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Tempus AI, Inc. is the issuer in an amended Schedule 13G that identifies Bradley A. Keywell as beneficially owning 6,071,744 Class A shares. The reported interests are held through a grantor retained annuity trust, BK TL21 LLC, The Keywell Foundation Inc. and Churchill Investments 21 LLC. The report lists Mr. Keywell with shared voting and dispositive power over 6,071,744 shares. His reported ownership is 3.46%, based on 175,390,967 Class A shares outstanding as of July 24, 2026.
Key Figures
Beneficial ownership:6,071,744 sharesReported ownership percentage:3.46%Class A shares outstanding:175,390,967 shares+4 more
7 metrics
Beneficial ownership6,071,744 sharesBradley A. Keywell's reported Class A share position
Reported ownership percentage3.46%Based on Class A shares outstanding as of July 24, 2026
Class A shares outstanding175,390,967 sharesAs of July 24, 2026
Grantor retained annuity trust shares195,160 sharesShares held indirectly by Bradley A. Keywell
BK TL21 LLC shares2,213,198 sharesHeld directly by BK TL21 LLC
The Keywell Foundation Inc. shares357,900 sharesHeld directly by the foundation
Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.
shared voting powerregulatory
"Shared voting power: Mr. Keywell - 6,071,744"
Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.
dispositive powerregulatory
"Shared power to dispose or to direct the disposition"
Dispositive power is the authority to decide the final outcome of an asset, legal claim, contract, or corporate action — in effect the power to dispose of or resolve something. For investors it matters because whoever holds that authority can determine who gets paid, who controls an asset or vote, and how risks and returns are allocated; think of it like holding the key that lets you lock in the winner or loser in a deal.
grantor retained annuity trustfinancial
"shares indirectly through a grantor retained annuity trust"
A grantor retained annuity trust (GRAT) is an estate-planning tool where the person who creates the trust transfers assets into it but receives fixed cash payments (an annuity) from the trust for a set number of years; whatever remains after that term passes to designated beneficiaries. It matters to investors because it can shift future appreciation of assets out of the creator’s taxable estate—like putting an asset into a timed vending machine that pays you fixed amounts while any extra value that grows inside the machine goes to heirs with reduced gift or estate tax consequences.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
How many TEM shares does Bradley A. Keywell report owning?
Bradley A. Keywell reports beneficial ownership of 6,071,744 Class A shares.
What percentage of TEM does the reported position represent?
The reported position represents 3.46%, based on 175,390,967 Class A shares outstanding as of July 24, 2026.
How are Bradley A. Keywell's TEM shares held?
The reported interests include 195,160 shares through a grantor retained annuity trust, 2,213,198 shares held directly by BK TL21 LLC, 357,900 shares held directly by The Keywell Foundation Inc. and 3,305,486 shares held directly by Churchill Investments 21 LLC.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(Amendment No. 2)
Tempus Al, Inc.
(Name of Issuer)
Class A Common Stock, par value $0.0001 per share
(Title of Class of Securities)
71535D106
(CUSIP Number)
06/18/2025
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Rule 13d-1(b)
Rule 13d-1(c)
Rule 13d-1(d)
schemaVersion:
SCHEDULE 13G
CUSIP Number(s):
71535D106
1
Names of Reporting Persons
Bradley A. Keywell
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
UNITED STATES
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
6,071,744.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
6,071,744.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
6,071,744.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
3.46 %
12
Type of Reporting Person (See Instructions)
IN
Comment for Type of Reporting Person: Mr. Keywell holds these shares indirectly through (i) a grantor retained annuity trust (195,160 shares); (ii) The Keywell Foundation, Inc., a Delaware corporation of which he is President ("KF"). As such, he has sole voting and dispositive power of the shares held by KF; and (iii) BK TL21 LLC, a Delaware limited liability company ("BK") of which he is the sole member and manager. As such, Mr. Keywell holds shared voting and dispositive power over the shares owned by BK; and Churchill Investments 21 LLC, a Delaware limited liability company ("CI"). Mr. Keywell is the managing member of the managing member of CI and as such has shared voting and dispositive control over these shares. The percentage is based on 175,390,967 shares of the issuer's Class A Common Stock, par value $0.0001 per share, outstanding as of July 24, 2026 as reported in the issuer's Quarterly Report on Form 10-Q filed on July 30, 2026.
