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Siddhartha Kadia

CIK 1573666 · President and CEO · last filed 2026-08-17

Siddhartha Kadia is a President and CEO who has filed 27 SEC Form 4 insider transactions across 7 companies since 2013. The most recent filing shows the insider bought $800.1K of MLAB on Aug 17, 2026. Across all open-market trades the lifetime net is +$800.1K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $857.3K across reported positions. 4 SEC filings were submitted jointly with MESA LABORATORIES INC /CO/.

"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

$857.3K

Companies

7

Total Filings

27

Lifetime Open-Market Net

$800.1K

Filer Profile

Reported Address
7475 LUSK BOULEVARD
SAN DIEGO, CA 92121
Related Filers
MESA LABORATORIES INC /CO/ — 4 joint filings, latest 2026-08-17
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
MLAB President and CEO 7,093 $120.87 $857.3K $800.1K 3 2026-08-17
Bruker Cellular Analysis, Inc. (CELL) Delisted Chief Executive Officer 0 $1.00 $0 $0 2 2023-10-03
NUVASIVE INC (NUVA) Delisted Director 0 $39.75 $0 $0 6 2023-09-05
Bruker Cellular Analysis, Inc. (BLI) Delisted Chief Executive Officer 1,240,689 $1.20 $1.49M $0 8 2023-03-07
IsoPlexis Corp (ISO) Delisted Director — $0.76 — $0 1 2022-06-21
NEWP Director 0 $5.88 $0 $0 3 2016-05-02
Volcano Corp (VOLC) Delisted Director 1,777 — — $0 3 2014-03-31

Recent Filings

27 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
2026-08-17 MLAB Buy (P) +7,093 $800.1K EDGAR
2026-05-19 MLAB Grant (A) — $0 EDGAR
2026-04-24 MLAB Grant (A) — $0 EDGAR
2023-10-03 Bruker Cellular Analysis, Inc. (CELL) Delisted Disp (D) −1,240,689 $0 EDGAR
2023-09-05 NUVASIVE INC (NUVA) Delisted Disp (D) −3,739 $0 EDGAR
2023-08-28 Bruker Cellular Analysis, Inc. (CELL) Delisted Gift (G) — $0 EDGAR
2023-06-12 NUVASIVE INC (NUVA) Delisted Grant (A) — $0 EDGAR
2023-03-07 Bruker Cellular Analysis, Inc. (BLI) Delisted Grant (A) +317,029 $0 EDGAR
2022-12-13 Bruker Cellular Analysis, Inc. (BLI) Delisted Tax (F) −36,975 -$97.6K EDGAR
2022-12-09 Bruker Cellular Analysis, Inc. (BLI) Delisted Tax (F) −150 -$379 EDGAR
Showing 1–10 of 27
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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.