Mark Frichtl

CTO · Ouster, Inc.

Rank #3,723 SEC EDGAR (United States) ↗ Files from United States

Details

Officer of the companyIndustrial Machinery & EquipmentOUSTSEC CIK 0001847596

Computed from SEC EDGAR filings and closing prices — not copied from any wealth ranking. Dataset . How we calculate this.

Disclosed holdings
$23.2M
1-day change
▲ 1.67%
Positions on file
1
issuers disclosed in Forms 3/4/5 and Schedules 13D/G

Disclosed holdings over time 53 weekly points

What the 1 currently disclosed position would have been worth at each week’s closing price. A rising line means the shares got more valuable, not that this person bought more.

How the line is built

Share counts are as last reported to the SEC and held constant; only prices move.

2025-09-05$11.2M – $31.7M2026-09-04

Insider activity Mar 28, 2024 – Mar 25, 2026

Mark Frichtl is recorded in filings to the U.S. SEC via EDGAR as officer of the company, and reported 10 transactions between Mar 28, 2024 and Mar 25, 2026. The buy and sell totals below count only codes P, S.

Why the other codes are excluded

Share awards (A), shares withheld to pay tax (F), option exercises (M) and gifts (G) also appear in the table, but they are consequences of a pay package or a private transfer, not a decision to buy or sell on the open market. Counting them would turn this into a compensation ranking.

Open-market buys (code P)
$148.1K
3 purchases on file priced rows only
Open-market sales (code S)
$2.32M
4 sales on file priced rows only
All reported transactions
10
every code, including awards and exercises
Pattern
Net seller in the final 12 months of the window
last 12 months of the window

Events from filings

Detected automatically in the filings linked below. Each headline is built from the numbers in those filings, not written by a model. Newest first; events older than 45 days stay listed and are marked as older.

Mark Frichtl sold 308,742 Ouster, Inc. (OUST) shares for $12,821,675 on May 26, 2026

Unusual change in a direct holding

Flagged because the change that day in the shares this person holds directly was unusually large compared with their own earlier changes. The rows below are the open-market trades reported that day; under each share count is the balance the filing reports after that line.

Mark Frichtl sold 308,742 Ouster, Inc. (OUST) shares for $12,821,675 on May 26, 2026
Date Insider Transaction Shares Price Value Filing
May 26, 2026 Mark Frichtl S Open-market sale 19,669 held after: 583,997 $39.16 $770,238 SEC filing ↗
May 26, 2026 Mark Frichtl S Open-market sale 76,582 held after: 507,415 $39.94 $3,058,685 SEC filing ↗
May 26, 2026 Mark Frichtl S Open-market sale 70,558 held after: 436,857 $40.90 $2,885,822 SEC filing ↗
May 26, 2026 Mark Frichtl S Open-market sale 48,191 held after: 388,666 $41.99 $2,023,540 SEC filing ↗
May 26, 2026 Mark Frichtl S Open-market sale 45,000 held after: 343,666 $43.00 $1,935,000 SEC filing ↗
May 26, 2026 Mark Frichtl S Open-market sale 45,000 held after: 298,666 $44.00 $1,980,000 SEC filing ↗
May 26, 2026 Mark Frichtl S Open-market sale 3,742 held after: 294,924 $45.00 $168,390 SEC filing ↗

Total of the rows above: $12,821,675, in the currency the filings report.

Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.

3 insiders bought Ouster, Inc. (OUST) shares worth $521,000 between May 15, 2024 and Jun 13, 2024

Cluster buying

3 different insiders made 4 open-market purchases of this company’s shares within a short window. Each row below is one reported trade.

3 insiders bought Ouster, Inc. (OUST) shares worth $521,000 between May 15, 2024 and Jun 13, 2024
Date Insider Transaction Shares Price Value Filing
May 15, 2024 Virginia Boulet P Open-market purchase 10,000 held after: 173,089 $12.20 $122,000 SEC filing ↗
May 15, 2024 Mark Frichtl P Open-market purchase 8,000 held after: 505,076 $12.34 $98,720 SEC filing ↗
May 15, 2024 Charles Angus Pacala P Open-market purchase 16,000 held after: 716,859 $12.33 $197,280 SEC filing ↗
Jun 13, 2024 Virginia Boulet P Open-market purchase 10,000 held after: 183,089 $10.30 $103,000 SEC filing ↗

Total of the rows above: $521,000, in the currency the filings report.

Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.