SCHEDULE 13G
CUSIP Number(s):
71535D106
1
Names of Reporting Persons
BK TL21 LLC
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
2,213,198.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
2,213,198.00
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
2,213,198.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
1.26 %
12
Type of Reporting Person (See Instructions)
CO
Comment for Type of Reporting Person: BK holds these shares directly, and as such, BK holds sole voting and dispositive power over the shares. The percentage is based on 175,390,967 shares of the issuer's Class A Common Stock, par value $0.0001 per share, outstanding as of July 24, 2026 as reported in the issuer's Quarterly Report on Form 10-Q filed on July 30, 2026.
SCHEDULE 13G
CUSIP Number(s):
71535D106
1
Names of Reporting Persons
The Keywell Foundation Inc
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
357,900.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
357,900.00
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
357,900.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
0.02 %
12
Type of Reporting Person (See Instructions)
OO
Comment for Type of Reporting Person: KF holds these shares directly, and Mr. Keywell as President holds sole voting and dispositive power over these shares. The percentage is based on 175,390,967 shares of the issuer's Class A Common Stock, par value $0.0001 per share, outstanding as of July 24, 2026 as reported in the issuer's Quarterly Report on Form 10-Q filed on July 30, 2026.
SCHEDULE 13G
CUSIP Number(s):
71535D106
1
Names of Reporting Persons
Churchill Investments 21 LLC
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
3,305,486.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
3,305,486.00
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
3,305,486.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
1.88 %
12
Type of Reporting Person (See Instructions)
CO
Comment for Type of Reporting Person: CF holds these shares directly. Mr. Keywell is the managing member of the managing member of CI and as such has shared voting and dispositive control over these shares. The percentage is based on 175,390,967 shares of the issuer's Class A Common Stock, par value $0.0001 per share, outstanding as of July 24, 2026 as reported in the issuer's Quarterly Report on Form 10-Q filed on July 30, 2026.
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
Tempus Al, Inc.
(b)
Address of issuer's principal executive offices:
600 West Chicago Avenue, Suite 510, Chicago, IL, 60654
Item 2.
(a)
Name of person filing:
Bradley A. Keywell ("Mr. Keywell"), BK TL21 LLC ("BK"), The Keywell Foundation Inc ("KF") and Churchill Investments 21 LLC ("CI") each a "Reporting Person".
(b)
Address or principal business office or, if none, residence:
Each Reporting Person's principal business address is: 718 Thompson Lane #108-274, Nashville, TN 37204.
(c)
Citizenship:
Mr. Keywell is a US citizen, BK is a Delaware limited liability company, KF is a Delaware Corporation and CI is a Delaware limited liability company.
(d)
Title of class of securities:
Class A Common Stock, par value $0.0001 per share
(e)
CUSIP No.:
71535D106
Item 3.
If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)
Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)
Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)
Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)
Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)
An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)
An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)
A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)
A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)
A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)
A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
please specify the type of institution:
(k)
Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.
Ownership
(a)
Amount beneficially owned:
6,071,744 shares of Class A Common Stock, par value $0.0001.
(b)
Percent of class:
Less than 5%
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
Mr. Keywell - 0.00 BK - 0.00
(ii) Shared power to vote or to direct the vote:
Mr. Keywell - 6,071,744 BK - 2,213,198 KF - 357,900 CI - 3,305,486
(iii) Sole power to dispose or to direct the disposition of:
Mr. Keywell - 0.00 BK - 0.00
(iv) Shared power to dispose or to direct the disposition of:
Mr. Keywell - 6,071,744 BK - 2,213,198 KF - 357,900 CI - 3,305,486
Item 5.
Ownership of 5 Percent or Less of a Class.
Ownership of 5 percent or less of a class
Item 6.
Ownership of more than 5 Percent on Behalf of Another Person.
Not Applicable
Item 7.
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
Not Applicable
Item 8.
Identification and Classification of Members of the Group.
Not Applicable
Item 9.
Notice of Dissolution of Group.
Not Applicable
Item 10.
Certifications:
Not Applicable
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
