Institutional HoldersBeta

Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.

InfuSystem Holdings, Inc

CIK 0001337013INFU· quarter ending 2026-06-30

Shares outstanding

19,917,181

as of 2026-07-31 · 10-Q cover page, filed 2026-08-04

Held by 13F filers

15,744,651

79.1% of shares outstanding

Holders

100

+4 vs 2026-03-31 · 27 new, 23 exited

Value

$151.9M

shares +10.5% vs prior quarter

Share classes (cover page of the 10-Q filed 2026-08-04, as of 2026-07-31)

Class	Listed	Shares outstanding	Held by 13F filers	% of class	Holders	CUSIP
Common stock	INFU · NYSEAMER	19,917,181	15,744,651	79.1%	100	45685K102

Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.

Securities (CUSIPs held in 13F this quarter)

tick to combine

Count	CUSIP	Class (as filers write it)	Holders	Shares held	Class shares	% of class	Value	Options	Mapped via
	45685K102	COM	100	15,744,651	19,917,181	79.1%	$151.9M	—	13DG	holders →

Totals combine the ticked CUSIPs and update as you tick: common-stock classes by default; preferreds, notes, warrants and depositary shares are listed but not counted. "holders →" shows a single CUSIP on its own. Bonds are held as a principal amount, not shares. Options positions are never counted as holdings.

Top holders (100 of 100 · 45685K102)

change vs 2026-03-31

#	Filer	Shares	% of class	Value	Change
1	BlackRock, Inc.	1,585,415	7.96%	$15.3M	+968,829 (+157.1%)
2	Minerva Advisors LLC	1,348,617	6.77%	$13.0M	+144,512 (+12.0%)
3	First Eagle Investment Management, LLC	1,240,000	6.23%	$12.0M	+518,629 (+71.9%)
4	PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC.	834,750	4.19%	$8.1M	-3,175 (-0.4%)
5	VANGUARD CAPITAL MANAGEMENT LLC	790,775	3.97%	$7.6M	-69,488 (-8.1%)
6	ACADIAN ASSET MANAGEMENT LLC	743,155	3.73%	$7.2M	+109,111 (+17.2%)
7	HEARTLAND ADVISORS INC	700,000	3.51%	$6.8M	+190,000 (+37.3%)
8	AMERICAN CENTURY COMPANIES INC	675,028	3.39%	$6.5M	+202,007 (+42.7%)
9	DIMENSIONAL FUND ADVISORS LP	599,289	3.01%	$5.8M	+5,001 (+0.8%)
10	RENAISSANCE TECHNOLOGIES LLC	543,009	2.73%	$5.2M	-23,800 (-4.2%)
11	GEODE CAPITAL MANAGEMENT, LLC	496,059	2.49%	$4.8M	+277,614 (+127.1%)
12	Diamond Hill Capital Management, LLC (Investment Advisor)	489,017	2.46%	$4.7M	NEW
13	Meros Investment Management, LP	468,934	2.35%	$4.5M	-474 (-0.1%)
14	Hillsdale Investment Management Inc.	424,473	2.13%	$4.1M	-27,900 (-6.2%)
15	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	368,712	1.85%	$3.6M	—
16	WHITE PINE CAPITAL LLC	225,634	1.13%	$2.2M	-20,393 (-8.3%)
17	STATE STREET CORP	212,571	1.07%	$2.1M	+114,500 (+116.8%)
18	PANAGORA ASSET MANAGEMENT INC	194,922	0.98%	$1.9M	+112,134 (+135.4%)
19	Teton Advisors, LLC	185,000	0.93%	$1.8M	—
20	Expect Equity LLC	184,819	0.93%	$1.8M	+103,873 (+128.3%)
21	North Star Investment Management Corp.	182,000	0.91%	$1.8M	—
22	CITADEL ADVISORS LLC	180,650	0.91%	$1.7M	+10,696 (+6.3%)
23	GSA CAPITAL PARTNERS LLP	160,439	0.81%	$1.5M	-2,231 (-1.4%)
24	NORTHERN TRUST CORP	153,506	0.77%	$1.5M	+96,695 (+170.2%)
25	TWO SIGMA INVESTMENTS, LP	148,347	0.74%	$1.4M	-37,064 (-20.0%)
26	GABELLI FUNDS LLC	145,085	0.73%	$1.4M	-3,400 (-2.3%)
27	VANGUARD FIDUCIARY TRUST CO	141,134	0.71%	$1.4M	+19,146 (+15.7%)
28	VANGUARD PORTFOLIO MANAGEMENT LLC	134,038	0.67%	$1.3M	NEW
29	Man Group plc	130,379	0.65%	$1.3M	+18,273 (+16.3%)
30	Truffle Hound Capital, LLC	128,629	0.65%	$1.2M	-101,371 (-44.1%)
31	Russell Investments Group, Ltd.	117,545	0.59%	$1.1M	-12,513 (-9.6%)
32	Clayton Partners LLC	104,327	0.52%	$1.0M	+91,927 (+741.3%)
33	Bank of New York Mellon Corp	103,136	0.52%	$995K	+38,057 (+58.5%)
34	GOLDMAN SACHS GROUP INC	102,076	0.51%	$985K	+29,744 (+41.1%)
35	BRIDGEWAY CAPITAL MANAGEMENT, LLC	99,700	0.50%	$962K	+31,800 (+46.8%)
36	O'SHAUGHNESSY ASSET MANAGEMENT, LLC	89,906	0.45%	$868K	+50,318 (+127.1%)
37	Connor, Clark & Lunn Investment Management Ltd.	83,207	0.42%	$803K	+11,846 (+16.6%)
38	Ancora Advisors LLC	80,661	0.40%	$778K	—
39	MORGAN STANLEY	71,834	0.36%	$693K	-16,574 (-18.7%)
40	CM WEALTH ADVISORS LLC	64,807	0.33%	$625K	NEW
41	RITHOLTZ WEALTH MANAGEMENT	64,187	0.32%	$619K	+28,317 (+78.9%)
42	AMERIPRISE FINANCIAL INC	60,734	0.30%	$586K	-67,136 (-52.5%)
43	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	57,584	0.29%	$556K	+46,866 (+437.3%)
44	MARSHALL WACE, LLP	57,257	0.29%	$553K	-207,952 (-78.4%)
45	ARS Investment Partners, LLC	52,471	0.26%	$506K	+3,656 (+7.5%)
46	BNP PARIBAS FINANCIAL MARKETS	49,309	0.25%	$476K	-61,289 (-55.4%)
47	Integrated Quantitative Investments LLC	41,484	0.21%	$400K	—
48	CANADA PENSION PLAN INVESTMENT BOARD	31,400	0.16%	$303K	—
49	WINTON GROUP Ltd	31,067	0.16%	$300K	NEW
50	OCCUDO QUANTITATIVE STRATEGIES LP	31,012	0.16%	$299K	+17,801 (+134.7%)
51	LOS ANGELES CAPITAL MANAGEMENT LLC	29,396	0.15%	$284K	NEW
52	FMR LLC	28,968	0.15%	$280K	+2,843 (+10.9%)
53	HSBC HOLDINGS PLC	28,360	0.14%	$276K	-1,737 (-5.8%)
54	XTX Topco Ltd	27,235	0.14%	$263K	-5,509 (-16.8%)
55	Qube Research & Technologies Ltd	26,173	0.13%	$253K	-50,715 (-66.0%)
56	Nuveen, LLC	25,879	0.13%	$250K	NEW
57	SALEM INVESTMENT COUNSELORS INC	22,417	0.11%	$216K	—
58	Rothschild Wealth LLC	21,800	0.11%	$210K	—
59	HighTower Advisors, LLC	21,061	0.11%	$203K	—
60	Carrera Capital Advisors	20,238	0.10%	$195K	—
61	DEUTSCHE BANK AG\	19,192	0.10%	$185K	NEW
62	RHUMBLINE ADVISERS	19,159	0.10%	$185K	NEW
63	Catalyst Funds Management Pty Ltd	18,400	0.09%	$178K	-11,800 (-39.1%)
64	WELLS FARGO & COMPANY/MN	17,588	0.09%	$170K	NEW
65	PRICE T ROWE ASSOCIATES INC /MD/	15,816	0.08%	$153K	NEW
66	Invesco Ltd.	15,796	0.08%	$152K	NEW
67	GK Wealth Management LLC	13,804	0.07%	$133K	NEW
68	BANK OF AMERICA CORP /DE/	13,691	0.07%	$132K	-16,463 (-54.6%)
69	LAZARD ASSET MANAGEMENT LLC	13,259	0.07%	$128K	NEW
70	COMMERCE BANK	12,500	0.06%	$121K	—
71	UBS Group AG	12,189	0.06%	$118K	-14,236 (-53.9%)
72	MetLife Investment Management, LLC	11,647	0.06%	$112K	NEW
73	Schonfeld Strategic Advisors LLC	10,323	0.05%	$100K	-963 (-8.5%)
74	AXQ CAPITAL, LP	10,154	0.05%	$98K	NEW
75	CITIGROUP INC	9,090	0.05%	$88K	-7,780 (-46.1%)
76	JPMORGAN CHASE & CO	9,078	0.05%	$90K	-818 (-8.3%)
77	BARCLAYS PLC	9,000	0.05%	$87K	-14,286 (-61.4%)
78	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	8,878	0.04%	$86K	NEW
79	Vanguard Global Advisers, LLC	7,876	0.04%	$76K	—
80	US BANCORP \DE\	7,150	0.04%	$69K	—
81	NEW YORK STATE COMMON RETIREMENT FUND	6,000	0.03%	$58K	NEW
82	Police & Firemen's Retirement System of New Jersey	5,687	0.03%	$55K	NEW
83	Tower Research Capital LLC (TRC)	3,186	0.02%	$31K	NEW
84	ROYAL BANK OF CANADA	2,925	0.01%	$28K	+254 (+9.5%)
85	HighMark Wealth Management LLC	2,800	0.01%	$27K	—
86	BARD ASSOCIATES INC	2,500	0.01%	$24K	—
87	Legal & General Group Plc	1,879	0.01%	$18K	NEW
88	Ameritas Investment Partners, Inc.	1,750	0.01%	$17K	NEW
89	NewEdge Advisors, LLC	1,274	0.01%	$12K	NEW
90	Community Bank, N.A.	1,000	0.01%	$10K	—
91	Smartleaf Asset Management LLC	516	0.00%	$5K	—
92	CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	266	0.00%	$3K	NEW
93	OSAIC HOLDINGS, INC.	250	0.00%	$2K	NEW
94	Global Retirement Partners, LLC	154	0.00%	$1K	NEW
95	NISA INVESTMENT ADVISORS, LLC	141	0.00%	$1K	—
96	Sterling Capital Management LLC	68	0.00%	$656	NEW
97	GAMMA Investing LLC	26	0.00%	$251	—
98	SBI Securities Co., Ltd.	11	0.00%	$106	—
99	Strategic Wealth Partners, Ltd.	9	0.00%	$87	—
100	Caitong International Asset Management Co., Ltd	2	0.00%	$19	NEW

Exited since 2026-03-31 (23 filers; largest 23 shown)

MILLENNIUM MANAGEMENT LLC	−354,559
ESSEX INVESTMENT MANAGEMENT CO LLC	−299,332
SUSQUEHANNA INTERNATIONAL GROUP, LLP	−234,331
AWM Investment Company, Inc.	−201,077
JANE STREET GROUP, LLC	−127,307
SEI INVESTMENTS CO	−104,757
683 Capital Management, LLC	−100,465
Legato Capital Management LLC	−93,768
GLOBEFLEX CAPITAL L P	−79,961
MANGROVE PARTNERS IM, LLC	−74,061
Point72 Asset Management, L.P.	−51,026
Hudson Bay Capital Management LP	−32,385
BAILARD, INC.	−29,700
TOTH FINANCIAL ADVISORY CORP	−25,000
ALGERT GLOBAL LLC	−22,519
Jump Financial, LLC	−17,133
Brevan Howard Capital Management LP	−14,040
OMERS ADMINISTRATION Corp	−12,900
Squarepoint Ops LLC	−12,862
Jain Global LLC	−12,838
Redhawk Wealth Advisors, Inc.	−10,230
Intentional Wealth Strategies, LLC	−225
CWM, LLC	−15

Large holders from 13D/13G (latest per reporting person, last 2 years)

Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.

Reporting person	Form	Filed	Event	Shares	% of class
BlackRock, Inc.	SCHEDULE 13G	2026-07-28	2026-06-30	1,286,129	6.4%
COHEN DAVID P	SCHEDULE 13G/A	2026-02-17	2025-12-31	1,078,731	5.3%
Minerva Advisors LLC	SCHEDULE 13G/A	2026-02-17	2025-12-31	1,078,731	5.3%
MINERVA GP, INC.	SCHEDULE 13G/A	2026-02-17	2025-12-31	764,517	3.8%
MINERVA GP, LP	SCHEDULE 13G/A	2026-02-17	2025-12-31	764,517	3.8%
MINERVA GROUP LP	SCHEDULE 13G/A	2026-02-17	2025-12-31	764,517	3.8%
AWM Investment Company, Inc.	SCHEDULE 13G/A	2025-11-13	2025-09-30	561,656	2.8%
The Vanguard Group	SCHEDULE 13G/A	2025-07-29	2025-06-30	957,638	4.56%
Christopher Sansone	SCHEDULE 13D/A	2025-01-22	2025-01-21	997,643	4.7%
Sansone Advisors, LLC	SCHEDULE 13D/A	2025-01-22	2025-01-21	939,294	4.4%
Sansone Capital Management, LLC	SCHEDULE 13D/A	2025-01-22	2025-01-21	939,294	4.4%

Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.