Vault-13

PERSONALIS INC PSNL

COM · Common Stock · CUSIP 71535D106

Company in Menlo Park, United States

84 institutional holders +14 vs Q2 2024
28,517,67928.5m shares reported held*
40.4% of all shares outstanding*
$153.3mreported value*
23 new 17 added 28 reduced 8 sold out net bought ≈ $41.6m (+7.8m 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 ($4.3m this quarter). Holder counts are more reliable. Shares outstanding: 70.6m as of 2024-10-30, 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 ≈ $5.38. Options: 5 managers hold calls ($182.6k notional), 4 hold puts ($459.5k).

Trends to Q3 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: 70Q3 24: 8484Q3 22Q1 23Q3 23Q1 24Q3 24
Numbers
QuarterHolders
Q3 202281
Q4 202281
Q1 202364
Q2 202367
Q3 202364
Q4 202370
Q1 202472
Q2 202470
Q3 202484

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 outQ1 23: 33 bought or addedQ1 23: 40 cut or sold outQ1 23Q2 23: 25 bought or addedQ2 23: 31 cut or sold outQ3 23: 18 bought or addedQ3 23: 34 cut or sold outQ3 23Q4 23: 32 bought or addedQ4 23: 26 cut or sold outQ1 24: 35 bought or addedQ1 24: 29 cut or sold outQ1 24Q2 24: 18 bought or addedQ2 24: 39 cut or sold outQ3 24: 40 bought or addedQ3 24: 36 cut or sold outQ3 24
Numbers
QuarterBought or addedCut or sold out
Q4 20224142
Q1 20233340
Q2 20232531
Q3 20231834
Q4 20233226
Q1 20243529
Q2 20241839
Q3 20244036

Calls vs puts

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

CallsPuts
$0$200k$400k$600kQ4 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 0.00Q3 24 calls: $182.6kQ3 24 puts: $459.5kQ3 24P/C 2.52
Numbers
QuarterCallsPutsP/C
Q4 2023$21.2k$00.00
Q1 2024$4.2k$7450.18
Q2 2024$34.5k$00.00
Q3 2024$182.6k$459.5k2.52

Biggest buyers

AIGH Capital Management LLC New +3,999,064+4.0m
MILLENNIUM MANAGEMENT LLC Added +2,314,488+2.3m
Blue Water Life Science Advisors, LP New +1,000,000+1.0m
ARK Investment Management LLC Added +723,637+723.6k
MARSHALL WACE, LLP Added +347,124+347.1k
BANK OF AMERICA CORP /DE/ Added +227,494+227.5k
Walleye Capital LLC New +166,788+166.8k
Cubist Systematic Strategies, LLC New +157,239+157.2k
Informed Momentum Co LLC New +143,397+143.4k
Qube Research & Technologies Ltd Added +130,675+130.7k

Biggest sellers

ACADIAN ASSET MANAGEMENT LLC Reduced -549,816-549.8k
JACOBS LEVY EQUITY MANAGEMENT, INC Reduced -329,335-329.3k
CITADEL ADVISORS LLC Reduced -320,251-320.3k
GSA CAPITAL PARTNERS LLP Reduced -302,794-302.8k
D. E. Shaw & Co., Inc. Sold out -195,352-195.4k
RENAISSANCE TECHNOLOGIES LLC Reduced -98,200-98.2k
Sumitomo Mitsui Trust Group, Inc. Reduced -92,809-92.8k
Amova Asset Management Americas, Inc. Reduced -92,809-92.8k
UBS Group AG Reduced -80,882-80.9k
Balyasny Asset Management L.P. Sold out -65,895-65.9k

Biggest calls

CITADEL ADVISORS LLC Reduced $90.9k16.9k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP New $57.0k10.6k shares
SIMPLEX TRADING, LLC Added $26.0k5.0k shares
GROUP ONE TRADING LLC Reduced $8.6k1.6k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Biggest puts

CITADEL ADVISORS LLC New $343.2k63.8k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP New $116.2k21.6k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares
SIMPLEX TRADING, LLC New $0100 shares

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)

