# EDGAR Filing Document

**Accession Number:** 0001779763
**File Stem:** 0001172661-26-000928
**Filing Date:** 2026-2
**Character Count:** 6454
**Document Hash:** ac1307c8bc1e0e37743c033fe1b3a987
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001172661-26-000928.hdr.sgml**: 20260217

**ACCESSION NUMBER**: 0001172661-26-000928

**CONFORMED SUBMISSION TYPE**: 13F-HR

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20251231

**FILED AS OF DATE**: 20260217

**DATE AS OF CHANGE**: 20260217

**EFFECTIVENESS DATE**: 20260217

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Iron Triangle Partners LP
- **CENTRAL INDEX KEY:** 0001779763

**ORGANIZATION NAME:**
- **EIN:** 833685944
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 13F-HR
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 028-20024
- **FILM NUMBER:** 26638014

**BUSINESS ADDRESS:**
- **STREET 1:** 1 RIVER ROAD, 1ST FLOOR
- **CITY:** COS COB
- **STATE:** CT
- **ZIP:** 06807
- **BUSINESS PHONE:** 646-779-6380

**MAIL ADDRESS:**
- **STREET 1:** 1 RIVER ROAD, 1ST FLOOR
- **CITY:** COS COB
- **STATE:** CT
- **ZIP:** 06807

### FORM 13F COVER PAGE

**Report for the Calendar Year or Quarter Ended:** 12-31-2025

**Check here if Amendment** [ ] **Amendment Number:** 

**This Amendment (Check only one.):** [ ] is a restatement.

[ ] adds new holdings entries.

**Institutional Investment Manager Filing this Report:**

**Name:** Iron Triangle Partners LP<br>**Address:** 1 River Road 1st Floor<br>Cos Cob, CT 06807

**Form 13F File Number:** 028-20024

**CRD Number (if applicable):** 000302077

**SEC File Number (if applicable):** 801-115307

The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form.

**Person Signing this Report on Behalf of Reporting Manager:**

**Name:** Michael O'Brien<br>**Title:** Chief Operating Officer<br>**Phone:** 646-779-6395

**Signature, Place, and Date of Signing:**

/s/ Michael O'Brien  Cos Cob, CT  02-17-2026<br>[Signature]  [City, State]  [Date]

**Report Type (Check only one.):**

[x] **13F HOLDINGS REPORT.** (Check here if all holdings of this reporting manager are reported in this report.)

[ ] **13F NOTICE.** (Check here if no holdings are reported in this report, and all holdings are reported by other reporting manager(s).)

[ ] **13F COMBINATION REPORT.** (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).)

### Form 13F Summary Page

**Report Summary:**

**Number of Other Included Managers:** 0

**Form 13F Information Table Entry Total:** 27

**Form 13F Information Table Value Total:** $874680144

      (round to nearest dollar)

**List of Other Included Managers:**

Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report.

[If there are no entries in this list, state “NONE” and omit the column headings and list entries.]

**NONE**

### FORM 13F INFORMATION TABLE

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| NAME OF ISSUER | TITLE OF CLASS | CUSIP | FIGI | VALUE (x$1000) | SHRS OR PRN AMT | SH/PRN | PUT/CALL | INVESTMENT DISCRETION | OTHER MANAGER | VOTING AUTHORITY | VOTING AUTHORITY | VOTING AUTHORITY |
| NAME OF ISSUER | TITLE OF CLASS | CUSIP | FIGI | VALUE (x$1000) | SHRS OR PRN AMT | SH/PRN | PUT/CALL | INVESTMENT DISCRETION | OTHER MANAGER | SOLE | SHARED | NONE |
| ABBOTT LABS | COM | 002824100 |  | 21967472 | 175333 | SH |  | SOLE |  | 175333 | 0 | 0 |
| ADAPTHEALTH CORP | COMMON STOCK | 00653Q102 |  | 25985670 | 2609003 | SH |  | SOLE |  | 2609003 | 0 | 0 |
| ALPHATEC HLDGS INC | COM NEW | 02081G201 |  | 27050812 | 1285685 | SH |  | SOLE |  | 1285685 | 0 | 0 |
| BIOHAVEN LTD | COM | G1110E107 |  | 10819613 | 958336 | SH |  | SOLE |  | 958336 | 0 | 0 |
| BIO-TECHNE CORP | COM | 09073M104 |  | 27488323 | 467409 | SH |  | SOLE |  | 467409 | 0 | 0 |
| BOSTON SCIENTIFIC CORP | COM | 101137107 |  | 40120706 | 420773 | SH |  | SOLE |  | 420773 | 0 | 0 |
| BRIGHTSPRING HEALTH SVCS INC | COM | 10950A106 |  | 33608641 | 897427 | SH |  | SOLE |  | 897427 | 0 | 0 |
| BROOKDALE SR LIVING INC | COM | 112463104 |  | 37675044 | 3491663 | SH |  | SOLE |  | 3491663 | 0 | 0 |
| BRUKER CORP | COM | 116794108 |  | 37423242 | 794380 | SH |  | SOLE |  | 794380 | 0 | 0 |
| CHARLES RIV LABS INTL INC | COM | 159864107 |  | 75748141 | 379728 | SH |  | SOLE |  | 379728 | 0 | 0 |
| CVS HEALTH CORP | COM | 126650100 |  | 34319788 | 432457 | SH |  | SOLE |  | 432457 | 0 | 0 |
| DIANTHUS THERAPEUTICS INC | COM | 252828108 |  | 9508383 | 230730 | SH |  | SOLE |  | 230730 | 0 | 0 |
| DOXIMITY INC | CL A | 26622P107 |  | 30401231 | 686568 | SH |  | SOLE |  | 686568 | 0 | 0 |
| ELI LILLY  CO | COM | 532457108 |  | 37662161 | 35045 | SH |  | SOLE |  | 35045 | 0 | 0 |
| ENVISTA HOLDINGS CORPORATION | COM | 29415F104 |  | 25763344 | 1186704 | SH |  | SOLE |  | 1186704 | 0 | 0 |
| FORTREA HLDGS INC | COMMON STOCK | 34965K107 |  | 34264244 | 1986333 | SH |  | SOLE |  | 1986333 | 0 | 0 |
| IDEAYA BIOSCIENCES INC | COM | 45166A102 |  | 16160922 | 467484 | SH |  | SOLE |  | 467484 | 0 | 0 |
| INTUITIVE SURGICAL INC | COM NEW | 46120E602 |  | 53497799 | 94459 | SH |  | SOLE |  | 94459 | 0 | 0 |
| JAZZ PHARMACEUTICALS PLC | SHS USD | G50871105 |  | 49668900 | 292170 | SH |  | SOLE |  | 292170 | 0 | 0 |
| MERIT MED SYS INC | COM | 589889104 |  | 33992072 | 385660 | SH |  | SOLE |  | 385660 | 0 | 0 |
| MINERALYS THERAPEUTICS INC | COM | 603170101 |  | 9329615 | 257085 | SH |  | SOLE |  | 257085 | 0 | 0 |
| REPLIGEN CORP | COM | 759916109 |  | 52512870 | 320474 | SH |  | SOLE |  | 320474 | 0 | 0 |
| UNITEDHEALTH GROUP INC | COM | 91324P102 |  | 23149294 | 70126 | SH |  | SOLE |  | 70126 | 0 | 0 |
| VERACYTE INC | COM | 92337F107 |  | 41274461 | 980391 | SH |  | SOLE |  | 980391 | 0 | 0 |
| VERTEX PHARMACEUTICALS INC | COM | 92532F100 |  | 34867918 | 76910 | SH |  | SOLE |  | 76910 | 0 | 0 |
| WATERS CORP | COM | 941848103 |  | 39945582 | 105167 | SH |  | SOLE |  | 105167 | 0 | 0 |
| XENON PHARMACEUTICALS INC | COM | 98420N105 |  | 10473896 | 233688 | SH |  | SOLE |  | 233688 | 0 | 0 |

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