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Reinhart Partners, Inc.

SEC CIK
0001080298
Latest filing
Jul 8, 2026

The latest 13F from Reinhart Partners, Inc. covers Q2 2026 (filed Jul 8, 2026): 72 long positions worth $4.38B. The top 10 holdings make up 40.0% of the portfolio, and the largest is Silicon Motion Technology CORP (SIMO) at 7.4%. Livermore has 23 filings on Form 13F from this institution, going back to Q1 2021.

What changed in Q2 2026

Share counts compared with Q1 2026: how many positions were new, added to, reduced or sold out, and the biggest buys and sells. Dollar amounts are estimated at the quarter-end prices implied by the filing.

Full comparison
New
5
Est. +$211.9M
Added
27
Est. +$252.4M
Reduced
38
Est. −$428.7M
Sold out
3
Est. −$101.8M

Top 5 holdings

Share of this quarter's portfolio value

  1. SIMOSilicon Motion Technology CORP
    7.4%$322.0MHistory
  2. LNTHLantheus Holdings, Inc.
    4.1%$177.4MHistory
  3. ACLSAxcelis Technologies Inc
    4.0%$175.9MHistory
  4. FCNCAFirst Citizens Bancshares Inc
    4.0%$175.3MHistory
  5. SKWDSkyward Specialty Insurance Group, Inc.
    3.9%$168.9MHistory

Biggest buys

New and added positions, by estimated amount bought

  1. DORMDorman Products, Inc.
    +$93.4MNewHistory
  2. OIIOceaneering International Inc
    +$66.8MNewHistory
  3. MMSMaximus, Inc.
    +$60.6MAddedHistory
  4. ICUIIcu Medical Inc
    +$46.1MNewHistory
  5. LOPEGrand Canyon Education, Inc.
    +$34.1MAddedHistory

Largest weight increases

New and added positions, by percentage points of the portfolio gained

  1. DORMDorman Products, Inc.
    +2.13 pp0.0% → 2.1%History
  2. OIIOceaneering International Inc
    +1.53 pp0.0% → 1.5%History
  3. ICUIIcu Medical Inc
    +1.05 pp0.0% → 1.1%History
  4. MMSMaximus, Inc.
    +0.86 pp1.6% → 2.4%History
  5. NSPInsperity, Inc.
    +0.83 pp2.3% → 3.1%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. ACLSAxcelis Technologies Inc
    −$138.1MReducedHistory
  2. SIMOSilicon Motion Technology CORP
    −$116.0MReducedHistory
  3. FORMFormfactor Inc
    −$83.1MReducedHistory
  4. EFOREverforth Inc
    −$63.9MSold outHistory
  5. ESIElement Solutions Inc
    −$33.3MSold outHistory

Largest weight decreases

Reduced and sold-out positions, by percentage points of the portfolio lost

  1. EFOREverforth Inc
    −1.84 pp1.8% → 0.0%History
  2. AHCOAdaptHealth Corp.
    −1.68 pp3.4% → 1.8%History
  3. ESIElement Solutions Inc
    −0.96 pp1.0% → 0.0%History
  4. FORMFormfactor Inc
    −0.90 pp3.2% → 2.3%History
  5. AGOAssured Guaranty Ltd
    −0.73 pp3.0% → 2.3%History

Metrics

13F metrics for Q2 2026, computed only from the numbers in the filings. Definitions below.

Portfolio value
$4.38B
+$901.2M (+25.9%) vs. prior quarter
Positions
72
+2 vs. prior quarter
Top 10 concentration
40.0%
Top 10 as share of value
Turnover
11.8%
Q2 2026, one quarter
Average holding period
14.0 quarters
Weighted by value

How these are calculated

  • Portfolio value: the market value of all long positions in the 13F, as reported at quarter end, excluding options.
  • Top 10 concentration: the combined value of the 10 largest positions as a share of portfolio value.
  • Turnover: the smaller of this quarter's estimated purchases and estimated sales, divided by the average of this and last quarter's portfolio value. Estimates multiply the change in shares by the quarter-end price implied by the filing (market value divided by shares); new positions use this quarter's value and sold-out positions last quarter's. Only positions reported in shares count, and it is not calculated when the previous quarter was not filed.
  • Average holding period: how many consecutive quarters each current position has been held (including this one; a quarter without the position or without a filing starts the count over), weighted by this quarter's value. Counting starts with the first 13F in Livermore (Q1 2021), so positions held before then are understated.

13F filings by quarter

22 quarters, going back to Q1 2021. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.

