Save your place

Sign in to WhoBought

Please try again later.

AptarGroup, Inc. (ATR) institutional ownership

Latest close $133.96 Jul 31, 2026
Market cap$8.9B 52-week range SectorHealthcare
Funds holding · Q1 2026
496
reported ATR position changes
Top owners · Q2 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Activity unavailable N/A
289 buyers · 207 sellers

AptarGroup, Inc. (ATR) price and institutional activity

Dates

Q1 2026

$0 bought by 289 investors
AQR Capital Management LLCAtlas Frm LLC +287 more
$0 sold by 207 investors
Mawer Investment Management Ltd.Norges +205 more
Bought Sold Totals per quarter; hover a bar for the names.

AptarGroup, Inc. (ATR) institutional activity · 496

Investor Type Est. change Change Δ Own Date
Mawer Investment Management Ltd. · Reduced
Change −1.4M Date Q1 2026
Mawer Investment Management Ltd. Reduced· Q1 2026 −1.4M Q1 2026
Norges · Exited
Change −747K Δ Own −100.0% Date Q1 2026
Norges Exited· Q1 2026 −747K −100.0% Q1 2026
Morgan Stanley · Reduced
Change −674K Date Q1 2026
Morgan Stanley Reduced· Q1 2026 −674K Q1 2026
AQR Capital Management LLC · Added
Change +386K Date Q1 2026
AQR Capital Management LLC Added· Q1 2026 +386K Q1 2026
Atlas Frm LLC · New
Change +350K Date Q1 2026
Atlas Frm LLC New· Q1 2026 +350K Q1 2026
Quantinno Capital Management LP · Added
Change +296K Date Q1 2026
Quantinno Capital Management LP Added· Q1 2026 +296K Q1 2026
D. E. Shaw & Co., Inc. · Added
Change +285K Δ Own +144.5% Date Q1 2026
D. E. Shaw & Co., Inc. Added· Q1 2026 +285K +144.5% Q1 2026
Schroder Investment Management Group · Added
Change +262K Date Q1 2026
Schroder Investment Management Group Added· Q1 2026 +262K Q1 2026
River Road Asset Management, LLC · Added
Change +259K Date Q1 2026
River Road Asset Management, LLC Added· Q1 2026 +259K Q1 2026
Vanguard · Added
Change +235K Date Q1 2026
Vanguard Added· Q1 2026 +235K Q1 2026
Dimensional · Added
Change +204K Date Q1 2026
Dimensional Added· Q1 2026 +204K Q1 2026
Balyasny Asset Management L.P. · Added
Change +185K Date Q1 2026
Balyasny Asset Management L.P. Added· Q1 2026 +185K Q1 2026
Ae Wealth Management LLC · Reduced
Change −183K Date Q1 2026
Ae Wealth Management LLC Reduced· Q1 2026 −183K Q1 2026
T. Rowe Price Investment Management, Inc. · Exited
Change −183K Δ Own −100.0% Date Q1 2026
T. Rowe Price Investment Management, Inc. Exited· Q1 2026 −183K −100.0% Q1 2026
First Trust Advisors LP · Added
Change +161K Date Q1 2026
First Trust Advisors LP Added· Q1 2026 +161K Q1 2026
Data through Q1 2026 · filed Jun 3, 2026
15 of 496

Famous investor activity in AptarGroup, Inc. (ATR)

