Across its top 20 institutional holders, AVTR's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 14/100, avg. turnover score 29/100).

Quarterly Activity

Recent Activity

+$3.7B

Total Buy Value

$2.8B

Total Sell Value

New buy82

Trim126

Add167

Sold out74

249

Net Buyers

200

Net Sellers

Smart Money Convergence

AVTR does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.

13F data as of 2026-06-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.

Insider Trading (Form 4)

Form 144 Pre-Sale Notices

No Form 144 planned sale filings in the last 90 days

Beneficial Ownership (13D/13G)

No Schedule 13D/13G filings for this ticker

Material Events (8-K)

Filings (14d)

Data as of 2026-07-17

2026-07-17

Avantor, Inc., through its wholly owned subsidiary Avantor Funding, Inc., entered into an amendment to its credit agreement on July 14, 2026, adding €374.2 million in new euro-denominated term loans. The new loans bear interest at EURIBOR plus 2.00%, replacing existing euro loans with a spread of 2.50%. The new loans mature on October 9, 2032.

View Full Filing (SEC EDGAR)

View all Form 8-K filings

CUSIP

05352A100

FAQ

Who are the top institutional investors holding AVANTOR INC (AVTR)?

Major stakeholders currently include Dodge & Cox ($938.0M), BlackRock, Inc. ($515.1M), Vanguard Portfolio Management LLC ($245.2M). Based on the latest 13F filings, there are a total of 428 tracked investment funds and institutions maintaining positions in AVTR.

What is the overall institutional sentiment toward AVTR recently?

Institutional sentiment appears Bearish (Net Selling). During the most recent reporting quarter, the stock experienced a net outflow of $2.6B, driven by 249 managers accumulating shares while 200 reduced their exposure.

Which institutions have been selling or reducing their AVTR positions?

In the latest period, 126 funds trimmed their holdings, and 74 managers completely exited their positions. The aggregate reported sell value was $2.8B.

Are there any notable investors adding AVTR to their portfolios?

Yes, buying activity remains notable. 82 institutions opened new positions in {ticker}, and 167 existing holders added to their shares. The total reported buy value for the quarter amounted to $3.7B.