AltMountain

Cramer Rosenthal McGlynn LLC

Stamford, CT · CRD 107911
Hedge fund manager

Cramer Rosenthal McGlynn LLC is an SEC-registered investment adviser based in Stamford, CT that reports managing 1 hedge fund on Form ADV. It reports $2.3 billion in regulatory assets under management. Its private funds, of all types, hold $25.6 million in gross assets. Its disclosed U.S. stock holdings returned an estimated +25.7% 2026 YTD through Jun 30 (S&P 500: +9.5%), based on 13F filings. Over a longer period they returned an estimated +48.4% from Q3 2024 to Q2 2026, compared with +37.2% for the S&P 500, based on 13F filings.

Regulatory assets under management
$2.3 billionForm ADV Item 5.F
Gross assets of private funds
$25.6 millionAll private fund types, Form ADV
Hedge funds managed
11 private funds in total
Employees
24Form ADV Item 5.A
Registration
SEC-registered adviserCRD 107911
Latest Form ADV
08/14/2026Disciplinary disclosures: none reported

Estimated 13F portfolio performance

Estimated by AltMountain, derived from the firm’s public Form 13F filings. Not reported by the firm and not the return of any fund.

Estimated from 13F · 2026 YTD+25.7%Through Q2 2026 · S&P 500 +9.5%
Estimated from 13F · 2 years+48.4%Q3 2024 – Q2 2026
S&P 500+37.2%Same quarters, price only
13F holdings$2.0 billion95 positions, 2026-06-30
$100$124$148Q3 2024Q1 2025Q3 2025Q1 202613F est. $148S&P 500 $137
QuarterEst. 13F returnS&P 500
Q2 2026+24.6%+14.8%
Q1 2026+0.8%-4.6%
Q4 2025+5.8%+2.4%
Q3 2025+7.0%+7.8%
Q2 2025+4.0%+10.4%
Q1 2025-9.5%-4.5%
Q4 2024+0.3%+2.1%
Q3 2024+10.5%+5.4%

Estimate of the firm's disclosed long U.S. stock portfolio from its quarterly 13F filings, holding each quarter-end portfolio to the next quarter-end at prices implied by all 13F filers. It is a price return before dividends and fees, ignores shorts, options, bonds, cash and trading within the quarter, and is not the return of any fund. Disclosures

Manager of this firm? Report your fund’s actual net return, or email hello@altmountain.com to correct or remove this estimate. Removal requests from the firm are honored.

13F holdings as of Jun 30, 2026

The 50 largest of 95 share positions ($1,969,663,134) reported by Cramer Rosenthal McGlynn LLC on Form 13F for the quarter ended Jun 30, 2026, filed Aug 13, 2026. Shown as filed with the SEC. Original filing on SEC.gov ↗

StockValue% of 13F portfolioSharesShares vs prior quarter
Champion Homes Inc$83,729,5974.25%950,177+23.84%
Bankunited Inc$76,130,5513.87%1,571,322+18.71%
Regal Rexnord Corporation$71,877,1673.65%301,764+21.36%
Willscot Hldgs Corp$68,564,2893.48%2,375,755+39.14%
MKS Inc.$58,355,0912.96%131,194-11.59%
Tetra Technologies Inc Del$57,447,8472.92%5,070,419+187.94%
Bio-techne Corp$54,734,1802.78%774,723+77.84%
Semtech Corp$53,109,4592.70%328,140-20.84%
Knowles Corp$47,800,1422.43%1,152,366+9.51%
Madden Steven LTD$46,961,6242.38%1,115,478+28.76%
Evergy Inc$45,132,1042.29%522,181+22.32%
Gates Indl Corp LTD Com SHS$44,667,3352.27%1,596,973New
Acv Auctions Inc$43,216,2142.19%6,010,600+53.15%
Teledyne Technologies Inc$40,701,5742.07%61,031+7.72%
First Intst Bancsystem Inc$39,872,6982.02%1,034,043+13.11%
Hub Group Inc$37,654,3201.91%859,884-25.28%
Vail Resorts Inc$37,010,4711.88%271,836+33.97%
Solstice Advanced Matls Inc$36,476,3541.85%411,697New
Veeco Instrs Inc Del$34,712,8371.76%457,953New
Timken Co$34,114,4511.73%234,754+129.40%
Advance Auto Parts Inc$33,262,3141.69%534,592+163.78%
Saia Inc$33,177,7211.68%78,777New
Cooper Cos Inc$31,864,9841.62%444,359+26.61%
First Amern Finl Corp$31,822,8791.62%463,958+21.11%
Canadian Pacific Kansas City$30,893,7581.57%356,535+44.87%
Sun Cmntys Inc$28,660,7681.46%239,019-10.97%
Marten Trans LTD$26,437,1841.34%1,523,757New
Dauch Corp$24,538,2641.25%4,527,355+29.86%
Happen Inc$24,516,4641.24%1,182,086-28.62%
Terreno Rlty Corp$24,112,6401.22%372,281-10.08%
SLB Limited$23,057,8311.17%495,974New
Advanced Drain SYS Inc Del$22,512,1451.14%143,426+19.67%
Ashland Inc$22,319,7761.13%338,743+61.60%
Qnity Electronics Inc$22,285,2831.13%136,460-19.13%
Camden Ppty TR$22,181,9801.13%193,746+128.44%
BJS Restaurants Inc$21,175,6221.08%348,656-41.21%
TFS Finl Corp$20,606,8891.05%1,162,917-1.25%
Sailpoint Inc$18,889,5380.96%1,290,269New
Woodward Inc$17,739,9970.90%41,698-3.31%
Target Corp$17,694,7820.90%135,478New
Concentra Group Holdings Par$17,446,7090.89%586,444-44.96%
Quaker Houghton$16,851,9760.86%106,074+53.18%
Atmos Energy Corp$16,728,6230.85%97,107+8.04%
Biolife Solutions Inc$16,260,3660.83%575,792-9.01%
Microchip Technology Inc.$15,957,8110.81%174,976-3.27%
Applied Indl Technologies In$15,889,6690.81%46,990-3.07%
Nextera Energy Inc$13,807,4500.70%157,314+47.09%
Moelis & Co$13,170,5510.67%201,323+56.56%
Range Res Corp$13,068,4540.66%351,397-45.81%
Floor & Decor Hldgs Inc$13,033,8530.66%219,573New

Changes since Mar 31, 2026

Comparing the share counts in the two quarter-end filings: 17 new positions, 8 sold out, 32 increased, 46 reduced and 0 unchanged.

New positions

StockValueShares
Gates Indl Corp LTD Com SHS$44,667,3351,596,973
Solstice Advanced Matls Inc$36,476,354411,697
Veeco Instrs Inc Del$34,712,837457,953
Saia Inc$33,177,72178,777
Marten Trans LTD$26,437,1841,523,757
SLB Limited$23,057,831495,974
Sailpoint Inc$18,889,5381,290,269
Target Corp$17,694,782135,478
Floor & Decor Hldgs Inc$13,033,853219,573
West Pharmaceutical Svsc Inc$9,430,93026,270
Quanex Bldg Prods Corp$6,440,453345,889
Amazon Com Inc$5,729,45524,039
Tennant Co$5,203,02759,436
Franklin Elec Inc$4,517,95142,149
Space Exploration Techn Corp$3,474,09620,333
Intel Corp$2,305,57116,512
International Business Machs$1,143,1194,065

Sold out

StockValue at Mar 31, 2026Shares held then
Burlington Stores Inc$14,683,74945,128
Gates Indl Corp PLC$9,645,878426,620
Zoominfo Technologies Inc$5,320,747889,757
Marzetti Company$4,146,16529,973
Eagle Matls Inc$3,992,09021,072
Hayward Hldgs Inc$3,697,724276,362
Adtran Holdings Inc$3,612,699287,178
SPDR Series Trust$876,9959,570

Largest increases

StockChange in sharesChangeValue nowShares now
Tetra Technologies Inc Del+3,309,509+187.94%$57,447,8475,070,419
Bio-techne Corp+339,090+77.84%$54,734,180774,723
Advance Auto Parts Inc+331,927+163.78%$33,262,314534,592
Willscot Hldgs Corp+668,306+39.14%$68,564,2892,375,755
Timken Co+132,419+129.40%$34,114,451234,754
Champion Homes Inc+182,901+23.84%$83,729,597950,177
Acv Auctions Inc+2,086,001+53.15%$43,216,2146,010,600
Regal Rexnord Corporation+53,118+21.36%$71,877,167301,764
Camden Ppty TR+108,932+128.44%$22,181,980193,746
Bankunited Inc+247,658+18.71%$76,130,5511,571,322
Madden Steven LTD+249,183+28.76%$46,961,6241,115,478
Canadian Pacific Kansas City+110,430+44.87%$30,893,758356,535
Vail Resorts Inc+68,928+33.97%$37,010,471271,836
Ashland Inc+129,123+61.60%$22,319,776338,743
Evergy Inc+95,281+22.32%$45,132,104522,181
Cooper Cos Inc+93,397+26.61%$31,864,984444,359
Quaker Houghton+36,825+53.18%$16,851,976106,074
Dauch Corp+1,040,932+29.86%$24,538,2644,527,355
First Amern Finl Corp+80,879+21.11%$31,822,879463,958
Forgent Power Solutions Inc+88,696+251.47%$6,924,797123,967

Largest reductions

StockChange in sharesChangeValue nowShares now
Victorias Secret And Co-439,904-82.59%$7,742,52092,747
Tower Semiconductor LTD-118,028-95.69%$1,386,8655,321
Fuller H B Co-330,065-93.56%$1,324,69922,726
BJS Restaurants Inc-244,409-41.21%$21,175,622348,656
Concentra Group Holdings Par-478,977-44.96%$17,446,709586,444
Semtech Corp-86,395-20.84%$53,109,459328,140
Xenia Hotels & Resorts Inc-651,091-73.76%$4,714,928231,578
Hub Group Inc-290,870-25.28%$37,654,320859,884
Range Res Corp-297,067-45.81%$13,068,454351,397
Happen Inc-474,009-28.62%$24,516,4641,182,086
Broadcom Inc-23,346-86.69%$1,353,4783,583
MKS Inc.-17,191-11.59%$58,355,091131,194
Matador Res Co-148,708-50.98%$7,118,042142,990
Ultra Clean Hldgs Inc-50,918-54.02%$6,180,84943,347
Cohu Inc-95,982-50.96%$6,826,32892,360
Viavi Solutions Inc-132,246-46.24%$7,340,417153,726
Xylem Inc-47,134-34.26%$10,689,49490,428
Qnity Electronics Inc-32,273-19.13%$22,285,283136,460
Sensient Technologies Corp-34,672-29.08%$10,425,89684,564
Ciena Corp-8,022-26.84%$10,728,05721,869

Each list shows up to 20 positions, largest first by dollar amount. Changes compare two quarter-end snapshots, with the earlier share count adjusted for stock splits AltMountain detected. They do not show when, or at what price, anything was bought or sold.

From public Form 13F filings, not verified. Form 13F is filed up to 45 days after the quarter ends, so positions may have changed. It lists only certain long positions in U.S.-listed stocks and exchange-traded funds; options are not shown here, and short positions, most bonds, cash, non-U.S. securities and private investments are not reported at all, so a holding may be one side of a hedge. A filing covers the manager as a whole, not any single fund, and filings contain errors. This is not investment advice or a recommendation to buy or sell any security. Disclosures

Hedge funds filing Form D (2)

Matched to this firm by the fund names and related persons in each Form D. The list may be incomplete.

Private funds reported on Form ADV (1)

As reported in the adviser's Form ADV filed Jun 3, 2024. Funds also listed from Form D are shown above.

From SEC filings. Firm data comes from the SEC's Form ADV data as of Oct 2, 2026; performance estimates come from Form 13F. AltMountain has not verified this information, and it is not an offer, solicitation or recommendation. Full disclosures