Reported transactions

Price 0.00 is a real reported figure on gifts (G) and share awards (A) — not a missing number. The 25 most recent rows are grouped into 12 lines by date, company and transaction type — open a line to see every lot with its own source link. We hold 54 on file in total. See the full history on EDGAR ↗

How to read this list

Every row is one line of one Form 4 or Form 5, with the filing it came from. Where the record carries no price at all we leave the cell empty instead of guessing one.

The shares and money on a grouped line add up only the lots listed inside that line, and only when every one of them carries the figure. Where a group mixes more than one reporting currency we leave the money blank rather than convert — no source publishes the rate that conversion would need.

  1. Ouster, Inc. OUST G Bona fide giftnot a buy/sell decisionreported at zero 38,745 shares $0 at $0.00 SEC filing ↗
  2. Ouster, Inc. OUST M Option exercise or conversionnot a buy/sell decision 100,000 shares $1.42M at $14.22 SEC filing ↗
  3. Ouster, Inc. OUST S Open-market sale 18,414 shares $714.8K at $38.82 SEC filing ↗
  4. Ouster, Inc. OUST S Open-market sale × 7 308,742 shares $12.82M
    The 7 lots that make up this line, each with the source behind it.
    Shares Price Value Filing
    3,742 $45.00 $168.4K SEC filing ↗
    45,000 $44.00 $1.98M SEC filing ↗
    45,000 $43.00 $1.94M SEC filing ↗
    48,191 $41.99 $2.02M SEC filing ↗
    70,558 $40.90 $2.89M SEC filing ↗
    76,582 $39.94 $3.06M SEC filing ↗
    19,669 $39.16 $770.2K SEC filing ↗
  5. Ouster, Inc. OUST S Open-market sale × 2 75,684 shares $2.78M
    The 2 lots that make up this line, each with the source behind it.
    Shares Price Value Filing
    40,000 $37.16 $1.49M SEC filing ↗
    35,684 $36.39 $1.30M SEC filing ↗
  6. Ouster, Inc. OUST M Option exercise or conversionnot a buy/sell decision 50,063 shares $711.9K at $14.22 SEC filing ↗
  7. Ouster, Inc. OUST S Open-market sale 4,316 shares $155.4K at $36.00 SEC filing ↗
  8. Ouster, Inc. OUST M Option exercise or conversionnot a buy/sell decision 4,316 shares $61.4K at $14.22 SEC filing ↗
  9. Ouster, Inc. OUST S Open-market sale 40,000 shares $1.40M at $35.00 SEC filing ↗
  10. Ouster, Inc. OUST M Option exercise or conversionnot a buy/sell decision 40,000 shares $568.8K at $14.22 SEC filing ↗
  11. Ouster, Inc. OUST S Open-market sale × 6 136,434 shares $4.44M
    The 6 lots that make up this line, each with the source behind it.
    Shares Price Value Filing
    13,659 $34.00 $464.4K SEC filing ↗
    32,500 $33.00 $1.07M SEC filing ↗
    2,500 $33.00 $82.5K SEC filing ↗
    35,000 $32.00 $1.12M SEC filing ↗
    21,341 $34.00 $725.6K SEC filing ↗
    31,434 $31.09 $977.3K SEC filing ↗
  12. Ouster, Inc. OUST M Option exercise or conversion × 2not a buy/sell decision 52,775 shares $370.4K
    The 2 lots that make up this line, each with the source behind it.
    Shares Price Value Filing
    21,341 $14.22 $303.5K SEC filing ↗
    31,434 $2.13 $67.0K SEC filing ↗

Disclosed holdings

Shares is the amount on the form; value is that amount times the closing price shown. Rows with no closing price are left blank, so they may add up to less than the headline figure.

What is not counted here

Each row is one filing you can open. Private companies, real estate, bonds and crypto are not in SEC insider filings and are therefore not counted here.

Equity positions disclosed to the SEC, with the source filing behind each row.
Issuer Ticker Security Shares Close Value Form Reported Filing
Ouster, Inc. OUST Common Stock 636,882 $36.43 $23.2M 4 EDGAR ↗

Other insiders at the same companies

People who also file with the SEC at a company where Mark Frichtl reports shares.

Sharing a filing does not mean they work together day to day — it means both names appear on the same issuer’s insider record.

Sources

The filings linked in the tables above are the sources for every figure on this page.

Think a number here is wrong? Open the linked filing and compare — how to report it.

Profile record last refreshed Sep 8, 2026.