Comtech Telecommunications Corp. (CMTL) Ownership

NASDAQ: CMTLTop holders, insider trades and short interest.

CMTL ownership summary

as of October 18, 2026
Institutions
45.5%
of shares outstanding
Insiders
2.73%
of shares outstanding
Shares outstanding
30.0M
Float
27.8M
shares available to trade
Short interest
1.13%
334K shares short
Days to cover
1.26
short interest down 21.7% vs prior month
  • Institutions 45.55%
  • Insiders 2.73%
  • Other investors 51.73%

CMTL top institutional holders

20 largest
Comtech Telecommunications Corp. top institutional holders
#Holder% of sharesSharesValueChangeReported
1Qvt Financial LP5.59%1.7M$2.3M−18,436 (−1.1%)June 30, 2026
2Vanguard Capital Management, LLC4.36%1.3M$1.8M+112,576 (+9.4%)June 30, 2026
3Beacon Pointe Advisors, LLC4.16%1.2M$1.7M—June 30, 2026
4Needham Investment Management, LLC3.03%906K$1.3M−267,940 (−22.8%)June 30, 2026
5TCW Group Inc2.43%727K$1.0M—June 30, 2026
6MML Investors Services Inc2.30%690K$958,686+299,383 (+76.7%)June 30, 2026
7Acadian Asset Management LLC2.00%600K$833,711+196,527 (+48.7%)June 30, 2026
8Marshall Wace Asset Management Ltd1.85%553K$769,015−313,889 (−36.2%)June 30, 2026
9BlackRock Inc1.69%506K$703,279+22,071 (+4.6%)June 30, 2026
10Jane Street Group LLC1.60%480K$667,092+185,407 (+63.0%)June 30, 2026
11Pacific Ridge Capital Partners, LLC1.54%460K$639,472−3,732 (−0.8%)June 30, 2026
12Dimensional Fund Advisors, Inc.1.47%442K$613,746−51,559 (−10.5%)June 30, 2026
13Geode Capital Management, LLC1.15%345K$479,820−6,572 (−1.9%)June 30, 2026
14Renaissance Technologies Corp1.11%332K$462,175+96,851 (+41.1%)June 30, 2026
15Vanguard Fiduciary Trust Co0.62%185K$257,780+11,551 (+6.6%)June 30, 2026
16Bridgeway Capital Management, LLC0.57%171K$237,675+6,000 (+3.6%)June 30, 2026
17Jacobs Levy Equity Management, Inc.0.54%163K$226,634+111,116 (+214.0%)June 30, 2026
18Royce & Associates, LP0.54%163K$226,505−1.6M (−90.5%)June 30, 2026
19Two Sigma Investments LLC0.52%156K$216,922−220,032 (−58.5%)June 30, 2026
20XTX Topco Ltd0.50%151K$209,378+79,452 (+111.6%)June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 10 holders added 1.1M shares and 8 cut 2.4M.

CMTL top mutual fund and ETF holders

19 largest
Comtech Telecommunications Corp. top fund holders
#Holder% of sharesSharesValueChangeReported
1Vanguard MStar Total Stk Mkt Idx Invest3.13%936K$1.3M—August 31, 2026
2Adara Smaller Companies0.60%181K$251,687—August 31, 2026
3Fidelity Extended Market Index0.57%171K$238,279+17,156 (+11.1%)August 31, 2026
4Bridgeway Ultra-Small Company0.42%127K$176,515—June 30, 2026
5iShares Micro-Cap ETF0.29%87K$120,459−598 (−0.7%)September 30, 2026
6Invesco NASDAQ Future Gen 200 ETF0.24%71K$98,587—September 30, 2026
7BSF Systematic US Eq Abs Ret A2 USD0.21%64K$88,857—December 31, 2025
8Fidelity Total Market Index0.19%58K$81,044—August 31, 2026
9Fidelity Series Total Market Index0.15%45K$62,054—August 31, 2026
10EA Bridgeway Ultra-Small Company Mkt ETF0.13%37K$52,097—September 30, 2026
11EA Bridgeway Omni Small-Cap Value ETF0.12%35K$48,650—September 30, 2026
12Procure Space ETF0.07%22K$30,676+129 (+0.6%)September 30, 2026
13Invesco RAFI US 1500 Small-Mid ETF0.07%21K$28,633—September 30, 2026
14Vanguard MStar Inst Ttl StkMktIdxInstlPl0.06%18K$24,627—August 31, 2026
15Vanguard Balanced Index Inv0.06%18K$24,393—August 31, 2026
16Dimensional US Sustainability Core 1 ETF0.05%14K$19,599—September 30, 2026
17Dimensional US Small Cap ETF0.04%13K$17,799—September 30, 2026
18Vanguard U.S. Eq Idx £ Acc0.04%11K$14,909—August 31, 2026
19Arrow Opportunities Alternative Series F0.03%10K$14,357—September 30, 2026

Funds report holdings monthly or quarterly; dates differ by fund.

CMTL insider transactions

latest 7
Comtech Telecommunications Corp. insider transactions
DateNameTransactionPriceSharesValue
2023-06-26Wendi B CarpenterBuy$9.601,000$9,600
2023-06-21Mark R QuinlanBuy$8.89100,000$889,000
2023-06-15Wendi B CarpenterBuy$9.201,000$9,200
2023-06-14Maria HeddenBuy$8.952,233$19,985
2023-06-13Donald E WaltherBuy$9.23500$4,615
2023-06-13Ken Allen PetermanBuy$9.325,400$50,328
2023-06-13Michael BondiBuy$9.295,000$46,450

Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.

CMTL shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns CMTL

Institutional investors own 45.5% of Comtech Telecommunications's shares and insiders 2.73%. The largest holder is Qvt Financial LP with 5.59% of the shares (1.7M), as of June 30, 2026. Among the top 20 institutions, 10 added shares and 8 reduced their stake in the latest filings. Short interest is 1.13% of the float, or 1.26 days of average trading volume. The share count rose 79.4% since 2014.

Related: CMTL analyst forecast, CMTL key metrics. See the CMTL stock overview for the latest quote and news.

CMTL ownership FAQ

Who owns the most Comtech Telecommunications stock?

The largest shareholders of Comtech Telecommunications are Qvt Financial LP (5.59%), Vanguard Capital Management, LLC (4.36%), Beacon Pointe Advisors, LLC (4.16%), Needham Investment Management, LLC (3.03%), TCW Group Inc (2.43%).

What percentage of Comtech Telecommunications is owned by institutions?

Institutions hold 45.5% of Comtech Telecommunications's shares outstanding; insiders hold 2.73%.

Which funds own Comtech Telecommunications?

The largest fund holders of Comtech Telecommunications are Vanguard MStar Total Stk Mkt Idx Invest (3.13%), Adara Smaller Companies (0.60%), Fidelity Extended Market Index (0.57%), Bridgeway Ultra-Small Company (0.42%), iShares Micro-Cap ETF (0.29%).

What is Comtech Telecommunications's short interest?

334K shares of Comtech Telecommunications were sold short, 1.13% of the float; at the average daily volume it would take 1.26 days to cover.

Are insiders buying or selling Comtech Telecommunications?

Of the latest 7 reported insider transactions in Comtech Telecommunications (since June 13, 2023), 7 were purchases and 0 were sales.

How many shares of Comtech Telecommunications are outstanding?

Comtech Telecommunications has 30.0M shares outstanding, of which 27.8M are in the public float.

Communication Equipment: ownership