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ISSUER PROFILE · CIK 0001527753

Personalis, Inc.PSNL

3 13D/G filings 3 distinct filers 2 insider transactions (365d)

Post-Filing Returns · across 1 activist filings on this issuer

Median 30d
+0.9%
avg +0.9%
Median 60d
avg —
Median 90d
avg —
Median 180d
avg —

Returns measured from each activist filing's date_of_event, split + dividend adjusted via Yahoo Finance.

Cross-Reference Snapshot

Activist filings
3
2 SCHEDULE 13D/A · 1 SC
Distinct filers
3
multi-activist cluster
Insiders (365d)
2
0 buys · 1 sales
Latest short DTC
2.34
as of 2026-07-15

13D/G Filings Timeline · 3 total

FiledFormFilerStakeSharesIntent
2026-07-21 SCHEDULE 13D/A Tempus AI, Inc. 13,039,067 view →
2026-06-10 SCHEDULE 13D/A Lightspeed Venture Partners Select IV, L.P. 2,084,240 view →
2022-03-07 SC LIGHTSPEED VENTURE PARTNERS VIII LP view →

Form 4 Insider Transactions · last 365d

DateInsiderRoleTypeSharesPriceValue
2026-07-15 Chen Richard officer Option exercise 100,000 $2.44 $244K
2026-07-15 Chen Richard officer Sale 100,000 $15.15 $1.51M

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-07-15 11,097,287 2.34 -1.9%
2026-06-30 11,306,678 2.78 +1.8%
2026-06-15 11,104,630 3.60 -13.4%
2026-05-29 12,825,386 4.30 -6.6%
2026-05-15 13,734,814 5.64 +4.8%
2026-04-30 13,104,403 5.80 +5.7%
2026-04-15 12,394,050 9.48 +5.4%
2026-03-31 11,755,231 7.40 +5.3%
2026-03-13 11,167,937 6.43 -0.3%
2026-02-27 11,206,564 8.75 +4.9%
2026-02-13 10,685,978 8.56 +21.3%
2026-01-30 8,813,216 5.81 +0.9%

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