ACK Asset Management LLC
All 13F Filings
- Location
- Greenwich, CT
- Most recent 13F
- Q2 2026
- Holdings value ($000)
- 856,327
- Description
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- Website
- —
- Founded
- —
- Chairman
- —
- CEO
- —
- All SEC filings
- View on sec.gov
Sector allocation over time (stocks only)
Stacked by quarter. Hover to see detailed sector breakdown for any quarter.
| Quarter | Date Filed | Holdings | Value ($000) | Form Type | Name |
|---|---|---|---|---|---|
| Q2 2026 | 8/13/2026 | 21 | 856,327 | 13F-HR | ACK Asset Management LLC |
| Q1 2026 | 5/15/2026 | 20 | 801,145 | 13F-HR | ACK Asset Management LLC |
| Q4 2025 | 2/13/2026 | 23 | 796,757 | 13F-HR | ACK Asset Management LLC |
| Q3 2025 | 11/14/2025 | 20 | 799,134 | 13F-HR | ACK Asset Management LLC |
| Q2 2025 | 8/13/2025 | 21 | 761,426 | 13F-HR | ACK Asset Management LLC |
| Q2 2014 | 8/4/2014 | 31 | 332,746 | 13F-HR | ACK Asset Management LLC |
| Q1 2014 | 5/9/2014 | 31 | 303,678 | 13F-HR | ACK Asset Management LLC |
| Q4 2013 | 2/11/2014 | 34 | 303,177 | 13F-HR | ACK Asset Management LLC |
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Money flow by instrument (QoQ, ex-options)
| Type | Value ($000) | Share % | Inflow | Outflow | Net |
|---|---|---|---|---|---|
| Stocks | 856.3 K | 100.0% | 55.18 K | 0 | 55.18 K |
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Fund Snapshot
Q2 2026
Latest filed
8/13/2026
Total value ($000)
856,327
Holdings
21
QoQ value change ($000)
55,182
(6.9%)
Value = total reported 13F value ($000), Holdings = number of positions.
13F Value over time
Holdings count over time
Sector allocation (latest, stocks only)
Methodology:
sector allocation is stocks-only;
instrument flow table is ex-options;
options exposure is shown separately.
Details.