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Livermore
Livermore
ZHEN

Bamco Inc

SEC CIK
0001017918
Latest filing
Aug 14, 2026

The latest 13F from Bamco Inc covers Q2 2026 (filed Aug 14, 2026): 345 long positions worth $66.6B. The top 10 holdings make up 60.9% of the portfolio, and the largest is Space Exploration Technologies Corp (SPCX) at 37.4%. Livermore has 22 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
53
Est. +$26.1B
Added
117
Est. +$7.16B
Reduced
155
Est. −$1.89B
Sold out
34
Est. −$373.4M

Top 5 holdings

Share of this quarter's portfolio value

  1. SPCXSpace Exploration Technologies Corp
    37.4%$24.9BHistory
  2. TSLATesla, Inc.
    7.9%$5.27BHistory
  3. MSCIMSCI Inc.
    2.7%$1.80BHistory
  4. ACGLArch Capital Group Ltd.
    2.3%$1.54BHistory
  5. HHyatt Hotels Corp
    2.1%$1.41BHistory

Biggest buys

New and added positions, by estimated amount bought

  1. SPCXSpace Exploration Technologies Corp
    +$24.9BNewHistory
  2. SHOPShopify Inc.
    +$735.0MAddedHistory
  3. SPOTSpotify Technology S.A.
    +$511.3MAddedHistory
  4. MORNMorningstar, Inc.
    +$427.4MAddedHistory
  5. VRSKVerisk Analytics, Inc.
    +$393.3MAddedHistory

Largest weight increases

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

  1. SPCXSpace Exploration Technologies Corp
    +37.38 pp0.0% → 37.4%History
  2. MORNMorningstar, Inc.
    +0.43 pp0.4% → 0.8%History
  3. BXDCBlackstone Digital Infrastructure Trust Inc.
    +0.25 pp0.0% → 0.2%History
  4. SHOPShopify Inc.
    +0.22 pp1.7% → 1.9%History
  5. MRNAModerna, Inc.
    +0.21 pp0.0% → 0.2%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. WYNNWynn Resorts Ltd
    −$101.4MReducedHistory
  2. ACGLArch Capital Group Ltd.
    −$81.3MReducedHistory
  3. FNDFloor & Decor Holdings, Inc.
    −$75.6MReducedHistory
  4. VRTVertiv Holdings Co
    −$67.4MReducedHistory
  5. LGNLegence Corp.
    −$65.6MReducedHistory

Largest weight decreases

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

  1. ACGLArch Capital Group Ltd.
    −2.53 pp4.8% → 2.3%History
  2. SITESiteOne Landscape Supply, Inc.
    −0.48 pp0.8% → 0.3%History
  3. WYNNWynn Resorts Ltd
    −0.43 pp0.5% → 0.1%History
  4. EQIXEquinix Inc
    −0.42 pp0.7% → 0.3%History
  5. VRTVertiv Holdings Co
    −0.40 pp0.9% → 0.5%History

Metrics

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

Portfolio value
$66.6B
+$33.5B (+101.2%) vs. prior quarter
Positions
345
+19 vs. prior quarter
Top 10 concentration
60.9%
Top 10 as share of value
Turnover
4.5%
Q2 2026, one quarter
Average holding period
12.3 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 $66.6B (Q2 2026)

