Archived edition · SEC Form 4

Insider buying — week of September 30, 2026

Filings as of Sep 30, 2026 · frozen, never updated · current reading

Net buyers: 129
Clusters: 30
Tracked: 1447

Participation was mixed. 129 of 1447 tracked companies finished the window net buyers of their own shares (9%); the rest were flat or net sellers.

TSM is the story: 30 separate insiders there filed open-market purchases in this window, which is a company-wide pattern rather than one executive acting alone. 29 other companies in this edition also drew more than one buyer.

The dollars are concentrated rather than spread: RSG alone is 60% of the net open-market buying in the 10 names below.

More separate purchases were filed at GPI than at any other name here — 62 of them.

The individual purchases listed below were filed between Sep 24, 2026 and Sep 29, 2026, across 5 companies.

Companies with more than one insider buying

TSM Taiwan Semiconductor officer/director

30 buyers $1,302,205

CC Chemours Co officer/director

7 buyers $488,619

KMPR Kemper Corp officer/director

5 buyers $367,880

GME GameStop Corp officer/director

4 buyers $59,065,408

DKS Dick's Sporting Goods Inc officer/director

4 buyers $3,843,905

BSX Boston Scientific Corp officer/director

4 buyers $9,486,038

APTV Aptiv PLC officer/director

4 buyers $8,254,508

PFE Pfizer Inc officer/director

3 buyers $2,876,849

CBU Community Financial System, Inc. officer/director

3 buyers $75,265

COO Cooper Cos Inc officer/director

3 buyers $1,880,110

KRMN Karman Holdings Inc officer/director

3 buyers $1,036,485

CELH Celsius Holdings Inc officer/director

3 buyers $1,830,043

MATW Matthews Intl Corp officer/director

3 buyers $318,112

HOG Harley-Davidson Inc officer/director

3 buyers $1,358,154

REZI Resideo Technologies Inc officer/director

3 buyers $848,123

TNC Tennant Co officer/director

3 buyers $849,240

MTDR Matador Resources Co officer/director

3 buyers $1,211,793

ACDC Profrac Holding Corp officer/director

3 buyers $9,753,790

ABCL Abcellera Biologics Inc officer/director

3 buyers $1,545,680

CE Celanese Corp officer/director

3 buyers $230,062

CHCO City Holding Co officer/director

4 buyers -$647,973

PNFP Pinnacle Financial Partners officer/director

3 buyers -$17,854,073

BABA Alibaba Group Holding Ltd officer/director

2 buyers $24,123,332

TPL Texas Pacific Land Corp officer/director

2 buyers $4,315

MGY Magnolia Oil & Gas Corp officer/director

2 buyers $324,571

UBER Uber Technologies Inc officer/director

2 buyers $13,305,343

ADC Agree Realty Corp officer/director

2 buyers $1,876,522

AAON Aaon Inc officer/director

2 buyers $109,584

CAVA Cava Group Inc officer/director

2 buyers $482,340

PLNT Planet Fitness Inc officer/director

2 buyers $253,519

“Buyers” counts separate insiders who filed an open-market purchase (Form 4 code P) at that company in the window. The dollar figure is net of open-market sales by insiders at the same company, so it can be negative even where several people bought. The officer/director tag means at least one buyer filed a role other than 10% owner or an unspecified “insider”; untagged means no such role was filed, not that the buyers were anything in particular.

Largest net open-market buying this edition

RSG Republic Services Inc

$945,617,76249 buys

LEN Lennar Corp

$348,777,94125 buys

GPI Group 1 Automotive Inc

$89,462,04962 buys

GME GameStop Corp

$59,065,4088 buys

CRBG Corebridge Financial Inc

$45,160,4356 buys

BABA Alibaba Group Holding Ltd

$24,123,3323 buys

AAT American Assets Trust Inc

$19,242,81916 buys

ENR Energizer Holdings Inc

$13,479,86630 buys

UBER Uber Technologies Inc

$13,305,3433 buys

AMR Alpha Metallurgical Resources, Inc.

$12,635,23226 buys

Net value = open-market buys minus sells as disclosed on Form 4 (code P). Grants/options/withholding excluded.

Who filed, and when

GME Ryan Cohen · Director & Officer

446,500 sh Sep 29, 2026

GME Ryan Cohen · Director & Officer

3,500 sh Sep 29, 2026