Insider purchases and sales in Q3 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
404Q4 22: 0 buyingQ4 22: 3 sellingQ1 23: 0 buyingQ1 23: 2 sellingQ1 23Q2 23: 0 buyingQ2 23: 3 sellingQ3 23: 0 buyingQ3 23: 2 sellingQ3 23Q4 23: 0 buyingQ4 23: 4 sellingQ1 24: 1 buyingQ1 24: 2 sellingQ1 24Q2 24: 0 buyingQ2 24: 3 sellingQ3 24: 0 buyingQ3 24: 2 sellingQ3 24
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
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—
Q3 20240—2$3.8k—
DateInsiderTradeSharesPrice ValueTheir holding
2024-08-16 Tempus AI, Inc. 10% owner Bought 3,500,000 $5.07 $17.7m3.5m shares +38%
2024-07-30 Tachibana Aaron CFO AND COO Sold 742 $2.97 $2.2k742 shares -<1%
2024-07-30 Chen Richard CHIEF MEDICAL OFFICER AND EVP Sold 524 $2.97 $1.6k524 shares -<1%

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, Q3 2024

#ManagerLocationShares Value% of their portfolioChangeShares change
1 ARK Investment Management LLC 0.35% of their portfolio ST. PETERSBURG, FL 7,085,5237.1m $38.1m $38.1m 0.35% Added +723.6k +723,637
2 AIGH Capital Management LLC 10.07% of their portfolio BALTIMORE, MD 3,999,0644.0m $21.5m $21.5m 10.07% New
3 BlackRock, Inc. 0.00% of their portfolio New York, NY 2,915,6832.9m $15.7m $15.7m 0.00% First filing
4 MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio NEW YORK, NY 2,435,3522.4m $13.1m $13.1m 0.01% Added +2.3m +2,314,488
5 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 1,970,5972.0m $10.6m $10.6m 0.00% Added +66.4k +66,432
6 Blue Water Life Science Advisors, LP 4.73% of their portfolio LARKSPUR, CA 1,000,0001.0m $5.4m $5.4m 4.73% New
7 RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio NEW YORK, NY 931,111931.1k $5.0m $5.0m 0.01% Reduced -98.2k -98,200
8 Sumitomo Mitsui Trust Group, Inc. 0.00% of their portfolio CHIYODA-KU, TOKYO, M0 792,608792.6k $4.3m $4.3m 0.00% Reduced -92.8k -92,809
9 Amova Asset Management Americas, Inc. 0.05% of their portfolio New York, NY 792,608792.6k $4.3m $4.3m 0.05% Reduced -92.8k -92,809
10 ACADIAN ASSET MANAGEMENT LLC 0.01% of their portfolio Boston, MA 508,140508.1k $2.7m $2.7m 0.01% Reduced -549.8k -549,816
11 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 498,470498.5k $2.7m $2.7m 0.00% Added +83.1k +83,068
12 STATE OF MICHIGAN RETIREMENT SYSTEM 0.01% of their portfolio EAST LANSING, MI 493,798493.8k $2.7m $2.7m 0.01% Unchanged
13 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 456,976457.0k $2.5m $2.5m 0.00% Added +347.1k +347,124
14 Wellington Shields Capital Management, LLC 0.40% of their portfolio NEW YORK, NY 432,181432.2k $2.3m $2.3m 0.40% Reduced -4.8k -4,750
15 JACOBS LEVY EQUITY MANAGEMENT, INC 0.01% of their portfolio FLORHAM PARK, NJ 405,670405.7k $2.2m $2.2m 0.01% Reduced -329.3k -329,335
16 Bruce & Co., Inc. 0.47% of their portfolio CHICAGO, IL 300,000300.0k $1.6m $1.6m 0.47% Unchanged
17 Wellington Shields & Co., LLC 0.48% of their portfolio NEW YORK, NY 292,489292.5k $1.6m $1.6m 0.48% Unchanged
18 HOWLAND CAPITAL MANAGEMENT LLC 0.06% of their portfolio BOSTON, MA 262,608262.6k $1.4m $1.4m 0.06% Unchanged
19 PERKINS CAPITAL MANAGEMENT INC 1.30% of their portfolio WAYZATA, MN 257,307257.3k $1.4m $1.4m 1.30% Unchanged
20 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 243,001243.0k $1.3m $1.3m 0.00% Added +227.5k +227,494
21 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 175,142175.1k $942.3k $942.3k 0.00% Added +44.9k +44,900
22 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 167,942167.9k $903.4k $903.4k 0.00% Added +92.6k +92,569
