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AVTR · Avantor, Inc.
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AVTR Avantor (AVTR) Insider Trading, Ownership & Congress Trades

Medical Devices · Laboratory analytical instruments · CIK 0001722482
SEC filings
House members buying, 1 year
0
STOCK Act, US House only, disclosed up to 45 days after the trade
Funds added, last quarter
290
13F, latest reported quarter

What the filings say about AVTR

Insiders, 180 days
+$286.7K net bought
2 buyers
Congress, 1 year
No trades
Last one: sale, 2025-08-13

Avantor insider trades (Form 4)

Form 4 buys and sells (codes P and S). Grants, option exercises and conversions excluded.

Over the last 180 days, Avantor, Inc. insiders bought a net $286.7K of stock across 64 Form 4 purchases and sales, with 2 insiders buying. Source: SEC Form 4 filings, as of 2026-10-28.

Insider
Filed
Shares
Value
Since filing
BUY
2026-05-11 SECtraded 2026-05-08
10,000
$83.2K
+109.7%
Context
  • 1 earlier Form 4 trade (code P or S) here by this insider (1 buy), the last on Feb 19, 2026.
  • The trade is 16.7% of the 60,000 shares held after it.
  • 1 other insider bought within 30 days.
  • 290 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director LUCIER GREGORY T bought about $83.2K of AVTR on May 8, 2026; 1 other insider bought within 30 days and 290 funds added in the latest 13F quarter.
BUY
2026-05-05 SECtraded 2026-05-01
25,000
$203.5K
+103.2%
Context
  • First Form 4 purchase or sale (code P or S) here by this insider on our record.
  • The trade is 100.0% of the 25,000 shares held after it.
  • 1 other insider bought within 30 days.
  • 290 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director Dingemans Simon bought about $203.5K of AVTR on May 1, 2026; 1 other insider bought within 30 days and 290 funds added in the latest 13F quarter.
BUY
2026-03-11 SECtraded 2026-03-10
125,000
$1.0M
+116.8%
Context
  • 1 earlier Form 4 trade (code P or S) here by this insider (1 buy), the last on Dec 5, 2025.
  • The trade is 26.3% of the 475,000 shares held after it.
  • 2 other insiders bought within 30 days.
  • 290 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director MEHRA SANJEEV K bought about $1.0M of AVTR on Mar 10, 2026; 2 other insiders bought within 30 days and 290 funds added in the latest 13F quarter.
BUY
2026-02-23 SECtraded 2026-02-19
50,000
$458.0K
+88.0%
Context
  • First Form 4 purchase or sale (code P or S) here by this insider on our record.
  • The trade is 100.0% of the 50,000 shares held after it.
  • 2 other insiders bought within 30 days.
  • 290 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director LUCIER GREGORY T bought about $458.0K of AVTR on Feb 19, 2026; 2 other insiders bought within 30 days and 290 funds added in the latest 13F quarter.
BUY
2026-02-12 SEC
100,000
$940.0K
+86.2%
Context
  • 6 earlier Form 4 trades (code P or S) here by this insider (6 buys), the last on Oct 30, 2025.
  • -0.5% median (-0.6% mean) 90-day return after 6 previous buys.
  • The trade is 25.0% of the 400,000 shares held after it.
  • 2 other insiders bought within 30 days.
  • 290 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director SUMME GREGORY L bought about $940.0K of AVTR on Feb 12, 2026; 2 other insiders bought within 30 days and 290 funds added in the latest 13F quarter.
64 transactions on record
Since filing: total return from the first close after the filing to the latest close, dividend-adjusted. Not a forecast.
Context lines are counts over the filings above and returns from our own price history, never a price level. Not investment advice.
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Seven facts, ranked against the sector · Rank is not a forecast
Insiders
net +$286.7K over 180 days
more than 82% of Medical Devices
Congress
no House purchase disclosed in the last 12 months
Funds
290 funds bought in last quarter
more than 88% of Medical Devices
Revenue
-3.4% year over year
below 81% of Medical Devices
Margin
-8.1% net margin
more than 59% of Medical Devices
Buybacks
$75.1M repurchased, FY to 2025-12-31
more than 54% of Medical Devices
Short interest
6.0% of the float short (float per yahoo 2026-10-26) · 4.2 days to cover · settled 2026-09-30
more than 68% of Medical Devices
What changed in the last 30 days
Nothing new filed in the last 30 days

