What does CUSIP 37364X109 represent in this 13F holders report?

CUSIP 37364X109 is the security identifier for GEOS - GEOSPACE TECHNOLOGIES CORP - Common Stock used to aggregate holder disclosures.

How many institutions held GEOS - GEOSPACE TECHNOLOGIES CORP - Common Stock in Q1 2018?

79 institutional investors reported GEOS - GEOSPACE TECHNOLOGIES CORP - Common Stock for Q1 2018. Use the holders table for investor-level position and value details.

GEOSPACE TECHNOLOGIES CORP - Common Stock (GEOS)

CUSIP: 37364X109

Q1 2018 13F Holders as of 31 Mar 2018

Security type / class: Equity / Common Stock
Total 13F shares: 10,321,379
Total 13F value: $101,865,962
Share change: -428,631
SEC-reported price per share: $9.87
Number of holders: 79
Value change: -$4,383,092
Number of buys: 35
Number of sells: 34
Shares outstanding: 12,943,145

Security key

37364X109

Report period

Q1 2018

Institutions

Top holders

GEOS full security history Ownership snapshot Full 13F holder table Newer quarter: Q2 2026 GEOSPACE TECHNOLOGIES CORP SEC filings GEOSPACE TECHNOLOGIES CORP company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 37364X109

Newer quarter: Q2 2026

Recent filing periods:

Q2 2026

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

FMR LLC

Disclosed value leader

FMR LLC

Comparable rows

15/15

Latest evidence

31 Dec 2017

13F Lead comparable stake: 15% Showing 1-6 of 15 holder rows.

Quick read

FMR LLC leads the comparable SEC ownership view at 15%.

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 FMR LLC's linked filing trail.

Comparable ownership Top 5

FMR LLC 15%

BlackRock Finance, Inc. 13%

BROWN CAPITAL MANAGEMENT LLC 12%

VANGUARD GROUP INC 5.8%

DIMENSIONAL FUND ADVISORS LP 3.8%

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
FMR LLC	13F Company 13F	15%	$25,635,000 1,976,470 shares	—	31 Dec 2017
BlackRock Finance, Inc.	13F Company 13F	13%	$21,632,000 1,667,772 shares	—	31 Dec 2017
BROWN CAPITAL MANAGEMENT LLC	13F Company 13F	12%	$20,110,000 1,550,534 shares	—	31 Dec 2017
VANGUARD GROUP INC	13F Company 13F	5.8%	$9,796,000 755,341 shares	—	31 Dec 2017
DIMENSIONAL FUND ADVISORS LP	13F Company 13F	3.8%	$6,452,000 497,474 shares	—	31 Dec 2017
DISCIPLINED GROWTH INVESTORS INC /MN	13F Company 13F	3.8%	$6,374,000 491,430 shares	—	31 Dec 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 Q1 2018

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

10,321,379

Rows available

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 Q1 2018 vs Q1 2018 Across Filers

Q1 2018 holders

Holder diff

Investor	Q1 2018 Shares	Q1 2018 Shares	Share Diff	Share Chg %	Q1 2018 value	Q1 2018 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend