Vanguard Group Inc ownership in 0ACF / Teledyne Technologies Incorporated

Teledyne Technologies Incorporated

GB ˙ LSE ˙ US8793601050

Security	GB:0ACF / Teledyne Technologies Incorporated
Institution	Vanguard Group Inc
Latest Disclosed Ownership	0 shares
Ownership	0.00%

2026-03-27 - Vanguard Group Inc has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 0 shares of Teledyne Technologies Incorporated (GB:0ACF). This represents 0.0 percent ownership of the company. In their previous filing dated 2026-01-30 , Vanguard Group Inc had reported owning 5,977,777 shares, indicating a decrease of -100.00 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File Date	Effective Date	Form	Prev Shares	Latest Shares	ΔShares (Percent)	Ownership (Percent)	ΔOwnership (Percent)
2026-03-27	2026-03-27	13G/A	5,977,777	0	-100.00	0.00	-100.00
2026-01-30	2026-01-30	13G/A	5,516,154	5,977,777	8.37	12.73	8.90
2024-02-13	2024-02-13	13G/A	5,301,284	5,516,154	4.05	11.69	3.36
2023-02-09	2023-02-09	13G/A	5,034,477	5,301,284	5.30	11.31	4.82
2022-02-10	2022-02-10	13G/A	3,856,191	5,034,477	30.56	10.79	3.15
2021-02-10	2021-02-10	13G/A	3,951,752	3,856,191	-2.42	10.46	-2.97
2020-07-10	2020-07-10	13G/A	3,341,461	3,951,752	18.26	10.78	17.69
2020-02-12	2020-02-12	13G/A	3,145,416	3,341,461	6.23	9.16	5.17
2019-02-13	2019-02-13	13G/A	2,677,661	3,145,416	17.47	8.71	15.36
2018-02-12	2018-02-12	13G/A	2,520,128	2,677,661	6.25	7.55	4.72
2017-02-10	2017-02-10	13G/A	2,238,584	2,520,128	12.58	7.21	14.26
2016-02-10	2016-02-10	13G/A		2,238,584		6.31
2015-02-10	2015-02-10	13G/A		2,304,277		6.30
2014-02-12	2014-02-12	13G/A		2,176,983		5.80
2013-02-11	2013-02-11	13G/A		2,119,137		5.74
2012-02-09	2012-02-09	13G		1,875,833		5.07

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)