23 Walleye Capital LLC 0.01% of their portfolio NEW YORK, NY 166,788166.8k $897.3k $897.3k 0.01% New
24 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 164,281164.3k $883.8k $883.8k 0.00% Added +99.7k +99,671
25 Cubist Systematic Strategies, LLC 0.01% of their portfolio STAMFORD, CT 157,239157.2k $845.9k $845.9k 0.01% New
26 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 154,761154.8k $832.6k $832.6k 0.00% Added +16.2k +16,201
27 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 150,688150.7k $810.7k $810.7k 0.00% Reduced -40.5k -40,540
28 Informed Momentum Co LLC 0.12% of their portfolio SOLANA BEACH, CA 143,397143.4k $771.5k $771.5k 0.12% New
29 Qube Research & Technologies Ltd 0.00% of their portfolio LONDON, X0 130,784130.8k $703.6k $703.6k 0.00% Added +130.7k +130,675
30 GSA CAPITAL PARTNERS LLP 0.05% of their portfolio LONDON, X0 124,082124.1k $668.0k $668.0k 0.05% Reduced -302.8k -302,794
31 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 108,825108.8k $585.5k $585.5k 0.00% Reduced -17.6k -17,621
32 Connor, Clark & Lunn Investment Management Ltd. 0.00% of their portfolio VANCOUVER, A1 108,788108.8k $585.3k $585.3k 0.00% Added +54.0k +53,965
33 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 95,00095.0k $512.0k $512.0k 0.00% Unchanged
34 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 93,44593.4k $502.7k $502.7k 0.00% Added +37.3k +37,329
35 BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.01% of their portfolio HOUSTON, TX 85,60085.6k $460.5k $460.5k 0.01% Reduced -50.0k -50,000
36 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 78,25978.3k $421.0k $421.0k 0.00% New
37 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 77,47677.5k $418.0k $418.0k 0.00% Added +1.6k +1,585
38 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 75,84975.8k $408.1k $408.1k 0.00% New
39 Centiva Capital, LP 0.02% of their portfolio New York, NY 70,61470.6k $379.9k $379.9k 0.02% New
40 Semanteon Capital Management, LP 0.26% of their portfolio NEWTON, MA 69,63169.6k $374.6k $374.6k 0.26% New
41 Green Alpha Advisors, LLC 0.28% of their portfolio NIWOT, CO 65,51165.5k $352.4k $352.4k 0.28% Reduced -43.1k -43,080
42 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 65,46865.5k $352.2k $352.2k 0.00% Added +20.4k +20,444
43 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 42,49342.5k $228.6k $228.6k 0.00% Reduced -2.3k -2,322
44 Man Group plc 0.00% of their portfolio LONDON, X0 42,40542.4k $228.1k $228.1k 0.00% Reduced -60.0k -60,046
45 HSBC HOLDINGS PLC 0.00% of their portfolio LONDON, X0 40,91840.9k $218.1k $218.1k 0.00% Reduced -4.5k -4,547
46 Quantbot Technologies LP 0.01% of their portfolio NEW YORK, NY 38,95839.0k $209.6k $209.6k 0.01% New
47 ALGERT GLOBAL LLC 0.01% of their portfolio SAN FRANCISCO, CA 35,97036.0k $193.5k $193.5k 0.01% New
48 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 34,99035.0k $188.2k $188.2k 0.00% Reduced -320.3k -320,251
49 Engineers Gate Manager LP 0.00% of their portfolio NEW YORK, NY 29,82229.8k $160.4k $160.4k 0.00% New
50 ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.00% of their portfolio BOSTON, MA 27,46027.5k $147.7k $147.7k 0.00% New
51 TWO SIGMA ADVISERS, LP 0.00% of their portfolio NEW YORK, NY 27,30027.3k $146.9k $146.9k 0.00% Reduced -61.1k -61,100
52 Prime Capital Investment Advisors, LLC 0.00% of their portfolio OVERLAND PARK, KS 26,62626.6k $143.2k $143.2k 0.00% Reduced -1.0k -1,047
