Arkolith/Funds/Kampmann Melissa S.

Kampmann Melissa S.

CIK 1999898
Holdings as of Jun 30, 2026·disclosed Jul 29, 2026·~29-day 13F lag·13F-HR
Active Filer

Kampmann Melissa S. holds a diversified book of 44 stocks worth $132.3M as of Q2 2026 (disclosed Jul 29, 2026, a ~45-day 13F lag). This quarter they opened Arista Networks Inc and trimmed Eli Lilly & Co. Their largest long position is Eli Lilly & Co at 7% of the equity book.

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holdings, largest changes, and filing provenance.
Opened
8
new positions
Added to
14
existing
Trimmed
27
reduced
Sold out
1
exited

Concentration

Top-heavy: diversified book

Top 5 holdings
29%
Top 10 holdings
48%
Top 20 holdings
76%

Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.

Direct sector allocation

98% mapped to company sectors

Information Technology
34%
Health Care
20%
Consumer Discretionary
15%
Financials
12%
Industrials
7%
Materials
6%
Energy
2%
Utilities
2%

Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.

Biggest moves: latest quarter

Estimated $ traded · quarter-end prices, no cost basis

Bought
Trimmed / exited

Funds with the most overlap

Other tracked managers holding the same core names as Kampmann Melissa S.

Manager / fundShared namesTheir $ in those
VANGUARD GROUP INC51 / 44$2.3T
BlackRock, Inc.51 / 44$1.7T
FMR LLC51 / 44$578.2B
MORGAN STANLEY51 / 44$391.3B
JPMORGAN CHASE & CO51 / 44$369.4B
NORTHERN TRUST CORP51 / 44$233.4B
BANK OF AMERICA CORP /DE/51 / 44$226.7B
GOLDMAN SACHS GROUP INC51 / 44$168.4B

Ranked by how many of Kampmann Melissa S.'s top 44 disclosed names each fund also holds: a cross-fund conviction signal from the latest 13F of every tracked manager.

Holdings: largest first

Bars show each stock's share of the portfolio. Click a row for its position history.