Watch AVTR

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The year, with the filings on it
Total return over 12 months. Each marker is a filing; hover or tap one for the detail.
+10.8%12M
-52%-31%-9%+12%2025-102025-122026-022026-042026-062026-082026-10 2025-12-05 · MEHRA SANJEEV K bought $3.9M2025-10-30 · SUMME GREGORY L bought $1.1M2026-03-10 · MEHRA SANJEEV K bought $1.0M2025-11-17 · Ligner Emmanuel bought $993.1K2026-02-12 · SUMME GREGORY L bought $940.0K2026-02-19 · LUCIER GREGORY T bought $458.0K2026-05-01 · Dingemans Simon bought $203.5K2026-05-08 · LUCIER GREGORY T bought $83.2K
Insider buy
Indexed to 100, dividend-adjusted, not a price chart. When a name files heavily, the largest trades are drawn first.

Who owns AVTR: institutional holders (13F)

13F holdings, latest reported quarter
120,020,974 sh
$1.2B
70,281,231 sh
$695.8M
$243.9M

Congress trades in AVTR

STOCK Act disclosures, US House only, filed up to 45 days after the trade
Sold 2025-08-13 · disclosed 30 days later
$1,001 - $15,000
Sold 2025-08-12 · disclosed 31 days later
$1,001 - $15,000
Sold 2025-07-23 · disclosed 22 days later
$1,001 - $15,000
Sold 2025-06-17 · disclosed 57 days later
$1,001 - $15,000
Bought 2025-06-11 · disclosed 63 days later
$1,001 - $15,000

Activist and 5% holders (13D/13G)

No 5%+ ownership filings
Nobody has filed for crossing 5%. That is a fact, not missing data.

AVTR planned insider sales (Form 144)

No planned-sale notices
No insider has filed to sell. Watch this after a run-up.

AVTR mutual fund holders (N-PORT)

Funds ranked by the share of their own portfolio in this stock (N-PORT).
Clarkston Partners Fund
$17.5M position · as of 2026-06-30
6.0%
Clarkston Fund
$1.7M position · as of 2026-06-30
5.7%
Clarkston Founders Fund
$3.8M position · as of 2026-06-30
5.3%
Longleaf Partners Fund
$43.7M position · as of 2026-06-30
4.1%
LoCorr Dynamic Opportunity Fund
$910.9K position · as of 2026-06-30
2.9%
Harbor Long-Short Equity ETF
$385.3K position · as of 2026-07-31
2.5%
SEC N-PORT, monthly, about 60 days late · funds ≥ $10M · % is the share of the fund's own portfolio
Executive pay vs shareholder return
CEO pay, headline and as actually paid, against the company's return and its chosen peers' (DEF 14A).
FY
CEO total
Actually paid
Other execs, avg
TSR
Peer TSR
2020
$11.3M
$34.0M
$4.6M
+55%
+13%
Tagged by the company under SEC Item 402(v). Returns are cumulative from the start of the disclosure period. Green where the company beat its own peer group.
Live price
Daily candles from TradingView, under their licence. No filings marked.
Why this name is on the desk
Insiders are net buyers of their own stock.
The record shows a net $286.7K bought by insiders over 180 days, 290 funds added last quarter. Each figure is a federal filing, dated the day it went public.
Same sector, ranked by filing activity
Sector by SEC SIC code

