Select Equity Group, L.P.

Activist investor & 5%+ owner · SC 13D/13G filings

Total Filings

122

Stocks Covered

Latest Filing

Nov 14, 2025

Filings

MTN

Vail Resorts, Inc.

SC 13G/A · Feb 14, 2024

7.2%

2.7M shares

PRM

(Amendment No. 3)* Perimeter Solutions, SA

SC 13G/A · Nov 13, 2023

4.4%

6.8M shares

OSW

OneSpa World Holdings Limited

SC 13G/A · Jun 2, 2023

10.2%

8.9M shares

SGI

Tempur Sealy International, Inc.

SC 13G/A · Jun 2, 2023

10.6%

18.2M shares

SCI

Service Corporation International

SC 13G · Feb 14, 2023

5.4%

8.4M shares

MTN

Vail Resorts, Inc.

SC 13G · Feb 14, 2023

6.5%

2.6M shares

SGI

Tempur Sealy International, Inc.

SC 13G · Feb 14, 2023

5.6%

9.6M shares

TTC

The Toro Company

SC 13G · Feb 14, 2023

5.6%

5.8M shares

AEO

(Amendment No. 4)* American Eagle Outfitters, Inc.

SC 13G/A · Feb 14, 2023

0.1%

276 shares

PTLO

Portillo's Inc.

SC 13G/A · Feb 14, 2023

1.6%

796K shares

PWSC

Powerschool Holdings, Inc.

SC 13G/A · Feb 14, 2023

2.1%

3.4M shares

PKI

PerkinElmer, Inc.

SC 13G/A · Feb 14, 2023

7.7%

9.8M shares

PAY

Paymentus Holdings, Inc.

SC 13G/A · Feb 14, 2023

0.0%

0 shares

SIG

Signet Jewelers Limited

SC 13G/A · Feb 14, 2023

21.4%

9.7M shares

ENTG

(Amendment No. 1)* Entegris, Inc.

SC 13G/A · Feb 14, 2023

5.0%

7.5M shares

EVBG

(Amendment No. 4)* Everbridge, Inc.

SC 13G/A · Feb 14, 2023

0.0%

0 shares

CDAY

(Amendment No. 2)* Ceridian HCM Holding Inc.

SC 13G/A · Feb 14, 2023

12.0%

18.5M shares

OSW

OneSpa World Holdings Limited

SC 13G · Feb 14, 2023

8.8%

7.0M shares

Sensata Technologies Holdings PLC

SC 13G/A · Feb 14, 2023

6.4%

9.9M shares

PRM

Perimeter Solutions, SA

SC 13G/A · Feb 14, 2023

10.8%

17.4M shares

MORN

Morningstar, Inc.

SC 13G/A · Feb 14, 2023

9.3%

3.9M shares

MLM

Martin Marietta Materials, Inc.

SC 13G/A · Feb 14, 2023

5.8%

3.6M shares

MRVI

Maravai LifeSciences Holdings, Inc.

SC 13G/A · Feb 14, 2023

1.9%

2.5M shares

IBKR

Interactive Brokers Group, Inc.

SC 13G/A · Feb 14, 2023

3.1%

3.2M shares

MIDD

The Middleby Corporation

SC 13G · Feb 14, 2023

8.4%

4.5M shares

NAPA

(Amendment No. 1)* The Duckhorn Portfolio, Inc.

SC 13G/A · Feb 14, 2023

5.7%

6.5M shares

CNM

(Amendment No. 1)* Core & Main, Inc.

SC 13G/A · Feb 14, 2023

5.4%

9.3M shares

CLVT

(Amendment No. 2)* Clarivate Plc

SC 13G/A · Feb 14, 2023

1.7%

11.4M shares

CDW

(Amendment No. 2)* CDW Corporation

SC 13G/A · Feb 14, 2023

5.0%

6.8M shares

BRO

(Amendment No. 1)* Brown & Brown, Inc.

SC 13G/A · Feb 14, 2023

6.1%

17.3M shares

SSNC

(Amendment No.1)* SS&C Technologies Holdings, Inc.

SC 13G/A · Feb 14, 2023

0.1%

84 shares

PRM

(Amendment No. 1)* Perimeter Solutions, SA

SC 13G/A · Dec 9, 2022

10.7%

17.0M shares

OSW

OneSpa World Holdings Limited

SC 13G · Dec 2, 2022

8.8%

7.0M shares

MRVI

Maravai LifeSciences Holdings, Inc.

SC 13G/A · Nov 10, 2022

8.8%

11.5M shares

SIG

Signet Jewelers Limited

SC 13G/A · Oct 14, 2022

21.2%

9.8M shares

AEO

American Eagle Outfitters, Inc.

SC 13G/A · Aug 2, 2022

7.2%

12.1M shares

AEO

American Eagle Outfitters, Inc.

SC 13G/A · May 27, 2022

14.7%

24.9M shares

SIG

Signet Jewelers Limited

SC 13G/A · May 27, 2022

20.3%

9.6M shares

PTLO

(Amendment No. 2)* Portillo's Inc.

SC 13G/A · May 23, 2022

5.4%

1.9M shares

CDAY

Ceridian HCM Holding Inc.

SC 13G/A · May 9, 2022

10.7%

16 shares

PRM

Perimeter Solutions, SA

SC 13G · May 4, 2022

9.3%

15.4M shares

SIG

Signet Jewelers Limited

SC 13G/A · Mar 22, 2022

16.2%

8.1M shares

HLMN

(Amendment No. 3)* Hillman Solutions Corp.

SC 13G/A · Feb 12, 2022

0.0%

0 shares

LEVI

Levi Strauss & Co.

SC 13G/A · Feb 12, 2022

0.0%

0 shares

MORN

Morningstar, Inc.

SC 13G/A · Feb 12, 2022

11.3%

4.9M shares

PKI

PerkinElmer, Inc.

SC 13G/A · Feb 12, 2022

4.9%

6.2M shares

PAY

Paymentus Holdings, Inc.

SC 13G · Feb 12, 2022

5.8%

964K shares

SSNC

SS&C Technologies Holdings, Inc.

SC 13G · Feb 12, 2022

6.2%

15.7M shares

IBKR

Interactive Brokers Group, Inc.

SC 13G · Feb 12, 2022

5.8%

5.7M shares

PWSC

Powerschool Holdings, Inc.

SC 13G · Feb 12, 2022

9.1%

14.3M shares