Form 13-F position report

THUMZUP MEDIA CORPORATION

Reported by Tower Research Capital LLC TRC

TZUP CUSIP 88604J103 Manager CIK 0001533421

Reported 786 shares, down 244 (23.7%) from the prior quarter.

Reported value 32.4%; share count -23.7% vs. the prior quarter.

Reduced
% of reported 13F value < 0.01% This manager · Q2 2025
Shares 786 Quarter-end amount reported
Reported value $5,510 Fair value at quarter end
Consecutive quarters held 3 Through Q2 2025

Reported position value by quarter

Reported position value by quarter

Each bar is a Form 13-F quarter-end snapshot. It does not show trades made within the quarter.

Reported position value by quarter
Date Holding Value
2024-12-31 5677
2025-03-31 4161
2025-06-30 5510
2025-09-30 3465
2025-12-31 0

Quarterly position history

How this manager's reported quarter-end position changed over time.

5 quarters
Quarterly reported position history for THUMZUP MEDIA CORPORATION held by Tower Research Capital LLC TRC.
Quarter Activity Shares Change % of reported 13F Reported value Filed Source filing
Q4 2025 Reduced 0 -693 (-100.0%) 0 $0 2026-02-17
Q3 2025 Reduced 693 -93 (-11.8%) < 0.01% $3,465 2025-11-14
Q2 2025 Reduced 786 -244 (-23.7%) < 0.01% $5,510 2025-08-15
Q1 2025 Reduced 1,030 -625 (-37.8%) < 0.01% $4,161 2025-05-15
Q4 2024 New 1,655 +1,655 (0.0%) < 0.01% $5,677 2025-02-13

Who else reported the position

13 managers reported THUMZUP MEDIA CORPORATION for Q2 2025.

Managers reporting THUMZUP MEDIA CORPORATION in Q2 2025.
Manager Activity Shares Change % of reported 13F Reported value Tenure
VANGUARD GROUP INC Added 56,503 +31,968 < 0.01% $396,086 2 qtrs
GEODE CAPITAL MANAGEMENT LLC Added 43,596 +9,371 < 0.01% $305,607 3 qtrs
KESTRA PRIVATE WEALTH SERVICES LLC Reduced 36,600 -2,700 < 0.01% $256,566 3 qtrs
MARSHALL WACE LLP New 29,576 +29,576 < 0.01% $207,326 1 qtr
UBS Group AG New 15,443 +15,443 < 0.01% $108,256 3 qtrs
ROYAL BANK OF CANADA New 10,121 +10,121 < 0.01% $71,000 1 qtr
BlackRock Inc New 6,706 +6,706 < 0.01% $47,009 1 qtr
UMA Financial Services Inc New 2,600 +2,600 < 0.01% $18,226 1 qtr
Tower Research Capital LLC TRC This report Reduced 786 -244 < 0.01% $5,510 3 qtrs
Fortitude Family Office LLC New 81 +81 < 0.01% $568 1 qtr
Premium adds each manager's conviction percentile across reporting peers.
Filing details and methodology As reported
Report period
June 30, 2025
Filed
August 15, 2025
Filing type
13F-HR
Position type
COM

Voting authority reported

Sole
786
Shared
0
None
0

“None” means the manager reported no voting authority for those shares on non-routine matters. It does not disclose why and is not evidence of securities lending.

Form 13-F is a delayed quarter-end snapshot of disclosed long Section 13(f) securities. It can be filed up to 45 days after quarter end, excludes short positions and most non-U.S. securities, and does not reveal intra-quarter trading. For options, reported shares and value describe the underlying-share exposure; strike, expiry, premium, and written positions are not disclosed.