Ronald Bisio

Insider

First SEC filing: Feb. 25, 2019 · Latest: April 17, 2026

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Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Initial holdings The stakes this person held when they first started reporting.

Insider at

TRMB selling Nov. 26, 2025

Insider transactions

0 buys (P) 2 sells (S) Net: $-406,050 + 92 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

92 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
April 15, 2026	TRMB	M	5,078	—	—	10,794 Direct	-31.99%	Disposed	(price as of 2026-08-19)
April 15, 2026	TRMB	M	5,790	—	—	5,790 Direct	-50.00%	Disposed	(price as of 2026-08-19)
April 15, 2026	TRMB	M	3,436	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
April 15, 2026	TRMB	F	2,103	$66.51	$139,871	105,317 Direct	-1.96%	Disposed	-10.7% (price as of 2026-08-19)
April 15, 2026	TRMB	M	5,078	$66.51	$337,738	107,420 Direct	+4.96%	Acquired	-10.7% (price as of 2026-08-19)
April 15, 2026	TRMB	F	2,398	$66.51	$159,491	102,342 Direct	-2.29%	Disposed	-10.7% (price as of 2026-08-19)
April 15, 2026	TRMB	M	5,790	$66.51	$385,093	104,740 Direct	+5.85%	Acquired	-10.7% (price as of 2026-08-19)
April 15, 2026	TRMB	F	1,423	$66.51	$94,644	98,950 Direct	-1.42%	Disposed	-10.7% (price as of 2026-08-19)
April 15, 2026	TRMB	M	3,436	$66.51	$228,528	100,373 Direct	+3.54%	Acquired	-10.7% (price as of 2026-08-19)
April 15, 2026	TRMB	F	1,729	$66.51	$114,996	96,937 Direct	-1.75%	Disposed	-10.7% (price as of 2026-08-19)
April 15, 2026	TRMB	A	4,563	$66.51	$303,485	98,666 Direct	+4.85%	Acquired	-10.7% (price as of 2026-08-19)
April 15, 2026	TRMB	F	5,989	$66.51	$398,328	94,103 Direct	-5.98%	Disposed	-10.7% (price as of 2026-08-19)
April 15, 2026	TRMB	A	13,689	$66.51	$910,455	100,092 Direct	+15.84%	Acquired	-10.7% (price as of 2026-08-19)
Nov. 26, 2025	TRMB	S 10b5-1	2,500	$80.87	$202,175	86,403 Direct	-2.81%	Disposed	-26.5% (price as of 2026-08-19)
Nov. 4, 2025	TRMB	M	636	—	—	15,236 Direct	-4.01%	Disposed	(price as of 2026-08-19)
Nov. 4, 2025	TRMB	M	484	—	—	11,580 Direct	-4.01%	Disposed	(price as of 2026-08-19)
Nov. 4, 2025	TRMB	F	636	$79.75	$50,721	88,903 Direct	-0.71%	Disposed	-25.5% (price as of 2026-08-19)
Nov. 4, 2025	TRMB	M	636	—	—	89,539 Direct	+0.72%	Acquired	(price as of 2026-08-19)
Nov. 4, 2025	TRMB	F	484	$79.75	$38,599	88,903 Direct	-0.54%	Disposed	-25.5% (price as of 2026-08-19)
Nov. 4, 2025	TRMB	M	484	—	—	89,387 Direct	+0.54%	Acquired	(price as of 2026-08-19)
Aug. 27, 2025	TRMB	S 10b5-1	2,500	$81.55	$203,875	88,903 Direct	-2.74%	Disposed	-27.1% (price as of 2026-08-19)
