DAVID R WALT

CIK 1205236 · last filed 2026-01-06

"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

$119.48M

Companies

4

Total Filings

327

Lifetime Open-Market Net

-$97.57M

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
QTRX Director 1,872,890 $3.10 $5.81M $7.94M 18 2026-01-06
XCUR Director 2,058,777 $2.78 $5.72M $2.35M 3 2020-06-08
Dare Bioscience, Inc. (CERU) Delisted Director 193,700 $436.1K 24 2017-01-05
ILMN Director 670,600 $160.97 $107.95M -$108.29M 279 2016-04-11

Recent Filings · Page 5 of 33

327 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2016-01-21 Dare Bioscience, Inc. (CERU) Delisted Buy (P) +8,900 $21.7K EDGAR
2016-01-19 Dare Bioscience, Inc. (CERU) Delisted Buy (P) +8,572 $21.7K EDGAR
2016-01-14 Dare Bioscience, Inc. (CERU) Delisted Buy (P) +8,684 $24.2K EDGAR
2016-01-12 Dare Bioscience, Inc. (CERU) Delisted Buy (P) +8,855 $25.4K EDGAR
2016-01-08 Dare Bioscience, Inc. (CERU) Delisted Buy (P) +8,800 $26.0K EDGAR
2016-01-06 Dare Bioscience, Inc. (CERU) Delisted Buy (P) +8,801 $26.7K EDGAR
2015-12-07 Dare Bioscience, Inc. (CERU) Delisted Buy (P) +10,000 $37.5K EDGAR
2015-12-02 Dare Bioscience, Inc. (CERU) Delisted Buy (P) +5,374 $17.5K EDGAR
2015-11-30 Dare Bioscience, Inc. (CERU) Delisted Buy (P) +12,117 $40.2K EDGAR
2015-11-12 ILMN Sell (S) −2,000 -$308.1K EDGAR
Showing 4150 of 327
Page 5 of 33
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.