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| Portolan Capital Management LLC
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| CRD # | 157542 |
| SEC # | 801-73963 |
| CIK # | 0001350290 |
| AUM | 2,021.4 M (2026-04-15) |
| Employees | 12 (33% Investors, 0% Brokers) |
| Fees | |
| Minimum | |
| Phone | 617-753-6400 |
| Address | Two International Place Boston, MA 02110 |
| Source | [IAPD] [EDGAR] [Website] [LinkedIn] |
| Total AUM ($B) |
|---|
| CIK | Period |
|---|---|
| 0001350290 |
| Sector | Form 13F Holdings | Value ($M) |
|---|---|---|
| Modine Manufacturing Co | 89.3 | |
| TTM Technologies Inc | 70.9 | |
| Celestica Inc | 55.7 | |
| Virtu Financial Inc | 53.3 | |
| Akamai Technologies Inc | 48.6 | |
| Vishay Precision Group Inc | 44.3 | |
| Delta Petroleum Corp/CO | 43.5 | |
| Powell Industries Inc | 41.0 | |
| Baidu Inc | 40.8 | |
| PBF Energy Inc | 38.1 | |
| United Therapeutics Corp | 37.6 | |
| Real Brokerage Inc | 36.3 | |
| Canada Goose Holdings Inc | 35.3 | |
| Crescent Energy Co | 35.1 | |
| Castle Biosciences Inc | 33.1 | |
| Lantheus Holdings Inc | 31.7 | |
| Cellebrite Di Ltd | 30.1 | |
| MYT Netherlands Parent BV | 29.9 | |
| Flextronics International Ltd | 29.0 | |
| Fabrinet | 28.6 | |
| Okeanis ECO Tankers Corp | 27.3 | |
| Talen Energy Corp | 26.0 | |
| Semtech Corp | 25.6 | |
| Consol Energy Inc | 24.8 | |
| Murphy USA Inc | 23.8 | |
| Biogen IDEC Inc | 21.7 | |
| KURA Sushi USA Inc | 21.0 | |
| Qualys Inc | 21.0 | |
| Jabil Circuit Inc | 20.5 | |
| Circle Internet Group Inc | 20.4 | Prev | Page 1 | Next |
| Type | Form D Funds | Date | Sold | AUM |
|---|---|---|---|---|
| HF | Portolan Co-Investment Fund LP | [2025-03-31] | 39.8 M | 46.2 M |
| Filed 2025-12-04 (D/A) · Exemption 506(b), 3(c), 3(c)(7) · Minimum $5,000,000 · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose | ||||
| HF | Portolan Select Fund LP | [2020-03-30] | 138.0 M | 199.7 M |
| Filed 2026-01-21 (D/A) · Exemption 506(b), 3(c), 3(c)(7) · Remaining Indefinite · Duration More than one year · Commission $9,375 · Net Assets Decline to Disclose | ||||
| HF | Portolan Equity Offshore Fund Ltd | [2014-03-31] | 138.1 M | 70.0 M |
| Filed 2024-04-04 (D/A) · Exemption 506(b), 3(c), 3(c)(7) · Minimum $100,000 · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose | ||||
| HF | Portolan Equity Fund LP | [2012-05-18] | 448.2 M | 201.9 M |
| Filed 2025-04-04 (D/A) · Exemption 506(b), 3(c), 3(c)(7) · Minimum $286,000 · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose | ||||
| HF | Portolan Pilot Fund LP | 2012-02-14 | 59.5 M | |
| HF | Portolan Pilot Master Fund Ltd | 2012-02-14 | 65.0 M | |
| HF | Portolan Pilot Offshore Fund Ltd | 2012-02-14 | 63.3 M | |
| AUM Breakdown | Accounts | AUM ($B) |
|---|---|---|
| By Client Type | ||
| (a) Individuals (other than high net worth individuals) | 0 | 0.0 |
| (b) Individuals (high net worth individuals) | 14 | 0.3 |
| (c) Banking or thrift institutions | 0 | 0.0 |
| (d) Investment companies | 1 | 1.0 |
| (e) Business development companies | 0 | 0.0 |
| (f) Pooled investment vehicles | 4 | 0.6 |
| (g) Pension and profit sharing plans | 0 | 0.0 |
| (h) Charitable organizations | 0 | 0.1 |
| (i) State or municipal government entities | 0 | 0.0 |
| (j) Other investment advisers | 0 | 0.0 |
| (k) Insurance companies | 0 | 0.0 |
| (l) Sovereign wealth funds and foreign official institutions | 0 | 0.0 |
| (m) Corporations or other businesses not listed above | 0 | 0.0 |
| (n) Other | 0 | 0.0 |
| Total | 20 | 2.0 |
| By Discretionary | ||
| Discretionary | 20 | 2.0 |
| Non-Discretionary | 0 | 0.0 |
| Total | 20 | 2.0 |
| By Non-United States Persons | ||
| Non-United States Persons | 0.1 | |
| United States Persons | 1.9 | |
| Total | 20 | 2.0 |
| Form D Directors | Role | # Filings | # Firms | 2011 - 2026 |
|---|---|---|---|---|
| Philip Cater | Director | 96 | 25 | |
| George McCabe | Executive Officer | 8 | 3 | |
| Christopher Nardone | Executive Officer | 6 | 2 | |
| Portolan Capital Management LLC | Executive Officer | 5 | 2 | |
| Portolan Investments LLC | Executive Officer, Promoter | 4 | 2 | |
| Investment Manager Portolan Capital Management LLC | Promoter | 3 | 2 | |
| Promoter Portolan Capital Management LLC | Promoter | 3 | 2 | |
| General Partner Portolan Investments LLC | Promoter | 2 | 2 | |
| Betsy Flaherty | Executive Officer | 4 | 1 |
| EDGAR Form | CIK | 2011 - 2026 |
|---|---|---|
| 13F-HR | [0001350290] | |
| SC 13G | [0001350290] |
| Firm Profile (Form ADV) | |
|---|---|
| Discretionary AUM | $0.5B |
| Serves | Institutional, Retail |
| Fund Types | Hedge Fund |
| LEI | 25490063K3UNKW5GPT61 |
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