# COMMUNICATIONS SYS INC (JCS)

> Institutional ownership reported to the SEC as of Q4 2021, from Form 13F filings. Source: https://holderbook.com/stocks/JCS/

- Reporting holders: 21
- Reported value: $8.2M
- Held through calls: 0.0%
- Held through puts: 0.0%

A 13F reports long US equity positions only. Shorts, bonds, foreign listings and cash are not visible here, and positions are disclosed up to 45 days after the quarter ends.

## Largest holders

| Manager | Value | Shares | Share of their book | Quarters held |
|---|---|---|---|---|
| [GAMCO INVESTORS, INC. ET AL](https://holderbook.com/funds/807249-gamco-investors-inc-et-al/) | $1.9M | 786,324 | 0.0% | 13 |
| [RENAISSANCE TECHNOLOGIES LLC](https://holderbook.com/funds/1037389-renaissance-technologies-llc/) | $1.5M | 630,983 | 0.0% | 13 |
| [VANGUARD GROUP INC](https://holderbook.com/funds/102909-vanguard-group-inc/) | $965.0K | 401,922 | 0.0% | 13 |
| [DIMENSIONAL FUND ADVISORS LP](https://holderbook.com/funds/354204-dimensional-fund-advisors-lp/) | $919.0K | 382,938 | 0.0% | 13 |
| [Teton Advisors, Inc.](https://holderbook.com/funds/1444874-teton-advisors-inc/) | $822.0K | 342,600 | 0.1% | 8 |
| [GABELLI FUNDS LLC](https://holderbook.com/funds/1081407-gabelli-funds-llc/) | $713.0K | 297,200 | 0.0% | 13 |
| [BRIDGEWAY CAPITAL MANAGEMENT, LLC](https://holderbook.com/funds/1107261-bridgeway-capital-management-llc/) | $343.0K | 143,016 | 0.0% | 13 |
| [BlackRock Inc.](https://holderbook.com/funds/1364742-blackrock-inc/) | $336.0K | 139,805 | 0.0% | 13 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://holderbook.com/funds/1214717-geode-capital-management-llc/) | $168.0K | 70,063 | 0.0% | 13 |
| [MARSHALL WACE, LLP](https://holderbook.com/funds/1318757-marshall-wace-llp/) | $93.0K | 38,451 | 0.0% | 2 |
| [EPIQ PARTNERS, LLC](https://holderbook.com/funds/1799435-epiq-partners-llc/) | $86.0K | 35,718 | 0.0% | 2 |
| [JBF Capital, Inc.](https://holderbook.com/funds/1483864-jbf-capital-inc/) | $65.0K | 26,921 | 0.0% | 4 |
| [GOULD ASSET MANAGEMENT LLC /CA/](https://holderbook.com/funds/1091961-gould-asset-management-llc-ca/) | $54.0K | 22,491 | 0.0% | 13 |
| [MILLENNIUM MANAGEMENT LLC](https://holderbook.com/funds/1273087-millennium-management-llc/) | $50.0K | 20,828 | 0.0% | 1 |
| [NORTHERN TRUST CORP](https://holderbook.com/funds/73124-northern-trust-corp/) | $48.0K | 20,085 | 0.0% | 13 |
| [STATE STREET CORP](https://holderbook.com/funds/93751-state-street-corp/) | $44.0K | 18,308 | 0.0% | 3 |
| [COMMONWEALTH EQUITY SERVICES, LLC](https://holderbook.com/funds/312272-commonwealth-equity-services-llc/) | $26.0K | 11,177 | 0.0% | 1 |
| [MORGAN STANLEY](https://holderbook.com/funds/895421-morgan-stanley/) | $18.0K | 7,450 | 0.0% | 5 |
| [ROYAL BANK OF CANADA](https://holderbook.com/funds/1000275-royal-bank-of-canada/) | $12.0K | 5,000 | 0.0% | 1 |
| [HARBOUR INVESTMENTS, INC.](https://holderbook.com/funds/810121-harbour-investments-inc/) | $1.0K | 479 | 0.0% | 4 |
| [Tower Research Capital LLC (TRC)](https://holderbook.com/funds/1533421-tower-research-capital-llc-trc/) | $1.0K | 257 | 0.0% | 7 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q4 2021 | 21 | $8.2M |
| Q3 2021 | 25 | $35.5M |
| Q2 2021 | 24 | $31.2M |
| Q1 2021 | 27 | $25.9M |
| Q4 2020 | 24 | $18.9M |
| Q3 2020 | 27 | $16.2M |
| Q2 2020 | 28 | $22.1M |
| Q1 2020 | 26 | $17.8M |
| Q4 2019 | 30 | $19.8M |
| Q3 2019 | 23 | $11.9M |
| Q2 2019 | 26 | $7.5M |
| Q1 2019 | 25 | $6.5M |