# BLONDER TONGUE LABS INC (BDRLQ)

> Institutional ownership reported to the SEC as of Q1 2022, from Form 13F filings. Source: https://holderbook.com/stocks/BDRLQ/

- Reporting holders: 9
- Reported value: $391.0K
- 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 |
|---|---|---|---|---|
| [Tufton Capital Management](https://holderbook.com/funds/1055963-tufton-capital-management/) | $120.0K | 188,940 | 0.0% | 5 |
| [RENAISSANCE TECHNOLOGIES LLC](https://holderbook.com/funds/1037389-renaissance-technologies-llc/) | $64.0K | 99,449 | 0.0% | 14 |
| [BRIDGEWAY CAPITAL MANAGEMENT, LLC](https://holderbook.com/funds/1107261-bridgeway-capital-management-llc/) | $58.0K | 90,000 | 0.0% | 14 |
| [VANGUARD GROUP INC](https://holderbook.com/funds/102909-vanguard-group-inc/) | $52.0K | 81,448 | 0.0% | 14 |
| [STATE STREET CORP](https://holderbook.com/funds/93751-state-street-corp/) | $42.0K | 65,600 | 0.0% | 4 |
| [Virtu Financial LLC](https://holderbook.com/funds/1533964-virtu-financial-llc/) | $32.0K | 49,857 | 0.0% | 2 |
| [CITADEL ADVISORS LLC](https://holderbook.com/funds/1423053-citadel-advisors-llc/) | $14.0K | 21,786 | 0.0% | 1 |
| [UBS Group AG](https://holderbook.com/funds/1610520-ubs-group-ag/) | $6.0K | 9,435 | 0.0% | 4 |
| [Tower Research Capital LLC (TRC)](https://holderbook.com/funds/1533421-tower-research-capital-llc-trc/) | $3.0K | 5,127 | 0.0% | 2 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q1 2022 | 9 | $391.0K |
| Q4 2021 | 8 | $364.0K |
| Q3 2021 | 6 | $505.0K |
| Q2 2021 | 10 | $941.0K |
| Q1 2021 | 6 | $638.0K |
| Q4 2020 | 8 | $622.0K |
| Q3 2020 | 7 | $465.0K |
| Q2 2020 | 5 | $290.0K |
| Q1 2020 | 6 | $272.0K |
| Q4 2019 | 7 | $332.0K |
| Q3 2019 | 7 | $280.0K |
| Q2 2019 | 7 | $480.0K |