Aug. 26, 2025	TRMB	G	325	—	—	91,403 Direct	-0.35%	Disposed	(price as of 2026-08-19)
June 26, 2025	TRMB	S 10b5-1	2,500	$75.00	$187,500	91,728 Direct	-2.65%	Disposed	-20.8% (price as of 2026-08-19)
June 16, 2025	TRMB	S	1,500	$72.75	$109,125	94,228 Direct	-1.57%	Disposed	-18.3% (price as of 2026-08-19)
May 22, 2025	TRMB	F	81	$70.76	$5,732	95,728 Direct	-0.08%	Disposed	-16.0% (price as of 2026-08-19)
May 22, 2025	TRMB	M	184	—	—	95,809 Direct	+0.19%	Acquired	(price as of 2026-08-19)
May 22, 2025	TRMB	F	244	$70.76	$17,265	95,625 Direct	-0.25%	Disposed	-16.0% (price as of 2026-08-19)
May 22, 2025	TRMB	M	556	—	—	95,869 Direct	+0.58%	Acquired	(price as of 2026-08-19)
April 15, 2025	TRMB	M	6,032	—	—	12,064 Direct	-33.33%	Disposed	(price as of 2026-08-19)
April 15, 2025	TRMB	M	3,435	—	—	6,871 Direct	-33.33%	Disposed	(price as of 2026-08-19)
April 15, 2025	TRMB	M	3,414	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
April 15, 2025	TRMB	F	2,639	$59.49	$156,994	95,313 Direct	-2.69%	Disposed	-0.1% (price as of 2026-08-19)
April 15, 2025	TRMB	M	6,032	$59.49	$358,844	97,952 Direct	+6.56%	Acquired	-0.1% (price as of 2026-08-19)
April 15, 2025	TRMB	F	1,423	$59.49	$84,654	91,920 Direct	-1.52%	Disposed	-0.1% (price as of 2026-08-19)
April 15, 2025	TRMB	M	3,435	$59.49	$204,348	93,343 Direct	+3.82%	Acquired	-0.1% (price as of 2026-08-19)
April 15, 2025	TRMB	F	1,414	$59.49	$84,119	89,908 Direct	-1.55%	Disposed	-0.1% (price as of 2026-08-19)
April 15, 2025	TRMB	M	3,414	$59.49	$203,099	91,322 Direct	+3.88%	Acquired	-0.1% (price as of 2026-08-19)
April 10, 2025	TRMB	F	1,044	$61.49	$64,196	87,908 Direct	-1.17%	Disposed	-3.4% (price as of 2026-08-19)
April 10, 2025	TRMB	A	2,385	—	—	88,952 Direct	+2.76%	Acquired	(price as of 2026-08-19)
April 10, 2025	TRMB	F	2,745	$61.49	$168,790	86,567 Direct	-3.07%	Disposed	-3.4% (price as of 2026-08-19)
April 10, 2025	TRMB	A	7,210	—	—	89,312 Direct	+8.78%	Acquired	(price as of 2026-08-19)
March 12, 2025	TRMB	A	15,872	—	—	15,872 Direct	—	Acquired	(price as of 2026-08-19)
March 12, 2025	TRMB	A	15,870	—	—	15,870 Direct	—	Acquired	(price as of 2026-08-19)
May 15, 2024	TRMB	M	2,512	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
May 15, 2024	TRMB	F	1,040	$57.09	$59,374	82,102 Direct	-1.25%	Disposed	4.1% (price as of 2026-08-19)
May 15, 2024	TRMB	M	2,512	$57.09	$143,410	83,142 Direct	+3.12%	Acquired	4.1% (price as of 2026-08-19)
April 15, 2024	TRMB	M	3,414	—	—	3,414 Direct	-50.00%	Disposed	(price as of 2026-08-19)
