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Total declarations
Companies
▲ Purchases (2 ops.)
▼ Sales (0 ops.)
Latest filing published 29 Jun 2026 for CARMAX INC. Read the official filing
Filing timeline
BuySaleWilliam C. Cobb
Insider track record
Disclosed buys
2
Disclosed sells
0
T+90 hit rate
0%
T+90 mean return
-8.2%
Across 1 buy signal with a settled T+90 return. Return basis: close on the day after publication.
Signal history
William C. Cobb: trading record in brief
Filings by William C. Cobb span 3 companies, the busiest being Frontdoor, Inc., Carmax Inc and Deluxe Corp. In total, 14 filings cover trades dated from 12 May 2021 to 26 June 2026.
The open-market record is one-sided, with 2 purchases worth €442k and not one sale. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. Other entries cover 4 share grants and 8 option exercises.
The newest entry dates from 29 June 2026: a share grant, in Carmax Inc. The last insider purchase was made public on 3 March 2025, 594 days ago. Filings reach the SEC (Form 4) feed a median of 2 days after the trade. The legal deadline for a Form 4 is two business days after the transaction. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.
Companies and markets linked to William C. Cobb
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations14 total
3,696 sharesCommon StockSEC:0001170010-26-000091:0
28,048 sharesCommon StockSEC:0001193125-26-137935:0
12,229 shares@ US$51.9555.4% of flowCommon StockSEC:0001193125-26-137935:1
32,342 sharesCommon StockSEC:0001193125-26-129038:0
11,789 sharesCommon StockSEC:0000950170-25-080893:0
3,391 shares0Common StockSEC:0000027996-25-000128:0
32,343 sharesCommon StockSEC:0000950170-25-046243:0
5,000 shares@ US$42.22445.9% of flowCommon StockSEC:0000950170-25-030961:0
Canonical exit: 1 Jun 2025 (T+90)
10,105 sharesCommon StockSEC:0000950170-24-068653:0
34,696 sharesCommon StockSEC:0000950170-24-038660:0
10,105 sharesCommon StockSEC:0001209191-23-034382:0
10,000 shares@ US$25.510.0058% mcap100.0% of flowCommon StockSEC:0001209191-22-031849:0
Canonical exit: 21 Aug 2022 (T+90)
9,470 shares0Common StockSEC:0001209191-22-028844:0
4,762 shares0Common StockSEC:0001209191-21-032681:0
14 of 14 declarations
