Ticker · CUSIP 00790R104

WMS

ADVANCED DRAIN SYS INC DEL

Industrials·Building Products & Equipment

···Share

Holders (tracked)

Combined shares

6,344,731

Combined value

$918.91M

Last close

$153.37

Quarter

2025Q4

Price is +5.9% vs the avg quarter-end implied price across tracked holders.

Price · 1Y$153.37+49.51 (+47.67%)H $175.20 · L $101.02 · Avg Vol 759K

Congress buyCongress sell

Tracked holders · last 8 quarters

+3 vs previous quarter over the last 8.

SEC event timeline

26 events

Paul Tudor Jones (Tudor Investment) opened position2026-02-17
+22,839 shares · 2025Q4
Position
Ken Griffin (Citadel Advisors) added2026-02-17
+241,493 shares · 2025Q4
Position
AQR Capital Management added2026-02-17
+33,875 shares · 2025Q4
Position
D.E. Shaw & Co. trimmed2026-02-17
−307 shares · 2025Q4
Position
Jeremy Grantham (GMO) trimmed2026-02-17
−13,831 shares · 2025Q4
Position
Izzy Englander (Millennium Mgmt) trimmed2026-02-17
−141,274 shares · 2025Q4
Position
Wellington Management added2026-02-17
+75,250 shares · 2025Q4
Position
T. Rowe Price added2026-02-17
+7,365 shares · 2025Q4
Position
Ray Dalio (Bridgewater Associates) opened position2026-02-13
+60,895 shares · 2025Q4
Position
Norges Bank (Norway SWF) opened position2026-02-10
+1,081,179 shares · 2025Q4
Position
Ken Fisher (Fisher Asset Mgmt) exited2026-02-09
−40,607 shares · 2025Q4
Position
First Eagle Investment Management added2026-02-04
+1,226 shares · 2025Q4
Position
Baillie Gifford & Co trimmed2026-01-23
−151,057 shares · 2025Q4
Position
AQR Capital Management added2025-11-14
+8,215 shares · 2025Q3
Position
Izzy Englander (Millennium Mgmt) added2025-11-14
+41,936 shares · 2025Q3
Position
D.E. Shaw & Co. trimmed2025-11-14
−6,259 shares · 2025Q3
Position
T. Rowe Price added2025-11-14
+4,051 shares · 2025Q3
Position
Wellington Management added2025-11-14
+832,929 shares · 2025Q3
Position
Ron Baron (Baron Capital / BAMCO) added2025-11-14
+75 shares · 2025Q3
Position
Jeremy Grantham (GMO) trimmed2025-11-13
−53,914 shares · 2025Q3
Position
Norges Bank (Norway SWF) exited2025-11-13
−792,171 shares · 2025Q3
Position
Renaissance Technologies exited2025-11-13
−9,837 shares · 2025Q3
Position
Ken Fisher (Fisher Asset Mgmt) trimmed2025-11-12
−44 shares · 2025Q3
Position
Norges Bank (Norway SWF) added2025-11-12
+40,042 shares · 2024Q3
Position
First Eagle Investment Management opened position2025-11-12
+4,100 shares · 2025Q3
Position
Baillie Gifford & Co trimmed2025-10-31
−77,439 shares · 2025Q3
Position

Insider activity

No insider transactions in the last 30 days.

View full insider history for WMS →

Follow-the-investor returns

If you'd copied each holder of WMS…

Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.

Investor	First in	Cost basis	Return	Position value today
Ron Baron (Baron Capital / BAMCO)	2019Q3	$32.30	+374.9%	$45.2M
Baillie Gifford & Co	2022Q4	$92.69	+65.5%	$344.2M
T. Rowe Price	2016Q3	$112.57	+36.2%	$10.1M
Izzy Englander (Millennium Mgmt)	2016Q2	$118.16	+29.8%	$27.2M
Wellington Management	2016Q1	$127.64	+20.2%	$193.9M
Jeremy Grantham (GMO)	2023Q1	$138.08	+11.1%	$30.9M
First Eagle Investment Management	2025Q3	$140.11	+9.5%	$817K
Ray Dalio (Bridgewater Associates)	2023Q3	$141.82	+8.1%	$9.3M
AQR Capital Management	2016Q1	$142.67	+7.5%	$7.0M
Paul Tudor Jones (Tudor Investment)	2016Q4	$142.93	+7.3%	$3.5M
D.E. Shaw & Co.	2016Q2	$144.34	+6.3%	$1.5M
D.E. Shaw & Co.	2016Q2	$144.34	+6.3%	$1.5M
Ken Griffin (Citadel Advisors)	2016Q3	$144.80	+5.9%	$429K
Ken Griffin (Citadel Advisors)	2016Q3	$144.80	+5.9%	$429K
Ken Griffin (Citadel Advisors)	2016Q3	$144.80	+5.9%	$429K
Norges Bank (Norway SWF)	2016Q1	$607.16	-74.7%	$165.8M

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.

New positions3

Norges Bank (Norway SWF)
+1,081,179
$156.6M
Ray Dalio (Bridgewater Associates)
+60,895
$8.8M
Paul Tudor Jones (Tudor Investment)
+22,839
$3.3M

Added to5

Ken Griffin (Citadel Advisors)
+241,493
$35.0M
Wellington Management
+75,250
$10.9M
AQR Capital Management
+33,875
$4.9M
First Eagle Investment Management
+1,226
$178K
T. Rowe Price
+7,365
$1K

Trimmed4

Baillie Gifford & Co
−151,057
$21.9M
Izzy Englander (Millennium Mgmt)
−141,274
$20.5M
Jeremy Grantham (GMO)
−13,831
$2.0M
D.E. Shaw & Co.
−307
$44K

Exited1

Ken Fisher (Fisher Asset Mgmt)
−40,607
$5.6M

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.

Quarter	Holders	Shares	Combined value	Δ holders
2022Q1	11	4,731,668	$67.82B	—
2022Q2	11	4,818,952	$51.42B	—
2022Q3	14	6,181,734	$768.8M	+3
2022Q4	14	7,029,656	$576.2M	—
2023Q1	13	10,900,506	$917.9M	-1
2023Q2	13	11,450,601	$1.30B	—
2023Q3	13	12,456,237	$1.42B	—
2023Q4	13	11,461,643	$1.61B	—
2024Q1	16	12,434,447	$2.14B	+3
2024Q2	16	13,190,759	$2.12B	—
2024Q3	14	5,176,920	$813.6M	-2
2024Q4	15	4,477,020	$517.5M	+1
2025Q1	12	3,898,661	$423.6M	-3
2025Q2	15	4,715,282	$541.6M	+3
2025Q3	13	5,175,885	$717.9M	-2
2025Q4	16	6,344,731	$918.9M	+3

Congress members trading this stock

Date	Member	Type	Amount range	Filing
2025-07-16	Lisa McClain	Sell	$1K – $15K	PDF ↗
2025-06-17	Lisa McClain	Buy	$1K – $15K	PDF ↗
2025-01-13	Rob Bresnahan	Sell	$1K – $15K	PDF ↗

Who owns WMS

16 super-investors · 2025Q4

Tracked stake

6.34M

Combined value

$919M

% of shares outstanding

—

shares-out unknown

Quarter action mix

New3Added7Trim5Held1

#	Manager	Shares	Value	% of book	Last action
1	Baillie Gifford & Co	2.24M	$325M	0.3%	Trim−151.1K
2	Wellington Management	1.26M	$183M	0.0%	Added+75.3K
3	Norges Bank Norway SWF	1.08M	$157M	0.0%	New+1.08M
4	Ken Griffin Citadel Advisors	862.7K	$125M	0.0%	Added+241.5K
5	Ron Baron Baron Capital / BAMCO	294.7K	$43M	0.1%	Held
6	Jeremy Grantham GMO	201.6K	$29M	0.1%	Trim−13.8K
7	Izzy Englander Millennium Mgmt	177.3K	$26M	0.0%	Trim−141.3K
8	T. Rowe Price	66.0K	$10M	0.0%	Added+7.4K
9	Ray Dalio Bridgewater Associates	60.9K	$9M	0.0%	New+60.9K
10	AQR Capital Management	45.4K	$7M	0.0%	Added+33.9K
11	Paul Tudor Jones Tudor Investment	22.8K	$3M	0.0%	New+22.8K
12	D.E. Shaw & Co.	10.0K	$1M	0.0%	Trim−307
13	First Eagle Investment Management	5.3K	$771K	0.0%	Added+1.2K
14	Ken Griffin Citadel Advisors	4.3K	$623K	0.0%	Added+241.5K
15	Ken Griffin Citadel Advisors	2.8K	$406K	0.0%	Added+241.5K
16	D.E. Shaw & Co.	1.5K	$221K	0.0%	Trim−307

Recent moves

20 transactions

TRIMD.E. Shaw & Co.
−307 · 2025Q4
ADDWellington Management
+75,250 · 2025Q4
ADDAQR Capital Management
+33,875 · 2025Q4
NEWPaul Tudor Jones (Tudor Investment)
+22,839 · 2025Q4
TRIMIzzy Englander (Millennium Mgmt)
−141,274 · 2025Q4
TRIMJeremy Grantham (GMO)
−13,831 · 2025Q4
ADDKen Griffin (Citadel Advisors)
+241,493 · 2025Q4
ADDT. Rowe Price
+7,365 · 2025Q4
NEWRay Dalio (Bridgewater Associates)
+60,895 · 2025Q4
NEWNorges Bank (Norway SWF)
+1,081,179 · 2025Q4
SOLDKen Fisher (Fisher Asset Mgmt)
−40,607 · 2025Q4
ADDFirst Eagle Investment Management
+1,226 · 2025Q4
TRIMBaillie Gifford & Co
−151,057 · 2025Q4
ADDT. Rowe Price
+4,051 · 2025Q3
ADDWellington Management
+832,929 · 2025Q3
ADDIzzy Englander (Millennium Mgmt)
+41,936 · 2025Q3
ADDRon Baron (Baron Capital / BAMCO)
+75 · 2025Q3
TRIMD.E. Shaw & Co.
−6,259 · 2025Q3
ADDAQR Capital Management
+8,215 · 2025Q3
SOLDRenaissance Technologies
−9,837 · 2025Q3

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