Portolan Capital Management 13F annual report
Portolan Capital Management is an investment fund managing more than $1.21 trillion ran by Betsy Flaherty. There are currently 117 companies in Mrs. Flaherty’s portfolio. The largest investments include Lantheus Inc and Celestica, together worth $93.9 billion.
$1.21 trillion Assets Under Management (AUM)
As of 7th August 2024, Portolan Capital Management’s top holding is 632,105 shares of Lantheus Inc currently worth over $50.8 billion and making up 4.2% of the portfolio value.
Relative to the number of outstanding shares of Lantheus Inc, Portolan Capital Management owns more than approximately 0.1% of the company.
In addition, the fund holds 753,116 shares of Celestica worth $43.2 billion, whose value grew 30.9% in the past six months.
The third-largest holding is Super Micro Computer Inc worth $34.8 billion and the next is Zeta Global worth $33.9 billion, with 1,919,190 shares owned.
Currently, Portolan Capital Management's portfolio is worth at least $1.21 trillion. The total portfolio value may be much higher due to cash
assets that are not publicly disclosed such as fixed income, real estate, or cash equivalents.
Careers at Portolan Capital Management
The Portolan Capital Management office and employees reside in Boston, Massachusetts. According to the last 13-F report filed with the SEC, Betsy Flaherty serves as the Chief Compliance Officer at Portolan Capital Management.
Recent trades
In the most recent 13F filing, Portolan Capital Management revealed that it had opened a new position in
Celestica and bought 753,116 shares worth $43.2 billion.
This means they effectively own approximately 0.1% of the company.
Celestica makes up
12.1%
of the fund's Technology sector allocation and has grown its share price by 139.3% in the past year.
The investment fund also strengthened its position in Lantheus Inc by buying
106,363 additional shares.
This makes their stake in Lantheus Inc total 632,105 shares worth $50.8 billion.
Lantheus Inc soared 41.2% in the past year.
On the other hand, there are companies that Portolan Capital Management is getting rid of from its portfolio.
Portolan Capital Management closed its position in Celestica on 14th August 2024.
It sold the previously owned 1,000,489 shares for $45 billion.
Betsy Flaherty also disclosed a decreased stake in Super Micro Computer Inc by approximately 0.1%.
This leaves the value of the investment at $34.8 billion and 42,439 shares.
One of the largest hedge funds
The two most similar investment funds to Portolan Capital Management are Baystate Wealth Management and Advocacy Wealth Management Services. They manage $1.21 trillion and $1.21 trillion respectively.
Betsy Flaherty investment strategy
Portolan Capital Management’s portfolio is diversified across 10 sectors.
Currently, their heaviest sector is Technology — making up 29.4% of
the total portfolio value.
The fund focuses on investments in the United States as
53.8% of the portfolio companies
are based in the United States.
The majority of the companies in the fund’s portfolio are large-cap stocks.
Stocks with a size of more than $10 billion in market cap make up
12% of the total holdings value.
On the other hand, small-cap stocks make up only 3.4% of the portfolio.
The average market cap of the portfolio companies is close to $52.7 billion.
The complete list of Portolan Capital Management trades based on 13F SEC filings
These positions were updated on August 14th based on the fund’s latest 13F filing. Quickly find out what the most recently closed or increased positions are.
