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Precision Biosciences (DTIL) officer details stock and RSU holdings

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Form Type
3

Rhea-AI Filing Summary

Mei Zhang Lu, Chief Accounting Officer of Precision Biosciences Inc, reports direct ownership of 5,115 shares of common stock. She also holds fully vested employee stock options covering 945, 214, 403 and 778 shares at exercise prices of 378.0000, 174.9000, 340.2000 and 122.4000, expiring between 2029 and 2032, plus restricted stock units covering 11,288 and 30,129 shares that vest in three substantially equal annual installments beginning on February 24, 2026 and February 22, 2027, respectively.

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Insider Burris Mei Zhang Lu
Role Chielf Accounting Officer
Type Security Shares Price Value
holding Employee Stock Option (Right to Buy) F1 -- -- --
holding Employee Stock Option (Right to Buy) F1 -- -- --
holding Employee Stock Option (Right to Buy) F1 -- -- --
holding Employee Stock Option (Right to Buy) F1 -- -- --
holding Restricted Stock Units F3, F2 -- -- --
holding Restricted Stock Units F3, F4 -- -- --
holding Common Stock -- -- --
Holdings After Transaction: Employee Stock Option (Right to Buy) — 2,340 shares (Direct); Restricted Stock Units — 41,417 shares (Direct); Common Stock — 5,115 shares (Direct)
Footnotes (4)
  1. F1. The stock options are fully vested and exercisable as of the date of this report.
  2. F2. On July 24, 2025, the reporting person was granted 16,932 restricted stock units ("RSUs"), which vest in three substantially equal annual installments beginning on February 24, 2026, subject to the Reporting Person's continued service to the Company through the applicable vesting dates.
  3. F3. The Reporting Person was granted RSUs, which each represents a contingent right to receive one share of the Company's Common Stock.
  4. F4. On June 1, 2026, the reporting person was granted 30,129 RSUs, which vest in three substantially equal annual installments beginning on February 22, 2027, subject to the Reporting Person's continued service to the Company through the applicable vesting dates.
Common stock held 5,115 shares Direct ownership as of 2026-08-01
Option at 378.0000 945 underlying shares; 378.0000 exercise price Fully vested employee stock option expiring 2029-05-01
Option at 174.9000 214 underlying shares; 174.9000 exercise price Fully vested employee stock option expiring 2030-08-20
Option at 340.2000 403 underlying shares; 340.2000 exercise price Fully vested employee stock option expiring 2031-06-06
Option at 122.4000 778 underlying shares; 122.4000 exercise price Fully vested employee stock option expiring 2032-03-02
RSUs from 2025 grant 11,288 RSUs from 16,932-unit grant Grant dated 2025-07-24, vesting in three annual installments from 2026-02-24
RSUs from 2026 grant 30,129 RSUs Grant dated 2026-06-01, vesting in three annual installments from 2027-02-22
Employee Stock Option (Right to Buy) financial
"Security title listed as Employee Stock Option (Right to Buy)"
Restricted Stock Units financial
"Security title listed as Restricted Stock Units linked to common stock"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
contingent right to receive one share financial
"RSUs described as a contingent right to receive one share of common stock"
substantially equal annual installments financial
"RSU grants vest in substantially equal annual installments over three years"

AI-generated analysis. How Rhea-AI works. Not financial advice.

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FAQ

What equity holdings does Mei Zhang Lu report in DTIL?

Mei Zhang Lu reports 5,115 common shares held directly, fully vested stock options on 945, 214, 403 and 778 shares, and restricted stock units covering 11,288 and 30,129 shares of Precision Biosciences common stock in this initial ownership report to the SEC.

How do Mei Zhang Lu’s 16,932 RSUs in DTIL granted July 24, 2025 vest?

A grant of 16,932 RSUs made to Mei Zhang Lu on July 24, 2025 vests in three substantially equal annual installments, beginning on February 24, 2026, subject to her continued service with Precision Biosciences through each applicable vesting date.

What are the vesting terms of the 30,129 RSUs reported by Mei Zhang Lu in DTIL?

Mei Zhang Lu was granted 30,129 RSUs on June 1, 2026. These units vest in three substantially equal annual installments, beginning on February 22, 2027, conditioned on her continued service to Precision Biosciences through each scheduled vesting date.

Are Mei Zhang Lu’s DTIL stock options vested and when do they expire?

All reported employee stock options held by Mei Zhang Lu are fully vested and exercisable as of the report date, with expiration dates on 2029-05-01, 2030-08-20, 2031-06-06 and 2032-03-02 for the respective option grants.

What does each RSU reported by Mei Zhang Lu in DTIL represent?

Each restricted stock unit held by Mei Zhang Lu represents a contingent right to receive one share of Precision Biosciences common stock, meaning shares are delivered only upon satisfaction of the applicable vesting conditions described in the RSU award terms.
SEC Form 3
FORM 3UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0104
Estimated average burden
hours per response:0.5
1. Name and Address of Reporting Person*
Burris Mei Zhang Lu

(Last)(First)(Middle)
C/O PRECISION BIOSCIENCES, INC.
302 E. PETTIGREW STREET, SUITE A-100

(Street)
DURHAM NORTH CAROLINA 27701

(City)(State)(Zip)

UNITED STATES

(Country)
2. Date of Event Requiring Statement (Month/Day/Year)
08/01/2026
3. Issuer Name and Ticker or Trading Symbol
PRECISION BIOSCIENCES INC [ DTIL ]
3a. Foreign Trading Symbol
5. If Amendment, Date of Original Filed (Month/Day/Year)
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
Chielf Accounting Officer
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock5,115D
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year)3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date ExercisableExpiration DateTitleAmount or Number of Shares
Employee Stock Option (Right to Buy) (1)05/01/2029Common Stock945$378D
Employee Stock Option (Right to Buy) (1)08/20/2030Common Stock214$174.9D
Employee Stock Option (Right to Buy) (1)06/06/2031Common Stock403$340.2D
Employee Stock Option (Right to Buy) (1)03/02/2032Common Stock778$122.4D
Restricted Stock Units (2) (2)Common Stock11,288(3)D
Restricted Stock Units (4) (4)Common Stock30,129(3)D
Explanation of Responses:
1. The stock options are fully vested and exercisable as of the date of this report.
2. On July 24, 2025, the reporting person was granted 16,932 restricted stock units ("RSUs"), which vest in three substantially equal annual installments beginning on February 24, 2026, subject to the Reporting Person's continued service to the Company through the applicable vesting dates.
3. The Reporting Person was granted RSUs, which each represents a contingent right to receive one share of the Company's Common Stock.
4. On June 1, 2026, the reporting person was granted 30,129 RSUs, which vest in three substantially equal annual installments beginning on February 22, 2027, subject to the Reporting Person's continued service to the Company through the applicable vesting dates.
Remarks:
Exhibit 24 - Power of Attorney
/s/ Dario Scimeca, Attorney-in-Fact for Mei Burris08/03/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)