# EDGAR Filing Document

**Accession Number:** 0001443689
**File Stem:** 0001443689-23-000005
**Filing Date:** 2023-2
**Character Count:** 8042
**Document Hash:** d3887f02dcb3a9a03f1bb2368ffba56d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001443689-23-000005.hdr.sgml**: 20230214

**ACCESSION NUMBER**: 0001443689-23-000005

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

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20221231

**FILED AS OF DATE**: 20230214

**DATE AS OF CHANGE**: 20230213

**EFFECTIVENESS DATE**: 20230214

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Senator Investment Group LP
- **CENTRAL INDEX KEY:** 0001443689
- **IRS NUMBER:** 262124641
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 13F-HR
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 028-13389
- **FILM NUMBER:** 23621490

**BUSINESS ADDRESS:**
- **STREET 1:** 510 MADISON AVENUE
- **STREET 2:** 28TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10022
- **BUSINESS PHONE:** (212) 376-4305

**MAIL ADDRESS:**
- **STREET 1:** 510 MADISON AVENUE
- **STREET 2:** 28TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10022

### FORM 13F COVER PAGE

**Report for the Calendar Year or Quarter Ended:** 12-31-2022

**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:** Senator Investment Group LP<br>**Address:** 510 Madison Avenue<br>28th Floor<br>New York, NY 10022

**Form 13F File Number:** 028-13389

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:** Edward Larmann<br>**Title:** Chief Operating Officer<br>**Phone:** (212) 376-4305

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

Edward Larmann Chief Operating Officer  New York, NY  02-13-2023<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:** 42

**Form 13F Information Table Value Total:** $1111636995

      (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 |
| ADAPTIVE BIOTECHNOLOGIES COR | COM | 00650F109 |  | 7640000 | 1000000 | SH |  | SOLE |  | 1000000 | 0 | 0 |
| ALBEMARLE CORP | COM | 012653101 |  | 19517400 | 90000 | SH |  | SOLE |  | 90000 | 0 | 0 |
| ALKAMI TECHNOLOGY INC | COM | 01644J108 |  | 14590000 | 1000000 | SH |  | SOLE |  | 1000000 | 0 | 0 |
| APOLLO GLOBAL MGMT INC | COM | 03769M106 |  | 54221500 | 850000 | SH |  | SOLE |  | 850000 | 0 | 0 |
| ARGENX SE | SPONSORED ADR | 04016X101 |  | 15153200 | 40000 | SH |  | SOLE |  | 40000 | 0 | 0 |
| BIOGEN INC | COM | 09062X103 |  | 13846000 | 50000 | SH |  | SOLE |  | 50000 | 0 | 0 |
| BIOMARIN PHARMACEUTICAL INC | COM | 09061G101 |  | 15523500 | 150000 | SH |  | SOLE |  | 150000 | 0 | 0 |
| BOWLERO CORP | CL A COM | 10258P102 |  | 13480000 | 1000000 | SH |  | SOLE |  | 1000000 | 0 | 0 |
| BOYD GAMING CORP | COM | 103304101 |  | 19085500 | 350000 | SH |  | SOLE |  | 350000 | 0 | 0 |
| BROOKDALE SR LIVING INC | NOTE 2.000%10/1 | 112463AC8 |  | 12924613 | 16900000 | SH |  | SOLE |  | 16900000 | 0 | 0 |
| CALIFORNIA RES CORP | COM STOCK | 13057Q305 |  | 8702000 | 200000 | SH |  | SOLE |  | 200000 | 0 | 0 |
| CAZOO GROUP LTD | DEBT 2.000% 2/1 | 14986TAA3 |  | 18821242 | 32500000 | SH |  | SOLE |  | 32500000 | 0 | 0 |
| CSX CORP | COM | 126408103 |  | 34078000 | 1100000 | SH |  | SOLE |  | 1100000 | 0 | 0 |
| DANAHER CORPORATION | COM | 235851102 |  | 66355000 | 250000 | SH |  | SOLE |  | 250000 | 0 | 0 |
| ENGAGESMART INC | COMMON STOCK | 29283F103 |  | 17600000 | 1000000 | SH |  | SOLE |  | 1000000 | 0 | 0 |
| FERGUSON PLC NEW | SHS | G3421J106 |  | 57136500 | 450000 | SH |  | SOLE |  | 450000 | 0 | 0 |
| GOGORO INC | *W EXP 04/04/202 | G9491K105 |  | 4293000 | 1350000 | SH |  | SOLE |  | 1350000 | 0 | 0 |
| GOLDEN FALCON ACQUISITION CO | *W EXP 11/04/202 | 38102H109 |  | 9995000 | 1000000 | SH |  | SOLE |  | 1000000 | 0 | 0 |
| HUMANA INC | COM | 444859102 |  | 76828500 | 150000 | SH |  | SOLE |  | 150000 | 0 | 0 |
| IHEARTMEDIA INC | COM CL A | 45174J509 |  | 3065000 | 500000 | SH |  | SOLE |  | 500000 | 0 | 0 |
| ILLUMINA INC | COM | 452327109 |  | 40440000 | 200000 | SH |  | SOLE |  | 200000 | 0 | 0 |
| INTUITIVE SURGICAL INC | COM NEW | 46120E602 |  | 19901250 | 75000 | SH |  | SOLE |  | 75000 | 0 | 0 |
| META PLATFORMS INC | CL A | 30303M102 |  | 36102000 | 300000 | SH |  | SOLE |  | 300000 | 0 | 0 |
| MIRION TECHNOLOGIES INC | COM CL A | 60471A101 |  | 10906500 | 1650000 | SH |  | SOLE |  | 1650000 | 0 | 0 |
| NCR CORP NEW | COM | 62886E108 |  | 23410000 | 1000000 | SH |  | SOLE |  | 1000000 | 0 | 0 |
| NEW RELIC INC | COM | 64829B100 |  | 14112500 | 250000 | SH |  | SOLE |  | 250000 | 0 | 0 |
| NEXTERA ENERGY INC | COM | 65339F101 |  | 29260000 | 350000 | SH |  | SOLE |  | 350000 | 0 | 0 |
| NOVO-NORDISK A S | ADR | 670100205 |  | 27068000 | 200000 | SH |  | SOLE |  | 200000 | 0 | 0 |
| PACIFIC BIOSCIENCES CALIF IN | COM | 69404D108 |  | 8180000 | 1000000 | SH |  | SOLE |  | 1000000 | 0 | 0 |
| PATHFINDER ACQUISITION CORP | *W EXP 02/19/202 | G04119106 |  | 1510500 | 150000 | SH |  | SOLE |  | 150000 | 0 | 0 |
| PERIMETER SOLUTIONS SA | COMMON STOCK | L7579L106 |  | 15538000 | 1700000 | SH |  | SOLE |  | 1700000 | 0 | 0 |
| PRIVIA HEALTH GROUP INC | COM | 74276R102 |  | 22710000 | 1000000 | SH |  | SOLE |  | 1000000 | 0 | 0 |
| PROGRESSIVE CORP | COM | 743315103 |  | 18807950 | 145000 | SH |  | SOLE |  | 145000 | 0 | 0 |
| PROMETHEUS BIOSCIENCES INC | COM | 74349U108 |  | 11000000 | 100000 | SH |  | SOLE |  | 100000 | 0 | 0 |
| S GLOBAL INC | COM | 78409V104 |  | 63638600 | 190000 | SH |  | SOLE |  | 190000 | 0 | 0 |
| SAREPTA THERAPEUTICS INC | COM | 803607100 |  | 16197500 | 125000 | SH |  | SOLE |  | 125000 | 0 | 0 |
| SCION TECH GROWTH II | *W EXP 01/28/202 | G31070108 |  | 2192660 | 216666 | SH |  | SOLE |  | 216666 | 0 | 0 |
| SHIFT4 PMTS INC | CL A | 82452J109 |  | 13982500 | 250000 | SH |  | SOLE |  | 250000 | 0 | 0 |
| SONDER HOLDINGS INC | *W EXP 01/18/202 | 83542D102 |  | 186000 | 150000 | SH |  | SOLE |  | 150000 | 0 | 0 |
| SPDR S 500 ETF TR | TR UNIT | 78462F103 |  | 224103980 | 586000 | SH |  | SOLE |  | 586000 | 0 | 0 |
| SUNNOVA ENERGY INTL INC. | COM | 86745K104 |  | 27915500 | 1550000 | SH |  | SOLE |  | 1550000 | 0 | 0 |
| SVF INVESTMENT CORP | *W EXP 01/12/202 | G8601L102 |  | 1617600 | 160000 | SH |  | SOLE |  | 160000 | 0 | 0 |

---