Avantor, Inc. (AVTR)

Latest Insider Confidence Score

2026Q1

55.9
Bullish

Company insider confidence (by quarter)

2019Q2 2026Q1

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Connolly Thomas Director 72,621,997.3 May 7, 2021
Goldman Sachs Group Inc 10% Owner 72,620,082.41 May 7, 2021
Broad Street Principal Investments, L.L.C. 10% Owner 72,620,082.41 May 7, 2021
Goldman Sachs & Co. Llc 10% Owner 72,620,082.41 May 7, 2021
StoneBridge 2017 Offshore, L.P. 10% Owner 72,620,082.41 May 7, 2021

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Feb 23, 2026 Feb 25, 2026 Sokenu Claudius EVP, Chief Legal & Compliance Sell 48.8 -2,376 -0.93% ✗ $21.1K
Feb 23, 2026 Feb 25, 2026 Hankamer Brittany EVP, Chief HR Officer Sell 48.8 -1,683 -0.67% ✗ $15K
Feb 23, 2026 Feb 25, 2026 Jones R. Brent CFO Sell 48.8 -2,805 -0.66% ✗ $24.9K
Feb 23, 2026 Feb 25, 2026 Gourdier Benoit EVP, Bioscience & Medtech Sell 48.8 -3,029 -0.83% ✗ $26.9K
Feb 23, 2026 Feb 25, 2026 Eck Steven W SVP & Chief Accounting Officer Sell 46.3 -2,469 -2.43% ✗ $22K
Feb 19, 2026 Feb 23, 2026 Hankamer Brittany EVP, Chief HR Officer Sell 91.3 +79,165 46.14% ✗ $13.1K
Feb 19, 2026 Feb 23, 2026 LUCIER GREGORY T Director Buy 97.5 +50,000 572.34% ✗ $458K
Feb 19, 2026 Feb 23, 2026 Blenn Mary COO Neutral 90.0 +235,993 1356.98% ✗ -
Feb 19, 2026 Feb 23, 2026 Eck Steven W SVP & Chief Accounting Officer Sell 91.3 +46,734 84.87% ✗ $19.2K
Feb 19, 2026 Feb 23, 2026 Ligner Emmanuel CEO Neutral 90.0 +483,713 170.67% ✗ -
Feb 19, 2026 Feb 23, 2026 Walker Corey President Sell 91.3 +156,274 67.57% ✗ $44.8K
Feb 19, 2026 Feb 23, 2026 Sokenu Claudius EVP, Chief Legal & Compliance Sell 91.3 +77,699 43.87% ✗ $26.4K
Feb 19, 2026 Feb 23, 2026 Gourdier Benoit EVP, Bioscience & Medtech Sell 91.3 +130,204 55.25% ✗ $37.6K
Feb 19, 2026 Feb 23, 2026 Jones R. Brent CFO Sell 95.0 +151,731 56.02% ✗ $85.8K
Feb 12, 2026 Feb 12, 2026 SUMME GREGORY L Director Buy 97.5 +100,000 27.92% ✗ $940K
Jan 2, 2026 Jan 12, 2026 Dingemans Simon Director Neutral 90.0 +6,225 100.00% ✗ -
Jan 12, 2026 Dingemans Simon Director Neutral 52.5 - 0.00% ✗ -
Dec 5, 2025 Dec 9, 2025 MEHRA SANJEEV K Director Buy 100.0 +358,106 100.00% ✗ $3.9M
Dec 9, 2025 MEHRA SANJEEV K Director Neutral 52.5 - 0.00% ✗ -
Nov 17, 2025 Nov 17, 2025 Ligner Emmanuel CEO Buy 97.5 +87,500 44.66% ✗ $993.1K
Nov 10, 2025 Nov 12, 2025 Blenn Mary COO Neutral 90.0 +17,391 100.00% ✗ -
Nov 12, 2025 Blenn Mary COO Neutral 52.5 - 0.00% ✗ -
Oct 30, 2025 Oct 31, 2025 SUMME GREGORY L Director Buy 100.0 +100,000 38.74% ✗ $1.1M
Oct 3, 2025 Oct 7, 2025 LUCIER GREGORY T Director Neutral 90.0 +8,736 100.00% ✗ -
Oct 7, 2025 LUCIER GREGORY T Director Neutral 52.5 - 0.00% ✗ -
Oct 2, 2025 Oct 3, 2025 Gourdier Benoit EVP, Bioscience Production Sell 48.8 -1,264 -0.53% ✗ $17.4K
Aug 21, 2025 Aug 22, 2025 SUMME GREGORY L Director Buy 100.0 +100,000 63.25% ✗ $1.3M
Aug 18, 2025 Aug 21, 2025 Ligner Emmanuel CEO Neutral 90.0 +195,924 100.00% ✗ -
Aug 21, 2025 Ligner Emmanuel CEO Neutral 52.5 - 0.00% ✗ -
Aug 14, 2025 Aug 15, 2025 Hankamer Brittany EVP, Chief HR Officer Sell 52.5 -181 -0.11% ✗ $2.3K
