Aptargroup ATR Insider Ownership

NYSE ATR

$125.69 -0.08 (-0.06%)

As of: Oct 21, 2026 · 3:59 PM EDT

Insider Holdings by Owner

578.74K Shares

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

0.778%

▼-0.123% pp QoQ

Shares Held by Insiders

494.94K

filed for Sep 2026

▼-13.67% QoQ

Shares Outstanding

63.63Mn

63,634,000 shares

Direct Holdings

494.94K

Indirect: 0

Net Shares Traded (QoQ)

-78.34K

net selling in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold

Latest quarter —

Net over range —

Buying quarters —

Insider Ownership Summary

Updated Oct 11, 2026

Across the past 12 months, open-market trades by Aptargroup insiders were all sales, totaling $7.82 million (61.22K shares).

A count shows 8 insiders selling ATR stock on the open market over the past 12 months and none buying.
Daniel Ackerman (Chief Accounting Officer) was the top open-market seller of Aptargroup over the past 12 months, with $1.82 million sold (15K shares) and the latest sale on December 12, 2025.
The latest open-market trade in ATR stock by an insider was a sale of 765 shares for $99,733 by Shiela Vinczeller (Chief Human Resources Officer) on September 2, 2026.
Away from the open market, ATR insiders received 146.65K shares in stock awards, acquired 25.68K shares through option exercises and conversions and gave up 42.84K shares to cover taxes or exercise prices over the last 12 months.
Business Quant data shows Aptargroup insiders holding 494.94K shares in total in their latest Form 4 filings, down 13.67% from 573.27K shares at the end of Q2 2026 and up 2.88% from 481.07K shares at the end of Q3 2025.
None of the 494.94K shares held by Aptargroup insiders is held through trusts, partnerships or family members; all are direct holdings.
Holdings in Aptargroup stock are reported by 20 insiders, the officers, directors and 10% owners who have filed a Form 4 in the past two years.
Aptargroup's top three insider holders by shares held are Stephan B. Tanda (President and CEO, 238.73K shares), Daniel Ackerman (Chief Accounting Officer, 32.78K shares) and Gael Touya (President and CEO, 31.74K shares).
Stephan B. Tanda holds 48.23% of the combined insider position in Aptargroup.
Institutions held 96.37% of Aptargroup's outstanding shares in their Q2 2026 13F filings, insiders about 0.78% based on their latest Form 4 filings, and other investors, including the public, the remaining 2.85%.
In the past year, 19 insiders of Aptargroup submitted 78 Form 4 filings reporting trades, awards or other transactions.
Insider figures for ATR include Form 4 filings through September 3, 2026.

