Security key
126389105
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 1,003,442
- Total 13F value
- $11,021,000
- Share change
- -39,269
- SEC-reported price per share
- $10.97
- Number of holders
- 14
- Value change
- -$423,103
- Number of buys
- 3
- Number of sells
- 7
- Shares outstanding
- 9,933,610
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q3 2017
Institutions
14
Top holders
10
CSPI full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2025
CSP INC /MA/ SEC filings
CSP INC /MA/ company facts
Broader feeds
Reporting periods
Holder history for CUSIP 126389105
Recent filing periods:
Ownership snapshot
Top reported holders of CSPI - CSP INC /MA/ - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
DIMENSIONAL FUND ADVISORS LP
Disclosed value leader
DIMENSIONAL FUND ADVISORS LP
Comparable rows
15/15
Latest evidence
30 Jun 2017
13F
Lead comparable stake: 3.1%
Showing 1-6 of 15 holder rows.
Quick read
DIMENSIONAL FUND ADVISORS LP leads the comparable SEC ownership view at 3.1%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens DIMENSIONAL FUND ADVISORS LP's linked filing trail.
Comparable ownership
Top 5
DIMENSIONAL FUND ADVISORS LP
3.1%
RENAISSANCE TECHNOLOGIES LLC
2.5%
CALIFORNIA PUBLIC EMPLOYEES RETIR...
2.2%
VANGUARD GROUP INC
1%
BRIDGEWAY CAPITAL MANAGEMENT, LLC
0.51%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| DIMENSIONAL FUND ADVISORS LP |
13F
Company
|
3.1%
|
$3,263,000
303,494 shares
|
— | 30 Jun 2017 |
| RENAISSANCE TECHNOLOGIES LLC |
13F
Company
|
2.5%
|
$2,686,000
249,200 shares
|
— | 30 Jun 2017 |
| CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM |
13F
Company
|
2.2%
|
$2,327,000
216,453 shares
|
— | 30 Jun 2017 |
| VANGUARD GROUP INC |
13F
Company
|
1%
|
$1,077,000
100,141 shares
|
— | 30 Jun 2017 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC |
13F
Company
|
0.51%
|
$549,000
51,100 shares
|
— | 30 Jun 2017 |
| Nationwide Fund Advisors |
13F
Company
|
0.32%
|
$343,000
31,915 shares
|
— | 30 Jun 2017 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q3 2017
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
14
Shares
1,003,442
Rows available
14
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q3 2017 vs Q1 2026 Across Filers
Q1 2026 holders
48
Q3 2017 holders
14
Holder diff
-34
| Investor | Q1 2026 Shares | Q3 2017 Shares | Share Diff | Share Chg % | Q1 2026 value | Q3 2017 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend