William Blair Investment Management, LLC Casella Waste Systems Inc Transaction History

William Blair Investment Management, LLC

  • $35.8 Billion
  • Q3 2025

A detailed history of William Blair Investment Management, LLC transactions in Casella Waste Systems Inc stock. As of the latest transaction made, William Blair Investment Management, LLC holds 1,809,867 shares of CWST stock, worth $161 Million. This represents 0.48% of its overall portfolio holdings.

Number of Shares
1,809,867
Previous 1,800,155 0.54%
Holding current value
$161 Million
Previous $208 Million 17.32%
% of portfolio
0.48%
Previous 0.6%

Shares

29 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q3 2025

Nov 12, 2025
BUY
$86.69 - $114.82 $841,933 - $1.12 Million
9,712 Added 0.54%
1,809,867 $172 Million
Q2 2025

Jul 29, 2025
SELL
$103.78 - $120.37 $43.2 Million - $50.1 Million
-416,110 Reduced 18.78%
1,800,155 $208 Million
Q1 2025

May 09, 2025
SELL
$104.2 - $115.86 $44.2 Million - $49.2 Million
-424,233 Reduced 16.07%
2,216,265 $247 Million
Q4 2024

Feb 10, 2025
SELL
$97.5 - $113.93 $1.13 Million - $1.32 Million
-11,614 Reduced 0.44%
2,640,498 $279 Million
Q3 2024

Nov 08, 2024
SELL
$96.59 - $108.33 $1.41 Million - $1.59 Million
-14,637 Reduced 0.55%
2,652,112 $264 Million
Q2 2024

Aug 08, 2024
SELL
$90.06 - $100.59 $272,071 - $303,882
-3,021 Reduced 0.11%
2,666,749 $265 Million
Q1 2024

May 08, 2024
SELL
$81.03 - $98.87 $18.7 Million - $22.8 Million
-230,340 Reduced 7.94%
2,669,770 $264 Million
Q4 2023

Feb 09, 2024
SELL
$73.32 - $88.71 $10.8 Million - $13.1 Million
-147,155 Reduced 4.83%
2,900,110 $248 Million
Q3 2023

Nov 09, 2023
BUY
$76.3 - $88.37 $4.2 Million - $4.87 Million
55,066 Added 1.84%
3,047,265 $233 Million
Q2 2023

Aug 10, 2023
BUY
$81.18 - $95.51 $4.41 Million - $5.19 Million
54,316 Added 1.85%
2,992,199 $271 Million
Q1 2023

May 12, 2023
BUY
$75.41 - $83.03 $37.6 Million - $41.4 Million
498,318 Added 20.43%
2,937,883 $243 Million
Q4 2022

Feb 09, 2023
SELL
$71.61 - $86.63 $3.87 Million - $4.68 Million
-54,050 Reduced 2.17%
2,439,565 $193 Million
Q3 2022

Nov 09, 2022
BUY
$72.14 - $86.83 $28.9 Million - $34.8 Million
401,079 Added 19.17%
2,493,615 $190 Million
Q2 2022

Aug 10, 2022
BUY
$65.62 - $91.15 $1.22 Million - $1.69 Million
18,519 Added 0.89%
2,092,536 $152 Million
Q1 2022

May 11, 2022
BUY
$70.24 - $91.24 $102 Million - $132 Million
1,450,370 Added 232.56%
2,074,017 $182 Million
Q4 2021

Feb 14, 2022
SELL
$76.89 - $89.55 $12.5 Million - $14.6 Million
-162,781 Reduced 20.7%
623,647 $53.3 Million
Q3 2021

Nov 10, 2021
BUY
$62.79 - $79.66 $543,761 - $689,855
8,660 Added 1.11%
786,428 $59.7 Million
Q2 2021

Aug 12, 2021
SELL
$62.93 - $69.09 $1.14 Million - $1.25 Million
-18,039 Reduced 2.27%
777,768 $49.3 Million
Q1 2021

May 13, 2021
BUY
$54.15 - $66.19 $3.51 Million - $4.29 Million
64,819 Added 8.87%
795,807 $50.6 Million
Q4 2020

Feb 09, 2021
BUY
$53.99 - $62.82 $5.45 Million - $6.34 Million
100,888 Added 16.01%
730,988 $45.3 Million
Q3 2020

Nov 06, 2020
BUY
$50.37 - $58.5 $5.07 Million - $5.89 Million
100,610 Added 19.0%
630,100 $35.2 Million
Q2 2020

Aug 12, 2020
SELL
$35.85 - $53.58 $2.79 Million - $4.17 Million
-77,758 Reduced 12.8%
529,490 $27.6 Million
Q1 2020

May 08, 2020
BUY
$36.12 - $55.12 $2.42 Million - $3.7 Million
67,038 Added 12.41%
607,248 $23.7 Million
Q4 2019

Feb 12, 2020
BUY
$41.03 - $47.53 $5.19 Million - $6.02 Million
126,594 Added 30.61%
540,210 $24.9 Million
Q3 2019

Nov 12, 2019
SELL
$39.08 - $46.36 $6.68 Million - $7.92 Million
-170,845 Reduced 29.23%
413,616 $17.8 Million
Q2 2019

Aug 09, 2019
BUY
$32.78 - $41.11 $102,175 - $128,139
3,117 Added 0.54%
584,461 $23.2 Million
Q1 2019

May 10, 2019
BUY
$27.38 - $36.74 $790,789 - $1.06 Million
28,882 Added 5.23%
581,344 $20.7 Million
Q4 2018

Feb 13, 2019
BUY
$24.75 - $33.74 $492,500 - $671,392
19,899 Added 3.74%
552,462 $15.7 Million
Q3 2018

Nov 13, 2018
BUY
$25.38 - $33.5 $13.5 Million - $17.8 Million
532,563 New
532,563 $16.5 Million

Others Institutions Holding CWST

# of Institutions
421
Shares Held
66.8M
Call Options Held
19.4K
Put Options Held
4K
View Full List

About CASELLA WASTE SYSTEMS INC

CWST Quotes by TradingView
  • Ticker CWST
  • Exchange NASDAQ
  • Sector Industrials
  • Industry Waste Management
  • Shares Outstandng 50,689,800
  • Market Cap $4.52B
  • Description
  • Casella Waste Systems, Inc., together with its subsidiaries, operates as a vertically integrated solid waste services company in the northeastern United States. It offers resource management services primarily in the areas of solid waste collection and disposal, transfer, recycling, and organics services to residential, commercial, municipal, in...
More about CWST
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