Peak $4.38B (Q2 2026)

Q1 2021: $1.92BQ2 2021: $2.01BQ3 2021: $1.97BQ4 2021: $2.08BQ1 2022: $2.06BQ2 2022: $1.82BQ3 2022: $1.62BQ4 2022: $1.84BQ1 2023: $1.85BQ2 2023: $1.97BQ3 2023: $1.93BQ4 2023: $2.27BQ1 2024: $2.46BQ2 2024: $2.41BQ3 2024: $2.63BQ4 2024: $2.60BQ1 2025: $2.74BQ2 2025: $2.93BQ3 2025: $3.08BQ4 2025: $3.34BQ1 2026: $3.48BQ2 2026: $4.38B
Q1 2021Q2 2026
13F filings of Reinhart Partners, Inc. by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Jul 8, 202672$4.38BSIMOLNTHACLSvs. Q1 2026SEC
Q1 2026Apr 13, 202670$3.48BACLSFCNCASIMOvs. Q4 2025SEC
Q4 2025Feb 10, 202674$3.34BFCNCASIMOYETIvs. Q3 2025SEC
Q3 2025Oct 28, 202574$3.08BACLSIDCCSIMOvs. Q2 2025SEC
Q2 2025Jul 9, 202574$2.93BFCNCALNTHSIMOvs. Q1 2025SEC
Q1 2025Apr 11, 202577$2.74BNSPFCNCALNTHvs. Q4 2024SEC
Q4 2024Jan 13, 202578$2.60BFCNCALNTHFTDRvs. Q3 2024SEC
Q3 2024Oct 9, 202480$2.63BLNTHFTDRFCNCAvs. Q2 2024SEC
Q2 2024Jul 18, 202481$2.41BLNTHFCNCANSPvs. Q1 2024SEC
Q1 2024Apr 3, 2024Amended81$2.46BUHAL.BNSPFCNCAvs. Q4 2023SEC
Q4 2023Jan 16, 202480$2.27BUHAL.BNSPLNTHvs. Q3 2023SEC
Q3 2023Oct 25, 202377$1.93BNSPUHAL.BFCNCAvs. Q2 2023SEC
Q2 2023Aug 1, 202375$1.97BNSPFCNCAUHAL.Bvs. Q1 2023SEC
Q1 2023Apr 26, 202376$1.85BNSPUHAL.BLNTHvs. Q4 2022SEC
Q4 2022Jan 18, 202379$1.84BAJRDUHAL.BNSPvs. Q3 2022SEC
Q3 2022Nov 1, 202277$1.62BUHALNSPAJRDvs. Q2 2022SEC
Q2 2022Jul 27, 202279$1.82BAJRDNSPWTMvs. Q1 2022SEC
Q1 2022Apr 20, 202281$2.06BMAXRUHALEHCvs. Q4 2021SEC
Q4 2021Jan 27, 202280$2.08BUHALNSPEHCvs. Q3 2021SEC
Q3 2021Oct 20, 202183$1.97BUHALNSPWTMvs. Q2 2021SEC
Q2 2021Jul 21, 202180$2.01BUHALWTMMAXRvs. Q1 2021SEC
Q1 2021Apr 22, 202180$1.92BUHALWTMEHC–SEC

13D and 13G filings

Companies where Reinhart Partners, Inc. reports owning 5% or more on Schedule 13D or 13G, and its latest filings.

Current stakes of 5% or more

5 companies, largest stake first.

Companies where Reinhart Partners, Inc. owns 5% or more
CompanyLatest formStakeChangeFirst filedLatest filingFiling
NSPInsperity, Inc.13G/A7.30%2.75M shares+1.40 ppfrom 5.90%Nov 4, 20252 filingsFeb 12, 2026SEC
SKWDSkyward Specialty Insurance Group, Inc.13G6.00%2.42M sharesNewFeb 12, 20261 filingFeb 12, 2026SEC
AHCOAdaptHealth Corp.13G5.40%7.24M sharesNewMay 15, 20251 filingMay 15, 2025SEC
CDRECadre Holdings, Inc.13G5.30%2.17M sharesNewFeb 12, 20261 filingFeb 12, 2026SEC
HLMNHillman Solutions Corp.13G5.10%10.1M sharesNewAug 5, 20251 filingAug 5, 2025SEC

Latest filings

10 filings on file made by Reinhart Partners, Inc. or listing it as a reporting person, newest first.

Schedule 13D and 13G filings by Reinhart Partners, Inc.
CompanyFiled (ET)FormStakeChangeEvent dateFiling
ACLSAxcelis Technologies IncJul 14, 202612:51 PM ET13G/A3.00%928.7K shares−2.20 ppfrom 5.20%Below 5%Jun 30, 2026SEC
SKWDSkyward Specialty Insurance Group, Inc.Feb 12, 20264:33 PM ET13G6.00%2.42M sharesNewDec 31, 2025SEC
CDRECadre Holdings, Inc.Feb 12, 20264:13 PM ET13G5.30%2.17M sharesNewDec 31, 2025SEC
ACLSAxcelis Technologies IncFeb 12, 20264:05 PM ET13G5.20%1.59M sharesNewDec 31, 2025SEC
NSPInsperity, Inc.Feb 12, 20263:38 PM ET13G/A7.30%2.75M shares+1.40 ppfrom 5.90%Sep 30, 2025SEC
MMIMarcus & Millichap, Inc.Feb 12, 20262:28 PM ET13G/A––Mar 31, 2025SEC
NSPInsperity, Inc.Nov 4, 202512:38 PM ET13G5.90%2.20M sharesNewSep 30, 2025SEC
HLMNHillman Solutions Corp.Aug 5, 20251:45 PM ET13G5.10%10.1M sharesNewJun 30, 2025SEC
MMIMarcus & Millichap, Inc.May 15, 202510:08 AM ET13G5.60%2.16M sharesNewMar 31, 2025SEC
AHCOAdaptHealth Corp.May 15, 20259:33 AM ET13G5.40%7.24M sharesNewMar 31, 2025SEC