Filed: 11/12/2025ACC: 0001941040-25-000623
📋 What this filing means
NIERENBERG INVESTMENT MANAGEMENT COMPANY, LLC filed this quarterly 13F‑HR report disclosing 50 equity positions with a total reported market value of $234.00M. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
50
Positions
$234.00M
Total AUM (reported)
10.20M
Total Shares
Allocation by class
COM$165.13M70.6%
CL A COM$17.91M7.7%
TR UNIT$16.65M7.1%
UNIT SER 1$10.27M4.4%
SPONS ADS$9.60M4.1%
CL A$4.55M1.9%
COM CL A$3.86M1.6%
Portfolio Concentration
Top 3$106.59M45.6%
4–10$76.79M32.8%
11–25$39.56M16.9%
Rest$11.06M4.7%
Top 3 weight
45.6%
Top 10 weight
78.4%
Voting Authority Distribution
Total shares with voting rights: 10.20M
Sole
Full voting authority
1.10M
shares
% of voting shares10.8%
Shared
Joint voting authority
9.10M
shares
% of voting shares89.2%
None
No voting authority
0.00
shares
% of voting shares0.0%
Investment Discretion (by position count)
Sole50
Shared0
Other0
Dominant voting typeShared · 89.2% of voting shares
Institutional Holdings50
Rows:
POTBELLY CORP
SOLEShares2.98M
TypeSH
Market value$50.79M
21.70%
Sole
0.00
Shared
2.98M
None
0.00
EQT CORP
SOLEShares536.69K
TypeSH
Market value$29.21M
12.48%
Sole
0.00
Shared
536.69K
None
0.00
MR COOPER GROUP INC
SOLEShares126.12K
TypeSH
Market value$26.59M
11.36%
Sole
0.00
Shared
126.12K
None
0.00
LYFT INC
SOLEShares813.55K
TypeSH
Market value$17.91M
7.65%
Sole
0.00
Shared
813.55K
None
0.00
SPDR S&P 500 ETF TR
SOLEShares25K
TypeSH
Market value$16.65M
7.12%
Sole
25K
Shared
0.00
None
0.00
RIVERVIEW BANCORP INC
SOLEShares2.03M
TypeSH
Market value$10.92M
4.67%
Sole
0.00
Shared
2.03M
None
0.00
INVESCO QQQ TR
SOLEShares17.10K
TypeSH
Market value$10.27M
4.39%
Sole
17.10K
Shared
0.00
None
0.00
CRITEO S A
SOLEShares424.96K
TypeSH
Market value$9.60M
4.10%
Sole
0.00
Shared
424.96K
None
0.00
GE VERNOVA INC
SOLEShares11.20K
TypeSH
Market value$6.89M
2.94%
Sole
11.20K
Shared
0.00
None
0.00
GREEN DOT CORP
SOLEShares339.11K
TypeSH
Market value$4.55M
1.95%
Sole
0.00
Shared
339.11K
None
0.00
NVIDIA CORPORATION
SOLEShares22.80K
TypeSH
Market value$4.25M
1.82%
Sole
22.80K
Shared
0.00
None
0.00
BROOKDALE SR LIVING INC
SOLEShares410.11K
TypeSH
Market value$3.47M
1.48%
Sole
0.00
Shared
410.11K
None
0.00
BROADCOM INC
SOLEShares10.20K
TypeSH
Market value$3.37M
1.44%
Sole
10.20K
Shared
0.00
None
0.00
ADTRAN HOLDINGS INC
SOLEShares343.11K
TypeSH
Market value$3.22M
1.38%
Sole
0.00
Shared
343.11K
None
0.00
VERTIV HOLDINGS CO
SOLEShares21.20K
TypeSH
Market value$3.20M
1.37%
Sole
21.20K
Shared
0.00
None
0.00
EXPAND ENERGY CORPORATION
SOLEShares29.55K
TypeSH
Market value$3.14M
1.34%
Sole
29.55K
Shared
0.00
None
0.00
ARISTA NETWORKS INC
SOLEShares18.60K
TypeSH
Market value$2.71M
1.16%
Sole
18.60K
Shared
0.00
None
0.00
KBR INC
SOLEShares53.71K
TypeSH
Market value$2.54M
1.09%
Sole
0.00
Shared
53.71K
None
0.00
CONSTELLATION ENERGY CORP