53 AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio KANSAS CITY, MO 25,31025.3k $136.2k $136.2k 0.00% New
54 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 24,87224.9k $133.8k $133.8k 0.00% Reduced -4.0k -4,000
55 AJOVista, LLC 0.56% of their portfolio BOSTON, MA 24,52924.5k $132.0k $132.0k 0.56% New
56 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 22,94122.9k $123.4k $123.4k 0.00% Unchanged
57 IEQ CAPITAL, LLC 0.00% of their portfolio Foster City, CA 22,00022.0k $118.4k $118.4k 0.00% Unchanged
58 Graham Capital Management, L.P. 0.00% of their portfolio ROWAYTON, CT 21,22221.2k $114.2k $114.2k 0.00% New
59 INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC 0.01% of their portfolio ORLANDO, FL 20,98221.0k $3.9k $3.9k 0.01% Added +17.1k +17,082
60 STIFEL FINANCIAL CORP 0.00% of their portfolio ST. LOUIS, MO 20,00020.0k $107.6k $107.6k 0.00% Reduced -10.0k -10,000
61 Jefferies Financial Group Inc. 0.00% of their portfolio NEW YORK, NY 19,40019.4k $104.4k $104.4k 0.00% New
62 PRUDENTIAL FINANCIAL INC 0.00% of their portfolio NEWARK, NJ 18,35018.4k $98.7k $98.7k 0.00% Reduced -15.4k -15,400
63 Squarepoint Ops LLC 0.00% of their portfolio NEW YORK, NY 17,02017.0k $91.6k $91.6k 0.00% New
64 Parallel Advisors, LLC 0.00% of their portfolio SAN FRANCISCO, CA 16,52216.5k $88.9k $88.9k 0.00% Unchanged
65 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 16,50416.5k $88.8k $88.8k 0.00% Reduced -2.1k -2,140
66 Focus Partners Wealth 0.00% of their portfolio ST LOUIS, MO 15,53315.5k $83.6k $83.6k 0.00% New
67 Williams Jones Wealth Management, LLC. 0.00% of their portfolio NEW YORK, NY 15,50015.5k $83.4k $83.4k 0.00% New
68 IQ EQ FUND MANAGEMENT (IRELAND) Ltd 0.01% of their portfolio DUBLIN 2, L2 15,10315.1k $81.3k $81.3k 0.01% Added +4.5k +4,504
69 Pathstone Holdings, LLC 0.00% of their portfolio ENGLEWOOD, NJ 14,90514.9k $80.2k $80.2k 0.00% Reduced -20.6k -20,623
70 nVerses Capital, LLC 0.02% of their portfolio WELLINGTON, FL 7,4007.4k $39.8k $39.8k 0.02% New
71 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.00% of their portfolio COLUMBUS, OH 7,2267.2k $38.9k $38.9k 0.00% Reduced -1.9k -1,897
72 UBS Group AG 0.00% of their portfolio ZURICH, V8 7,0777.1k $38.1k $38.1k 0.00% Reduced -80.9k -80,882
73 US BANCORP \DE\ 0.00% of their portfolio MINNEAPOLIS, MN 4,6004.6k $24.7k $24.7k 0.00% Reduced -500 -500
74 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 3,7093.7k $20.0k $20.0k 0.00% Unchanged
75 Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio ZURICH, V8 3,2063.2k $17.2k $17.2k 0.00% Reduced -1.1k -1,138
76 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 1,9512.0k $10.5k $10.5k 0.00% Unchanged
77 WR Wealth Planners, LLC 0.00% of their portfolio COLUMBIA, MO 1,2001.2k $6.5k $6.5k 0.00% Unchanged
78 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 1,0371.0k $5.6k $5.6k 0.00% Reduced -25.5k -25,468
79 Ancora Advisors LLC 0.00% of their portfolio Cleveland, OH 800800 $4.3k $4.3k 0.00% New
80 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 400400 $2.2k $2.2k 0.00% Unchanged
81 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 243243 $1.3k $1.3k 0.00% New
82 PRINCIPAL SECURITIES, INC. 0.00% of their portfolio DES MOINES, IA 195195 $1.0k $1.0k 0.00% Reduced -10 -10
83 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 135135 $726 $726 0.00% Unchanged
84 CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio BIRMINGHAM, AL 00 $0 $0 0.00% Unchanged