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Yvonne Wassenaar

CIK 1707744 · last filed 2026-09-03

Yvonne Wassenaar is a corporate insider who has filed 102 SEC Form 4 insider transactions across 7 companies since 2017. The most recent filing, for RBRK, was dated Sep 3, 2026. Across all open-market trades the lifetime net is −$3.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $4.7M across reported positions. 5 SEC filings were submitted jointly with Braze, Inc.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$4.71M

Companies

7

Total Filings

102

Lifetime Open-Market Net

-$3.25M

Filer Profile

Reported Address
C/O FORRESTER RESEARCH, INC.
60 ACORN PARK DRIVE
CAMBRIDGE, MA 02140
Related Filers
Braze, Inc. — 5 joint filings, latest 2026-07-02
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
RBRK Director 3,709 $86.65 $321.4K -$1.59M 16 2026-09-03
ANET Director 10,322 $199.59 $2.06M -$1.05M 34 2026-08-24
BRZE Director 18,513 $23.94 $443.2K $0 4 2026-07-02
FROG Director 18,031 $87.18 $1.57M -$544.9K 14 2026-06-11
FORR Director 26,423 $11.75 $310.5K -$60.0K 9 2024-06-04
Anaplan, Inc. (PLAN) Delisted Director 10,017 $63.73 $638.4K $0 5 2022-06-17
MULESOFT, INC (MULE) Delisted Director 0 — — $0 2 2018-05-03

Recent Filings

102 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-09-03 RBRK Notice (144) −2,163 -$188.6K EDGAR
2026-09-03 RBRK Mixed −208 -$64.5K EDGAR
2026-08-24 ANET Exer (M) +538 $0 EDGAR
2026-08-04 RBRK Sell (S) −721 -$54.1K EDGAR
2026-07-02 BRZE Grant (A) +7,753 $0 EDGAR
2026-07-01 RBRK Sell (S) −721 -$58.8K EDGAR
2026-06-24 RBRK Sell (S) −676 -$50.7K EDGAR
2026-06-11 FROG Gift (G) −3,913 $0 EDGAR
2026-06-03 RBRK Mixed +3,709 -$58.2K EDGAR
2026-06-02 ANET Grant (A) — $0 EDGAR
Showing 1–10 of 102
Page 1 of 11
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.