Platt Investment Counsel, LLC 13F Portfolio

CIK 1859195 Filing since Q4 2020 Q3 2026 filed Oct 7, 2026
Holdings as of Sep 30, 2026, from the 13F filed Oct 7, 2026.

Portfolio Snapshot

5 positions · Q3 2026

Platt Investment Counsel, LLC reported 5 positions worth $1.73M for the quarter ended Sep 30, 2026, up 1.3% on the prior quarter. It opened 1 new position, added to 0, trimmed 1 and exited 0. Its largest holding is Bristol Myers Squibb Co at 30.7% of the portfolio.

Portfolio Value
$1.73M
+1.3% QoQ · +39.7% YoY
Positions
5
1 new · 0 sold out
Top 10 Concentration
100%
of portfolio value
Largest Position
BMY 30.7%
Bristol Myers Squibb Co
Net Buying
+$34.59K
$45.24K bought · $10.64K sold
Turnover
0.6%
of the portfolio traded
Top Sector
Technology
39.7% of value
Track Record
23
quarters on file since Q4 2020

Portfolio Value & Positions

Value Positions

Reported 13F market value at each quarter end. A change mixes trading with price moves in the positions held.

Sector Allocation

3 sectors
39.73%
Technology
Technology39.73%
Healthcare33.27%
Consumer Discretionary27%

Quarterly Buying & Selling

Bought Sold

Dollar value of shares bought and sold each quarter, at that quarter’s price. It counts trading only, not price changes.

Position Changes

How many positions were opened, added to, trimmed or closed each quarter.

Sector Allocation Over Time

Share of reported value in each sector at every quarter end.

TechnologyHealthcareConsumer DiscretionaryConsumer StaplesFinancial Services

Largest Buys

Q3 2026
Holding Change Change % Trade Value Weight
IVA Inventiva S.A. +12.3K – $45.24K 2.61%

Largest Sells

Q3 2026
Holding Change Change % Trade Value Weight
TSLA Tesla, Inc. -30 -2.2% $10.64K 27%

New Positions

Q3 2026
Holding Shares Trade Value Weight
IVA Inventiva S.A. +12.3K $45.24K 2.61%

Closed Positions

Q3 2026

No positions were closed this quarter.

Holdings · Q3 2026

5 Positions

As ofSep 30, 2026
Value$1.73M
Top 10100%
Avg position$346.97K
# Activity
Showing all 5 positions 13F filings on SEC EDGAR

Tip. Select a row to see that position’s full history at Platt Investment Counsel.

About Platt Investment Counsel, LLC’s 13F Portfolio

What are Platt Investment Counsel, LLC’s largest holdings?

As of its Q3 2026 13F filing, Platt Investment Counsel, LLC’s five largest positions were Bristol Myers Squibb Co (BMY) at 30.7%, Tesla, Inc. (TSLA) at 27.0%, Apple Inc. (AAPL) at 21.3%, Alphabet Inc. (GOOGL) at 18.4%, Inventiva S.A. (IVA) at 2.6% of the reported portfolio.

How much is Platt Investment Counsel, LLC’s portfolio worth?

Platt Investment Counsel, LLC reported a 13F portfolio worth $1.73M across 5 positions for Q3 2026. That is up 1.3% from the previous quarter.

What did Platt Investment Counsel, LLC buy in Q3 2026?

Its largest purchases by value were Inventiva S.A. ($45.24K). It opened 1 new positions.

What did Platt Investment Counsel, LLC sell in Q3 2026?

Its largest sales by value were Tesla, Inc. ($10.64K). It exited 0 positions entirely.

Where does this data come from?

From the Form 13F-HR reports Platt Investment Counsel, LLC files with the SEC each quarter, within 45 days of quarter end. A 13F lists long positions in US-listed equities and options; it excludes short positions, cash, bonds and most non-US holdings.

Similar-Sized Institutions

by reported 13F value

13F data reflects long positions in US-listed equities and options as reported to the SEC up to 45 days after quarter end. It excludes short positions, cash, bonds and most non-US securities, so it is not a complete picture of a manager’s assets.