April 15, 2024	TRMB	M	3,435	—	—	6,871 Direct	-33.33%	Disposed	(price as of 2026-08-19)
April 15, 2024	TRMB	F	1,414	$60.54	$85,604	80,630 Direct	-1.72%	Disposed	-1.8% (price as of 2026-08-19)
April 15, 2024	TRMB	M	3,414	$60.54	$206,684	82,044 Direct	+4.34%	Acquired	-1.8% (price as of 2026-08-19)
April 15, 2024	TRMB	F	1,423	$60.54	$86,148	78,630 Direct	-1.78%	Disposed	-1.8% (price as of 2026-08-19)
April 15, 2024	TRMB	M	3,435	$60.54	$207,955	80,053 Direct	+4.48%	Acquired	-1.8% (price as of 2026-08-19)
March 19, 2024	TRMB	A	18,096	—	—	18,096 Direct	—	Acquired	(price as of 2026-08-19)
March 19, 2024	TRMB	A	18,096	—	—	18,096 Direct	—	Acquired	(price as of 2026-08-19)
Feb. 5, 2024	TRMB	F	2,511	$52.59	$132,053	76,618 Direct	-3.17%	Disposed	13.0% (price as of 2026-08-19)
Feb. 5, 2024	TRMB	A	6,801	—	—	79,129 Direct	+9.40%	Acquired	(price as of 2026-08-19)
Nov. 3, 2023	TRMB	S	3,800	$43.24	$164,312	72,328 Direct	-4.99%	Disposed	37.4% (price as of 2026-08-19)
May 31, 2023	TRMB	F	5,154	$46.67	$240,537	76,128 Direct	-6.34%	Disposed	27.3% (price as of 2026-08-19)
May 31, 2023	TRMB	A	13,339	—	—	81,282 Direct	+19.63%	Acquired	(price as of 2026-08-19)
May 15, 2023	TRMB	M	2,437	—	—	2,512 Direct	-49.24%	Disposed	(price as of 2026-08-19)
May 15, 2023	TRMB	M	5,585	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
May 15, 2023	TRMB	F	896	$46.74	$41,879	67,943 Direct	-1.30%	Disposed	27.1% (price as of 2026-08-19)
May 15, 2023	TRMB	M	2,437	$46.74	$113,905	68,839 Direct	+3.67%	Acquired	27.1% (price as of 2026-08-19)
May 15, 2023	TRMB	F	2,053	$46.74	$95,957	66,402 Direct	-3.00%	Disposed	27.1% (price as of 2026-08-19)
May 15, 2023	TRMB	M	5,585	$46.74	$261,043	68,455 Direct	+8.88%	Acquired	27.1% (price as of 2026-08-19)
April 17, 2023	TRMB	M	3,413	—	—	6,828 Direct	-33.33%	Disposed	(price as of 2026-08-19)
April 17, 2023	TRMB	F	1,255	$49.78	$62,474	62,870 Direct	-1.96%	Disposed	19.4% (price as of 2026-08-19)
April 17, 2023	TRMB	M	3,413	$49.78	$169,899	64,125 Direct	+5.62%	Acquired	19.4% (price as of 2026-08-19)
March 21, 2023	TRMB	A	10,306	—	—	10,306 Direct	—	Acquired	(price as of 2026-08-19)
March 21, 2023	TRMB	A	10,306	—	—	10,306 Direct	—	Acquired	(price as of 2026-08-19)
Nov. 15, 2022	TRMB	M	3,842	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Nov. 15, 2022	TRMB	F	1,687	$59.30	$100,039	60,712 Direct	-2.70%	Disposed	0.2% (price as of 2026-08-19)
Nov. 15, 2022	TRMB	M	3,842	$59.30	$227,831	62,399 Direct	+6.56%	Acquired	0.2% (price as of 2026-08-19)
