Vault-13

PERSONALIS INC PSNL

COM · Common Stock · CUSIP 71535D106

Company in Menlo Park, United States

70 institutional holders -2 vs Q1 2024
21,071,45721.1m shares reported held*
39.7% of all shares outstanding*
$24.7mreported value*
7 new 11 added 30 reduced 9 sold out net sold ≈ $648.5k (-554.3k shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($1.0m this quarter). Holder counts are more reliable. Shares outstanding: 53.1m as of 2024-08-01, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $1.17. Options: 4 managers hold calls ($34.5k notional), 1 hold puts ($0).

Trends to Q2 2024

Institutional holders

Managers reporting a position, each quarter

050100Q3 22: 81Q4 22: 81Q1 23: 64Q2 23: 67Q3 23: 64Q4 23: 70Q1 24: 72Q2 24: 7070Q3 22Q1 23Q3 23Q1 24Q2 24
Numbers
QuarterHolders
Q3 202281
Q4 202281
Q1 202364
Q2 202367
Q3 202364
Q4 202370
Q1 202472
Q2 202470

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
50050Q4 22: 41 bought or addedQ4 22: 42 cut or sold outQ4 22Q1 23: 33 bought or addedQ1 23: 40 cut or sold outQ2 23: 25 bought or addedQ2 23: 31 cut or sold outQ2 23Q3 23: 18 bought or addedQ3 23: 34 cut or sold outQ4 23: 32 bought or addedQ4 23: 26 cut or sold outQ4 23Q1 24: 35 bought or addedQ1 24: 29 cut or sold outQ2 24: 18 bought or addedQ2 24: 39 cut or sold outQ2 24
Numbers
QuarterBought or addedCut or sold out
Q4 20224142
Q1 20233340
Q2 20232531
Q3 20231834
Q4 20233226
Q1 20243529
Q2 20241839

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$10k$20k$30k$40kQ3 23 calls: $0Q3 23 puts: $1.2kQ3 23P/C —Q4 23 calls: $21.2kQ4 23 puts: $0Q4 23P/C 0.00Q1 24 calls: $4.2kQ1 24 puts: $745Q1 24P/C 0.18Q2 24 calls: $34.5kQ2 24 puts: $0Q2 24P/C 0.00
Numbers
QuarterCallsPutsP/C
Q3 2023$0$1.2k—
Q4 2023$21.2k$00.00
Q1 2024$4.2k$7450.18
Q2 2024$34.5k$00.00

Biggest buyers

ARK Investment Management LLC Added +296,413+296.4k
PERKINS CAPITAL MANAGEMENT INC New +257,307+257.3k
SUSQUEHANNA INTERNATIONAL GROUP, LLP Added +121,256+121.3k
UBS Group AG Added +76,748+76.7k
ACADIAN ASSET MANAGEMENT LLC Added +66,128+66.1k
Balyasny Asset Management L.P. New +65,895+65.9k
HOWLAND CAPITAL MANAGEMENT LLC Added +51,490+51.5k
STIFEL FINANCIAL CORP New +30,000+30.0k
GEODE CAPITAL MANAGEMENT, LLC Added +20,380+20.4k
D. E. Shaw & Co., Inc. Added +14,057+14.1k

Biggest sellers

MORGAN STANLEY Reduced -233,272-233.3k
Man Group plc Reduced -189,718-189.7k
CITADEL ADVISORS LLC Reduced -152,296-152.3k
MILLENNIUM MANAGEMENT LLC Reduced -112,873-112.9k
MARSHALL WACE, LLP Reduced -101,050-101.0k
XTX Topco Ltd Reduced -100,646-100.6k
Sumitomo Mitsui Trust Group, Inc. Reduced -92,217-92.2k
Amova Asset Management Americas, Inc. Reduced -92,217-92.2k
JACOBS LEVY EQUITY MANAGEMENT, INC Reduced -86,652-86.7k
Squarepoint Ops LLC Sold out -81,542-81.5k

Biggest calls

CITADEL ADVISORS LLC Added $32.2k27.5k shares
GROUP ONE TRADING LLC Unchanged $2.3k2.0k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares
SIMPLEX TRADING, LLC Unchanged $0200 shares

