Nierenberg Investment Management Company, Inc. Portfolio Holdings

Nierenberg Investment Management Company, Inc.

  • $222 Million
  • Q3 2025

Nierenberg Investment Management Company, Inc. has filed its 13F form on November 12, 2025 for Q3 2025 where it was disclosed a total value porftolio of $222 Million distributed in 52 stocks.

Among their holdings, we can observe that their the top five positions include companies like: Potbelly Corp with a value of $50.8M, Eqt Corp with a value of $29.2M, Mr. Cooper Group Inc. with a value of $26.6M, Lyft, Inc. with a value of $17.9M, and Riverview Bancorp Inc with a value of $10.9M.

Examining the 13F form we can see an increase of $40.1M in the current position value, from $181M to 222M.

Nierenberg Investment Management Company, Inc. is based out at Camas, WA

Below you can find more details about Nierenberg Investment Management Company, Inc. portfolio as well as his latest detailed transactions.

Portfolio value $222 Million
Consumer Cyclical: $51.4 Million
Financial Services: $42.9 Million
Energy: $35 Million
Technology: $33 Million
ETFs: $26.9 Million
Communication Services: $11.6 Million
Industrials: $9.82 Million
Healthcare: $4.6 Million
Other: $6.35 Million

Stock Holdings Table

Stock Market Cap. Holding Value (Reported) # of Shares. Last Trade Trade History
$491M
$50.8 Million 22.92% of portfolio
2,980,564
Q3 2024 Added 5.33%
$22B
$29.2 Million 13.18% of portfolio
536,693
Q3 2024 Added 5.5%
$14.9B
$26.6 Million 12.0% of portfolio
126,121
Q3 2025 Reduced 57.4%
$7.96B
$17.9 Million 8.08% of portfolio
813,555
Q3 2025 Added 1,811.77%
$122M
$10.9 Million 4.91% of portfolio
2,032,775
Q3 2025 Added 4.9%
$1.26B
$9.6 Million 4.33% of portfolio
424,959
Q3 2025 Reduced 20.67%
$583M
$4.55 Million 2.06% of portfolio
339,110
Q2 2025 Added 337.25%
$1.95B
$3.47 Million 1.57% of portfolio
410,110
Q1 2025 Added 156.14%
$578M
$3.22 Million 1.45% of portfolio
343,110
Q2 2025 Reduced 21.14%
$5.77B
$2.54 Million 1.15% of portfolio
53,710
Q1 2025 Added 5.92%
$1.82B
$2.33 Million 1.05% of portfolio
50,480
Q2 2025 Reduced 21.71%
$1.11B
$2.01 Million 0.91% of portfolio
456,110
Q2 2024 Reduced 2.35%
$1.17B
$2 Million 0.9% of portfolio
228,810
Q4 2024 Added 0.53%
$9.13B
$2 Million 0.9% of portfolio
56,680
Q2 2025 Reduced 0.96%
$3.03B
$1.62 Million 0.73% of portfolio
24,680
Q3 2025 Reduced 44.76%
$2.97B
$1.36 Million 0.61% of portfolio
99,555
Q3 2025 Added 634.45%
$10.1B
$1.11 Million 0.5% of portfolio
29,555
Q4 2023 Reduced 37.85%
$4.78B
$1.04 Million 0.47% of portfolio
286
Q1 2025 New
$1.01B
$893,000 0.4% of portfolio
4,555
Q4 2024 New
$3.09B
$857,000 0.39% of portfolio
15,380
Q2 2025 New
$1.03B
$816,000 0.37% of portfolio
124,450
Q4 2024 Added 9.7%
$8.15B
$745,000 0.34% of portfolio
5,750
Q4 2024 Added 3.51%
$391M
$676,000 0.31% of portfolio
111,555
Q1 2025 Added 373.59%
$478M
$630,000 0.28% of portfolio
59,310
Q2 2023 Added 413.28%
$423M
$567,000 0.26% of portfolio
16,510
Q3 2025 Reduced 52.16%
$6.02B
$275,000 0.12% of portfolio
6,555
Q1 2025 Reduced 94.65%
$363M
$123,000 0.06% of portfolio
12,555
Q3 2025 Reduced 83.81%
$187M
$124,000 0.06% of portfolio
17,555
Q2 2025 Reduced 82.37%
$213M
$132,000 0.06% of portfolio
27,555
Q3 2025 New
$165M
$140,000 0.06% of portfolio
44,555
Q3 2025 Added 285.59%
$19.3M
$62,000 0.03% of portfolio
75,555
Q2 2024 New
$255M
$40,000 0.02% of portfolio
12,555
Q2 2024 New
$275M
$24,000 0.01% of portfolio
13,555
Q3 2022 New
$217M
$29,000 0.01% of portfolio
11,555
Q3 2025 New
$517M
$31,000 0.01% of portfolio
11,555
Q3 2025 New
$662M
$16,000 0.01% of portfolio
12,555
Q2 2024 New
$64.9M
$28,000 0.01% of portfolio
13,555
Q2 2025 Reduced 93.91%
Techtarget Inc
-
$0 0.0% of portfolio
-
Q3 2025 New
Forrester Resh Inc
-
$0 0.0% of portfolio
-
Q3 2025 New

Summary

  • Portfolio
  • No. of Stocks 52
  • Current Value $222 Million
  • Prior Value $181 Million
  • Filing
  • Period Q3 2025
  • Filing Date November 12, 2025
  • Form Type 13F-HR
  • Activity in Q3 2025
  • New Purchases 5 stocks
  • Additional Purchases 4 stocks
  • Sold out of 0 stocks
  • Reduced holdings in 5 stocks
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