NEPH
Nephros IncNASDAQ
Healthcare • Medical Instruments & Supplies
Factor tilt: Micro-Cap Blend
$2.79-9.71%
Close Nov 6, 2026
- Market cap
- $31M
- 1 month
- -15.2%
- 3 months
- -36.3%
- 1 year
- -51.0%
- 52-week range
- $2.78$5.79
- Dividend
- No dividends on record
- Short interest
- 0.2% of float15.4K shares · settled Oct 15, 2026 · -39.0% since Sep 30, 2026 · FINRA
Fundamentals · trailing 12 months to Jun 30, 2026
- Revenue
- $20.72M
- Net income
- $1.74M
- Free cash flow
- -$661K
- Book value
- $11.97M
- Total debt
- $872K
- P/E
- 17.9×
- Price / sales
- 1.5×
- Price / book
- 2.6×
- FCF yield
- -2.1%
- Net margin
- +8.4%
EODHD (TTM) · as of Nov 6, 2026
End-of-day close from stored market data, not a live quote.
About Nephros Inc
Nephros, Inc., a commercial-stage company, develops and sells water filtration solutions for medical and commercial applications in the United States.
Read more
It offers ultrafiltration products that are used in dialysis centers for the removal of biological contaminants from water and bicarbonate concentrate; and in hospitals for the prevention of infection from waterborne pathogens, such as legionella and pseudomonas, as well as in foodservice and hospitality, and other healthcare facilities. The company also manufactures and sells water filters that enhance the taste and odor of water; reduce biofilm and scale build-up; and remove cysts, particulates, and lead from water systems. It markets its products to food service and hospitality sectors including quick-service restaurants, convenience stores, and restaurants. The company was incorporated in 1997 and is headquartered in South Orange, New Jersey.
- Website
- nephros.com
- Headquarters
- South Orange, NJ, United States
- Employees
- 36
- Listed
- Sep 21, 2004
- Fiscal year ends
- December
Company profile from EODHD, stored Oct 26, 2026.
Quarterly results
The last 8 fiscal quarters as reported (EODHD). Year over year compares the same quarter a year earlier.
| Quarter | Revenue | YoY | Gross margin | Op. income | Net income |
|---|---|---|---|---|---|
| Jun 2026filed Aug 10, 2026 | $6.0M | +36.2% | 66.4% | $1.2M | $1.2M |
| Mar 2026filed May 7, 2026 | $5.2M | +6.9% | 56.9% | $97.0K | $140.0K |
| Dec 2025filed Mar 12, 2026 | $4.7M | +22.2% | 55.4% | $18.0K | $62.0K |
| Sep 2025filed Nov 6, 2025 | $4.8M | +35.4% | 61.2% | $314.0K | $337.0K |
| Jun 2025filed Aug 7, 2025 | $4.4M | +35.9% | 63.2% | $248.0K | $237.0K |
| Mar 2025filed May 15, 2025 | $4.9M | +38.5% | 64.7% | $566.0K | $558.0K |
| Dec 2024filed Mar 24, 2025 | $3.9M | +18.9% | 64.0% | $317.0K | $349.0K |
| Sep 2024filed Nov 14, 2024 | $3.5M | -6.0% | 61.1% | $206.0K | $183.0K |
Fiscal years · last 6
| Fiscal year | Revenue | YoY | Gross margin | Op. income | Net income |
|---|---|---|---|---|---|
| Dec 2025filed Mar 12, 2026 | $18.8M | +32.7% | 61.1% | $1.1M | $1.2M |
| Dec 2024filed Mar 24, 2025 | $14.2M | -0.5% | 61.6% | $6.0K | $74.0K |
| Dec 2023filed Mar 15, 2024 | $14.2M | +42.7% | 59.0% | -$1.6M | -$1.6M |
| Dec 2022filed Mar 23, 2023 | $10.0M | -2.4% | 47.4% | -$4.3M | -$7.4M |
| Dec 2021filed Mar 3, 2022 | $10.2M | +19.3% | 55.1% | -$3.3M | -$4.1M |
| Dec 2020filed Mar 1, 2021 | $8.6M | -17.2% | 57.4% | -$4.3M | -$4.8M |
Short-interest history
FINRA reports open short positions for a settlement date. The publication date is later. These are reported positions, with a separate date for each observation.