Biggest puts

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
Merck & Co., Inc. 13G · passive investor new · filed 2024-12-23 16.5% new 14.0m≈ $188.2m 2024-12-23
Tempus AI, Inc. 13D · may seek influence -1.9 pts · filed 2026-07-21
Stated purposeMerger Agreement Following conclusion of confidential preliminary discussions between the Issuer and Tempus, and in response to the Issuer's request for Tempus to submit a proposal, on July 19, 2026, Tempus submitted a non-binding proposal to acquire all of the outstanding Common Stock of the Issuer. On July 20, 2026, Tempus entered into an Agreement and Plan of Merger (the "Merger Agreement") with the Issuer, Aviary Development, Inc., a Delaware corporation and a direct, wholly owned subsidiary of Tempus ("Merger Sub I") and Toucan Development, LLC, a Nevada limited liability company and a direct, wholly owned subsidiary of Tempus ("Merger Sub II" and, together with Merger Sub I, the "Merger Subs"). Pursuant to the Merger Agreement, and upon the terms and subject to the conditions therei… Full filing
12.6% -1.9 pts 13.2m≈ $176.7m 2026-07-21
ARK Investment Management LLC 13G · institution -1.4 pts · filed 2025-05-14 8.1% -1.4 pts 7.2m≈ $96.3m 2025-05-14
BlackRock, Inc. 13G · institution +2.4 pts · filed 2026-07-29 5.9% +2.4 pts 6.2m≈ $82.7m 2026-07-29
AMERIPRISE FINANCIAL INC 13G · institution -1.3 pts · filed 2026-08-14 5.8% -1.3 pts 6.1m≈ $81.6m 2026-08-14

Fell to 5% or below in the last year: KEYWELL BRADLEY A (3.5%, 2026-10-28), Deep Track Capital, LP (3.8%, 2026-08-14), Lightspeed Venture Partners Select IV, L.P. (2.0%, 2026-06-10), T. Rowe Price Investment Management, Inc. (4.5%, 2026-04-08), HIRSCHMAN ORIN (3.8%, 2026-01-29), Red Sky Ventures LLC (4.7%, 2025-11-13)

Insider purchases and sales in Q2 2024

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
404Q3 22: 0 buyingQ3 22: 2 sellingQ4 22: 0 buyingQ4 22: 3 sellingQ4 22Q1 23: 0 buyingQ1 23: 2 sellingQ2 23: 0 buyingQ2 23: 3 sellingQ2 23Q3 23: 0 buyingQ3 23: 2 sellingQ4 23: 0 buyingQ4 23: 4 sellingQ4 23Q1 24: 1 buyingQ1 24: 2 sellingQ2 24: 0 buyingQ2 24: 3 sellingQ2 24
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q3 20220—2$35.3k—
Q4 20220—3$58.5k—
Q1 20230—2$17.8k—
Q2 20230—3$47.3k—
Q3 20230—2$2.6k—
Q4 20230—4$42.2k—
Q1 20241$16.7k2$1.7k—
Q2 20240—3$29.5k—
DateInsiderTradeSharesPrice ValueTheir holding
2024-06-17 Tachibana Aaron CFO AND COO Sold 7,176 $1.29 $9.3k7.2k shares -4%
2024-06-17 Chen Richard CHIEF MEDICAL OFFICER AND EVP Sold 5,055 $1.29 $6.5k5.1k shares -4%
2024-06-17 Moore Stephen Michael SVP and Chief Legal Officer Sold 1,585 $1.29 $2.0k1.6k shares -2%
2024-05-17 Moore Stephen Michael SVP and Chief Legal Officer Sold 1,731 $1.38 $2.4k1.7k shares -2%
2024-05-17 Tachibana Aaron CFO AND COO Sold 1,333 $1.38 $1.8k1.3k shares -1%
2024-05-17 Chen Richard CHIEF MEDICAL OFFICER AND EVP Sold 940 $1.38 $1.3k940 shares -1%
2024-04-30 Moore Stephen Michael SVP and Chief Legal Officer Sold 4,523 $1.37 $6.2k4.5k shares -6%

Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).