| Security | Shares Owned | Value | Allocation |
|---|---|---|---|
| Lantheus Holdings Inc |
20.23%
632,105
|
$50,751,710,000 | 4.18% |
| Celestica, Inc. |
Closed
1,000,489
|
$44,961,976,000 | |
| Celestica, Inc. |
Opened
753,116
|
$43,176,140,000 | 3.56% |
| Super Micro Computer Inc |
5.86%
42,439
|
$34,772,395,000 | 2.86% |
| Zeta Global Holdings Corp. |
18.31%
1,919,190
|
$33,873,704,000 | 2.79% |
| Kratos Defense & Sec Solutions |
2.89%
1,630,421
|
$32,624,724,000 | 2.69% |
| e.l.f. Beauty Inc |
16.23%
139,649
|
$29,426,837,000 | 2.42% |
| Modine Mfg Co |
3.69%
278,825
|
$27,935,477,000 | 2.30% |
| Western Digital Corp. |
5.10%
355,997
|
$26,973,893,000 | 2.22% |
| nVent Electric plc |
22.22%
348,556
|
$26,702,875,000 | 2.20% |
| Castle Biosciences, Inc. |
16.06%
1,210,952
|
$26,362,425,000 | 2.17% |
| Quanterix Corp |
64.95%
1,918,030
|
$25,337,176,000 | 2.09% |
| Honest Co Inc |
8.23%
8,105,357
|
$23,667,642,000 | 1.95% |
| TTM Technologies Inc |
130.27%
1,192,680
|
$23,173,772,000 | 1.91% |
| Biolife Solutions Inc |
15.22%
1,004,228
|
$21,520,606,000 | 1.77% |
| Acm Resh Inc |
58.95%
855,835
|
$19,735,555,000 | 1.63% |
| Natera Inc |
17.22%
166,577
|
$18,038,623,000 | 1.49% |
| United Therapeutics Corp |
50.56%
54,845
|
$17,470,875,000 | 1.44% |
| Kemper Corp |
95.88%
286,316
|
$16,987,128,000 | 1.40% |
| Micron Technology Inc. |
24.19%
121,103
|
$15,928,678,000 | 1.31% |
| Genius Sports Limited |
31.50%
2,898,346
|
$15,795,986,000 | 1.30% |
| Tecnoglass Inc |
19.83%
293,587
|
$14,732,196,000 | 1.21% |
| American Intl Group Inc |
53.46%
195,168
|
$14,489,272,000 | 1.19% |
| R1 RCM Inc. |
Closed
1,097,612
|
$14,137,243,000 | |
| i3 Verticals Inc |
32.00%
629,151
|
$13,891,654,000 | 1.14% |
| Silicon Motion Technology Corp |
6.43%
170,246
|
$13,788,224,000 | 1.14% |
| Shift4 Pmts Inc |
21.65%
187,500
|
$13,753,125,000 | 1.13% |
| Maravai Lifesciences Holdings, Inc. |
171.31%
1,846,140
|
$13,218,362,000 | 1.09% |
| Avid Bioservices Inc |
110.04%
1,820,779
|
$13,000,362,000 | 1.07% |
| Skechers U S A, Inc. |
14.43%
183,190
|
$12,662,093,000 | 1.04% |
| Sweetgreen, Inc. |
57.91%
419,875
|
$12,655,033,000 | 1.04% |
| Indie Semiconductor Inc |
10.68%
2,040,951
|
$12,592,668,000 | 1.04% |
| Dell Technologies Inc |
51.07%
89,992
|
$12,410,797,000 | 1.02% |
| Cellebrite Di Ltd |
10.73%
1,020,952
|
$12,200,376,000 | 1.00% |
| QuinStreet Inc |
102.79%
731,285
|
$12,132,018,000 | 1.00% |
| Orion Group Holdings Inc |
Opened
1,267,822
|
$12,056,987,000 | 0.99% |
| Meta Platforms Inc |
6.94%
23,661
|
$11,930,349,000 | 0.98% |
| Reddit Inc |
Opened
186,046
|
$11,886,479,000 | 0.98% |
| Kura Sushi USA, Inc. |
26.27%
187,875
|
$11,853,034,000 | 0.98% |
| Arcturus Therapeutics Hldgs |
98.20%
484,907
|
$11,807,485,000 | 0.97% |
| Phathom Pharmaceuticals Inc |
Opened
1,130,089
|
$11,639,917,000 | 0.96% |
| Celsius Holdings Inc |
97.95%
196,493
|
$11,217,785,000 | 0.92% |
| AeroVironment Inc. |
32.47%
61,280
|
$11,162,765,000 | 0.92% |
| Gds Hldgs Ltd |
Closed
1,663,662
|
$11,063,352,000 | |
| Agnico Eagle Mines Ltd |