Q1 2021: $40.5BQ2 2021: $43.5BQ3 2021: $44.0BQ4 2021: $47.1BQ1 2022: $40.6BQ2 2022: $31.1BQ3 2022: $30.9BQ4 2022: $29.7BQ1 2023: $33.3BQ2 2023: $36.1BQ3 2023: $34.4BQ4 2023: $37.5BQ1 2024: $37.5BQ2 2024: $34.9BQ3 2024: $37.7BQ4 2024: $38.7BQ1 2025: $34.0BQ2 2025: $36.9BQ3 2025: $37.7BQ4 2025: $36.9BQ1 2026: $33.1BQ2 2026: $66.6B
Q1 2021Q2 2026
13F filings of Bamco Inc by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Aug 14, 2026345$66.6BSPCXTSLAMSCIvs. Q1 2026SEC
Q1 2026May 15, 2026326$33.1BTSLAACGLMSCIvs. Q4 2025SEC
Q4 2025Feb 17, 2026327$36.9BTSLAACGLMSCIvs. Q3 2025SEC
Q3 2025Nov 14, 2025330$37.7BTSLAACGLCSGPvs. Q2 2025SEC
Q2 2025Aug 14, 2025306$36.9BTSLAACGLCSGPvs. Q1 2025SEC
Q1 2025May 15, 2025314$34.0BTSLAACGLITvs. Q4 2024SEC
Q4 2024Feb 14, 2025316$38.7BTSLAITACGLvs. Q3 2024SEC
Q3 2024Nov 14, 2024328$37.7BTSLAACGLITvs. Q2 2024SEC
Q2 2024Aug 14, 2024329$34.9BTSLAACGLITvs. Q1 2024SEC
Q1 2024May 15, 2024332$37.5BTSLAITACGLvs. Q4 2023SEC
Q4 2023Feb 14, 2024330$37.5BTSLAITCSGPvs. Q3 2023SEC
Q3 2023Nov 14, 2023334$34.4BTSLAACGLITvs. Q2 2023SEC
Q2 2023Aug 14, 2023343$36.1BTSLACSGPITvs. Q1 2023SEC
Q1 2023May 15, 2023360$33.3BTSLAITACGLvs. Q4 2022SEC
Q4 2022Feb 14, 2023375$29.7BTSLAITCSGPvs. Q3 2022SEC
Q3 2022Nov 14, 2022370$30.9BTSLAITCSGPvs. Q2 2022SEC
Q2 2022Aug 15, 2022371$31.1BTSLAITCSGPvs. Q1 2022SEC
Q1 2022May 13, 2022388$40.6BTSLAITIDXXvs. Q4 2021SEC
Q4 2021Feb 14, 2022404$47.1BTSLAITIDXXvs. Q3 2021SEC
Q3 2021Nov 12, 2021397$44.0BTSLAITIDXXvs. Q2 2021SEC
Q2 2021Aug 13, 2021401$43.5BTSLAIDXXCSGPvs. Q1 2021SEC
Q1 2021May 19, 2021394$40.5BTSLACSGPIDXX–SEC

13D and 13G filings

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

Current stakes of 5% or more

20 companies, largest stake first.

Companies where Bamco Inc owns 5% or more
CompanyLatest formStakeChangeFirst filedLatest filingFiling
FIGSFIGS, Inc.13D/A37.93%60.0M shares−0.11 ppfrom 38.04%Nov 14, 20248 filingsMar 3, 2026SEC
RRRRed Rock Resorts, Inc.13G/A27.94%16.3M shares+5.26 ppfrom 22.68%Feb 12, 20216 filingsJun 3, 2026SEC
CHHChoice Hotels International Inc13G/A20.50%9.33M shares+4.35 ppfrom 16.15%Feb 12, 20214 filingsAug 14, 2026SEC
MTNVail Resorts Inc13G/A18.34%6.54M shares+4.19 ppfrom 14.15%Feb 12, 20216 filingsAug 14, 2026SEC
HHyatt Hotels Corp13G/A17.74%7.28M shares+3.14 ppfrom 14.60%Feb 12, 20215 filingsAug 14, 2026SEC
FDSFactset Research Systems Inc13G/A11.81%4.20M shares+1.60 ppfrom 10.21%Feb 12, 20216 filingsAug 14, 2026SEC
ITGartner Inc13G/A11.29%7.56M shares+2.89 ppfrom 8.40%Feb 12, 20216 filingsJun 3, 2026SEC
INDIindie Semiconductor, Inc.13G/A10.86%21.6M shares−2.12 ppfrom 12.98%Nov 14, 20244 filingsNov 14, 2025SEC
GWREGuidewire Software, Inc.13G/A10.80%8.99M shares+3.01 ppfrom 7.79%Feb 12, 20215 filingsJul 2, 2026SEC
KNSLKinsale Capital Group, Inc.13G/A10.72%2.47M shares+1.96 ppfrom 8.76%Feb 12, 20214 filingsJun 3, 2026SEC
MORNMorningstar, Inc.13G9.20%3.50M sharesNewAug 14, 20261 filingAug 14, 2026SEC
TWFGTWFG, Inc.13G/A8.73%1.14M shares+1.18 ppfrom 7.55%Feb 14, 20253 filingsAug 14, 2026SEC
BIRKBirkenstock Holding plc13G/A8.01%14.7M shares+2.92 ppfrom 5.09%May 15, 20262 filingsAug 14, 2026SEC
CDROCodere Online Luxembourg, S.A.13G/A7.74%3.50M shares+0.01 ppfrom 7.73%Nov 14, 20242 filingsAug 14, 2026SEC
BXDCBlackstone Digital Infrastructure Trust Inc.13G7.57%7.62M sharesNewAug 14, 20261 filingAug 14, 2026SEC
ANDGAndersen Group Inc.13G7.12%900.1K sharesNewMay 15, 20261 filingMay 15, 2026SEC
ONTOnterris, Inc.13G/A6.12%2.16M shares−1.66 ppfrom 7.78%Feb 14, 20253 filingsNov 14, 2025SEC
ONONOn Holding AG13G5.65%16.9M sharesNewAug 14, 20261 filingAug 14, 2026SEC
CSGPCostar Group, Inc.13G5.30%21.6M shares–Feb 12, 20212 filingsAug 14, 2026SEC
STVNStevanato Group S.p.A.13G5.03%2.50M sharesNewMay 15, 20261 filingMay 15, 2026SEC