SOLEShares7.10K
TypeSH
Market value$2.34M
1.00%
Sole
7.10K
Shared
0.00
None
0.00
CONCENTRIX CORP
SOLEShares50.48K
TypeSH
Market value$2.33M
1.00%
Sole
0.00
Shared
50.48K
None
0.00
DIVERSIFIED HEALTHCARE TR
SOLEShares456.11K
TypeSH
Market value$2.01M
0.86%
Sole
0.00
Shared
456.11K
None
0.00
ECOVYST INC
SOLEShares228.81K
TypeSH
Market value$2.00M
0.86%
Sole
0.00
Shared
228.81K
None
0.00
MATCH GROUP INC NEW
SOLEShares56.68K
TypeSH
Market value$2.00M
0.86%
Sole
0.00
Shared
56.68K
None
0.00
TUTOR PERINI CORP
SOLEShares24.68K
TypeSH
Market value$1.62M
0.69%
Sole
0.00
Shared
24.68K
None
0.00
DXC TECHNOLOGY CO
SOLEShares99.56K
TypeSH
Market value$1.36M
0.58%
Sole
99.56K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
POTBELLY CORPSOLE | COM | 2.98M | SH | $50.79M 21.70% | 0.00 | 2.98M | 0.00 |
EQT CORPSOLE | COM | 536.69K | SH | $29.21M 12.48% | 0.00 | 536.69K | 0.00 |
MR COOPER GROUP INCSOLE | COM | 126.12K | SH | $26.59M 11.36% | 0.00 | 126.12K | 0.00 |
LYFT INCSOLE | CL A COM | 813.55K | SH | $17.91M 7.65% | 0.00 | 813.55K | 0.00 |
SPDR S&P 500 ETF TRSOLE | TR UNIT | 25K | SH | $16.65M 7.12% | 25K | 0.00 | 0.00 |
RIVERVIEW BANCORP INCSOLE | COM | 2.03M | SH | $10.92M 4.67% | 0.00 | 2.03M | 0.00 |
INVESCO QQQ TRSOLE | UNIT SER 1 | 17.10K | SH | $10.27M 4.39% | 17.10K | 0.00 | 0.00 |
CRITEO S ASOLE | SPONS ADS | 424.96K | SH | $9.60M 4.10% | 0.00 | 424.96K | 0.00 |
GE VERNOVA INCSOLE | COM | 11.20K | SH | $6.89M 2.94% | 11.20K | 0.00 | 0.00 |
GREEN DOT CORPSOLE | CL A | 339.11K | SH | $4.55M 1.95% | 0.00 | 339.11K | 0.00 |
NVIDIA CORPORATIONSOLE | COM | 22.80K | SH | $4.25M 1.82% | 22.80K | 0.00 | 0.00 |
BROOKDALE SR LIVING INCSOLE | COM | 410.11K | SH | $3.47M 1.48% | 0.00 | 410.11K | 0.00 |
BROADCOM INCSOLE | COM | 10.20K | SH | $3.37M 1.44% | 10.20K | 0.00 | 0.00 |
ADTRAN HOLDINGS INCSOLE | COM | 343.11K | SH | $3.22M 1.38% | 0.00 | 343.11K | 0.00 |
VERTIV HOLDINGS COSOLE | COM CL A | 21.20K | SH | $3.20M 1.37% | 21.20K | 0.00 | 0.00 |
EXPAND ENERGY CORPORATIONSOLE | COM | 29.55K | SH | $3.14M 1.34% | 29.55K | 0.00 | 0.00 |
ARISTA NETWORKS INCSOLE | COM SHS | 18.60K | SH | $2.71M 1.16% | 18.60K | 0.00 | 0.00 |
KBR INCSOLE | COM | 53.71K | SH | $2.54M 1.09% | 0.00 | 53.71K | 0.00 |
CONSTELLATION ENERGY CORPSOLE | COM | 7.10K | SH | $2.34M 1.00% | 7.10K | 0.00 | 0.00 |
CONCENTRIX CORPSOLE | COM | 50.48K | SH | $2.33M 1.00% | 0.00 | 50.48K | 0.00 |
DIVERSIFIED HEALTHCARE TRSOLE | COM SH BEN INT | 456.11K | SH | $2.01M 0.86% | 0.00 | 456.11K | 0.00 |
ECOVYST INCSOLE | COM | 228.81K | SH | $2.00M 0.86% | 0.00 | 228.81K | 0.00 |
MATCH GROUP INC NEWSOLE | COM | 56.68K | SH | $2.00M 0.86% | 0.00 | 56.68K | 0.00 |
TUTOR PERINI CORPSOLE | COM | 24.68K | SH | $1.62M 0.69% | 0.00 | 24.68K | 0.00 |
DXC TECHNOLOGY COSOLE | COM | 99.56K | SH | $1.36M 0.58% | 99.56K | 0.00 | 0.00 |
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