Teh Ban Seng

Officer · STX

As of 2026-09-27, Teh Ban Seng has 273 Form 4 transactions on record across 1 company — 177 in the trailing 12 months.

Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.

Pattern in the record: open-market sales filed in September in multiple years since 2024 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.

Reconstructed holdings

Direct $5.3M
Indirect $0

STX

direct

5,810 sh

$5.3M

Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.

Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.

Trades by company

STX · 273 trades

Filing ledger

Date	Company	Action	Shares @ price	Value	Ownership Δ	Owned after	Filing
2026-09-15	STX	Sale	7,259 @ $778.35	$5.7M	−16.9% of holding	35,655	Form 4
2026-09-15	STX	Sale	6,682 @ $779.27	$5.2M	−18.7% of holding	28,973	Form 4
2026-09-15	STX	Sale	4,147 @ $782.56	$3.2M	−16.6% of holding	20,773	Form 4
2026-09-15	STX	Sale	3,987 @ $777.22	$3.1M	−8.5% of holding	42,914	Form 4
2026-09-15	STX	Sale	3,451 @ $772.65	$2.7M	−6.0% of holding	54,175	Form 4
2026-09-15	STX	Sale	3,242 @ $776.20	$2.5M	−6.5% of holding	46,901	Form 4
2026-09-15	STX	Sale	2,480 @ $800.47	$2.0M	−29.9% of holding	5,810	Form 4
2026-09-15	STX	Sale	2,453 @ $780.29	$1.9M	−8.5% of holding	26,520	Form 4
2026-09-15	STX	Sale	2,315 @ $775.01	$1.8M	−4.4% of holding	50,143	Form 4
2026-09-15	STX	Sale	2,166 @ $795.95	$1.7M	−16.7% of holding	10,807	Form 4
2026-09-15	STX	Sale	1,760 @ $789.84	$1.4M	−10.6% of holding	14,813	Form 4
2026-09-15	STX	Sale	1,760 @ $783.28	$1.4M	−8.5% of holding	19,013	Form 4
2026-09-15	STX	Sale	1,717 @ $774.01	$1.3M	−3.2% of holding	52,458	Form 4
2026-09-15	STX	Sale	1,587 @ $796.90	$1.3M	−14.7% of holding	9,220	Form 4
2026-09-15	STX	Sale	1,600 @ $781.35	$1.3M	−6.0% of holding	24,920	Form 4
2026-09-15	STX	Sale	1,280 @ $794.72	$1.0M	−9.0% of holding	12,973	Form 4
2026-09-15	STX	Sale	1,040 @ $786.14	$818K	−5.8% of holding	16,973	Form 4
2026-09-15	STX	Sale	1,000 @ $784.45	$784K	−5.3% of holding	18,013	Form 4
2026-09-15	STX	Sale	914 @ $771.38	$705K	−1.6% of holding	57,626	Form 4
2026-09-15	STX	Sale	560 @ $791.36	$443K	−3.8% of holding	14,253	Form 4
2026-09-15	STX	Sale	530 @ $797.97	$423K	−5.7% of holding	8,690	Form 4
2026-09-15	STX	Sale	400 @ $799.03	$320K	−4.6% of holding	8,290	Form 4
2026-09-15	STX	Sale	280 @ $788.43	$221K	−1.7% of holding	16,573	Form 4
2026-09-15	STX	Sale	120 @ $787.26	$94K	−0.7% of holding	16,853	Form 4
2026-09-14	STX	Sale	989 @ $779.00	$770K	−14.5% of holding	5,810	Form 4
2026-09-10	STX	Sale	663 @ $860.09	$570K	−10.2% of holding	5,810	Form 4
2026-08-21	STX	Sale	1,759 @ $861.81	$1.5M	−23.4% of holding	5,770	Form 4
2026-08-21	STX	Sale	920 @ $847.36	$780K	−7.1% of holding	12,027	Form 4
2026-08-21	STX	Sale	720 @ $857.16	$617K	−7.7% of holding	8,610	Form 4
2026-08-21	STX	Sale	560 @ $851.71	$477K	−5.2% of holding	10,240	Form 4
2026-08-21	STX	Sale	520 @ $848.47	$441K	−4.3% of holding	11,507	Form 4
2026-08-21	STX	Sale	510 @ $852.90	$435K	−5.0% of holding	9,730	Form 4
2026-08-21	STX	Sale	500 @ $860.50	$430K	−6.1% of holding	7,750	Form 4
2026-08-21	STX	Sale	440 @ $850.63	$374K	−3.9% of holding	10,800	Form 4
2026-08-21	STX	Sale	440 @ $841.60	$370K	−3.1% of holding	13,895	Form 4
