Jeremy Grantham's Waters Corporation (WAT) position

Not anymore: Jeremy Grantham fully exited WAT in Q1 2026. The position peaked at $3.7M in Q3 2021.

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Value at exit

$1.8M

Shares at exit

Est. average buy price (i)

$301.72

Quarter-end price

$379.83

Estimated trade prices

Average price in quarters with purchases: $363.30

WAT price vs Grantham's position

1Y 3Y 5Y MAX

Dates

Average closing price · filing quarter: $301.72
Price range · filing quarter: $277.72 – $357.04

Every quarterly change

Quarter	Action	Shares change	Est. value change	Δ Own	Shares held	Filing date
Q1 2026	Exited	−5K	−$1.6M	−100.0%	0	May 14, 2026
Q4 2025	Unchanged	–	–	–	5K	Feb 17, 2026
Q3 2025	New	+5K	+$1.4M	–	5K	Nov 13, 2025
Q3 2021	New	+10K	+$4.1M	–	10K	Nov 12, 2021

Data through Q1 2026 · filed May 14, 2026

4 grouped rows from 4 quarters

Who else owns WAT

T. Rowe Price Investment Management, Inc.

owns 7.2% of shares outstanding

Est. $1.8B · Shares: 4.7M

Massachusetts Financial Services Co

owns 7.1% of shares outstanding

Est. $1.8B · Shares: 4.6M

Fundsmith LLP

View investor →

owns 4.9% of shares outstanding

Est. $1.2B · Shares: 3.2M

Invesco Ltd.

View investor →

owns 3.3% of shares outstanding

Est. $823M · Shares: 2.2M

See all owners of WAT →

More Grantham positions

Lam Research Corporation(LRCX)

$1.4B

3.8% of portfolio

Common questions

Does Jeremy Grantham own WAT?

Not currently. Jeremy Grantham fully exited WAT in Q1 2026, and the complete history is above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Jeremy Grantham buy WAT?

Jeremy Grantham first disclosed a WAT position in Q3 2021; every quarterly buy and sell since is in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Jeremy Grantham sell WAT?

Yes. Jeremy Grantham reduced and then fully exited WAT by Q1 2026; the reductions are in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of WAT does Jeremy Grantham own?

None as of the latest filing: Jeremy Grantham has exited WAT. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Jeremy Grantham pay for WAT?

Jeremy Grantham's estimated average buy price for WAT is $301.72, from quarter-average prices weighted by the shares added each quarter. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.