File Date	Effective Date	Form	Security	Class	ID	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-01-29	2025-12-31	13F	TELEDYNE TECHNOLOGIES	COM	879360105	5,977,792	66,984	1.13	3,053,038	-11.86	0.0443
2025-11-07	2025-09-30	13F	TELEDYNE TECHNOLOGIES	COM	879360105	5,910,808	69,284	1.19	3,463,970	15.75	0.0519
2025-08-11	2025-06-30	13F	TELEDYNE TECHNOLOGIES	COM	879360105	5,841,524	123,229	2.15	2,992,671	5.15	0.0484
2025-05-09	2025-03-31	13F	TELEDYNE TECHNOLOGIES	COM	879360105	5,718,295	105,811	1.89	2,846,053	9.26	0.0515
2025-02-11	2024-12-31	13F	TELEDYNE TECHNOLOGIES	COM	879360105	5,612,484	46,479	0.84	2,604,922	6.93	0.0454
2024-11-13	2024-09-30	13F	TELEDYNE TECHNOLOGIES	COM	879360105	5,566,005	5,049	0.09	2,436,018	12.91	0.0436
2024-08-13	2024-06-30	13F	TELEDYNE TECHNOLOGIES	COM	879360105	5,560,956	26,845	0.49	2,157,540	-9.19	0.0414
2024-05-10	2024-03-31	13F	TELEDYNE TECHNOLOGIES	COM	879360105	5,534,111	16,189	0.29	2,375,905	-3.52	0.0471
2024-03-11	2023-12-31	13F/A-1	TELEDYNE TECHNOLOGIES	COM	879360105	5,517,922	77,890	1.43	2,462,593	10.79	0.0538
2024-02-14	2023-12-31	13F	TELEDYNE TECHNOLOGIES	COM	879360105	5,517,922	77,890		2,462,593		0.0467
2023-12-18	2023-09-30	13F/A-1	TELEDYNE TECHNOLOGIES	COM	879360105	5,440,032	13,645	0.25	2,222,688	-0.37	0.0546
2023-11-14	2023-09-30	13F	TELEDYNE TECHNOLOGIES	COM	879360105	5,440,032	13,645		2,222,688		0.0098
2023-08-14	2023-06-30	13F	TELEDYNE TECHNOLOGIES	COM	879360105	5,426,387	85,549	1.60	2,230,842	-6.63	0.0529
2023-07-14	2023-03-31	13F/A-1	TELEDYNE TECHNOLOGIES	COM	879360105	5,340,838	39,554	0.75	2,389,277	12.70	0.0608
2023-05-15	2023-03-31	13F	TELEDYNE TECHNOLOGIES	COM	879360105	5,340,828	39,544		2,389,273		0.0609
2023-02-10	2022-12-31	13F	TELEDYNE TECHNOLOGIES	COM	879360105	5,301,284	77,537	1.48	2,120,036	20.26	0.0577
2022-11-14	2022-09-30	13F	TELEDYNE TECHNOLOGIES	COM	879360105	5,223,747	47,594	0.92	1,762,859	-9.21	0.0518
2022-08-12	2022-06-30	13F	TELEDYNE TECHNOLOGIES	COM	879360105	5,176,153	77,414	1.52	1,941,626	-19.43	0.0546
2022-05-13	2022-03-31	13F	TELEDYNE TECHNOLOGIES	COM	879360105	5,098,739	64,262	1.28	2,409,817	9.56	0.0570
2022-02-14	2021-12-31	13F	TELEDYNE TECHNOLOGIES	COM	879360105	5,034,477	19,161	0.38	2,199,512	2.09	0.0499
2021-11-12	2021-09-30	13F	TELEDYNE TECHNOLOGIES	COM	879360105	5,015,316	188,266	3.90	2,154,480	6.57	0.0535
2021-08-13	2021-06-30	13F	TELEDYNE TECHNOLOGIES	COM	879360105	4,827,050	907,064	23.14	2,021,712	24.68	0.0503
2021-05-14	2021-03-31	13F	TELEDYNE TECHNOLOGIES	COM	879360105	3,919,986	63,795	1.65	1,621,503	7.27	0.0439
2021-02-12	2020-12-31	13F	TELEDYNE TECHNOLOGIES	COM	879360105	3,856,191	-672	-0.02	1,511,550	26.34	0.0438
2020-11-16	2020-09-30	13F	TELEDYNE TECHNOLOGIES	COM	879360105	3,856,863	-94,889	-2.40	1,196,438	-2.63	0.0396
2020-08-14	2020-06-30	13F	TELEDYNE TECHNOLOGIES	COM	879360105	3,951,752	535,431	15.67	1,228,797	21.00	0.0436
2020-05-15	2020-03-31	13F	TELEDYNE TECHNOLOGIES	COM	879360105	3,416,321	74,860	2.24	1,015,570	-12.30	0.0433
2020-02-14	2019-12-31	13F	TELEDYNE TECHNOLOGIES	COM	879360105	3,341,461	43,417	1.32	1,157,950	9.04	0.0395
2019-11-14	2019-09-30	13F	TELEDYNE TECHNOLOGIES	COM	879360105	3,298,044	59,145	1.83	1,061,938	19.72	0.0394
2019-08-14	2019-06-30	13F	TELEDYNE TECHNOLOGIES	COM	879360105	3,238,899	47,526	1.49	887,037	17.27	0.0334
2019-05-15	2019-03-31	13F	TELEDYNE TECHNOLOGIES	COM	879360105	3,191,373	45,957	1.46	756,388	16.13	0.0297
2019-02-14	2018-12-31	13F	TELEDYNE TECHNOLOGIES	COM	879360105	3,145,416	90,497	2.96	651,322	-13.57	0.0293
2018-12-13	2018-09-30	13F/A-2	TELEDYNE TECHNOLOGIES	COM	879360105	3,054,919	96,848	3.27	753,588	27.98	0.0294
2018-11-23	2018-09-30	13F/A-1	TELEDYNE TECHNOLOGIES	COM	879360105	3,054,919	0		753,588		0.0294
2018-11-14	2018-09-30	13F	TELEDYNE TECHNOLOGIES	COM	879360105	3,054,919	96,848		753,588
2018-08-14	2018-06-30	13F	TELEDYNE TECHNOLOGIES	COM	879360105	2,958,071	108,427	3.80	588,834	10.40	0.0246
2018-05-15	2018-03-31	13F	TELEDYNE TECHNOLOGIES	COM	879360105	2,849,644	171,983	6.42	533,367	9.96	0.0233
2018-02-14	2017-12-31	13F	TELEDYNE TECHNOLOGIES	COM	879360105	2,677,661	39,348	1.49	485,059	15.50	0.0212
2017-11-14	2017-09-30	13F	TELEDYNE TECHNOLOGIES	COM	879360105	2,638,313	18,919	0.72	419,966	25.60	0.0196
2017-08-24	2017-06-30	13F/A-1	TELEDYNE TECHNOLOGIES	COM	879360105	2,619,394	-51,935	-1.94	334,365	-1.02	0.0165
2017-08-11	2017-06-30	13F	TELEDYNE TECHNOLOGIES	COM	879360105	2,619,394	-51,935		334,365
2017-05-12	2017-03-31	13F	TELEDYNE TECHNOLOGIES	COM	879360105	2,671,329	151,201	6.00	337,816	8.98	0.0174
2017-02-14	2016-12-31	13F	TELEDYNE TECHNOLOGIES	COM	879360105	2,520,128	96,510	3.98	309,977	18.50	0.0173
2016-11-14	2016-09-30	13F	TELEDYNE TECHNOLOGIES	COM	879360105	2,423,618	64,207	2.72	261,582	11.93	0.0154
2016-08-10	2016-06-30	13F	TELEDYNE TECHNOLOGIES	COM	879360105	2,359,411	59,680	2.60	233,700	15.30	0.0145
2016-05-13	2016-03-31	13F	TELEDYNE TECHNOLOGIES	COM	879360105	2,299,731	61,147	2.73	202,697	2.08	0.0131
2016-02-08	2015-12-31	13F	TELEDYNE TECHNOLOGIES	COM	879360105	2,238,584	53,700	2.46	198,562	0.64	0.0134
2015-11-12	2015-09-30	13F/A-1	TELEDYNE TECHNOLOGIES	COM	879360105	2,184,884	-30,158	-1.36	197,295	-15.58	0.0084
2015-11-12	2015-09-30	13F/A-1	TELEDYNE TECHNOLOGIES	COM	879360105	2,184,884	-30,158		197,295		0.0084
2015-08-13	2015-06-30	13F	TELEDYNE TECHNOLOGIES	COM	879360105	2,215,042	78,632	3.68	233,709	2.50	0.0158
2015-05-15	2015-03-31	13F/A-1	TELEDYNE TECHNOLOGIES	COM	879360105	2,136,410	-167,867	-7.29	228,019	-3.68	0.0155
2015-05-14	2015-03-31	13F	TELEDYNE TECHNOLOGIES	COM	879360105	2,136,410			228,019
2015-02-12	2014-12-31	13F	TELEDYNE TECHNOLOGIES	COM	879360105	2,304,277	54,461	2.42	236,742	11.93	0.0171
2014-11-12	2014-09-30	13F	TELEDYNE TECHNOLOGIES	COM	879360105	2,249,816	20,527	0.92	211,505	-2.36	0.0165
2014-08-11	2014-06-30	13F	TELEDYNE TECHNOLOGIES	COM	879360105	2,229,289	16,394	0.74	216,620	0.58	0.0171
2014-05-13	2014-03-31	13F	TELEDYNE TECHNOLOGIES	COM	879360105	2,212,895	35,912	1.65	215,381	7.70	0.0181
2014-02-12	2013-12-31	13F	TELEDYNE TECHNOLOGIES	COM	879360105	2,176,983	85,695	4.10	199,978	12.59	0.0176
2013-11-07	2013-09-30	13F	TELEDYNE TECHNOLOGIES	COM	879360105	2,091,288	62,354	3.07	177,613	13.17	0.0173
2013-08-13	2013-06-30	13F	TELEDYNE TECHNOLOGIES	COM	879360105	2,028,934	2,028,934		156,938		0.0165

Legend

Shares: The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value: The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price: The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class: This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred

Allocation (%): The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation: The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%): The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis: The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss: This is the market value of the position as of the effective date minus the cost basis.