Home

Cyrus Harmon

CIK 1831410 · Chief Research Officer · last filed 2026-07-27

Cyrus Harmon is a Chief Research Officer who has filed 74 SEC Form 4 insider transactions across 1 company since 2020. The most recent filing shows the insider sold $291.2K of OLMA on Jul 27, 2026. Across all open-market trades the lifetime net is −$6.5M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $8.6M across reported positions.

"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.

Loading insider history…
Disclosed Exposure

$8.55M

Companies

1

Total Filings

74

Lifetime Open-Market Net

-$6.52M

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
OLMA Director 819,798 $10.43 $8.55M -$6.52M 39 2026-07-27

Recent Filings

74 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
2026-07-27 OLMA Sell (S) −25,000 -$291.2K EDGAR
2026-07-24 OLMA Notice (144) −12,500 -$146.4K EDGAR
2026-07-23 OLMA Notice (144) −12,500 -$144.7K EDGAR
2026-06-23 OLMA Grant (A) — $0 EDGAR
2026-01-21 OLMA Sell (S) −10,000 -$268.8K EDGAR
2026-01-20 OLMA Notice (144) −10,000 -$268.8K EDGAR
2026-01-16 OLMA Sell (S) −3,489 -$101.6K EDGAR
2026-01-14 OLMA Notice (144) −3,489 -$101.6K EDGAR
2025-12-29 OLMA Sell (S) −2,881 -$82.2K EDGAR
2025-12-22 OLMA Notice (144) −2,881 -$82.2K EDGAR
Showing 1–10 of 74
Page 1 of 8
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.