Holders, Q2 2024

#ManagerLocationShares Value% of their portfolioChangeShares change
1 ARK Investment Management LLC 0.07% of their portfolio ST. PETERSBURG, FL 6,361,8866.4m $7.4m $7.4m 0.07% Added +296.4k +296,413
2 BlackRock Inc. 0.00% of their portfolio New York, NY 3,292,1133.3m $3.9m $3.9m 0.00% Added +11.4k +11,392
3 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 1,904,1651.9m $2.2m $2.2m 0.00% Unchanged
4 ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio Boston, MA 1,057,9561.1m $1.2m $1.2m 0.00% Added +66.1k +66,128
5 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 1,029,3111.0m $1.2m $1.2m 0.00% Reduced -68.2k -68,200
6 Sumitomo Mitsui Trust Group, Inc. 0.00% of their portfolio CHIYODA-KU, TOKYO, M0 885,417885.4k $1.0m $1.0m 0.00% Reduced -92.2k -92,217
7 Amova Asset Management Americas, Inc. 0.01% of their portfolio New York, NY 885,417885.4k $1.0m $1.0m 0.01% Reduced -92.2k -92,217
8 JACOBS LEVY EQUITY MANAGEMENT, INC 0.00% of their portfolio FLORHAM PARK, NJ 735,005735.0k $860.0k $860.0k 0.00% Reduced -86.7k -86,652
9 STATE OF MICHIGAN RETIREMENT SYSTEM 0.00% of their portfolio EAST LANSING, MI 493,798493.8k $577.7k $577.7k 0.00% Unchanged
10 Wellington Shields Capital Management, LLC 0.09% of their portfolio NEW YORK, NY 436,931436.9k $511.2k $511.2k 0.09% Unchanged
11 GSA CAPITAL PARTNERS LLP 0.03% of their portfolio LONDON, X0 426,876426.9k $499.0k $499.0k 0.03% Added +6.7k +6,735
12 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 415,402415.4k $486.1k $486.1k 0.00% Added +20.4k +20,380
13 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 355,241355.2k $415.6k $415.6k 0.00% Reduced -152.3k -152,296
14 Bruce & Co., Inc. 0.12% of their portfolio CHICAGO, IL 300,000300.0k $351.0k $351.0k 0.12% Unchanged
15 Wellington Shields & Co., LLC 0.11% of their portfolio NEW YORK, NY 292,489292.5k $342.2k $342.2k 0.11% Reduced -1.6k -1,608
16 HOWLAND CAPITAL MANAGEMENT LLC 0.01% of their portfolio BOSTON, MA 262,608262.6k $307.3k $307.3k 0.01% Added +51.5k +51,490
17 PERKINS CAPITAL MANAGEMENT INC 0.28% of their portfolio WAYZATA, MN 257,307257.3k $301.0k $301.0k 0.28% New
18 D. E. Shaw & Co., Inc. 0.00% of their portfolio New York, NY 195,352195.4k $228.6k $228.6k 0.00% Added +14.1k +14,057
19 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 191,228191.2k $223.7k $223.7k 0.00% Reduced -19.8k -19,800
20 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 138,560138.6k $162.1k $162.1k 0.00% Added +121.3k +121,256
21 BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.00% of their portfolio HOUSTON, TX 135,600135.6k $158.7k $158.7k 0.00% Unchanged
22 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 130,242130.2k $152.4k $152.4k 0.00% Unchanged
23 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 126,446126.4k $147.9k $147.9k 0.00% Reduced -233.3k -233,272
24 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 120,864120.9k $141.4k $141.4k 0.00% Reduced -112.9k -112,873
25 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 109,852109.9k $128.5k $128.5k 0.00% Reduced -101.0k -101,050
26 Green Alpha Advisors, LLC 0.10% of their portfolio NIWOT, CO 108,591108.6k $127.1k $127.1k 0.10% Reduced -10.4k -10,362
27 Man Group plc 0.00% of their portfolio LONDON, X0 102,451102.5k $119.9k $119.9k 0.00% Reduced -189.7k -189,718
28 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 95,00095.0k $112.0k $112.0k 0.00% Unchanged
29 TWO SIGMA ADVISERS, LP 0.00% of their portfolio NEW YORK, NY 88,40088.4k $103.4k $103.4k 0.00% Reduced -16.5k -16,500
30 UBS Group AG 0.00% of their portfolio ZURICH, V8 87,95988.0k $102.9k $102.9k 0.00% Added +76.7k +76,748
31 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 75,89175.9k $89.0k $89.0k 0.00% Unchanged
32 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 75,37375.4k $88.2k $88.2k 0.00% Reduced -10.2k -10,217
33 Balyasny Asset Management L.P. 0.00% of their portfolio Chicago, IL 65,89565.9k $77.1k $77.1k 0.00% New