Latest filings

104 filings on file made by Bamco Inc or listing it as a reporting person; the latest 20 are shown.

Schedule 13D and 13G filings by Bamco Inc
CompanyFiled (ET)FormStakeChangeEvent dateFiling
MTNVail Resorts IncAug 14, 202611:09 AM ET13G/A18.34%6.54M shares+4.19 ppfrom 14.15%Jun 30, 2026SEC
FDSFactset Research Systems IncAug 14, 202611:04 AM ET13G/A11.81%4.20M shares+1.60 ppfrom 10.21%Jun 30, 2026SEC
BIRKBirkenstock Holding plcAug 14, 202610:59 AM ET13G/A8.01%14.7M shares+2.92 ppfrom 5.09%Jun 30, 2026SEC
TWFGTWFG, Inc.Aug 14, 202610:55 AM ET13G/A8.73%1.14M shares+1.18 ppfrom 7.55%Jun 30, 2026SEC
ONONOn Holding AGAug 14, 202610:53 AM ET13G5.65%16.9M sharesNewJun 30, 2026SEC
MORNMorningstar, Inc.Aug 14, 202610:51 AM ET13G9.20%3.50M sharesNewJun 30, 2026SEC
HHyatt Hotels CorpAug 14, 202610:48 AM ET13G/A17.74%7.28M shares+3.14 ppfrom 14.60%Jun 30, 2026SEC
CSGPCostar Group, Inc.Aug 14, 202610:45 AM ET13G5.30%21.6M shares–Jun 30, 2026SEC
CHHChoice Hotels International IncAug 14, 202610:43 AM ET13G/A20.50%9.33M shares+4.35 ppfrom 16.15%Jun 30, 2026SEC
CDROCodere Online Luxembourg, S.A.Aug 14, 202610:37 AM ET13G/A7.74%3.50M shares+0.01 ppfrom 7.73%Jun 30, 2026SEC
CDNACareDx, Inc.Aug 14, 202610:35 AM ET13G/A3.75%1.94M shares−2.18 ppfrom 5.93%Below 5%Jun 30, 2026SEC
BXDCBlackstone Digital Infrastructure Trust Inc.Aug 14, 202610:06 AM ET13G7.57%7.62M sharesNewJun 30, 2026SEC
GWREGuidewire Software, Inc.Jul 2, 202610:24 AM ET13G/A10.80%8.99M shares+3.01 ppfrom 7.79%Jun 30, 2026SEC
RRRRed Rock Resorts, Inc.Jun 3, 20262:17 PM ET13G/A27.94%16.3M shares+5.26 ppfrom 22.68%May 31, 2026SEC
KNSLKinsale Capital Group, Inc.Jun 3, 20262:13 PM ET13G/A10.72%2.47M shares+1.96 ppfrom 8.76%May 31, 2026SEC
ITGartner IncJun 3, 20262:12 PM ET13G/A11.29%7.56M shares+2.89 ppfrom 8.40%May 31, 2026SEC
MTNVail Resorts IncMay 15, 20262:33 PM ET13G/A14.15%5.04M shares+0.71 ppfrom 13.44%Mar 31, 2026SEC
TWFGTWFG, Inc.May 15, 20262:30 PM ET13G/A7.55%1.14M shares+1.67 ppfrom 5.88%Mar 31, 2026SEC
RRRRed Rock Resorts, Inc.May 15, 20262:27 PM ET13G/A22.68%13.4M shares+2.26 ppfrom 20.42%Mar 31, 2026SEC
GWREGuidewire Software, Inc.May 15, 20262:02 PM ET13G/A7.79%6.59M shares+1.74 ppfrom 6.05%Mar 31, 2026SEC