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Super Investors / Nierenberg Investment Management Company, LLC
NI

Nierenberg Investment Management Company, LLC

Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.

Portfolio value
$201M
Positions
35
Quarter ended
June 30, 2026
Filed
August 11, 2026

Reported portfolio value by quarter (33 quarters reported)

$234M $64.3M
Q2 13 Q1 15 Q4 21 Q3 23 Q2 25 Q2 26

$136M in Q2 2013 → $201M now. Hover for any quarter.

Holdings

As reported for the quarter ended June 30, 2026. Activity is the change in share count since the prior quarter's filing.

Holding % of portfolio Activity Shares Value
IT Ishares Tr 23.0% Trimmed 16% 461,047 $46.4M
Eqt Corp 14.1% Unchanged 533,363 $28.4M
Criteo S A 9.6% Unchanged 1,052,787 $19.2M
Lyft Inc 9.4% Unchanged 1,295,623 $18.9M
Maplebear Inc 6.9% Unchanged 291,888 $13.8M
Kbr Inc 6.6% Unchanged 386,443 $13.3M
Riverview Bancorp Inc 5.5% Unchanged 2,032,775 $11M
Fti Consulting Inc 5.5% Added 655% 73,887 $11M
RC Rocket Cos Inc 3.4% Unchanged 429,631 $6.77M
Green Dot Corp 2.3% Unchanged 339,110 $4.58M
DH Diversified Healthcare Tr 2.1% Unchanged 456,110 $4.24M
BS Brookdale Sr Living Inc 2.0% Unchanged 255,110 $4.1M
Five9 Inc 1.4% Unchanged 135,810 $2.9M
Tandem Diabetes Care Inc 1.2% Added 100% 158,910 $2.4M
HM Haemonetics Corp Mass 1.0% New 26,280 $1.97M
GC Greenlight Cap Re Ltd 0.8% Unchanged 102,510 $1.66M
Ring Energy Inc 0.8% New 1,399,555 $1.51M
Concentrix Corp 0.7% Unchanged 64,480 $1.44M
Expand Energy Corporation 0.7% Unchanged 15,555 $1.42M
FR Forrester Resh Inc 0.5% Unchanged 131,110 $1.1M
HE Helix Energy Solutions Grp I 0.5% Unchanged 124,450 $1.09M
Dxc Technology Co 0.5% Unchanged 102,510 $907K
Oshkosh Corp 0.4% Unchanged 5,750 $883K
TH Ttec Hldgs Inc 0.2% Unchanged 255,555 $496K
Techtarget Inc 0.2% Trimmed 33% 136,910 $493K
Fluor Corp 0.2% Unchanged 6,555 $343K
Dhi Group Inc 0.2% Unchanged 84,555 $314K
Orasure Technologies Inc 0.1% Unchanged 55,555 $248K
Arhaus Inc 0.1% Unchanged 12,310 $104K
OS Oil Sts Intl Inc 0.0% Unchanged 11,555 $92.6K
Talkspace Inc 0.0% Unchanged 11,555 $60.1K
Nn Inc 0.0% Unchanged 13,555 $48.7K
Cytomx Therapeutics Inc. 0.0% Unchanged 12,555 $47.1K
W & T Offshore Inc 0.0% Unchanged 13,555 $42.7K
Conduent Inc 0.0% New 17,555 $25.6K

Timeline of changes

What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.

Q2 2026

quarter ended June 30, 2026 · filed August 11, 2026

Company Action Shares changed Value of change % of portfolio
Fti Consulting Inc Added +64,107 +$9.55M 5.5%
IT Ishares Tr Trimmed −89,550 −$9.01M 23.0%
HM Haemonetics Corp Mass New +26,280 +$1.97M 1.0%
Ring Energy Inc New +1,399,555 +$1.51M 0.8%
CC Cross Ctry Healthcare Inc Exited −144,555 −$1.36M
Tandem Diabetes Care Inc Added +79,400 +$1.2M 1.2%
Adtran Holdings Inc Exited −93,110 −$1.17M
OF Oceanfirst Finl Corp Exited −39,555 −$714K
Hope Bancorp Inc Exited −63,555 −$710K
Concentrix Corp Exited −20,000 −$547K

Showing the 10 largest of 21 changes.

Q1 2026

quarter ended March 31, 2026 · filed May 13, 2026

Company Action Shares changed Value of change % of portfolio
RC Rocket Cos Inc Trimmed −907,000 −$12.9M 3.0%
Kbr Inc Added +312,733 +$11.5M 7.1%
Maplebear Inc New +291,888 +$10.9M 5.4%
IT Ishares Tr Trimmed −90,000 −$9.06M 27.5%
Lyft Inc Added +482,068 +$6.41M 8.6%
Ge Vernova Inc Exited −7,600 −$4.97M
Criteo S A Added +163,899 +$2.94M 9.4%
Ecovyst Inc Exited −228,810 −$2.23M
BS Brookdale Sr Living Inc Trimmed −155,000 −$2.12M 1.7%
Five9 Inc New +135,810 +$2.06M 1.0%

Showing the 10 largest of 32 changes.

