INFU · InfuSystem Holdings, Inc · Shareholders & Ownership

$14.51 +0.19 (+1.29%) Q2 2026 earnings call transcript

Russell 2000 member Rebalance outlook locked

Market Cap

$285.21M

19.92M

Volume · Oct 29 36.38K Avg daily vol (3M) 138.93K

Every disclosed holder of INFU in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

How the holder list picks a filing →

Who Owns INFU

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

Holder group	Holders	Shares	% Out	Summed
Institutional (13F)	107	15,152,337	76.08%	Yes
Insiders (Forms 3, 4, 5)	11	1,369,180	6.87%	Yes
13D/G-only blocks	3	2,529,964	12.70%	Yes
Remaining	—	865,700	4.35%	Rest
Registered funds (N-PORT, not summed)	119	5,578,095	28.01%	No

Shares outstanding: 19,917,181, the issuer's latest cover-page count restated onto today's split basis.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of INFU

One row per holder Every filing By ultimate parent

All 13F Funds Insiders 13D/G Non-US

#	Holder	Shares	% Out	Change	As of	Notes
1	BlackRock, Inc. 13F CIK 2012383 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	1,585,415	7.96%	+968,829	Jun 30, 2026	carried, not yet filed for the newest quarter
1.1	BlackRock, Inc. 13G CIK 2012383 · Holding company · Jun 30, 2026 Rule 13d-1(b), qualified institution, not summed	1,286,129	6.46%	+883,681	Jun 30, 2026	Rule 13d-1(b), qualified institution, not summed
1.2	iShares Russell 2000 ETF Fund S000004344 · Registered fund · Jun 30, 2026 iShares Trust, not summed	436,700	2.19%	—	Jun 30, 2026	iShares Trust, not summed
1.3	iShares Russell 2000 Growth ETF Fund S000004343 · Registered fund · Jun 30, 2026 iShares Trust, not summed	181,074	0.91%	—	Jun 30, 2026	iShares Trust, not summed
1.4	iShares Micro-Cap ETF Fund S000004439 · Registered fund · Jun 30, 2026 iShares Trust, not summed	64,859	0.33%	+15,983	Jun 30, 2026	iShares Trust, not summed
1.5	Master Small Cap Index Series Fund S000002716 · Registered fund · Jun 30, 2026 Quantitative Master Series LLC, not summed	36,043	0.18%	—	Jun 30, 2026	Quantitative Master Series LLC, not summed
2	Minerva Advisors LLC 13F CIK 1541536 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,348,617	6.77%	+144,512	Jun 30, 2026	carried, not yet filed for the newest quarter
3	Acuitas Investments, LLC 13G CIK 1524828 · Registered investment adviser · Sep 30, 2024 Rule 13d-1(b), qualified institution	1,029,014	5.17%	-196,137	Sep 30, 2024	Rule 13d-1(b), qualified institution
4	Sansone Advisors, LLC 13D CIK 1588957 · Exempt reporting adviser · Jan 21, 2025	939,294	4.72%	-262,349	Jan 21, 2025
5	PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. 13F CIK 1238990 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	834,750	4.19%	-3,175	Jun 30, 2026	carried, not yet filed for the newest quarter
6	VANGUARD CAPITAL MANAGEMENT LLC 13F CIK 2100119 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	790,775	3.97%	-69,488	Jun 30, 2026	carried, not yet filed for the newest quarter
7	ACADIAN ASSET MANAGEMENT LLC 13F CIK 916542 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	743,155	3.73%	+109,111	Jun 30, 2026	carried, not yet filed for the newest quarter
8	HEARTLAND ADVISORS INC 13F CIK 937394 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	700,000	3.51%	+190,000	Jun 30, 2026	carried, not yet filed for the newest quarter
8.1	Heartland Value Fund Fund S000003523 · Registered fund · Jun 30, 2026 HEARTLAND GROUP INC., not summed	700,000	3.51%	+190,000	Jun 30, 2026	HEARTLAND GROUP INC., not summed
9	AMERICAN CENTURY COMPANIES INC 13F CIK 748054 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	675,028	3.39%	+202,007	Jun 30, 2026	carried, not yet filed for the newest quarter
10	First Eagle Investment Management, LLC 13F CIK 1325447 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	620,000	3.11%	-101,371	Jun 30, 2026	carried, not yet filed for the newest quarter
10.1	First Eagle Small Cap Opportunity Fund Fund S000072438 · Registered fund · Jul 31, 2026 First Eagle Funds, not summed	551,170	2.77%	-85,960	Jul 31, 2026	First Eagle Funds, not summed
11	DIMENSIONAL FUND ADVISORS LP 13F CIK 354204 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	599,289	3.01%	+5,001	Jun 30, 2026	carried, not yet filed for the newest quarter
11.1	U.S. Targeted Value Portfolio Fund S000000970 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	96,505	0.48%	+7,686	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
11.2	U.S. SMALL CAP PORTFOLIO Fund S000000971 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	87,815	0.44%	0	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
11.3	Dimensional U.S. Small Cap ETF Fund S000070906 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	66,632	0.33%	0	Jul 31, 2026	Dimensional ETF Trust, not summed
11.4	Dimensional U.S. Targeted Value ETF Fund S000070901 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	64,197	0.32%	+5,023	Jul 31, 2026	Dimensional ETF Trust, not summed
11.5	U.S. MICRO CAP PORTFOLIO Fund S000000948 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	63,868	0.32%	0	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
12	AWM Investment Company, Inc. 13G CIK 1535264 · Registered investment adviser · Sep 30, 2025 Rule 13d-1(b), qualified institution	561,656	2.82%	-710,640	Sep 30, 2025	Rule 13d-1(b), qualified institution
13	VANGUARD TOTAL STOCK MARKET INDEX FUND Fund S000002848 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	547,219	2.75%	-65,200	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
14	RENAISSANCE TECHNOLOGIES LLC 13F CIK 1037389 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	543,009	2.73%	-23,800	Jun 30, 2026	carried, not yet filed for the newest quarter
15	Avantis U.S. Small Cap Value ETF Fund S000066459 · Registered fund · May 31, 2026 American Century ETF Trust, not summed	540,105	2.71%	+132,379	May 31, 2026	American Century ETF Trust, not summed
16	GEODE CAPITAL MANAGEMENT, LLC 13F CIK 1214717 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	496,059	2.49%	+277,614	Jun 30, 2026	carried, not yet filed for the newest quarter
17	DIAMOND HILL CAPITAL MANAGEMENT INC 13F CIK 1217541 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	489,017	2.46%	+489,017	Jun 30, 2026	carried, not yet filed for the newest quarter
17.1	DIAMOND HILL SMALL CAP FUND Fund S000003154 · Registered fund · Jun 30, 2026 Diamond Hill Funds, not summed	227,028	1.14%	—	Jun 30, 2026	Diamond Hill Funds, not summed
18	Meros Investment Management, LP 13F CIK 1911372 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	468,934	2.35%	-474	Jun 30, 2026	carried, not yet filed for the newest quarter
19	Dilorio Richard Insider CIK 1706994 · May 17, 2025 Director, Chief Executive Officer, issuer-wide	426,525	2.14%	+9,866	May 17, 2025	Director, Chief Executive Officer, issuer-wide
20	Hillsdale Investment Management Inc. 13F CIK 1368465 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	424,473	2.13%	-27,900	Jun 30, 2026	carried, not yet filed for the newest quarter
21	Shuda Scott Insider CIK 1486636 · Sep 10, 2026 Director, issuer-wide	372,383	1.87%	-20,000	Sep 10, 2026	Director, issuer-wide
21.1	Meridian OHC Partners, LP 13D CIK 1486636 · Unknown · Dec 5, 2024 not summed	400,377	2.01%	—	Dec 5, 2024	not summed
22	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 13F CIK 1164508 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	368,712	1.85%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
23	Lachance Carrie Insider CIK 1790024 · May 18, 2026 Director, President and CEO, issuer-wide	266,391	1.34%	+28,268	May 18, 2026	Director, President and CEO, issuer-wide
24	VANGUARD EXTENDED MARKET INDEX FUND Fund S000002841 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	228,862	1.15%	+4,014	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
25	WHITE PINE CAPITAL LLC 13F CIK 1137429 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	225,634	1.13%	+95,218	Jun 30, 2026	carried, not yet filed for the newest quarter
26	STATE STREET CORP 13F CIK 93751 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	212,571	1.07%	+114,500	Jun 30, 2026	carried, not yet filed for the newest quarter
26.1	State Street Total Return V.I.S. Fund Fund S000001637 · Registered fund · Jun 30, 2026 STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed	487	0.00%	—	Jun 30, 2026	STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
27	PANAGORA ASSET MANAGEMENT INC 13F CIK 883677 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	194,922	0.98%	+112,134	Jun 30, 2026	carried, not yet filed for the newest quarter
28	North Star Investment Management Corp. 13F CIK 1342857 · Investment adviser · Sep 30, 2026	186,150	0.93%	+4,150	Sep 30, 2026
29	Teton Advisors, LLC 13F CIK 2086025 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	185,000	0.93%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
30	TETON Westwood Mighty Mites Fund Fund S000001084 · Registered fund · Jun 30, 2026 Teton Westwood Funds, not summed	185,000	0.93%	0	Jun 30, 2026	Teton Westwood Funds, not summed
31	Expect Equity LLC 13F CIK 2007407 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	184,819	0.93%	+103,873	Jun 30, 2026	carried, not yet filed for the newest quarter
32	North Star Micro Cap Fund Fund S000040440 · Registered fund · May 31, 2026 NORTHERN LIGHTS FUND TRUST II, not summed	182,000	0.91%	+39,000	May 31, 2026	NORTHERN LIGHTS FUND TRUST II, not summed
33	CITADEL ADVISORS LLC 13F CIK 1423053 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	180,650	0.91%	+10,696	Jun 30, 2026	carried, not yet filed for the newest quarter
34	GSA CAPITAL PARTNERS LLP 13F CIK 1362033 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	160,439	0.81%	-2,231	Jun 30, 2026	carried, not yet filed for the newest quarter
35	NORTHERN TRUST CORP 13F CIK 73124 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	153,506	0.77%	+96,695	Jun 30, 2026	carried, not yet filed for the newest quarter
35.1	Small Cap Index Fund Fund S000001245 · Registered fund · Jun 30, 2026 Northern Funds, not summed	9,963	0.05%	—	Jun 30, 2026	Northern Funds, not summed
36	TWO SIGMA INVESTMENTS, LP 13F CIK 1179392 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	148,347	0.74%	-37,064	Jun 30, 2026	carried, not yet filed for the newest quarter
37	GABELLI FUNDS LLC 13F CIK 1081407 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	145,085	0.73%	-3,400	Jun 30, 2026	carried, not yet filed for the newest quarter
38	VANGUARD FIDUCIARY TRUST CO 13F CIK 933478 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	141,134	0.71%	+19,146	Jun 30, 2026	carried, not yet filed for the newest quarter
39	VANGUARD PORTFOLIO MANAGEMENT LLC 13F CIK 2100121 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	134,038	0.67%	+134,038	Jun 30, 2026	carried, not yet filed for the newest quarter
40	Man Group plc 13F CIK 1637460 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	130,379	0.65%	+18,273	Jun 30, 2026	carried, not yet filed for the newest quarter
41	Truffle Hound Capital, LLC 13F CIK 1595862 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	128,629	0.65%	-101,371	Jun 30, 2026	carried, not yet filed for the newest quarter
42	Steele Barry G Insider CIK 1305741 · May 18, 2026 Executive VP and CFO, issuer-wide	117,767	0.59%	+21,177	May 18, 2026	Executive VP and CFO, issuer-wide
43	Russell Investments Group, Ltd. 13F CIK 1692234 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	117,545	0.59%	-12,513	Jun 30, 2026	carried, not yet filed for the newest quarter
44	Clayton Partners LLC 13F CIK 1550509 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	104,327	0.52%	+91,927	Jun 30, 2026	carried, not yet filed for the newest quarter
45	Bank of New York Mellon Corp 13F CIK 1390777 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	103,136	0.52%	+38,057	Jun 30, 2026	carried, not yet filed for the newest quarter
46	GOLDMAN SACHS GROUP INC 13F CIK 886982 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	102,076	0.51%	+29,744	Jun 30, 2026	carried, not yet filed for the newest quarter
46.1	Goldman Sachs Absolute Return Tracker Fund Fund S000020314 · Registered fund · Aug 31, 2026 GOLDMAN SACHS TRUST, not summed	40,677	0.20%	+18,530	Aug 31, 2026	GOLDMAN SACHS TRUST, not summed
46.2	Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF Fund S000048296 · Registered fund · Aug 31, 2026 Goldman Sachs ETF Trust, not summed	32,877	0.17%	—	Aug 31, 2026	Goldman Sachs ETF Trust, not summed
46.3	Goldman Sachs Variable Insurance Trust Small Cap Equity Insights Fund Fund S000009355 · Registered fund · Jun 30, 2026 Goldman Sachs Variable Insurance Trust, not summed	14,582	0.07%	—	Jun 30, 2026	Goldman Sachs Variable Insurance Trust, not summed
46.4	Goldman Sachs Small Cap Growth Insights Fund Fund S000014930 · Registered fund · Jul 31, 2026 Goldman Sachs Trust, not summed	5,162	0.03%	—	Jul 31, 2026	Goldman Sachs Trust, not summed
47	BRIDGEWAY CAPITAL MANAGEMENT, LLC 13F CIK 1107261 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	99,700	0.50%	+31,800	Jun 30, 2026	carried, not yet filed for the newest quarter
47.1	Ultra-Small Company Fund Fund S000004423 · Registered fund · Jun 30, 2026 Bridgeway Funds, Inc., not summed	61,800	0.31%	+31,800	Jun 30, 2026	Bridgeway Funds, Inc., not summed
47.2	Ultra-Small Company Market Fund Fund S000004424 · Registered fund · Jun 30, 2026 Bridgeway Funds, Inc., not summed	34,800	0.17%	0	Jun 30, 2026	Bridgeway Funds, Inc., not summed
48	ACUITAS US MICROCAP FUND Fund S000045890 · Registered fund · Jun 30, 2026 FORUM FUNDS II, not summed	95,254	0.48%	+60,976	Jun 30, 2026	FORUM FUNDS II, not summed
49	O'SHAUGHNESSY ASSET MANAGEMENT, LLC 13F CIK 1423442 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	89,906	0.45%	+50,318	Jun 30, 2026	carried, not yet filed for the newest quarter
50	Connor, Clark & Lunn Investment Management Ltd. 13F CIK 1596800 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	83,207	0.42%	+11,846	Jun 30, 2026	carried, not yet filed for the newest quarter

15 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 186 holders

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Key facts CIK 1337013 CUSIP 45685K102 13F (30d) 14 filings 14 filers Visit website Investor relations