2026-08-21	STX	Sale	360 @ $863.21	$311K	−6.2% of holding	5,410	Form 4
2026-08-21	STX	Sale	360 @ $846.39	$305K	−2.7% of holding	12,947	Form 4
2026-08-21	STX	Sale	280 @ $858.23	$240K	−3.3% of holding	8,330	Form 4
2026-08-21	STX	Sale	280 @ $839.60	$235K	−1.9% of holding	14,535	Form 4
2026-08-21	STX	Sale	267 @ $849.27	$227K	−2.3% of holding	11,240	Form 4
2026-08-21	STX	Sale	240 @ $855.18	$205K	−2.5% of holding	9,330	Form 4
2026-08-21	STX	Sale	240 @ $842.69	$202K	−1.7% of holding	13,655	Form 4
2026-08-21	STX	Sale	228 @ $845.15	$193K	−1.7% of holding	13,307	Form 4
2026-08-21	STX	Sale	221 @ $861.26	$190K	−2.9% of holding	7,529	Form 4
2026-08-21	STX	Sale	200 @ $840.53	$168K	−1.4% of holding	14,335	Form 4
2026-08-21	STX	Sale	160 @ $854.21	$137K	−1.6% of holding	9,570	Form 4
2026-08-21	STX	Sale	120 @ $865.77	$104K	−2.2% of holding	5,290	Form 4
2026-08-21	STX	Sale	120 @ $843.64	$101K	−0.9% of holding	13,535	Form 4
2026-08-21	STX	Sale	89 @ $837.27	$75K	−0.6% of holding	14,903	Form 4
2026-08-21	STX	Sale	88 @ $838.35	$74K	−0.6% of holding	14,815	Form 4
2026-08-21	STX	Sale	80 @ $868.00	$69K	−1.5% of holding	5,210	Form 4
2026-08-21	STX	Sale	80 @ $859.29	$69K	−1.0% of holding	8,250	Form 4
2026-08-21	STX	Sale	80 @ $835.54	$67K	−0.5% of holding	14,992	Form 4
2026-08-20	STX	Sale	926 @ $845.03	$782K	−5.0% of holding	17,472	Form 4
2026-08-20	STX	Sale	682 @ $835.64	$570K	−3.4% of holding	19,358	Form 4
2026-08-20	STX	Sale	630 @ $852.05	$537K	−3.9% of holding	15,682	Form 4
2026-08-20	STX	Sale	610 @ $852.66	$520K	−3.9% of holding	15,072	Form 4
2026-08-20	STX	Sale	440 @ $837.22	$368K	−2.3% of holding	18,918	Form 4
2026-08-20	STX	Sale	400 @ $849.27	$340K	−2.4% of holding	16,592	Form 4
2026-08-20	STX	Sale	320 @ $846.31	$271K	−1.8% of holding	17,152	Form 4
2026-08-20	STX	Sale	280 @ $850.41	$238K	−1.7% of holding	16,312	Form 4
2026-08-20	STX	Sale	280 @ $833.71	$233K	−1.4% of holding	20,280	Form 4
2026-08-20	STX	Sale	240 @ $834.59	$200K	−1.2% of holding	20,040	Form 4
2026-08-20	STX	Sale	240 @ $831.85	$200K	−1.2% of holding	20,560	Form 4
2026-08-20	STX	Sale	240 @ $829.77	$199K	−1.1% of holding	20,880	Form 4
2026-08-20	STX	Sale	160 @ $847.41	$136K	−0.9% of holding	16,992	Form 4
2026-08-20	STX	Sale	160 @ $841.51	$135K	−0.9% of holding	18,558	Form 4
2026-08-20	STX	Sale	120 @ $843.24	$101K	−0.6% of holding	18,438	Form 4
2026-08-20	STX	Sale	120 @ $838.41	$101K	−0.6% of holding	18,798	Form 4
2026-08-20	STX	Sale	80 @ $839.94	$67K	−0.4% of holding	18,718	Form 4
2026-08-20	STX	Sale	80 @ $830.18	$66K	−0.4% of holding	20,800	Form 4
2026-08-20	STX	Sale	40 @ $843.86	$34K	−0.2% of holding	18,398	Form 4
2026-08-13	STX	Sale	6,002 @ $920.14	$5.5M	−58.3% of holding	4,290	Form 4
2026-08-13	STX	Sale	1,359 @ $923.73	$1.3M	−31.7% of holding	2,931	Form 4
2026-06-12	STX	Sale	989 @ $880.19	$871K	−18.7% of holding	4,290	Form 4
2026-06-10	STX	Sale	663 @ $821.86	$545K	−13.4% of holding	4,290	Form 4
2026-05-14	STX	Sale	8,003 @ $817.28	$6.5M	−68.4% of holding	3,691	Form 4
2026-05-13	STX	Sale	1,569 @ $830.75	$1.3M	−29.8% of holding	3,691	Form 4
2026-05-13	STX	Sale	676 @ $803.76	$543K	−6.7% of holding	9,433	Form 4
2026-05-13	STX	Sale	607 @ $809.63	$491K	−7.6% of holding	7,368	Form 4