Q4 2025

quarter ended December 31, 2025 · filed February 13, 2026

Company Action Shares changed Value of change % of portfolio
IT Ishares Tr New +640,597 +$64.3M 31.2%
Potbelly Corp Exited −2,980,564 −$50.8M
MC Mr Cooper Group Inc Exited −126,121 −$26.6M
RC Rocket Cos Inc New +1,336,631 +$25.9M 12.6%
SS SPDR S&P 500 ETF Tr Exited −25,000 −$16.7M
IQ Invesco Qqq Tr Exited −17,100 −$10.3M
Criteo S A Added +463,929 +$9.56M 8.9%
Nvidia Corporation Exited −22,800 −$4.25M
Broadcom Inc Exited −10,200 −$3.37M
Vertiv Holdings Co Exited −21,200 −$3.2M

Showing the 10 largest of 34 changes.

Q3 2025

quarter ended September 30, 2025 · filed November 12, 2025

Company Action Shares changed Value of change % of portfolio
MC Mr Cooper Group Inc Trimmed −169,933 −$35.8M 11.4%
Lyft Inc Added +771,000 +$17M 7.7%
SS SPDR S&P 500 ETF Tr New +25,000 +$16.7M 7.1%
IQ Invesco Qqq Tr Added +11,000 +$6.6M 4.4%
Criteo S A Trimmed −110,743 −$2.5M 4.1%
Broadcom Inc Added +7,000 +$2.31M 1.4%
Nvidia Corporation Added +12,000 +$2.24M 1.8%
Arista Networks Inc Added +13,000 +$1.89M 1.2%
Vertiv Holdings Co Added +12,000 +$1.81M 1.4%
Tutor Perini Corp Trimmed −20,000 −$1.31M 0.7%

Showing the 10 largest of 27 changes.

Q2 2025

quarter ended June 30, 2025 · filed August 11, 2025

Company Action Shares changed Value of change % of portfolio
Cantaloupe Inc Exited −2,467,534 −$19.4M
Criteo S A Added +269,204 +$6.45M 6.8%
MC Mr Cooper Group Inc Trimmed −41,250 −$6.15M 23.5%
Green Dot Corp Added +261,555 +$2.82M 1.9%
Riverview Bancorp Inc Added +304,741 +$1.68M 5.7%
Bread Financial Holdings Inc Exited −27,680 −$1.39M
Tutor Perini Corp Trimmed −22,000 −$1.03M 1.1%
FF Flushing Finl Corp Exited −77,555 −$985K
Bread Financial Holdings Inc New +15,380 +$879K 0.5%
Adtran Holdings Inc Trimmed −92,000 −$825K 1.6%

Showing the 10 largest of 28 changes.

Q1 2025

quarter ended March 31, 2025 · filed May 13, 2025

Company Action Shares changed Value of change % of portfolio
Eastern Bankshares Inc Exited −613,088 −$10.6M
Criteo S A Added +198,943 +$7.04M 5.2%
Eqt Corp Exited −116,000 −$5.35M
FN Fluor Corp New Trimmed −116,000 −$4.16M 0.1%
MC Mr Cooper Group Inc Trimmed −25,700 −$3.07M 22.0%
IQ Invesco Qqq Tr New +6,100 +$2.86M 1.6%
Ge Vernova Inc New +9,200 +$2.81M 1.5%
Riverview Bancorp Inc Added +346,612 +$1.96M 5.0%
Bread Financial Holdings Inc Exited −27,680 −$1.69M
Adtran Holdings Inc Exited −200,000 −$1.67M

Showing the 10 largest of 39 changes.

Q4 2024

quarter ended December 31, 2024 · filed February 13, 2025

Company Action Shares changed Value of change % of portfolio
FN Fluor Corp New Trimmed −309,503 −$15.3M 3.4%
Criteo S A New +67,555 +$2.67M 1.5%
Expand Energy Corporation Added +19,300 +$1.92M 1.1%
SE Southwestern Energy Co Exited −199,555 −$1.42M
Concentrix Corp Added +30,170 +$1.31M 1.5%
Riverview Bancorp Inc Added +225,822 +$1.3M 4.1%
Bread Financial Holdings Inc Exited −26,000 −$1.24M
Helen Of Troy Ltd Exited −15,080 −$933K
Premier Inc Exited −37,010 −$740K
Applovin Corp Trimmed −2,000 −$648K 0.5%

Showing the 10 largest of 24 changes.

Q3 2024

quarter ended September 30, 2024 · filed November 13, 2024

Company Action Shares changed Value of change % of portfolio
MC Mr Cooper Group Inc Trimmed −151,180 −$13.9M 19.0%
FI Flotek Inds Inc Del Exited −1,247,637 −$6.13M
Riverview Bancorp Inc Added +658,205 +$3.1M 2.8%
Adtran Holdings Inc New +343,110 +$2.03M 1.2%
First Horizon Corporation Exited −111,555 −$1.76M
Potbelly Corp Added +150,704 +$1.26M 14.1%
International Seaways Inc Exited −20,480 −$1.21M
Adtran Holdings Inc New +200,000 +$1.19M 0.7%
Eqt Corp Added +28,000 +$1.03M 11.1%
CH Commscope Hldg Co Inc Trimmed −140,000 −$855K 0.2%

Showing the 10 largest of 39 changes.

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