44 positions
#SecurityValueShares% PortLast moveHistory
1Lilly Eli & Co Com
Common Stock
$9.3M7.8K
7.0%
−1.3%
Reduced · −99 sh
2Alphabet Inc C
Common Stock
$9.0M25.5K
6.8%
−0.4%
Reduced · −101 sh
3Apple Inc Com
Common Stock
$7.4M25.7K
5.6%
−0.5%
Reduced · −140 sh
4Rockwell Automation
Common Stock
$6.1M12.3K
4.6%
+0.1%
Added · +13 sh
5JPMorgan Chase & Co Com
Common Stock
$6.1M18.6K
4.6%
−0.3%
Reduced · −56 sh
6Johnson & Johnson Com
Common Stock
$5.4M21.2K
4.1%
−1.0%
Reduced · −210 sh
7Ge Vernova Inc
Common Stock
$5.2M4.4K
3.9%
−0.3%
Reduced · −13 sh
8Walmart Inc
Common Stock
$5.2M45.8K
3.9%
−2.6%
Reduced · −1K sh
9Microsoft Corp Com
Common Stock
$5.0M13.5K
3.8%
−0.7%
Reduced · −93 sh
10Fastenal Co Com
Common Stock
$4.7M98.4K
3.6%
+0.3%
Added · +298 sh
11Amazon.com Inc Com
Common Stock
$4.5M19.0K
3.4%
−0.2%
Reduced · −40 sh
12Generac Hldgs Inc
Common Stock
$4.2M14.4K
3.2%
+1.2%
Added · +166 sh
13Uber Technologies Inc
Common Stock
$4.2M58.3K
3.2%
−2.8%
Reduced · −2K sh
14Mastercard Incorporated
Common Stock
$4.1M8.0K
3.1%
−0.2%
Reduced · −16 sh
15Stryker Corp
Common Stock
$3.9M12.3K
2.9%
−1.2%
Reduced · −152 sh
16Procter & Gamble Co Com
Common Stock
$3.8M25.7K
2.8%
~0%
Reduced · −2 sh
17Ecolab Inc
Common Stock
$3.7M13.4K
2.8%
+0.5%
Added · +69 sh
18Chevron Corp New Com
Common Stock
$3.1M18.7K
2.3%
+3.8%
Added · +686 sh
19RB Global Inc
Int'l Common Stock
$2.8M23.9K
2.1%
−5.0%
Reduced · −1K sh
20Irhythm Technologies Inc
Common Stock
$2.5M21.0K
1.9%
−4.5%
Reduced · −998 sh
21Dexcom Inc
Common Stock
$2.4M36.3K
1.8%
−1.2%
Reduced · −437 sh
22Home Depot Inc Com
Common Stock
$2.4M6.7K
1.8%
−0.6%
Reduced · −40 sh
23Intuitive Surgical Inc
Common Stock
$2.2M5.5K
1.6%
+0.3%
Added · +15 sh
24Costco Wholesale Corp
Common Stock
$1.9M2.1K
1.5%
+12%
Added · +216 sh
25Servicenow Inc
Common Stock
$1.9M19.0K
1.4%
+64%
Added · +7K sh
26Intercontinental Exchange Inc
Common Stock
$1.9M15.1K
1.4%
−7.5%
Reduced · −1K sh
27Oracle Corp
Common Stock
$1.7M11.7K
1.3%
−0.3%
Reduced · −33 sh
28Blackstone Inc
Common Stock
$1.7M14.3K
1.3%
−23%
Reduced · −4K sh
29Nvidia Corp Com
Common Stock
$1.6M8.0K
1.2%
+409%
Added · +6K sh
30Waste Mgmt Inc Del Com
Common Stock
$1.5M6.9K
1.2%
+5.5%
Added · +360 sh
31Vanguard Intermediate Term Bond ETF
Fixed Income ETF
$1.5M20.2K
1.2%
−1.0%
Reduced · −213 sh
32Boeing Co
Common Stock
$1.5M6.7K
1.1%
+8.3%
Added · +514 sh
33Wec Energy Group Inc
Common Stock
$1.4M11.7K
1.0%
Held
34Aon PLC
Int'l Common Stock
$1.3M3.9K
1.0%
−47%
Reduced · −3K sh
35Starbucks Corp Com
Common Stock
$1.3M12.5K
1.0%
+7.5%
Added · +874 sh
36Toast Inc
Common Stock
$1.2M43.7K
0.9%
−12%
Reduced · −6K sh
37S&P Global Inc
Common Stock
$1.1M2.8K
0.9%
−50%
Reduced · −3K sh
38Ishares Core Total US Agg Bond ETF
Fixed Income ETF
$1.1M11.1K
0.8%
+5.2%
Added · +545 sh
39Salesforce Inc
Common Stock
$664K4.2K
0.5%
−36%
Reduced · −2K sh
40Medline Inc
Common Stock
$550K13.9K
0.4%
+156%
Added · +8K sh
41Canadian Natl Ry Co Com
Int'l Common Stock
$401K3.4K
0.3%
−11%
Reduced · −400 sh
42Arista Networks Inc
Common Stock
$322K1.9K
0.2%
New
New position
43Caterpillar Inc Com
Common Stock
$266K250
0.2%
New
New position
44Xylem Inc Com
Common Stock
$254K2.1K
0.2%
−32%
Reduced · −995 sh
Showing all 44 positions

Filing history

As-of date vs the date the SEC received each filing

QuarterAs ofFiledPositionsValueForm
Q2 2026Jun 30, 2026Jul 29, 202686$132.3M13F-HR
Q1 2026Mar 31, 2026Apr 23, 202682$124.6M13F-HR
Q4 2025Dec 31, 2025Jan 26, 202678$135.2M13F-HR
Q3 2025Sep 30, 2025Oct 9, 202577$137.2M13F-HR
Q2 2025Jun 30, 2025Jul 24, 202577$133.2M13F-HR
Q1 2025Mar 31, 2025Apr 25, 202579$126.5M13F-HR
Q4 2024Dec 31, 2024Feb 11, 202579$127.1M13F-HR
Q3 2024Sep 30, 2024Nov 4, 202479$141.4M13F-HR

Data source

Holdings from SEC EDGAR 13F-HR filings, updated quarterly ~45 days after quarter-end. Public domain. The book and weighting are long equity only; disclosed put/call options are listed separately and excluded from those totals. Price-derived performance is withheld until the price-source policy and freshness gate are green.