45.77%
169,030
|
$11,054,562,000 | 0.91% |
| Similarweb Ltd. |
33.00%
1,367,259
|
$10,623,602,000 | 0.87% |
| Flex Ltd |
17.05%
356,839
|
$10,523,182,000 | 0.87% |
| Oracle Corp. |
37.84%
72,110
|
$10,181,932,000 | 0.84% |
| SMART Global Holdings Inc |
36.25%
441,815
|
$10,104,309,000 | 0.83% |
| Northern Oil & Gas Inc |
9.96%
267,170
|
$9,930,709,000 | 0.82% |
| IES Holdings Inc |
Opened
69,455
|
$9,677,165,000 | 0.80% |
| Payoneer Global Inc |
38.36%
1,677,402
|
$9,292,807,000 | 0.77% |
| Crocs Inc |
52.42%
63,373
|
$9,248,656,000 | 0.76% |
| Couchbase Inc |
16.68%
491,944
|
$8,982,897,000 | 0.74% |
| Vertiv Holdings Co |
21.13%
102,466
|
$8,870,482,000 | 0.73% |
| Gates Indl Corp Plc |
157.19%
558,192
|
$8,825,016,000 | 0.73% |
| Royalty Pharma plc |
Closed
288,378
|
$8,758,040,000 | |
| AngloGold Ashanti Plc. |
38.50%
331,286
|
$8,325,217,000 | 0.69% |
| Mitek Sys Inc |
Opened
742,728
|
$8,303,699,000 | 0.68% |
| Teck Resources Ltd |
Opened
158,961
|
$7,614,232,000 | 0.63% |
| Enova International Inc. |
1.16%
122,081
|
$7,599,542,000 | 0.63% |
| Repay Hldgs Corp |
12.31%
715,111
|
$7,551,572,000 | 0.62% |
| Baidu Inc |
55.91%
84,847
|
$7,337,569,000 | 0.60% |
| AXT Inc |
Closed
1,596,232
|
$7,326,705,000 | |
| Scorpio Tankers Inc |
24.39%
90,006
|
$7,316,588,000 | 0.60% |
| MYT Netherlands Parent B.V. |
94.22%
1,382,816
|
$7,052,362,000 | 0.58% |
| Eldorado Gold Corp. |
17.95%
472,142
|
$6,982,980,000 | 0.57% |
| Applied Optoelectronics Inc |
41.39%
841,059
|
$6,972,379,000 | 0.57% |
| Bio Rad Labs Inc |
72.36%
25,150
|
$6,868,717,000 | 0.57% |
| SLM Corp. |
688.48%
318,697
|
$6,625,711,000 | 0.55% |
| Maxcyte Inc |
1.98%
1,687,650
|
$6,615,588,000 | 0.54% |
| Mdu Res Group Inc |
Opened
262,014
|
$6,576,551,000 | 0.54% |
| Infinera Corp. |
Opened
1,077,664
|
$6,562,974,000 | 0.54% |
| GFL Environmental Inc. |
Closed
189,386
|
$6,533,817,000 | |
| BrightView Holdings Inc |
32.65%
485,165
|
$6,452,695,000 | 0.53% |
| Take-Two Interactive Software, Inc. |
40.12%
41,384
|
$6,434,798,000 | 0.53% |
| Sunopta, Inc. |
47.78%
1,183,964
|
$6,393,406,000 | 0.53% |
| Crescent Pt Energy Corp |
Closed
776,860
|
$6,362,483,000 | |
| Primoris Svcs Corp |
Opened
126,542
|
$6,313,180,000 | 0.52% |
| Veren Inc. |
Opened
791,988
|
$6,232,946,000 | 0.51% |
| Opera Ltd |
Opened
435,464
|
$6,113,915,000 | 0.50% |
| Radnet Inc |
7.84%
101,347
|
$5,971,365,000 | 0.49% |
| Potbelly Corp |
35.27%
741,766
|
$5,956,381,000 | 0.49% |
| International Seaways Inc |
9.35%
93,191
|
$5,510,384,000 | 0.45% |
| Techtarget Inc. |
Closed
162,883
|
$5,388,170,000 | |
| Akamai Technologies Inc |
Opened
59,716
|
$5,379,217,000 | 0.44% |
| Super Hi Intl Hldg Ltd |
Opened
296,540
|
$5,337,720,000 | 0.44% |
| OrthoPediatrics corp |
Opened
185,329
|
$5,330,062,000 | 0.44% |
| CryoPort Inc |
Closed
295,652
|
$5,233,040,000 | |
| Custom Truck One Source Inc |
4.65%
1,186,380
|
$5,160,753,000 | 0.42% |
| Navios Maritime Partners L.P. |
2.21%
101,090
|
$5,158,623,000 | 0.42% |
| Alpha &omega Semiconductor |
Opened
137,995
|
$5,156,873,000 | 0.42% |
