Iron Triangle Partners L.P. 13F annual report

Iron Triangle Partners L.P. is an investment fund managing more than $966 billion ran by Michael O'brien. There are currently 28 companies in Mr. O'brien’s portfolio. The largest investments include Acadia Healthcare Company In and Dexcom Inc, together worth $137 billion.

$966 billion Assets Under Management (AUM)

As of 8th May 2024, Iron Triangle Partners L.P.’s top holding is 902,813 shares of Acadia Healthcare Company In currently worth over $71.5 billion and making up 7.4% of the portfolio value. In addition, the fund holds 471,631 shares of Dexcom Inc worth $65.4 billion, whose value grew 23.4% in the past six months. The third-largest holding is Icon Plc worth $50.7 billion and the next is Abbvie Inc worth $50.3 billion, with 276,098 shares owned.

Currently, Iron Triangle Partners L.P.'s portfolio is worth at least $966 billion. 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 Iron Triangle Partners L.P.

The Iron Triangle Partners L.P. office and employees reside in Cos Cob, Connecticut. According to the last 13-F report filed with the SEC, Michael O'brien serves as the Chief Operating Officer at Iron Triangle Partners L.P..

Recent trades

In the most recent 13F filing, Iron Triangle Partners L.P. revealed that it had opened a new position in West Pharmaceutical Svsc Inc and bought 119,736 shares worth $47.4 billion.

The investment fund also strengthened its position in Acadia Healthcare Company In by buying 399,366 additional shares. This makes their stake in Acadia Healthcare Company In total 902,813 shares worth $71.5 billion.

On the other hand, there are companies that Iron Triangle Partners L.P. is getting rid of from its portfolio. Iron Triangle Partners L.P. closed its position in Universal Hlth Svcs Inc on 15th May 2024. It sold the previously owned 470,000 shares for $74.2 billion. Michael O'brien also disclosed a decreased stake in Icon Plc by 0.6%. This leaves the value of the investment at $50.7 billion and 150,853 shares.

One of the average hedge funds

The two most similar investment funds to Iron Triangle Partners L.P. are Woodstock Corp and Mizuho Bank. They manage $966 billion and $967 billion respectively.


Michael O'brien investment strategy

Iron Triangle Partners L.P.’s portfolio is diversified across 3 sectors. Currently, their heaviest sector is Health Care — making up 66.2% of the total portfolio value. The fund focuses on investments in the United States as 64.3% 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 32% of the total holdings value. On the other hand, small-cap stocks make up only approximately 0.1% of the portfolio. The average market cap of the portfolio companies is close to $30.8 billion.

The complete list of Iron Triangle Partners L.P. trades based on 13F SEC filings

These positions were updated on May 15th 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
Universal Hlth Svcs Inc
Closed
470,000
$74,151,900,000
Acadia Healthcare Company In
79.33%
902,813
$71,520,846,000 7.40%
Dexcom Inc
214.42%
471,631
$65,415,220,000 6.77%
Icon Plc
56.90%
150,853
$50,679,065,000 5.24%
Abbvie Inc
38.64%
276,098
$50,277,446,000 5.20%
Intuitive Surgical Inc
3.61%
124,337
$49,621,653,000 5.13%
Exact Sciences Corp.
40.00%
700,000
$48,342,000,000 5.00%
West Pharmaceutical Svsc Inc
Opened
119,736
$47,380,733,000 4.90%
Align Technology, Inc.
118.40%
141,958
$46,550,867,000 4.82%
Boston Scientific Corp.
Closed
850,000
$45,976,500,000
Illumina Inc
Opened
330,758
$45,419,689,000 4.70%
United Therapeutics Corp
Closed
200,000
$44,150,000,000
Bruker Corp
Opened
466,521
$43,824,983,000 4.53%
Glaukos Corporation
38.56%
429,525
$40,499,912,000 4.19%
Teva Pharmaceutical Inds Ltd
Opened
2,769,864
$39,082,781,000 4.04%
Brookdale Sr Living Inc
40.99%
5,897,960
$38,985,516,000 4.03%
Establishment Labs Holdings Inc
Closed
537,906
$36,905,731,000
Apellis Pharmaceuticals Inc
Opened
550,000
$32,329,000,000 3.35%
Pacific Biosciences Calif In
Closed
2,400,000
$31,920,000,000
Fortrea Hldgs Inc
Opened
791,233
$31,760,093,000 3.29%
Neurocrine Biosciences, Inc.
Opened
220,000
$30,342,400,000 3.14%
Avantor, Inc.
Opened
1,150,000
$29,405,500,000 3.04%
Cooper Cos Inc
Closed
75,000
$28,757,250,000
Surgery Partners Inc
Closed
580,973
$26,137,975,000
Shockwave Med Inc
Opened
79,736
$25,964,434,000 2.69%
Schrodinger, Inc.
Opened
863,323
$23,309,721,000 2.41%
Syndax Pharmaceuticals Inc
Opened
973,057
$23,158,757,000 2.40%
Inspire Med Sys Inc
Closed
70,000
$22,724,800,000
Spdr Ser Tr
Opened
226,066
$21,451,403,000 2.22%
10x Genomics, Inc.
Closed
380,000
$21,219,200,000
Elanco Animal Health Inc
Opened
1,297,132
$21,117,309,000 2.19%
Cytokinetics Inc
Opened
300,000
$21,033,000,000 2.18%
Mckesson Corporation
Opened
37,419
$20,088,390,000 2.08%
Oscar Health, Inc.
Opened
1,334,503
$19,844,060,000 2.05%
Argenx Se
Opened
45,000
$17,717,400,000 1.83%
TransMedics Group, Inc.
Closed
180,000
$15,116,400,000
SpringWorks Therapeutics, Inc.
Closed
464,935
$12,190,596,000
908 Devices Inc.
15.64%
1,040,768
$7,857,798,000 0.81%
Olink Hldg Ab
Closed
314,795
$5,902,406,000
Nyxoah S A
Opened
253,025
$3,413,307,000 0.35%
No transactions found
Showing first 500 out of 40 holdings