AVTR financials

Revenue growth
-3.4%
XBRL, annual
Net margin
-8.1%
Ratios from the company's XBRL filings, latest filings
Revenue, TTM
$6.6B
four quarters, 2025-04-01 to 2026-03-31
Net margin, TTM
-8.4%
net income over revenue, 2025-04-01 to 2026-03-31
Free cash flow, TTM
$438.9M
operating cash flow minus capex, 2025-04-01 to 2026-03-31
Debt to equity
0.68x
long-term 2026-03-31 plus current 2026-03-31; equity 2026-03-31
Cash flow to debt
0.15x
TTM operating cash flow over long-term 2026-03-31 plus current 2026-03-31
Return on equity
-9.4%
TTM net income over average of 2025-03-31 and 2026-03-31
Return on assets
-4.6%
TTM net income over average of 2025-03-31 and 2026-03-31
Return on invested capital
n/a
pre-tax loss, no effective tax rate to apply
Return on capital employed
-2.9%
operating income (EBIT proxy) over average of 2025-03-31 and 2026-03-31 minus current liabilities
P/E, trailing
n/a
trailing loss, a multiple of a loss is not meaningful
Enterprise value
$15.2B
market value at close 2026-10-27 on 2026-04-24 shares, plus long-term 2026-03-31 plus current 2026-03-31, minus cash 2026-03-31
FCF yield
+3.8%
TTM free cash flow over market value at close 2026-10-27
PEG, trailing
n/a
trailing loss, a multiple of a loss is not meaningful
Price as of 2026-10-27. Hover or tap a tile for its yearly and quarterly history.
Method
TTM is four consecutive fiscal quarters; Q4 is the year minus nine months when not filed. Returns use the average of opening and closing balances. EBIT is approximated by operating income. PEG uses trailing EPS growth.
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
2025-122024-122023-122022-12
Revenue$6.6B$6.8B$7.0B$7.5B
Gross profit$2.1B$2.3B$2.4B$2.6B
Operating income-$246.2M$1.1B$696.4M$1.1B
Net income-$530.2M$711.5M$321.1M$686.5M
EPS (diluted)-0.781.040.471.01
Operating cash flow$623.8M$840.8M$870.0M$843.6M
Cash$365.4M$261.9M$262.9M$372.9M
Long-term debt$3.9B$3.2B$5.3B$5.9B
Buybacks$75.1M$0$0n/a
SEC XBRL, fiscal years, as known on 2026-10-28

AVTR Stock Sonar score 6/7 axes

Find similar shapesCompare

AVTR ranks highest on institutional and government (88th percentile) and insider conviction (78th), and lowest on growth (19th), among Medical Devices peers.

ProfitHealthGrowthInsidersInstitutionsRisk
Profitability
62
Inputs
  • Return on equity-9.4% · 58 pct, sector of 183
  • Return on assets-4.6% · 64 pct, sector of 214
  • Return on invested capitalpre-tax loss, no effective tax rate to apply
  • Return on capital employed-2.9% · 64 pct, sector of 188
Financial health
48
Inputs
  • Debt to equity0.68x · 30 pct, sector of 159
  • Cash flow to debt0.15x · 66 pct, sector of 150
Growth
19
Inputs
  • Revenue growth, YoY-3.4% · 19 pct, sector of 219
  • Backlog growth, YoYno backlog line filed, or no year-earlier backlog
Insider conviction
78
Inputs
  • Net Form 4 buying (codes P and S), 180d$287K · 81 pct, sector of 140
  • Insider buyers, 180d2 · 74 pct, sector of 142
Institutional and government
88
Inputs
  • Funds adding, latest quarter290 · 88 pct, sector of 191
  • Congress net buyers, 365dno Congress trades in 365 days
  • Federal contracts, 180dno federal contracts in 180 days
  • Lobbying spend, 4 quartersno lobbying filings in the last four quarters
Risk and compliance
58
Inputs
  • Short interest, % of float+6.0% · 43 pct, sector of 240
  • Recalls per $1B revenue, 3y0.00 per $1B · 100 pct, sector of 116
  • EPA cases per $1B revenue, 5ynot measured for this sector, almost no peer has an event
  • New text in Risk Factors, latest 10-K+14.7% · 30 pct, sector of 198
1 not measured: US patents
  • US patents needs 1 of 2 inputs, 0 present: patent data not loaded yet

6 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored

AVTR filings, in plain words

Are Avantor insiders buying or selling AVTR?

In the 180 days to 2026-10-28, Avantor insiders were net buyers, a net $286.7K across purchases and sales reported on Form 4, by 2 buyers.

Have members of Congress traded AVTR?

Yes, but not in the year to 2026-10-28; the latest on record is a sale by Gilbert Cisneros dated 2025-08-13.

Read the full summary

In the 180 days to 2026-10-28, Avantor insiders were net buyers of AVTR, a net $286.7K across purchases and sales reported on Form 4 by 2 buyers. Members of Congress have disclosed trades in AVTR, none in the last year; the latest on record is a sale by Gilbert Cisneros dated 2025-08-13. Each figure is counted from SEC and House filings as of 2026-10-28, dated the day the filing was made public.

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