AptarGroup, Inc. (ATR) insider trading

Company insiders, action and economics first; trade and filed dates last.
Dates
Insider Title Type Price Qty Value Owned ΔOwn Trade date Filed date
Fotiades George L. · Director Grant (A) 151
Owned 6K ΔOwn +2.4% Trade date Jul 16, 2026 Filed date Jul 17, 2026
Fotiades George L. Director Grant (A) 151 6K +2.4% Jul 16, 2026 Jul 17, 2026
Kampouri Monnas Giovanna · Director Grant (A) 151
Owned 10K ΔOwn +1.5% Trade date Jul 16, 2026 Filed date Jul 17, 2026
Kampouri Monnas Giovanna Director Grant (A) 151 10K +1.5% Jul 16, 2026 Jul 17, 2026
Marey-Semper Isabel · Director Grant (A) 151
Owned 10K ΔOwn +1.6% Trade date Jul 16, 2026 Filed date Jul 17, 2026
Marey-Semper Isabel Director Grant (A) 151 10K +1.6% Jul 16, 2026 Jul 17, 2026
Matthews Candace S. · Director Grant (A) 226
Owned 8K ΔOwn +2.9% Trade date Jul 16, 2026 Filed date Jul 17, 2026
Matthews Candace S. Director Grant (A) 226 8K +2.9% Jul 16, 2026 Jul 17, 2026
Wunderlich Ralf K. · Director Grant (A) 151
Owned 19K ΔOwn +0.8% Trade date Jul 16, 2026 Filed date Jul 17, 2026
Wunderlich Ralf K. Director Grant (A) 151 19K +0.8% Jul 16, 2026 Jul 17, 2026
Owens B. Craig · Director Grant (A) 151
Owned 11K ΔOwn +1.4% Trade date Jul 16, 2026 Filed date Jul 17, 2026
Owens B. Craig Director Grant (A) 151 11K +1.4% Jul 16, 2026 Jul 17, 2026
Glickman Sarah Js · Director Grant (A) 151
Owned 5K ΔOwn +3.4% Trade date Jul 16, 2026 Filed date Jul 17, 2026
Glickman Sarah Js Director Grant (A) 151 5K +3.4% Jul 16, 2026 Jul 17, 2026
Xing Julie · Director Grant (A) 151
Owned 5K ΔOwn +3.0% Trade date Jul 16, 2026 Filed date Jul 17, 2026
Xing Julie Director Grant (A) 151 5K +3.0% Jul 16, 2026 Jul 17, 2026
Trerotola Matthew L. · Director Grant (A) 151
Owned 9K ΔOwn +1.6% Trade date Jul 16, 2026 Filed date Jul 17, 2026
Trerotola Matthew L. Director Grant (A) 151 9K +1.6% Jul 16, 2026 Jul 17, 2026
Gandhi Aditya · Officer Grant (A) 3K
Owned 3K Trade date Jun 15, 2026 Filed date Jun 16, 2026
Gandhi Aditya Officer Grant (A) 3K 3K Jun 15, 2026 Jun 16, 2026
Prieur Marc · Officer 2 operations −$578K
Price $115.53–$116.08 Qty −5K Owned 19K Trade date Jun 9, 2026 Filed date Jun 10, 2026
Prieur Marc Officer 2 operations $115.53–$116.08 −5K −$578K 19K Jun 9, 2026 Jun 10, 2026
Vinczeller Shiela · Officer 3 operations −$400K
Price $112.36–$114.53 Qty −4K Owned 27K Trade date Jun 4, 2026 Filed date Jun 5, 2026
Vinczeller Shiela Officer 3 operations $112.36–$114.53 −4K −$400K 27K Jun 4, 2026 Jun 5, 2026
Gong Xiangwei · Officer Sell −$488K
Price $116.13 Qty −4K Owned 11K Trade date May 26, 2026 Filed date May 27, 2026
Gong Xiangwei Officer Sell $116.13 −4K −$488K 11K May 26, 2026 May 27, 2026
Tlili Hedi · Officer Tax withholding or exercise payment (F) -$80K
Price $116.50 Qty -688 Owned 24K Trade date May 21, 2026 Filed date May 21, 2026
Tlili Hedi Officer Tax withholding or exercise payment (F) $116.50 -688 -$80K 24K May 21, 2026 May 21, 2026
Hudson Irene Elizabeth · Officer 2 operations −$156K
Price $123.38–$123.45 Qty −1K Owned 1K Trade date May 7, 2026 Filed date May 8, 2026
Hudson Irene Elizabeth Officer 2 operations $123.38–$123.45 −1K −$156K 1K May 7, 2026 May 8, 2026
15 of 82
15 of 82 Sign in to continue to older insider transactions.

AptarGroup, Inc. (ATR) activist and large shareholders

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
Vanguard Portfolio Management LLC 3.8M
% of shares outstanding 5.9% Filing date Apr 28, 2026
Vanguard Portfolio Management LLC 3.8M 5.9% Apr 28, 2026
Vanguard Capital Management LLC 3.4M
% of shares outstanding 5.3% Filing date Apr 29, 2026
Vanguard Capital Management LLC 3.4M 5.3% Apr 29, 2026
2 of 2

AptarGroup, Inc. (ATR) ownership FAQ

Who owns ATR?

496 reporting institutions disclosed ATR position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.