Comparable stake leader
Gem Investment Advisors, LLC
SEC ownership of PARKERVISION INC
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000914139.
Disclosed value leader
Lewis H. Titterton Jr.
Comparable rows
4/10
Latest evidence
19 May 2026
- Public ticker
- PRKR on OTC
- Parsed ownership sources
-
13D/G, 3/4/5, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Gem Investment Advisors, LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
4 of 10
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Gem Investment Advisors, LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
19 May 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000914139
- Issuer location
- Jacksonville, FL
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of PARKERVISION INC (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Gem Investment Advisors, LLC
Disclosed value leader
Lewis H. Titterton Jr.
Comparable rows
4/10
Latest evidence
19 May 2026
13D/G
3/4/5
13F
Lead comparable stake: 10%
6 rows are not safely comparable across share classes.
13D/G row: Gem Investment Advisors, LLC
Showing 1-8 of 10 holder rows.
Quick read
Gem Investment Advisors, LLC leads the comparable SEC ownership view at 10%.
4 of 10 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Gem Investment Advisors, LLC's linked filing trail.
Comparable ownership
Top 4
Gem Investment Advisors, LLC
10%
Lewis H. Titterton Jr.
7%
Anthony B. Bowers
0.13%
FNY Investment Advisers, LLC
0.03%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 10 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Gem Investment Advisors, LLC |
13D/G
Daniel M. Lewis
|
10%
|
—
15,181,550 shares
|
$0 | 31 Mar 2026 |
| Lewis H. Titterton Jr. |
13D/G
3/4/5
Titterton Lewis H jr · Director
|
7%
|
$2,560,535
8,829,430 shares
|
$0 | 17 Nov 2025 |
| Anthony B. Bowers |
3/4/5
Director
|
0.13%
|
$39,237
165,000 shares
|
— | 19 May 2026 |
| FNY Investment Advisers, LLC |
13F
Company
|
0.03%
|
$10,000
42,050 shares
|
— | 31 Mar 2026 |
| Jeffrey Parker |
3/4/5
Chief Executive Officer, Director
|
—
mixed-class rows
|
$1,920,000
16,000,000 shares
mixed-class rows
|
— | 22 Jan 2026 |
| Paul A. Rosenbaum |
3/4/5
Director
|
—
mixed-class rows
|
$921,370
2,504,796 shares
mixed-class rows
|
— | 22 Jan 2026 |
| FRENCH CYNTHIA L |
3/4/5
Chief Financial Officer
|
—
mixed-class rows
|
$261,656
1,166,583 shares
mixed-class rows
|
— | 22 Jan 2026 |
| Frank N. Newman |
3/4/5
Former Director
|
—
mixed-class rows
|
$172,904
983,100 shares
mixed-class rows
|
— | 24 Feb 2023 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to buying over the last 12 months. Net value: +$1,000,000.
Buys
$1,000,000
Insiders: 1
Sells
$0
Insiders: 0
Net
+$1,000,000
Shares: +4,761,905
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 4,761,905
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 4,761,905 | 0 | $1,000,000 | $0 | +$1,000,000 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-8 of 8 reporting-owner rows connected to PARKERVISION INC. Open a relationship link for the CIK-to-CIK filing trail.
Rows
8
Largest Forms 3/4/5 holder
Jeffrey Parker
Net 12M change
+$1,000,000
Latest report
19 May 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Jeffrey Parker | Chief Executive Officer, Director | $1,920,000 | Mixed | 22 Jan 2026 | ||
| Lewis H. Titterton Jr. | Director | $1,890,215 | +$1,000,000 | +112% | Mixed | 22 Jan 2026 |
| Paul A. Rosenbaum | Director | $921,370 | Mixed | 22 Jan 2026 | ||
| FRENCH CYNTHIA L | Chief Financial Officer | $261,656 | Mixed | 22 Jan 2026 | ||
| Frank N. Newman | Former Director | $172,904 | Mixed | 24 Feb 2023 | ||
| Robert G. Sterne | Director | $88,800 | Mixed | 22 Jan 2026 | ||
| Anthony B. Bowers | Director | $39,237 | Mixed | 19 May 2026 | ||
| Sanford M. Litvack | Director | $15,597 | Mixed | 31 Dec 2024 |
Recent insider transactions for PARKERVISION INC
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Lewis H. Titterton Jr. | PRKR | Option to Purchase Common Stock | Award | 370,000 | 370,000 | 22 Jan 2026 | Direct | |||
| Paul A. Rosenbaum | PRKR | Option to Purchase Common Stock | Award | 370,000 | 370,000 | 22 Jan 2026 | Direct | |||
| Robert G. Sterne | PRKR | Option to Purchase Common Stock | Award | 370,000 | 370,000 | 22 Jan 2026 | Direct | |||
| French Cynthia L | PRKR | Nonqualified Stock Option (Performance-Based) | Award | 500,000 | 500,000 | 22 Jan 2026 | Direct | |||
| French Cynthia L | PRKR | Nonqualified Stock Option | Award | 500,000 | 500,000 | 22 Jan 2026 | Direct | |||
| Jeffrey Parker | PRKR | Nonqualified Stock Option (Performance-Based) | Award | 8,000,000 | 8,000,000 | 22 Jan 2026 | Direct | |||
| Lewis H. Titterton Jr. | PRKR | Common Stock | Purchase | 124.8% | $1,000,000 | $0.2100 | 4,761,905 | 8,578,170 | 18 Nov 2025 | Direct |
| Lewis H. Titterton Jr. | PRKR | Common Stock | Options Exercise | 26.5% | 800,000 | 3,816,265 | 07 Oct 2025 | Direct | ||
| Lewis H. Titterton Jr. | PRKR | Nonqualified Stock Option | Options Exercise | -100% | -800,000 | 0 | 07 Oct 2025 | Direct |
* marks a reported price that did not pass the local price check.