Aug 8, 2025 Aug 12, 2025 Couturier Christophe EVP, AMEA Neutral 90.0 +65,217 44.65% ✗ -
Aug 5, 2025 Aug 6, 2025 Eck Steven W SVP & Chief Accounting Officer Sell 26.3 -3,476 -5.94% ✗ $39.6K
Jul 31, 2025 Aug 4, 2025 Eck Steven W SVP & Chief Accounting Officer Sell 46.3 -1,385 -2.31% ✗ $18.6K
Jul 24, 2025 Jul 25, 2025 Sokenu Claudius EVP, Chief Legal & Compliance Sell 46.3 -3,123 -1.73% ✗ $43.8K
Jun 21, 2025 Jun 24, 2025 Walker Corey President Sell 46.3 -2,730 -1.17% ✗ $37K
May 23, 2025 May 27, 2025 SUMME GREGORY L Director Buy 97.5 +30,000 23.42% ✗ $375K
May 22, 2025 May 22, 2025 SUMME GREGORY L Director Buy 97.5 +20,000 18.50% ✗ $253K
May 21, 2025 May 21, 2025 Stubblefield Michael CEO Neutral 52.5 - 0.00% ✗ -
May 9, 2025 May 12, 2025 Walker Corey President Neutral 90.0 +162,866 228.95% ✗ -
May 8, 2025 May 12, 2025 Carethers John Director Neutral 90.0 +17,100 59.46% ✗ -
May 9, 2025 May 12, 2025 Eck Steven W SVP & Chief Accounting Officer Neutral 90.0 +20,358 51.45% ✗ -
May 9, 2025 May 12, 2025 Sokenu Claudius EVP, Chief Legal & Compliance Neutral 90.0 +122,149 210.31% ✗ -
May 8, 2025 May 12, 2025 SUMME GREGORY L Director Neutral 90.0 +17,100 41.70% ✗ -
May 8, 2025 May 12, 2025 Massaro Joseph R Director Neutral 90.0 +17,100 48.80% ✗ -
May 9, 2025 May 12, 2025 Hankamer Brittany EVP, Chief HR Officer Neutral 90.0 +122,149 246.29% ✗ -
May 8, 2025 May 12, 2025 Peacock Jonathan M Director Neutral 85.0 +17,100 8.44% ✗ -
May 8, 2025 May 12, 2025 Kang Lan Director Neutral 90.0 +17,100 48.56% ✗ -
May 8, 2025 May 12, 2025 Murthy Mala Director Neutral 90.0 +17,100 63.08% ✗ -
May 9, 2025 May 12, 2025 Couturier Christophe EVP, AMEA Neutral 90.0 +61,074 72.85% ✗ -
May 8, 2025 May 12, 2025 Andres Juan Director Neutral 90.0 +17,100 35.35% ✗ -
May 9, 2025 May 12, 2025 Jones R. Brent CFO Neutral 90.0 +162,866 152.48% ✗ -
May 8, 2025 May 12, 2025 Makin Louise Director Neutral 90.0 +17,100 358.49% ✗ -
May 8, 2025 May 12, 2025 SEVERINO MICHAEL Director Neutral 90.0 +17,100 39.35% ✗ -
May 9, 2025 May 12, 2025 Gourdier Benoit EVP, Bioscience Production Neutral 90.0 +162,866 219.85% ✗ -
May 7, 2025 May 9, 2025 SUMME GREGORY L Director Buy 97.5 +25,000 100.00% ✗ $300K
Apr 29, 2025 Apr 29, 2025 Massaro Joseph R Director Buy 95.0 +8,100 30.07% ✗ $99.6K
Apr 28, 2025 Apr 29, 2025 SUMME GREGORY L Director Buy 97.5 +25,000 60.96% ✗ $312.5K
Apr 28, 2025 Apr 29, 2025 Kang Lan Director Buy 95.0 +5,000 16.55% ✗ $62.9K
Apr 28, 2025 Apr 29, 2025 Peacock Jonathan M Director Buy 87.5 +8,091 4.16% ✗ $103.6K
Apr 8, 2025 Walker Corey President Neutral 52.5 - 0.00% ✗ -
Apr 5, 2025 Apr 8, 2025 Couturier Christophe EVP, AMEA Sell 50.0 -569 -0.67% ✗ $8.6K
Feb 26, 2025 Feb 28, 2025 Bramwell James EVP Sales, Customer Excellence Sell 22.5 -4,532 -4.97% ✗ $79K
Feb 26, 2025 Feb 28, 2025 Eck Steven W SVP & Chief Accounting Officer Sell 22.5 -5,940 -13.05% ✗ $103.6K
Feb 24, 2025 Feb 26, 2025 Couturier Christophe EVP, AMEA Sell 46.3 -1,306 -1.52% ✗ $22.9K
Feb 24, 2025 Feb 26, 2025 Stubblefield Michael CEO Sell 45.0 -11,769 -0.59% ✗ $206.1K
Feb 24, 2025 Feb 26, 2025 Eck Steven W SVP & Chief Accounting Officer Sell 46.3 -944 -2.03% ✗ $16.5K