34 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 64,61064.6k $75.6k $75.6k 0.00% Added +1.1k +1,059
35 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 56,11656.1k $65.7k $65.7k 0.00% Reduced -18.4k -18,442
36 Connor, Clark & Lunn Investment Management Ltd. 0.00% of their portfolio VANCOUVER, A1 54,82354.8k $64.1k $64.1k 0.00% Reduced -9.6k -9,590
37 HSBC HOLDINGS PLC 0.00% of their portfolio LONDON, X0 45,46545.5k $54.1k $54.1k 0.00% Unchanged
38 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 45,02445.0k $52.7k $52.7k 0.00% Unchanged
39 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 44,81544.8k $52.4k $52.4k 0.00% Reduced -27.6k -27,558
40 Pathstone Holdings, LLC 0.00% of their portfolio ENGLEWOOD, NJ 35,52835.5k $41.6k $41.6k 0.00% Reduced -485 -485
41 PRUDENTIAL FINANCIAL INC 0.00% of their portfolio NEWARK, NJ 33,75033.8k $39.5k $39.5k 0.00% Unchanged
42 STIFEL FINANCIAL CORP 0.00% of their portfolio ST. LOUIS, MO 30,00030.0k $35.1k $35.1k 0.00% New
43 XTX Topco Ltd 0.00% of their portfolio LONDON, X0 28,91228.9k $33.8k $33.8k 0.00% Reduced -100.6k -100,646
44 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 28,87228.9k $33.8k $33.8k 0.00% Reduced -11.1k -11,076
45 Prime Capital Investment Advisors, LLC 0.00% of their portfolio OVERLAND PARK, KS 27,67327.7k $32.4k $32.4k 0.00% Reduced -441 -441
46 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 26,50526.5k $31.0k $31.0k 0.00% Added +1.5k +1,479
47 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 22,94122.9k $26.8k $26.8k 0.00% Unchanged
48 IEQ CAPITAL, LLC 0.00% of their portfolio Foster City, CA 22,00022.0k $25.7k $25.7k 0.00% Unchanged
49 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 18,64418.6k $21.8k $21.8k 0.00% Reduced -2.5k -2,500
50 Parallel Advisors, LLC 0.00% of their portfolio SAN FRANCISCO, CA 16,52216.5k $19.3k $19.3k 0.00% Unchanged
51 Board of Trustees of The Leland Stanford Junior University 0.00% of their portfolio STANFORD, CA 15,79015.8k $18.5k $18.5k 0.00% Reduced -3.2k -3,158
52 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 15,50715.5k $18.1k $18.1k 0.00% Reduced -605 -605
53 HoyleCohen, LLC 0.00% of their portfolio SAN DIEGO, CA 15,37315.4k $18.0k $18.0k 0.00% Unchanged
54 Banque Cantonale Vaudoise 0.00% of their portfolio LAUSANNE, V8 15,00015.0k $18.0k $18.0k 0.00% Unchanged
55 Freedom Investment Management, Inc. 0.00% of their portfolio SOUTH WINDSOR, CT 12,50212.5k $14.6k $14.6k 0.00% New
56 IQ EQ FUND MANAGEMENT (IRELAND) Ltd 0.00% of their portfolio DUBLIN 2, L2 10,59910.6k $12.4k $12.4k 0.00% New
57 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.00% of their portfolio COLUMBUS, OH 9,1239.1k $10.7k $10.7k 0.00% Reduced -10.6k -10,577
58 US BANCORP \DE\ 0.00% of their portfolio MINNEAPOLIS, MN 5,1005.1k $6.0k $6.0k 0.00% Reduced -4.0k -4,000
59 Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio ZURICH, V8 4,3444.3k $5.1k $5.1k 0.00% Reduced -679 -679
60 INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC 0.00% of their portfolio ORLANDO, FL 3,9003.9k $4.6k $4.6k 0.00% New
61 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 3,7093.7k $4.3k $4.3k 0.00% Unchanged
62 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 1,9512.0k $2.3k $2.3k 0.00% Reduced -1.5k -1,500
63 WR Wealth Planners, LLC 0.00% of their portfolio COLUMBIA, MO 1,2001.2k $1.4k $1.4k 0.00% Unchanged
64 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 400400 $468 $468 0.00% Unchanged
65 PRINCIPAL SECURITIES, INC. 0.00% of their portfolio DES MOINES, IA 205205 $240 $240 0.00% Reduced -26 -26
66 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 135135 $158 $158 0.00% Unchanged
67 Qube Research & Technologies Ltd 0.00% of their portfolio LONDON, X0 109109 $128 $128 0.00% Reduced -3.1k -3,107
68 Redwood Wealth Management Group, LLC 0.00% of their portfolio MEDFORD, NJ 100100 $117 $117 0.00% New
69 GROUP ONE TRADING LLC 0.00% of their portfolio CHICAGO, IL 11 $1 $1 0.00% Unchanged
70 CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio BIRMINGHAM, AL 00 $0 $0 0.00% Unchanged