
1.46%
Sole
988.99K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
LANTHEUS HLDGS INCSOLE | COM | 867.31K | SH | $84.65M 6.43% | 867.31K | 0.00 | 0.00 |
SLM CORPSOLE | COM | 1.51M | SH | $44.42M 3.38% | 1.51M | 0.00 | 0.00 |
KRATOS DEFENSE &SEC SOLUTIOSOLE | COM NEW | 1.46M | SH | $43.37M 3.30% | 1.46M | 0.00 | 0.00 |
GENIUS SPORTS LIMITEDSOLE | SHARES CL A | 4.28M | SH | $42.86M 3.26% | 4.28M | 0.00 | 0.00 |
MODINE MFG COSOLE | COM | 493.57K | SH | $37.88M 2.88% | 493.57K | 0.00 | 0.00 |
SHIFT4 PMTS INCSOLE | CL A | 406.50K | SH | $33.22M 2.52% | 406.50K | 0.00 | 0.00 |
EBAY INC.SOLE | COM | 474.66K | SH | $32.15M 2.44% | 474.66K | 0.00 | 0.00 |
GATES INDL CORP PLCSOLE | ORD SHS | 1.73M | SH | $31.88M 2.42% | 1.73M | 0.00 | 0.00 |
CELESTICA INCSOLE | COM | 392.92K | SH | $30.97M 2.35% | 392.92K | 0.00 | 0.00 |
HONEST CO INCSOLE | COM | 5.52M | SH | $25.94M 1.97% | 5.52M | 0.00 | 0.00 |
CASTLE BIOSCIENCES INCSOLE | COM | 1.27M | SH | $25.33M 1.93% | 1.27M | 0.00 | 0.00 |
E L F BEAUTY INCSOLE | COM | 395.25K | SH | $24.82M 1.89% | 395.25K | 0.00 | 0.00 |
OPERA LTDSOLE | SPONSORED ADS | 1.53M | SH | $24.38M 1.85% | 1.53M | 0.00 | 0.00 |
PORCH GROUP INCSOLE | COM | 3.29M | SH | $24.00M 1.82% | 3.29M | 0.00 | 0.00 |
RADNET INCSOLE | COM | 478.41K | SH | $23.79M 1.81% | 478.41K | 0.00 | 0.00 |
LENDINGTREE INC NEWSOLE | COM | 438.80K | SH | $22.06M 1.68% | 438.80K | 0.00 | 0.00 |
TTM TECHNOLOGIES INCSOLE | COM | 1.02M | SH | $20.95M 1.59% | 1.02M | 0.00 | 0.00 |
CROCS INCSOLE | COM | 194.21K | SH | $20.63M 1.57% | 194.21K | 0.00 | 0.00 |
DIGITALBRIDGE GROUP INCSOLE | CL A NEW | 2.27M | SH | $19.99M 1.52% | 2.27M | 0.00 | 0.00 |
MYT NETHERLANDS PARENT B VSOLE | ADS | 2.63M | SH | $19.87M 1.51% | 2.63M | 0.00 | 0.00 |
VISHAY PRECISION GROUP INCSOLE | COM | 820.97K | SH | $19.78M 1.50% | 820.97K | 0.00 | 0.00 |
I3 VERTICALS INCSOLE | COM CL A | 789.16K | SH | $19.47M 1.48% | 789.16K | 0.00 | 0.00 |
LIQUIDITY SVCS INCSOLE | COM | 626.36K | SH | $19.42M 1.48% | 626.36K | 0.00 | 0.00 |
QUANTERIX CORPSOLE | COM | 2.96M | SH | $19.29M 1.47% | 2.96M | 0.00 | 0.00 |
CELLEBRITE DI LTDSOLE | ORDINARY SHARES | 988.99K | SH | $19.22M 1.46% | 988.99K | 0.00 | 0.00 |
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