BAMCO Inc
WMS icon

BAMCO Inc’s Advanced Drainage Systems WMS Stock Holding History

BAMCO Inc’s Portfolio WMS Stock Details WMS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$107M Buy
680,431
+389,279
+134% +$55.6M 0.16% 62
2026
Q1 		$39.9M Sell
291,152
-3,526
-1% -$546K 0.12% 140
2025
Q4 		$42.7M Hold
294,678
– – 0.12% 147
2025
Q3 		$40.9M Buy
294,678
+75
+0% +$9.85K 0.11% 161
2025
Q2 		$33.8M Sell
294,603
-13,252
-4% -$1.48M 0.09% 169
2025
Q1 		$33.4M Buy
+307,855
New +$35.9M 0.1% 159
2020
Q2 		– Sell
-500,000
Closed -$14.7M – 361
2020
Q1 		$14.7M Sell
500,000
-325,000
-39% -$13.1M 0.07% 169
2019
Q4 		$32M Hold
825,000
– – 0.12% 135
2019
Q3 		$26.6M Buy
+825,000
New +$26.8M 0.11% 145

Other funds holding WMS

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return
UBS AM
UBS AM Chicago, Illinois $550B AUM 43.33% 1-Year Est. Return
Impax Asset Management Group
Impax Asset Management Group London, United Kingdom $15.4B AUM 26.43% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $110B AUM 4.8% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

BAMCO Inc's WMS Position: Q2 2026 in Review

BAMCO Inc increased its Advanced Drainage Systems (WMS) stake by 134% in Q2 2026, buying an estimated $55.6M and bringing the position to 680,431 shares worth $107M. The position accounts for 0.16% of the portfolio, ranked #62.

BAMCO Inc first reported a position in WMS in Q3 2019 and has held it in 9 quarters since. 551 funds tracked by Wall St. Rank hold WMS as of Q2 2026.

  • BAMCO Inc held 680,431 shares of Advanced Drainage Systems worth $107M as of Q2 2026.
  • BAMCO Inc bought 389,279 Advanced Drainage Systems shares in Q2 2026, an estimated $55.6M.
  • Advanced Drainage Systems made up 0.16% of BAMCO Inc's portfolio in Q2 2026, its #62 holding.
  • BAMCO Inc first reported a position in Advanced Drainage Systems in Q3 2019 and has held it in 9 quarters since.
  • 551 funds tracked by Wall St. Rank held Advanced Drainage Systems as of Q2 2026.

Based on BAMCO Inc's 13F filing for Q2 2026, filed 14 Aug 2026.