Feb 24, 2025 Feb 26, 2025 Bramwell James EVP Sales, Customer Excellence Sell 46.3 -2,764 -2.94% ✗ $48.3K
Feb 24, 2025 Feb 26, 2025 Hankamer Brittany EVP, Chief HR Officer Sell 46.3 -806 -1.60% ✗ $14.1K
Feb 20, 2025 Feb 24, 2025 Gourdier Benoit EVP, Bioscience Production Sell 91.3 +32,892 79.85% ✗ $49.2K
Feb 20, 2025 Feb 24, 2025 Eck Steven W SVP & Chief Accounting Officer Sell 91.3 +16,911 57.24% ✗ $33.8K
Feb 20, 2025 Feb 24, 2025 Hankamer Brittany EVP, Chief HR Officer Sell 91.3 +15,615 44.89% ✗ $26.6K
Feb 20, 2025 Feb 24, 2025 Sokenu Claudius EVP, Chief Legal & Compliance Sell 91.3 +19,122 49.08% ✗ $40.1K
Feb 20, 2025 Feb 24, 2025 Jones R. Brent CFO Neutral 90.0 +80,045 299.07% ✗ -
Feb 20, 2025 Feb 24, 2025 Stubblefield Michael CEO Sell 92.5 +142,558 7.72% ✗ $253.9K
Feb 23, 2025 Feb 24, 2025 Bramwell James EVP Sales, Customer Excellence Sell 42.5 -3,443 -3.54% ✗ $59.6K
Feb 20, 2025 Feb 24, 2025 Couturier Christophe EVP, AMEA Sell 91.3 +11,358 15.27% ✗ $26.1K
Nov 4, 2024 Nov 6, 2024 Makin Louise Director Neutral 90.0 +4,770 100.00% ✗ -
Nov 6, 2024 Makin Louise Director Neutral 52.5 - 0.00% ✗ -
Oct 2, 2024 Oct 4, 2024 Gourdier Benoit EVP, Bioscience Production Sell 46.3 -1,263 -2.98% ✗ $32.3K
Sep 5, 2024 Sep 6, 2024 Eck Steven W SVP & Chief Accounting Officer Sell 22.5 -3,525 -10.66% ✗ $88.3K
Aug 14, 2024 Aug 16, 2024 Hankamer Brittany EVP, Chief HR Officer Sell 50.0 -180 -0.51% ✗ $4.5K
Jul 31, 2024 Aug 1, 2024 Eck Steven W SVP & Chief Accounting Officer Sell 46.3 -1,337 -3.89% ✗ $35.8K
Jul 30, 2024 Aug 1, 2024 Couturier Christophe EVP, AMEA Sell 20.0 -10,100 -12.02% ✗ $272.8K
Jul 24, 2024 Jul 26, 2024 Sokenu Claudius EVP, Chief Legal & Compliance Sell 42.5 -3,122 -7.42% ✗ $69.8K
Jul 18, 2024 Jul 22, 2024 Sahin Kitty EVP, Strategy&Corp Development Sell 42.5 -3,931 -8.51% ✗ $81.5K
Jun 21, 2024 Jun 25, 2024 Walker Corey President Neutral 90.0 +28,254 100.00% ✗ -
Jun 25, 2024 Walker Corey President Neutral 52.5 - 0.00% ✗ -
May 9, 2024 May 13, 2024 Murthy Mala Director Neutral 90.0 +8,477 45.50% ✗ -
May 9, 2024 May 13, 2024 Massaro Joseph R Director Neutral 90.0 +8,477 45.92% ✗ -
May 9, 2024 May 13, 2024 SUMME GREGORY L Director Neutral 90.0 +8,477 26.06% ✗ -
May 9, 2024 May 13, 2024 Peacock Jonathan M Director Neutral 82.5 +8,477 4.55% ✗ -
May 9, 2024 May 13, 2024 SEVERINO MICHAEL Director Neutral 90.0 +8,477 24.24% ✗ -
May 9, 2024 May 13, 2024 Andres Juan Director Neutral 90.0 +8,477 21.24% ✗ -
May 9, 2024 May 13, 2024 Carethers John Director Neutral 90.0 +8,477 41.80% ✗ -
May 9, 2024 May 13, 2024 Kang Lan Director Neutral 90.0 +8,477 39.00% ✗ -
Apr 16, 2024 Apr 18, 2024 Stone Randy Lee EVP, Laboratory Solutions Sell 42.5 -6,762 -9.03% ✗ $166.3K
Apr 5, 2024 Apr 8, 2024 Couturier Christophe EVP, AMEA Sell 48.8 -569 -0.68% ✗ $14.7K
Mar 8, 2024 Mar 12, 2024 Eck Steven W SVP & Chief Accounting Officer Sell 28.8 -3,685 -9.67% ✓ $94.4K
Feb 29, 2024 Mar 1, 2024 Bramwell James EVP Sales, Customer Excellence Sell 22.5 -4,910 -4.85% ✗ $120.4K
Feb 29, 2024 Mar 1, 2024 Couturier Christophe EVP, AMEA Sell 20.0 -13,074 -13.48% ✗ $320.7K