ATKORE INC (ATKR): Ownership & Insider Activity
Hedge funds and institutional managers reporting a position in ATKR · Industrials. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
25
13F filers
Aggregate Value
$132.4M
Across holders
Last Price
$93.49
2026-08-24
Sector
Industrials
GICS
Quarterly fund activity12 increased11 reduced3 exited
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 0001164508 | Hedge Fund | 482K | $36.7M | 27.7% | 0.0% | Reduced | $-16.4M | Q2 2026 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 402K | $30.6M | 23.1% | 0.0% | Added | +$3.7M | Q2 2026 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 178K | $13.6M | 10.2% | 0.0% | Added | +$2.4M | Q2 2026 |
| SHAW D E & CO INC CIK 0001009207 | Hedge Fund | 145K | $11.1M | 8.4% | 0.0% | Added | +$9.8M | Q2 2026 |
| Man Group plc CIK 0001637460 | Hedge Fund | 99K | $7.5M | 5.7% | 0.0% | Reduced | $-3.9M | Q2 2026 |
| Woodline Partners LP CIK 0001784547 | Hedge Fund | 94K | $7.2M | 5.4% | 0.0% | Reduced | $-597K | Q2 2026 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 51K | $3.8M | 2.9% | 0.0% | Reduced | +$3.8M | Q2 2026 |
| Point72 Asset Management, L.P. CIK 0001603466 | Hedge Fund | 50K | $3.8M | 2.9% | 0.0% | Added | — | Q2 2026 |
| Brevan Howard Capital Management LP CIK 0001512857 | Hedge Fund | 42K | $3.2M | 2.4% | 0.0% | Added | +$905K | Q2 2026 |
| BALYASNY ASSET MANAGEMENT LLC CIK 0001218710 | Hedge Fund | 28K | $2.1M | 1.6% | 0.0% | Reduced | $-1.4M | Q2 2026 |
Reduced
Hedge Fund
$36.7M· 27.7% of total· 0.0% port· 482K sh· $-16.4M QoQ· Q2 2026
Added
Hedge Fund
$30.6M· 23.1% of total· 0.0% port· 402K sh· +$3.7M QoQ· Q2 2026
Added
Hedge Fund
$13.6M· 10.2% of total· 0.0% port· 178K sh· +$2.4M QoQ· Q2 2026
Added
Hedge Fund
$11.1M· 8.4% of total· 0.0% port· 145K sh· +$9.8M QoQ· Q2 2026
Reduced
Hedge Fund
$7.5M· 5.7% of total· 0.0% port· 99K sh· $-3.9M QoQ· Q2 2026
Reduced
Hedge Fund
$7.2M· 5.4% of total· 0.0% port· 94K sh· $-597K QoQ· Q2 2026
Reduced
Hedge Fund
$3.8M· 2.9% of total· 0.0% port· 51K sh· +$3.8M QoQ· Q2 2026
Added
Hedge Fund
$3.8M· 2.9% of total· 0.0% port· 50K sh· — QoQ· Q2 2026
Added
Hedge Fund
$3.2M· 2.4% of total· 0.0% port· 42K sh· +$905K QoQ· Q2 2026
Reduced
Hedge Fund
$2.1M· 1.6% of total· 0.0% port· 28K sh· $-1.4M QoQ· Q2 2026
Reduced
Hedge Fund
$1.8M· 1.4% of total· 0.0% port· 24K sh· $-1.2M QoQ· Q2 2026
Added
Hedge Fund
$1.8M· 1.4% of total· 0.0% port· 24K sh· — QoQ· Q2 2026
Reduced
Hedge Fund
$1.8M· 1.3% of total· 0.0% port· 23K sh· $-110K QoQ· Q2 2026
Added
Hedge Fund
$1.7M· 1.3% of total· 0.0% port· 22K sh· — QoQ· Q2 2026
Reduced
Hedge Fund
$1.2M· 0.9% of total· 0.0% port· 16K sh· $-344K QoQ· Q2 2026
Added
Hedge Fund
$1.0M· 0.8% of total· 0.0% port· 13K sh· — QoQ· Q2 2026
Added
Hedge Fund
$714K· 0.5% of total· 0.0% port· 9K sh· — QoQ· Q2 2026
Reduced
Institutional Manager
$507K· 0.4% of total· 0.0% port· 7K sh· $-14K QoQ· Q2 2026
Added
Hedge Fund
$477K· 0.4% of total· 0.0% port· 6K sh· +$439K QoQ· Q2 2026
Added
Hedge Fund
$442K· 0.3% of total· 0.0% port· 6K sh· $-779K QoQ· Q2 2026
Reduced
Hedge Fund
$432K· 0.3% of total· 0.0% port· 6K sh· $-1.1M QoQ· Q2 2026
Added
Hedge Fund
$372K· 0.3% of total· 0.0% port· 5K sh· — QoQ· Q2 2026
Unchanged
Institutional Manager
$341K· 0.3% of total· 0.0% port· 4K sh· +$0 QoQ· Q2 2026
Reduced
Hedge Fund
$296K· 0.2% of total· 0.0% port· 4K sh· $-60K QoQ· Q2 2026
Unchanged
Hedge Fund
$1K· 0.0% of total· 0.0% port· 15 sh· +$0 QoQ· Q2 2026
1–10 of 25
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