Compare the reported short exposure around the dates you bought, sold or watched NEPH. A long position benefits from price rises; a short position benefits from falls. A change in these counts does not predict either move.
Settlement Oct 15, 2026
15,442 shares short
-9,860 shares (-39%) vs Sep 30, 2026
0.2% of the stored float. Published Oct 26, 2026.
Settlement Sep 30, 2026
25,302 shares short
-21,098 shares (-45.5%) vs Sep 15, 2026
0.3% of the stored float. Published Oct 9, 2026.
Settlement Sep 15, 2026
46,400 shares short
+5,433 shares (+13.3%) vs Aug 31, 2026
0.5% of the stored float. Published Sep 24, 2026.
Settlement Aug 31, 2026
40,967 shares short
-3,796 shares (-8.5%) vs Aug 14, 2026
0.5% of the stored float. Published Sep 10, 2026.
Settlement Aug 14, 2026
44,763 shares short
+7,270 shares (+19.4%) vs Jul 31, 2026
Share of float unavailable. Published Aug 25, 2026.
Settlement Jul 31, 2026
37,493 shares short
+6,157 shares (+19.6%) vs Jul 15, 2026
Share of float unavailable. Published Aug 11, 2026.
Change = this settlement’s shares short − the previous recorded settlement’s shares short; percentage change divides by that earlier count. A zero earlier count has no percentage change. Split-spanning counts are left uncompared. Float percentages use the stored settlement observation, not today’s float.
Source: stored FINRA equity short-interest records, up to six settlements from the last 240 days. FINRA data and reporting dates · How to read short interest
Dividends and stock splits
See the recorded cash amounts and dates behind NEPH’s income, and the splits that change its share count. Dates below are stored event records, not confirmation of a payment to your account.
Cash-dividend records
No qualified cash-dividend records are stored. This does not establish that the company pays no dividend.
Up to six Polygon cash-dividend events, including recorded ex-dates within the next 120 days. Amounts retain their recorded currency and decimal precision. Historical amounts are not restated to a common split basis, annualized, or converted to dollars.
For a long holding, compare the ex-date with when you held the shares and check the pay date against your broker’s cash history. Owning the stock today does not establish past entitlement. For a short holding, a dividend can create a payment obligation to the share lender.
Ex-dates and special dividend rules · Short-sale dividend obligations · Dividend data definitions
Split history
1 for 9 · reverse split
Effective Jul 10, 2019
Each 9 pre-split shares become 1 post-split share.
Source: EODHD
1 for 20 · reverse split
Effective Mar 17, 2011
Each 20 pre-split shares become 1 post-split share.
Source: EODHD
Up to six stored split dates through Nov 7, 2026. Equivalent vendor ratios are combined; conflicting ratios are left out. This history may be incomplete.
A split changes the share count and per-share price basis; it does not by itself add investment value. Put your holding’s earlier and later share counts on the same basis before comparing them. This applies to both long shares and shares owed on a short position.
How stock splits workPortfolio context
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Smart money context
Holder IQ: HIGH
7 smart-money holders: institutions with a high Holder IQ
Q2 2026, filed Sep 22, 2026
Insider context
Sentiment: unknown
No recent insider trades detected.
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What it means for you
Sign in to read your holdings or watchlist context. No personal position or direction is inferred.
What happened
No directional recent-activity label is available. This context label is separate from the scored insider signal read.
Why it can matter
A count of reported activity describes a sample, not purchase conviction, an insider’s intent or a future price move. Neutral is not an all-clear, and absent direction is not neutral evidence.
