undamentalytics Newsletter
Sign in

Nephros Inc: which funds bought and sold

Institutions that bought and sold Nephros shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 14 institutions that filed 13F reports for both quarters added to or opened positions in Nephros, and 10 cut or closed them. Together they sold a net 57K shares, −1.1% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 14K shares (−11.4%); index fund managers were net buyers of 22K shares (+6.6%). 7 opened a new position and 1 sold out entirely.

Bought, Q2 2026 14 institutions, 7 of them new holders Sold, Q2 2026 10 institutions, 1 of them sold out
Net change, all compared −57K shares (−1.1%)
Net change, active managers −14K shares (−11.4%), 2 bought, 1 sold

Buyers versus sellers

institutions compared, 34
Active managers and hedge funds 2 bought · 1 sold · −14K
Index fund managers 2 bought · 1 sold · +22K
Other institutions 10 bought · 8 sold · −65K

Biggest buyers

by change in shares held
Institution Change in shares Shares June 30, 2026 Value
Navellier & Associates Inc +34K +179.6% 53K $190,920
Blackrock, Inc. Index funds +19K New position 19K $67,195
Morgan Stanley +18K +16.2% 129K $460,227
Mercer Global Advisors Inc +13K New position 13K $44,625
Citadel Advisors LLC Hedge fund +8,156 +39.0% 29K $103,687
Northern Trust Corp Index funds +5,878 +54.3% 17K $59,640
Dimensional Fund Advisors LP +1,419 +6.8% 22K $79,126
UBS Group AG +831 New position 831 $2,967
Jones Financial Companies LLLP +196 +632.3% 227 $819
Sbi Securities Co., Ltd. +150 New position 150 $536
Northwestern Mutual Wealth Management Co +133 New position 133 $475
Royal Bank Of Canada +80 +10.7% 827 $3,000
Barclays PLC +27 New position 27 $96
FMR LLC Active manager +6 New position 6 $22

Biggest sellers

by change in shares held
Institution Change in shares Shares June 30, 2026 Value
Mesirow Financial Investment Management, Inc. −60K −50.0% 60K $214,200
Topline Capital Management, LLC −46K −8.0% 536K $1.9M
Renaissance Technologies LLC Hedge fund −22K −22.0% 78K $276,689
Prelude Capital Management, LLC −14K Sold out 0 —
De Lisle Partners LLP −7,600 −30.4% 17K $62,118
Bard Associates Inc −3,199 −2.6% 118K $421,271
Geode Capital Management, LLC Index funds −2,662 −3.7% 70K $250,916
Goldman Sachs Group Inc −1,327 −9.4% 13K $45,825
Elkhorn Partners Limited Partnership −1,000 −8.3% 11K $39,270
Essex Investment Management Co LLC −57 −0.1% 39K $138,969

New positions

largest by value
InstitutionSharesValue June 30, 2026
Blackrock, Inc.Index funds 19K $67,195
Mercer Global Advisors Inc 13K $44,625
UBS Group AG 831 $2,967
Sbi Securities Co., Ltd. 150 $536
Northwestern Mutual Wealth Management Co 133 $475
Barclays PLC 27 $96
FMR LLCActive manager 6 $22

Sold out

largest by value
InstitutionSharesValue March 31, 2026
Prelude Capital Management, LLC 14K $40,766

Who holds the shares

13F holdings at June 30, 2026
Institutions reporting
33
Ten largest holders
93.7%
of 13F-reported shares
Index fund managers
6.7%
of 13F-reported shares
Active managers and hedge funds
2.0%
of 13F-reported shares
Buying and selling by type of institution, March 31, 2026 to June 30, 2026
TypeBoughtSoldNewSold outNet change in sharesNet %
Active managers and hedge funds 2 1 1 0 −14K −11.4%
Index fund managers 2 1 1 0 +22K +6.6%
Other institutions 10 8 5 1 −65K −1.3%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

← Back to Nephros Inc · Insiders · Politicians