APTARGROUP INC (ATR): Ownership & Insider Activity
Hedge funds and institutional managers reporting a position in ATR · Materials. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
22
13F filers
Aggregate Value
$359.0M
Across holders
Last Price
$134.75
2026-08-24
Sector
Materials
GICS
Quarterly fund activity11 increased11 reduced3 exited
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 680K | $84.7M | 23.6% | 0.0% | Reduced | +$84.6M | Q2 2026 |
| SHAW D E & CO INC CIK 0001009207 | Hedge Fund | 392K | $49.1M | 13.7% | 0.0% | Reduced | +$46.6M | Q2 2026 |
| Grantham, Mayo, Van Otterloo & Co. LLC CIK 0001352662 | Institutional Manager | 286K | $35.8M | 10.0% | 0.1% | Added | +$3.7M | Q2 2026 |
| Rockefeller Capital Management L.P. CIK 0001739439 | Hedge Fund | 260K | $32.6M | 9.1% | 0.0% | Added | $-121.8M | Q2 2026 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 241K | $30.2M | 8.4% | 0.0% | Added | +$29.2M | Q2 2026 |
| RENAISSANCE TECHNOLOGIES LLC CIK 0001037389 | Hedge Fund | 170K | $21.3M | 5.9% | 0.0% | Reduced | $-300K | Q2 2026 |
| MILLENNIUM MANAGEMENT LLC CIK 0001273087 | Hedge Fund | 156K | $19.5M | 5.4% | 0.0% | Reduced | $-13.2M | Q2 2026 |
| BALYASNY ASSET MANAGEMENT LLC CIK 0001218710 | Hedge Fund | 155K | $19.4M | 5.4% | 0.0% | Reduced | $-14.6M | Q2 2026 |
| Gotham Asset Management, LLC CIK 0001510387 | Hedge Fund | 109K | $13.7M | 3.8% | 0.0% | Added | +$9.9M | Q2 2026 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 92K | $11.5M | 3.2% | 0.0% | Added | +$7.6M | Q2 2026 |
Reduced
Hedge Fund
$84.7M· 23.6% of total· 0.0% port· 680K sh· +$84.6M QoQ· Q2 2026
Reduced
Hedge Fund
$49.1M· 13.7% of total· 0.0% port· 392K sh· +$46.6M QoQ· Q2 2026
Added
Institutional Manager
$35.8M· 10.0% of total· 0.1% port· 286K sh· +$3.7M QoQ· Q2 2026
Added
Hedge Fund
$32.6M· 9.1% of total· 0.0% port· 260K sh· $-121.8M QoQ· Q2 2026
Added
Hedge Fund
$30.2M· 8.4% of total· 0.0% port· 241K sh· +$29.2M QoQ· Q2 2026
Reduced
Hedge Fund
$21.3M· 5.9% of total· 0.0% port· 170K sh· $-300K QoQ· Q2 2026
Reduced
Hedge Fund
$19.5M· 5.4% of total· 0.0% port· 156K sh· $-13.2M QoQ· Q2 2026
Reduced
Hedge Fund
$19.4M· 5.4% of total· 0.0% port· 155K sh· $-14.6M QoQ· Q2 2026
Added
Hedge Fund
$13.7M· 3.8% of total· 0.0% port· 109K sh· +$9.9M QoQ· Q2 2026
Added
Hedge Fund
$11.5M· 3.2% of total· 0.0% port· 92K sh· +$7.6M QoQ· Q2 2026
Added
Hedge Fund
$11.4M· 3.2% of total· 0.0% port· 91K sh· +$3.6M QoQ· Q2 2026
Reduced
Hedge Fund
$7.5M· 2.1% of total· 0.0% port· 60K sh· $-11.4M QoQ· Q2 2026
Added
Hedge Fund
$7.1M· 2.0% of total· 0.0% port· 57K sh· +$2.4M QoQ· Q2 2026
Added
Hedge Fund
$3.9M· 1.1% of total· 0.0% port· 31K sh· +$2.3M QoQ· Q2 2026
Reduced
Hedge Fund
$3.3M· 0.9% of total· 0.0% port· 26K sh· $-13.4M QoQ· Q2 2026
Added
Hedge Fund
$2.7M· 0.7% of total· 0.0% port· 21K sh· — QoQ· Q2 2026
Reduced
Institutional Manager
$2.5M· 0.7% of total· 0.0% port· 20K sh· $-331K QoQ· Q2 2026
Added
Hedge Fund
$1.4M· 0.4% of total· 0.0% port· 11K sh· +$807K QoQ· Q2 2026
Reduced
Hedge Fund
$1.1M· 0.3% of total· 0.0% port· 9K sh· $-330K QoQ· Q2 2026
Reduced
Hedge Fund
$297K· 0.1% of total· 0.0% port· 2K sh· $-218K QoQ· Q2 2026
Reduced
Hedge Fund
$2K· 0.0% of total· 0.0% port· 16 sh· $-12K QoQ· Q2 2026
Added
Hedge Fund
$752· 0.0% of total· 0.0% port· 6 sh· — QoQ· Q2 2026
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