Security key
37364X109
GEOSPACE TECHNOLOGIES CORP - Common Stock (GEOS)
CUSIP: 37364X109
Q2 2021 13F Holders as of 30 Jun 2021
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 8,211,485
- Total 13F value
- $66,427,052
- Share change
- +497,955
- SEC-reported price per share
- $8.09
- Number of holders
- 43
- Value change
- +$3,945,960
- Number of buys
- 17
- Number of sells
- 22
- Shares outstanding
- 12,944,502
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2021
Institutions
43
Top holders
10
GEOS full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2026
GEOSPACE TECHNOLOGIES CORP SEC filings
GEOSPACE TECHNOLOGIES CORP company facts
Broader feeds
Reporting periods
Holder history for CUSIP 37364X109
Recent filing periods:
Ownership snapshot
Top reported holders of GEOS - GEOSPACE TECHNOLOGIES CORP - 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
DISCIPLINED GROWTH INVEST...
Disclosed value leader
DISCIPLINED GROWTH INVEST...
Comparable rows
0/15
Latest evidence
31 Mar 2021
13F
Highest disclosed value: $12,421,000
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
DISCIPLINED GROWTH INVESTORS INC /MN has the largest disclosed position value at $12.42M.
0 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 DISCIPLINED GROWTH INVESTORS INC /MN's linked filing trail.
Disclosed position value
Top 5
DISCIPLINED GROWTH INVESTORS INC /MN
$12.42M
FMR LLC
$11.99M
DIMENSIONAL FUND ADVISORS LP
$6.84M
VANGUARD GROUP INC
$5.87M
Tieton Capital Management, LLC
$5.66M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| DISCIPLINED GROWTH INVESTORS INC /MN |
13F
Company
|
—
denominator unverified
|
$12,421,000
1,361,971 shares
|
— | 31 Mar 2021 |
| FMR LLC |
13F
Company
|
—
denominator unverified
|
$11,988,000
1,314,466 shares
|
— | 31 Mar 2021 |
| DIMENSIONAL FUND ADVISORS LP |
13F
Company
|
—
denominator unverified
|
$6,842,000
750,255 shares
|
— | 31 Mar 2021 |
| VANGUARD GROUP INC |
13F
Company
|
—
denominator unverified
|
$5,867,000
643,273 shares
|
— | 31 Mar 2021 |
| Tieton Capital Management, LLC |
13F
Company
|
—
denominator unverified
|
$5,664,000
621,015 shares
|
— | 31 Mar 2021 |
| RUTABAGA CAPITAL MANAGEMENT LLC/MA |
13F
Company
|
—
denominator unverified
|
$3,761,000
412,412 shares
|
— | 31 Mar 2021 |
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 Q2 2021
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
43
Shares
8,211,485
Rows available
43
| 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 Q2 2021 vs Q1 2021 Across Filers
Q1 2021 holders
44
Q2 2021 holders
43
Holder diff
-1
| Investor | Q1 2021 Shares | Q2 2021 Shares | Share Diff | Share Chg % | Q1 2021 value | Q2 2021 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend