Ostrum Asset Management’s Waters Corp WAT Stock Holding History

Ostrum Asset Management’s Portfolio WAT Stock Details WAT Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$1.28M	Buy	4,285 +3,826	+834%	+$1.31M	0.07%	194
2025 Q4	$174K	Sell	459 -154	-25%	-$56.7K	0.01%	474
2025 Q3	$184K	Sell	613 -20	-3%	-$6.04K	0.01%	496
2025 Q2	$221K	Sell	633 -18	-3%	-$6.19K	0.01%	483
2025 Q1	$240K	Sell	651 -17	-3%	-$6.58K	0.01%	484
2024 Q4	$248K	Sell	668 -1,422	-68%	-$520K	0.02%	478
2024 Q3	$752K	Buy	2,090 +25	+1%	+$8.14K	0.06%	352
2024 Q2	$599K	Sell	2,065 -1,729	-46%	-$552K	0.05%	368
2024 Q1	$1.31M	Hold	3,794	–	–	0.1%	295
2023 Q4	$1.25M	Sell	3,794 -1,564	-29%	-$432K	0.11%	270
2023 Q3	$1.47M	Buy	5,358 +2,449	+84%	+$677K	0.14%	232
2023 Q2	$775K	Buy	2,909 +1	+0%	+$278	0.07%	370
2023 Q1	$900K	Buy	+2,908	New	+$941K	0.08%	332

Other funds holding WAT

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Massachusetts Financial Services Boston, Massachusetts $298B AUM 21.96% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Fundsmith LLP London, United Kingdom $12.8B AUM 6.9% 1-Year Est. Return

AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Ostrum Asset Management's WAT Position: Q1 2026 in Review

Ostrum Asset Management increased its Waters Corp (WAT) stake by 834% in Q1 2026, buying an estimated $1.31M and bringing the position to 4,285 shares worth $1.28M. The position accounts for 0.07% of the portfolio, ranked #194.

Ostrum Asset Management first reported a position in WAT in Q1 2023 and has held it in 13 quarters since. The position peaked at $1.47M in Q3 2023. 1,170 funds tracked by Wall St. Rank hold WAT as of Q1 2026.

Ostrum Asset Management held 4,285 shares of Waters Corp worth $1.28M as of Q1 2026.
Ostrum Asset Management bought 3,826 Waters Corp shares in Q1 2026, an estimated $1.31M.
Waters Corp made up 0.07% of Ostrum Asset Management's portfolio in Q1 2026, its #194 holding.
Ostrum Asset Management first reported a position in Waters Corp in Q1 2023 and has held it in 13 quarters since.
Ostrum Asset Management's Waters Corp position peaked at $1.47M in Q3 2023.
1,170 funds tracked by Wall St. Rank held Waters Corp as of Q1 2026.

Based on Ostrum Asset Management's 13F filing for Q1 2026, filed 14 May 2026.