| DigitalOcean Holdings, Inc. |
Closed
132,137
|
$5,044,991,000 | |
| Navigator Hldgs Ltd |
7.07%
287,156
|
$5,013,744,000 | 0.41% |
| Overseas Shipholding Group I |
Closed
771,227
|
$4,935,853,000 | |
| Nuvei Corporation |
Closed
154,989
|
$4,900,752,000 | |
| Warby Parker Inc. |
69.65%
302,898
|
$4,864,542,000 | 0.40% |
| Extreme Networks Inc. |
Opened
360,104
|
$4,843,399,000 | 0.40% |
| Ultra Clean Hldgs Inc |
Closed
99,992
|
$4,593,632,000 | |
| Forrester Resh Inc |
33.05%
264,877
|
$4,524,099,000 | 0.37% |
| Applied Digital Corp |
37.28%
756,556
|
$4,501,508,000 | 0.37% |
| Telos Corp Md |
50.56%
1,110,557
|
$4,464,439,000 | 0.37% |
| Walkme Ltd |
86.19%
313,839
|
$4,384,331,000 | 0.36% |
| Identiv Inc |
29.65%
1,014,886
|
$4,364,010,000 | 0.36% |
| Amphastar Pharmaceuticals In |
19.62%
108,863
|
$4,354,520,000 | 0.36% |
| Altimmune Inc |
27.84%
640,242
|
$4,257,609,000 | 0.35% |
| Viking Therapeutics Inc |
18.61%
79,422
|
$4,210,160,000 | 0.35% |
| Oatly Group AB |
Opened
4,384,079
|
$4,121,034,000 | 0.34% |
| Limbach Holdings Inc |
Opened
72,352
|
$4,118,999,000 | 0.34% |
| AZZ Inc |
Closed
51,323
|
$3,967,781,000 | |
| AMKOR Technology Inc. |
Opened
98,394
|
$3,937,728,000 | 0.32% |
| Hudson Technologies, Inc. |
35.40%
442,896
|
$3,893,056,000 | 0.32% |
| Pacira BioSciences Inc |
Opened
131,901
|
$3,773,688,000 | 0.31% |
| Matrix Svc Co |
47.59%
379,070
|
$3,764,165,000 | 0.31% |
| Alarm.com Holdings Inc |
Closed
50,201
|
$3,638,066,000 | |
| Bel Fuse Inc. |
49.64%
54,237
|
$3,538,422,000 | 0.29% |
| Douglas Elliman Inc. |
Closed
2,215,469
|
$3,500,441,000 | |
| Gen Restaurent Group |
0.12%
366,118
|
$3,317,029,000 | 0.27% |
| Skyline Champion Corp |
44.91%
44,426
|
$3,009,862,000 | 0.25% |
| 1stdibs Com Inc |
0.96%
660,953
|
$2,967,679,000 | 0.24% |
| EverQuote Inc |
61.81%
140,232
|
$2,925,240,000 | 0.24% |
| Porch Group Inc |
Closed
631,459
|
$2,721,588,000 | |
| Microsoft Corporation |
0.04%
5,300
|
$2,368,835,000 | 0.20% |
| Opko Health Inc |
41.79%
1,886,749
|
$2,358,436,000 | 0.19% |
| Mamas Creations Inc |
Opened
344,024
|
$2,318,722,000 | 0.19% |
| WEX Inc |
Opened
12,863
|
$2,278,552,000 | 0.19% |
| Remitly Global Inc |
2.31%
179,892
|
$2,180,291,000 | 0.18% |
| Lantronix Inc |
Closed
578,180
|
$2,058,321,000 | |
| Semtech Corp. |
61.32%
64,182
|
$1,917,758,000 | 0.16% |
| Casella Waste Sys Inc |
0.06%
15,682
|
$1,555,968,000 | 0.13% |
| Pagaya Technologies Ltd |
Closed
149,584
|
$1,510,798,000 | |
| Alphabet Inc |
0.02%
6,171
|
$1,131,885,000 | 0.09% |
| Th International Limited |
Closed
776,241
|
$892,677,000 | |
| Icad Inc |
45.92%
653,372
|
$849,384,000 | 0.07% |
| Bluelinx Hldgs Inc |
No change
4,229
|
$393,678,000 | 0.03% |
| PLBY Group, Inc. |
Closed
289,354
|
$303,822,000 | |
| Richardson Electrs Ltd |
Closed
11,950
|
$110,060,000 | |
| Nerdy Inc |
98.90%
32,100
|
$53,607,000 | 0.00% |
| Harvard Bioscience Inc. |
98.28%
12,000
|
$34,200,000 | 0.00% |
| No transactions found | |||
| Showing first 500 out of 139 holdings | |||
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