Form 4 Holdings

Insiders Holding ATR

Insiders 23

Shares held 578.74K

Of outstanding 0.909%

#	Insider	Position	Direct	Total	Share of Insiders	Last Filed
1	Stephan B. Tanda	President And Ceo	238,729	238,729	41.2%	04 Aug, 2026
2	Robert Kuhn	Evp Cfo	65,552	65,552	11.3%	27 Aug, 2024
3	Daniel Ackerman	Chief Accounting Officer	32,779	32,779	5.7%	04 May, 2026
4	Gael Touya	President And Ceo	31,739	31,739	5.5%	02 Sep, 2026
5	Shiela Vinczeller	Chief Human Resources Officer	26,313	26,313	4.5%	03 Sep, 2026
6	Vanessa Kanu	Evp Cfo	24,646	24,646	4.3%	20 Mar, 2026
7	Ralf K. Wunderlich	Director	18,690	18,690	3.2%	17 Jul, 2026
8	Marc Prieur	Segment President	15,823	15,823	2.7%	05 Aug, 2026
9	Hedi Tlili	Segment President	15,379	15,379	2.7%	03 Aug, 2026
10	Andreas Kramvis	Director	12,962	12,962	2.2%	04 May, 2023
11	B Craig Owens	Director	11,234	11,234	1.9%	17 Jul, 2026
12	Kimberly Chainey	Evp And Chief Legal Officer	11,088	11,088	1.9%	10 Jun, 2025
13	Xiangwei Gong	President, Asia	10,774	10,774	1.9%	27 May, 2026
14	Monnas Giovanna Kampouri	Director	10,128	10,128	1.8%	17 Jul, 2026
15	Isabel Marey-Semper	Director	9,821	9,821	1.7%	17 Jul, 2026
16	Matthew L. Trerotola	Director	9,307	9,307	1.6%	17 Jul, 2026
17	Candace S. Matthews	Director	8,101	8,101	1.4%	17 Jul, 2026
18	George L Fotiades	Director	6,446	6,446	1.1%	17 Jul, 2026
19	Maritza Gomez Montiel	Director	5,290	5,290	0.9%	04 May, 2023
20	Julie Xing	Director	5,242	5,242	0.9%	17 Jul, 2026
21	Sarah Js Glickman	Director	4,553	4,553	0.8%	17 Jul, 2026
22	Aditya Gandhi	Cao	2,664	2,664	0.5%	16 Jun, 2026
23	Irene Elizabeth Hudson	Evp And Chief Legal Officer	1,480	1,480	0.3%	08 May, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

2,608 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
02 Sep, 2026	Shiela Vinczeller	Chief Human Resources Officer	Disposed S	765	$130.37	$99.73K	26,313	Direct
01 Sep, 2026	Gael Touya	President And Ceo	Acquired A	2,637	$0.00	$0	31,739	Direct
01 Sep, 2026	Gael Touya	President And Ceo	Acquired A	9,531	$0.00	$0	9,531	Direct
27 Aug, 2026	Gael Touya	Segment Pres., Ceo Designate	Disposed S	3,415	$133.69	$456.55K	29,427	Direct
27 Aug, 2026	Gael Touya	Segment Pres., Ceo Designate	Disposed S	325	$134.55	$43.73K	29,102	Direct
04 Aug, 2026	Marc Prieur	Segment President	Disposed S	3,376	$136.23	$459.90K	15,947	Direct
04 Aug, 2026	Marc Prieur	Segment President	Disposed S	124	$137.10	$17.00K	15,823	Direct
03 Aug, 2026	Stephan B. Tanda	President And Ceo	Acquired M	9,838	$74.79	$735.78K	248,567	Direct
03 Aug, 2026	Stephan B. Tanda	President And Ceo	Disposed S	9,838	$136.16	$1.34Mn	238,729	Direct
03 Aug, 2026	Stephan B. Tanda	President And Ceo	Disposed M	9,838	$0.00	$0	0	Direct
03 Aug, 2026	Hedi Tlili	Segment President	Disposed S	8,854	$135.00	$1.20Mn	15,379	Direct
16 Jul, 2026	Matthew L. Trerotola	Director	Acquired A	151	$0.00	$0	9,307	Direct
16 Jul, 2026	Monnas Giovanna Kampouri	Director	Acquired A	151	$0.00	$0	10,128	Direct
16 Jul, 2026	Sarah Js Glickman	Director	Acquired A	151	$0.00	$0	4,553	Direct
16 Jul, 2026	Ralf K. Wunderlich	Director	Acquired A	151	$0.00	$0	18,690	Direct
16 Jul, 2026	B Craig Owens	Director	Acquired A	151	$0.00	$0	11,234	Direct
16 Jul, 2026	George L Fotiades	Director	Acquired A	151	$0.00	$0	6,446	Direct
16 Jul, 2026	Isabel Marey-Semper	Director	Acquired A	151	$0.00	$0	9,821	Direct
16 Jul, 2026	Julie Xing	Director	Acquired A	151	$0.00	$0	5,242	Direct
16 Jul, 2026	Candace S. Matthews	Director	Acquired A	226	$0.00	$0	8,101	Direct

Showing 1 to 20 of 2,608 transactions