151 award / exercise / gift records — not counted as purchases

Date	Company	Action	Shares	Owned after	Filing
2026-09-14	STX	Option exercise	52,730	0	Form 4
2026-09-14	STX	Option exercise	52,730	58,540	Form 4
2026-09-11	STX	Option exercise	989	3,956	Form 4
2026-09-11	STX	Option exercise	989	6,799	Form 4
2026-09-09	STX	Option exercise	600	5,810	Form 4
2026-09-09	STX	Option exercise	663	5,306	Form 4
2026-09-09	STX	Option exercise	600	0	Form 4
2026-09-09	STX	Option exercise	663	6,473	Form 4
2026-08-20	STX	Option exercise	6,048	21,120	Form 4
2026-08-20	STX	Award / grant	4,736	4,736	Form 4
2026-08-20	STX	Option exercise	7,595	0	Form 4
2026-08-20	STX	Option exercise	2,279	15,072	Form 4
2026-08-20	STX	Option exercise	7,595	12,793	Form 4
2026-08-20	STX	Option exercise	2,267	5,198	Form 4
2026-08-20	STX	Award / grant	1,389	1,389	Form 4
2026-08-20	STX	Award / grant	417	417	Form 4
2026-08-20	STX	Award / grant	1,775	1,775	Form 4
2026-08-20	STX	Option exercise	6,048	18,144	Form 4
2026-08-20	STX	Option exercise	2,279	0	Form 4
2026-08-20	STX	Option exercise	2,267	6,804	Form 4
2026-08-13	STX	Option exercise	1,769	10,292	Form 4
2026-08-13	STX	Option exercise	2,636	8,523	Form 4
2026-08-13	STX	Option exercise	1,597	5,887	Form 4
2026-08-13	STX	Option exercise	1,597	533	Form 4
2026-08-13	STX	Option exercise	2,636	11,424	Form 4
2026-08-13	STX	Option exercise	1,769	14,740	Form 4
2026-06-11	STX	Option exercise	989	5,279	Form 4
2026-06-11	STX	Option exercise	989	4,945	Form 4
2026-06-09	STX	Option exercise	663	4,953	Form 4
2026-06-09	STX	Option exercise	663	5,969	Form 4
2026-06-09	STX	Option exercise	599	600	Form 4
2026-06-09	STX	Option exercise	599	4,290	Form 4
2026-05-14	STX	Option exercise	2,358	9,564	Form 4
2026-05-14	STX	Option exercise	3,515	7,206	Form 4
2026-05-14	STX	Option exercise	2,130	11,694	Form 4
2026-05-14	STX	Option exercise	3,515	14,060	Form 4
2026-05-14	STX	Option exercise	2,358	16,509	Form 4
2026-05-14	STX	Option exercise	2,130	2,130	Form 4
2026-03-11	STX	Option exercise	989	11,248	Form 4
2026-03-11	STX	Option exercise	989	5,934	Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.