How we got this
The current context rule reads at most 50 nonduplicate issuer/share-class records filed in the last 90 days. It counts a bullish direction or purchase code P toward bullish, and a bearish direction or sale code S toward bearish. A side must exceed the opposite count by more than two to set its label; otherwise nonzero directional counts produce neutral. Calculation unavailable for this saved label: its counts, exact records, as-of time and rule version are not supplied here. Do not substitute the separate scored read’s different window or denominator.
Where the data comes from
Stored SEC Forms 3/4/5 insider-signal records, ordered by filing date with amendment duplicates excluded. Filing date is not transaction date. The last-trade line locates recent reported activity; it does not date or reconstruct the complete count.
Red flags: 1
Read the insider context evidence
What it means for you
Sign in to read your holdings or watchlist context. No personal position or direction is inferred.
What happened
No directional recent-activity label is available. This context label is separate from the scored insider signal read.
Why it can matter
A count of reported activity describes a sample, not purchase conviction, an insider’s intent or a future price move. Neutral is not an all-clear, and absent direction is not neutral evidence.
How we got this
The current context rule reads at most 50 nonduplicate issuer/share-class records filed in the last 90 days. It counts a bullish direction or purchase code P toward bullish, and a bearish direction or sale code S toward bearish. A side must exceed the opposite count by more than two to set its label; otherwise nonzero directional counts produce neutral. Calculation unavailable for this saved label: its counts, exact records, as-of time and rule version are not supplied here. Do not substitute the separate scored read’s different window or denominator.
Where the data comes from
Stored SEC Forms 3/4/5 insider-signal records, ordered by filing date with amendment duplicates excluded. Filing date is not transaction date. The last-trade line locates recent reported activity; it does not date or reconstruct the complete count.
Largest 13-F holders · Q2 2026
33 filers reported a long position in NEPH for Q2 2026. 13-F holdings are filed up to 45 days after the quarter ends.
The top 10 hold
93.7%
of the 5.3M shares 13-F filers reported
Moves vs Q1 2026
1 added5 trimmed
4 unchanged
Net shares held
-2.3%
across the 10 holders with a comparable Q1 2026 book
| Rank | Holder | Value | Shares | Shares vs Q1 2026 |
|---|---|---|---|---|
| 1 | WEXFORD CAPITAL LP | $12.9M · 3.6M shares | 3.6M | Unchanged |
| 2 | Topline Capital Management, LLC | $1.9M · 535.7K shares | 535.7K | -8% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | $709.2K · 198.6K shares | 198.6K | Unchanged |
| 4 | MORGAN STANLEY | $460.2K · 128.9K shares | 128.9K | +16.2% |
| 5 | Cornerstone Capital, Inc. | $459.5K · 128.7K shares | 128.7K | Unchanged |
| 6 | BARD ASSOCIATES INC | $421.3K · 118K shares | 118K | -2.6% |
| 7 | RENAISSANCE TECHNOLOGIES LLC | $276.7K · 77.5K shares | 77.5K | -22% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | $250.9K · 70.3K shares | 70.3K | -3.7% |
| 9 | Mesirow Financial Investment Management, Inc. | $214.2K · 60K shares | 60K | -50% |
| 10 | HighTower Advisors, LLC | $213.2K · 59.7K shares | 59.7K | Unchanged |
Sign in to see each holder’s Holder IQ, factor-adjusted Holder IQ and rank, and compare these holders with all scored filers. Available on every plan.
Sign in5% holder filings (13D / 13G)
Holders of more than 5% of NEPH file with the SEC within days. A 13D holder may seek to influence the company; a 13G holder is passive. Each holder’s latest filing from the last three years.
| Filed | Holder | % of class |
|---|---|---|
| Sep 16, 2026 | WEXFORD CAPITAL LP13D · activist · amended | 2.06%under 5% |
| Sep 16, 2026 | DAVIDSON CHARLES E13G · passive | 5.68% |
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