What does CUSIP 45685K102 represent in this 13F holders report?

CUSIP 45685K102 is the security identifier for INFU - InfuSystem Holdings, Inc - Common Stock used to aggregate holder disclosures.

How many institutions held INFU - InfuSystem Holdings, Inc - Common Stock in Q1 2021?

86 institutional investors reported INFU - InfuSystem Holdings, Inc - Common Stock for Q1 2021. Use the holders table for investor-level position and value details.

InfuSystem Holdings, Inc - Common Stock (INFU)

CUSIP: 45685K102

Q1 2021 13F Holders as of 31 Mar 2021

Security type / class: Equity / Common Stock
Total 13F shares: 12,595,272
Total 13F value: $256,455,446
Share change: +270,705
SEC-reported price per share: $20.36
Number of holders: 86
Value change: +$5,801,801
Number of buys: 42
Number of sells: 42
Shares outstanding: 20,095,766

Security key

45685K102

Report period

Q1 2021

Institutions

Top holders

INFU full security history Ownership snapshot Full 13F holder table Newer quarter: Q2 2026 InfuSystem Holdings, Inc SEC filings InfuSystem Holdings, Inc company facts

Broader feeds

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

Reporting periods

Holder history for CUSIP 45685K102

Newer quarter: Q2 2026

Recent filing periods:

Q3 2026 Q2 2026

Ownership snapshot

Top reported holders of INFU - InfuSystem Holdings, Inc - 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

AWM Investment Company, Inc.

Disclosed value leader

AWM Investment Company, Inc.

Comparable rows

0/15

Latest evidence

31 Dec 2020

13F Highest disclosed value: $37,560,000 15 rows are not safely comparable across share classes. Showing 1-6 of 15 holder rows.

Quick read

AWM Investment Company, Inc. has the largest disclosed position value at $37.56M.

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 AWM Investment Company, Inc.'s linked filing trail.

Disclosed position value Top 5

AWM Investment Company, Inc. $37.56M

Minerva Advisors LLC $23.9M

NEXT CENTURY GROWTH INVESTORS LLC $18.09M

BlackRock Finance, Inc. $15.05M

VANGUARD GROUP INC $14.97M

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
AWM Investment Company, Inc.	13F Company 13F	— denominator unverified	$37,560,000 2,000,000 shares	—	31 Dec 2020
Minerva Advisors LLC	13F Company 13F	— denominator unverified	$23,896,000 1,272,407 shares	—	31 Dec 2020
NEXT CENTURY GROWTH INVESTORS LLC	13F Company 13F	— denominator unverified	$18,089,000 963,250 shares	—	31 Dec 2020
BlackRock Finance, Inc.	13F Company 13F	— denominator unverified	$15,052,000 801,523 shares	—	31 Dec 2020
VANGUARD GROUP INC	13F Company 13F	— denominator unverified	$14,971,000 797,191 shares	—	31 Dec 2020
Russell Investments Group, Ltd.	13F Company 13F	— denominator unverified	$12,065,000 642,611 shares	—	31 Dec 2020

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 2021

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

Institutions

12,595,272

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 2021 vs Q2 2026 Across Filers

Q2 2026 holders

100

Q1 2021 holders

Holder diff

-14

Investor	Q2 2026 Shares	Q1 2021 Shares	Share Diff	Share Chg %	Q2 2026 value	Q1 2021 value	Value change	Value Chg %

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend