CMTL · Comtech Telecommunications Corp · Shareholders & Ownership

$1.24 +0.02 (+1.64%) At close · Oct 23

Market Cap

$37.37M

30.14M

Volume · Oct 23 182.41K Avg daily vol (3M) 324.66K

Every disclosed holder of CMTL 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 CMTL

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

No chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.

Holder group	Holders	Shares	% Out	Summed
Institutional (13F)	78	12,999,581	43.13%	Yes
Insiders (Forms 3, 4, 5)	10	595,049	1.97%	Yes
13D/G-only blocks	4	30,254,850	100.39%	Yes
Remaining	—	13,712,214	-45.50%	Negative
Registered funds (N-PORT, not summed)	42	3,282,625	10.89%	No

Shares outstanding: 30,137,266, the issuer's latest cover-page count restated onto today's split basis.

Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.

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 CMTL

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	Magnetar Financial LLC 13D CIK 1352851 · Registered investment adviser · Jun 14, 2026	22,402,628	74.34%	+1,446,639	Jun 14, 2026
2	White Hat Capital Partners LP 13D CIK 2005699 · Unknown · Jun 14, 2026 Item 4 purpose: Other	5,056,520	16.78%	+304,066	Jun 14, 2026
3	QVT Financial LP 13F CIK 1290162 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,676,031	5.56%	-18,436	Jun 30, 2026	carried, not yet filed for the newest quarter
4	Needham Investment Management L.L.C. 13G CIK 1208854 · Unknown · Sep 30, 2024 Rule 13d-1(b), qualified institution	1,502,500	4.99%	—	Sep 30, 2024	Rule 13d-1(b), qualified institution
5	VANGUARD CAPITAL MANAGEMENT LLC 13F CIK 2100119 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,306,904	4.34%	+112,576	Jun 30, 2026	carried, not yet filed for the newest quarter
5.1	VANGUARD CAPITAL MANAGEMENT LLC 13G CIK 2100119 · Registered investment adviser · Jun 30, 2026 Rule 13d-1(b), qualified institution, not summed	1,503,083	4.99%	—	Jun 30, 2026	Rule 13d-1(b), qualified institution, not summed
6	OLEG TIMOSHENKO 13D CIK 1210707 · Unknown · Nov 17, 2024	1,293,202	4.29%	0	Nov 17, 2024
7	Beacon Pointe Advisors, LLC 13F CIK 1744317 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,246,044	4.13%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
8	VANGUARD TOTAL STOCK MARKET INDEX FUND Fund S000002848 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	936,420	3.11%	+94,000	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
9	NEEDHAM INVESTMENT MANAGEMENT LLC 13F CIK 1167212 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	906,360	3.01%	-267,940	Jun 30, 2026	carried, not yet filed for the newest quarter
9.1	Needham Aggressive Growth Fund Fund S000003815 · Registered fund · Jun 30, 2026 Needham Funds Inc, not summed	764,625	2.54%	-254,875	Jun 30, 2026	Needham Funds Inc, not summed
9.2	Needham Small Cap Growth Fund Fund S000003816 · Registered fund · Jun 30, 2026 Needham Funds Inc, not summed	39,185	0.13%	-13,065	Jun 30, 2026	Needham Funds Inc, not summed
10	TCW GROUP INC 13F CIK 850401 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	726,806	2.41%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
11	MML INVESTORS SERVICES, LLC 13F CIK 701059 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	689,702	2.29%	+299,383	Jun 30, 2026	carried, not yet filed for the newest quarter
12	ACADIAN ASSET MANAGEMENT LLC 13F CIK 916542 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	599,792	1.99%	+196,527	Jun 30, 2026	carried, not yet filed for the newest quarter
13	MARSHALL WACE, LLP 13F CIK 1318757 · Exempt reporting adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	553,248	1.84%	-313,889	Jun 30, 2026	carried, not yet filed for the newest quarter
14	BlackRock, Inc. 13F CIK 2012383 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	505,956	1.68%	+22,071	Jun 30, 2026	carried, not yet filed for the newest quarter
14.1	iShares Micro-Cap ETF Fund S000004439 · Registered fund · Jun 30, 2026 iShares Trust, not summed	90,847	0.30%	+25,410	Jun 30, 2026	iShares Trust, not summed
15	JANE STREET GROUP, LLC 13F CIK 1595888 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	479,922	1.59%	+185,407	Jun 30, 2026	carried, not yet filed for the newest quarter
16	Pacific Ridge Capital Partners, LLC 13F CIK 1591546 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	460,052	1.53%	-3,732	Jun 30, 2026	carried, not yet filed for the newest quarter
17	DIMENSIONAL FUND ADVISORS LP 13F CIK 354204 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	441,544	1.47%	-51,559	Jun 30, 2026	carried, not yet filed for the newest quarter
17.1	Dimensional U.S. Small Cap ETF Fund S000070906 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	68,201	0.23%	-28,900	Jul 31, 2026	Dimensional ETF Trust, not summed
17.2	U.S. SMALL CAP PORTFOLIO Fund S000000971 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	50,389	0.17%	-26,078	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
17.3	U.S. MICRO CAP PORTFOLIO Fund S000000948 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	29,527	0.10%	+5,800	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
17.4	U.S. CORE EQUITY 1 PORTFOLIO Fund S000000979 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	14,395	0.05%	-28,505	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
17.5	Dimensional US Sustainability Core 1 ETF Fund S000076639 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	14,100	0.05%	0	Jul 31, 2026	Dimensional ETF Trust, not summed
18	GEODE CAPITAL MANAGEMENT, LLC 13F CIK 1214717 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	345,194	1.15%	-6,572	Jun 30, 2026	carried, not yet filed for the newest quarter
19	VANGUARD EXTENDED MARKET INDEX FUND Fund S000002841 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	335,218	1.11%	+18,576	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
20	RENAISSANCE TECHNOLOGIES LLC 13F CIK 1037389 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	332,500	1.10%	+96,851	Jun 30, 2026	carried, not yet filed for the newest quarter
21	VANGUARD FIDUCIARY TRUST CO 13F CIK 933478 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	185,453	0.62%	+11,551	Jun 30, 2026	carried, not yet filed for the newest quarter
22	Adara Smaller Companies Fund Fund S000047045 · Registered fund · May 31, 2026 RBB Fund, Inc., not summed	181,070	0.60%	0	May 31, 2026	RBB Fund, Inc., not summed
23	BRIDGEWAY CAPITAL MANAGEMENT, LLC 13F CIK 1107261 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	170,989	0.57%	+6,000	Jun 30, 2026	carried, not yet filed for the newest quarter
23.1	Ultra-Small Company Fund Fund S000004423 · Registered fund · Jun 30, 2026 Bridgeway Funds, Inc., not summed	126,989	0.42%	0	Jun 30, 2026	Bridgeway Funds, Inc., not summed
23.2	Ultra-Small Company Market Fund Fund S000004424 · Registered fund · Jun 30, 2026 Bridgeway Funds, Inc., not summed	38,000	0.13%	0	Jun 30, 2026	Bridgeway Funds, Inc., not summed
24	JACOBS LEVY EQUITY MANAGEMENT, INC 13F CIK 884414 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	163,046	0.54%	+111,116	Jun 30, 2026	carried, not yet filed for the newest quarter
25	ROYCE & ASSOCIATES LP 13F CIK 906304 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	162,953	0.54%	-1,553,145	Jun 30, 2026	carried, not yet filed for the newest quarter
25.1	ROYCE & ASSOCIATES LP 13G CIK 906304 · Registered investment adviser · Jun 30, 2026 Rule 13d-1(d), exempt investor, not summed	162,953	0.54%	-1,419,185	Jun 30, 2026	Rule 13d-1(d), exempt investor, not summed
25.2	Royce Small-Cap Opportunity Fund Fund S000009512 · Registered fund · Jun 30, 2026 ROYCE FUND, not summed	147,300	0.49%	-732,971	Jun 30, 2026	ROYCE FUND, not summed
26	BONDI MICHAEL Insider CIK 1274698 · Sep 30, 2026 Chief Financial Officer, issuer-wide	159,286	0.53%	+8,691	Sep 30, 2026	Chief Financial Officer, issuer-wide
27	TWO SIGMA INVESTMENTS, LP 13F CIK 1179392 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	156,059	0.52%	-220,032	Jun 30, 2026	carried, not yet filed for the newest quarter
28	XTX Topco Ltd 13F CIK 1828301 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	150,632	0.50%	+79,452	Jun 30, 2026	carried, not yet filed for the newest quarter
29	Mount Lucas Management LP 13F CIK 1185072 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	145,000	0.48%	-15,000	Jun 30, 2026	carried, not yet filed for the newest quarter
30	STATE STREET CORP 13F CIK 93751 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	138,737	0.46%	-500	Jun 30, 2026	carried, not yet filed for the newest quarter
31	GLOBEFLEX CAPITAL L P 13F CIK 921531 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	128,019	0.42%	-69,101	Jun 30, 2026	carried, not yet filed for the newest quarter
32	MILLENNIUM MANAGEMENT LLC 13F CIK 1273087 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	101,704	0.34%	-107,138	Jun 30, 2026	carried, not yet filed for the newest quarter
33	Graham Capital Management, L.P. 13F CIK 1315421 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	91,580	0.30%	+57,223	Jun 30, 2026	carried, not yet filed for the newest quarter
34	Walther Donald E. Insider CIK 1740119 · Sep 30, 2026 Chief Legal Officer, issuer-wide	77,015	0.26%	+10,500	Sep 30, 2026	Chief Legal Officer, issuer-wide
35	UBS Group AG 13F CIK 1610520 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	76,339	0.25%	-97,897	Jun 30, 2026	carried, not yet filed for the newest quarter
36	Hildebrandt Michael Insider CIK 2045481 · Mar 24, 2026 Director, issuer-wide	73,836	0.25%	+36,620	Mar 24, 2026	Director, issuer-wide
37	Robertson Jeffery Paul Insider CIK 2016680 · Sep 30, 2026 President, Allerium Segment, issuer-wide	68,366	0.23%	+2,409	Sep 30, 2026	President, Allerium Segment, issuer-wide
38	NORTHERN TRUST CORP 13F CIK 73124 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	67,339	0.22%	-14,626	Jun 30, 2026	carried, not yet filed for the newest quarter
39	Squarepoint Ops LLC 13F CIK 1642575 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	63,649	0.21%	+24,295	Jun 30, 2026	carried, not yet filed for the newest quarter
40	SUSQUEHANNA INTERNATIONAL GROUP, LLP 13F CIK 1446194 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	59,905	0.20%	-191,821	Jun 30, 2026	carried, not yet filed for the newest quarter
41	Integrated Quantitative Investments LLC 13F CIK 2046834 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	59,512	0.20%	+5,882	Jun 30, 2026	carried, not yet filed for the newest quarter
42	Traub Kenneth Insider CIK 1232602 · Jan 23, 2026 Director, Chairman, President and CEO, issuer-wide	58,440	0.19%	+32,206	Jan 23, 2026	Director, Chairman, President and CEO, issuer-wide
43	Virtu Financial LLC 13F CIK 1533964 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	56,078	0.19%	+56,078	Jun 30, 2026	carried, not yet filed for the newest quarter
44	CITADEL ADVISORS LLC 13F CIK 1423053 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	51,842	0.17%	-221,243	Jun 30, 2026	carried, not yet filed for the newest quarter
45	Connor, Clark & Lunn Investment Management Ltd. 13F CIK 1596800 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	44,774	0.15%	-12,476	Jun 30, 2026	carried, not yet filed for the newest quarter
46	ALGERT GLOBAL LLC 13F CIK 1275218 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	41,990	0.14%	+41,990	Jun 30, 2026	carried, not yet filed for the newest quarter
47	PRICE T ROWE ASSOCIATES INC /MD/ 13F CIK 80255 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	41,504	0.14%	+9,640	Jun 30, 2026	carried, not yet filed for the newest quarter
48	Schonfeld Strategic Advisors LLC 13F CIK 1665241 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	41,346	0.14%	+12,450	Jun 30, 2026	carried, not yet filed for the newest quarter
49	Cetera Investment Advisers 13F CIK 1666741 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	38,662	0.13%	-2,300	Jun 30, 2026	carried, not yet filed for the newest quarter
50	Gizinski Daniel Insider CIK 2034782 · Sep 30, 2026 President, S&S Comm. Segment, issuer-wide	38,563	0.13%	+4,882	Sep 30, 2026	President, S&S Comm. Segment, issuer-wide

7 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 111 holders

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Key facts CIK 23197 CUSIP 205826209 13F (30d) 5 filings 5 filers Visit website Investor relations