May 16, 2022	TRMB	M	5,420	—	—	5,585 Direct	-49.25%	Disposed	(price as of 2026-08-19)
May 16, 2022	TRMB	M	2,437	—	—	4,949 Direct	-32.99%	Disposed	(price as of 2026-08-19)
May 16, 2022	TRMB	F	2,380	—	—	58,557 Direct	-3.91%	Disposed	(price as of 2026-08-19)
May 16, 2022	TRMB	M	5,420	—	—	60,937 Direct	+9.76%	Acquired	(price as of 2026-08-19)
May 16, 2022	TRMB	F	1,070	—	—	55,517 Direct	-1.89%	Disposed	(price as of 2026-08-19)
May 16, 2022	TRMB	M	2,437	—	—	56,587 Direct	+4.50%	Acquired	(price as of 2026-08-19)
March 29, 2022	TRMB	A	10,241	—	—	10,241 Direct	—	Acquired	(price as of 2026-08-19)
March 15, 2022	TRMB	M	2,900	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
March 15, 2022	TRMB	F	1,274	$66.22	$84,364	54,150 Direct	-2.30%	Disposed	-10.3% (price as of 2026-08-19)
March 15, 2022	TRMB	M	2,900	$66.22	$192,038	55,424 Direct	+5.52%	Acquired	-10.3% (price as of 2026-08-19)
March 11, 2022	TRMB	M	2,660	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
March 11, 2022	TRMB	S	2,660	$65.98	$175,507	52,524 Direct	-4.82%	Disposed	-9.9% (price as of 2026-08-19)
March 11, 2022	TRMB	M	2,660	$25.29	$67,271	55,184 Direct	+5.06%	Acquired	135.0% (price as of 2026-08-19)
Feb. 14, 2022	TRMB	F	5,040	$65.85	$331,884	52,524 Direct	-8.76%	Disposed	-9.8% (price as of 2026-08-19)
Feb. 14, 2022	TRMB	A	16,494	—	—	57,564 Direct	+40.16%	Acquired	(price as of 2026-08-19)
Nov. 15, 2021	TRMB	M	4,786	$87.31	$417,866	41,081 Direct	+13.19%	Acquired	-31.9% (price as of 2026-08-19)
Nov. 15, 2021	TRMB	M	3,729	—	—	3,842 Direct	-49.25%	Disposed	(price as of 2026-08-19)
Nov. 15, 2021	TRMB	M	4,786	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Nov. 15, 2021	TRMB	F	1,638	$87.31	$143,014	41,070 Direct	-3.84%	Disposed	-31.9% (price as of 2026-08-19)
Nov. 15, 2021	TRMB	M	3,729	$87.31	$325,579	42,708 Direct	+9.57%	Acquired	-31.9% (price as of 2026-08-19)
Nov. 15, 2021	TRMB	F	2,102	$87.31	$183,526	38,979 Direct	-5.12%	Disposed	-31.9% (price as of 2026-08-19)
Aug. 23, 2021	TRMB	S	3,500	$92.28	$322,980	36,295 Direct	-8.80%	Disposed	-35.6% (price as of 2026-08-19)
June 1, 2021	TRMB	M	5,500	$27.48	$151,140	43,268 Direct	+14.56%	Acquired	116.2% (price as of 2026-08-19)
June 1, 2021	TRMB	S	3,473	$80.40	$279,229	39,795 Direct	-8.03%	Disposed	-26.1% (price as of 2026-08-19)
June 1, 2021	TRMB	M	5,500	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
May 15, 2021	TRMB	M	5,419	—	—	11,005 Direct	-32.99%	Disposed	(price as of 2026-08-19)
May 15, 2021	TRMB	F	2,379	$76.31	$181,541	37,768 Direct	-5.93%	Disposed	-22.1% (price as of 2026-08-19)

Showing latest 100 of 144 transactions

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
April 15, 2026	TRMB	Restricted Stock Unit	Common Stock (5,078)	$0.00	April 15, 2028	5,078	Disposed
April 15, 2026	TRMB	Restricted Stock Unit	Common Stock (5,790)	$0.00	April 15, 2027	5,790	Disposed
April 15, 2026	TRMB	Restricted Stock Unit	Common Stock (3,436)	$0.00	April 15, 2026	3,436	Disposed
Nov. 4, 2025	TRMB	Restricted Stock Unit	Common Stock (636)	$0.00	April 15, 2028	636	Disposed
Nov. 4, 2025	TRMB	Restricted Stock Unit	Common Stock (484)	$0.00	April 15, 2027	484	Disposed
April 15, 2025	TRMB	Restricted Stock Unit	Common Stock (6,032)	$0.00	April 15, 2027	6,032	Disposed
April 15, 2025	TRMB	Restricted Stock Unit	Common Stock (3,435)	$0.00	April 15, 2026	3,435	Disposed
April 15, 2025	TRMB	Restricted Stock Unit	Common Stock (3,414)	$0.00	April 15, 2025	3,414	Disposed
March 12, 2025	TRMB	Restricted Stock Unit	Common Stock (15,872)	$0.00	April 15, 2028	15,872	Acquired
March 12, 2025	TRMB	Employee Stock Option	Common Stock (15,870)	$67.36	April 15, 2035	15,870	Acquired
May 15, 2024	TRMB	Restricted Stock Units	Common Stock (2,512)	$0.00	May 15, 2024	2,512	Disposed
April 15, 2024	TRMB	Restricted Stock Unit	Common Stock (3,414)	$0.00	April 15, 2025	3,414	Disposed
April 15, 2024	TRMB	Restricted Stock Unit	Common Stock (3,435)	$0.00	April 15, 2026	3,435	Disposed
March 19, 2024	TRMB	Restricted Stock Unit	Common Stock (18,096)	$0.00	April 15, 2027	18,096	Acquired
March 19, 2024	TRMB	Employee Stock Option	Common Stock (18,096)	$63.47	April 15, 2034	18,096	Acquired
May 15, 2023	TRMB	Restricted Stock Units	Common Stock (2,437)	$0.00	May 15, 2024	2,437	Disposed
May 15, 2023	TRMB	Restricted Stock Units	Common Stock (5,585)	$0.00	May 15, 2023	5,585	Disposed
April 17, 2023	TRMB	Restricted Stock Unit	Common Stock (3,413)	$0.00	April 15, 2025	3,413	Disposed
March 21, 2023	TRMB	Employee Stock Option	Common Stock (10,306)	$49.90	April 15, 2033	10,306	Acquired
March 21, 2023	TRMB	Restricted Stock Unit	Common Stock (10,306)	—	April 15, 2026	10,306	Acquired
Nov. 15, 2022	TRMB	Restricted Stock Units	Common Stock (3,842)	$0.00	Nov. 15, 2022	3,842	Disposed
May 16, 2022	TRMB	Restricted Stock Units [F1]	Common Stock (5,420)	$0.00	May 15, 2023	5,420	Disposed
May 16, 2022	TRMB	Restricted Stock Units [F1]	Common Stock (2,437)	$0.00	May 15, 2024	2,437	Disposed
March 29, 2022	TRMB	Restricted Stock Unit	Common Stock (10,241)	—	April 15, 2025	10,241	Acquired
March 15, 2022	TRMB	Restricted Stock Units [F1]	Common Stock (2,900)	$0.00	March 16, 2022	2,900	Disposed
March 11, 2022	TRMB	Employee Stock Option	Common Stock (2,660)	$25.29	May 7, 2022	2,660	Disposed
Nov. 15, 2021	TRMB	Restricted Stock Units	Common Stock (3,729)	$0.00	Nov. 15, 2022	3,729	Disposed
Nov. 15, 2021	TRMB	Restricted Stock Units	Common Stock (4,786)	$0.00	Nov. 15, 2021	4,786	Disposed
June 1, 2021	TRMB	Employee Stock Option	Common Stock (5,500)	$27.48	Nov. 6, 2021	5,500	Disposed
May 15, 2021	TRMB	Restricted Stock Units [F3]	Common Stock (5,419)	$0.00	May 15, 2023	5,419	Disposed
May 10, 2021	TRMB	Restricted Stock Units	Common Stock (7,386)	—	May 15, 2024	7,386	Acquired
March 1, 2021	TRMB	Employee Stock Option	Common Stock (3,550)	$35.02	May 9, 2021	3,550	Disposed
Feb. 19, 2021	TRMB	Restricted Stock Units	Common Stock (2,900)	—	March 16, 2022	2,900	Acquired
Nov. 15, 2020	TRMB	Restricted Stock Units	Common Stock (3,729)	$0.00	Nov. 15, 2022	3,729	Disposed
Nov. 15, 2020	TRMB	Restricted Stock Units	Common Stock (4,644)	$0.00	Nov. 15, 2021	4,644	Disposed
Nov. 15, 2020	TRMB	Restricted Stock Units	Common Stock (3,330)	$0.00	Nov. 15, 2020	3,330	Disposed
Aug. 13, 2020	TRMB	Employee Stock Option	Common Stock (6,000)	$28.20	Oct. 29, 2020	6,000	Disposed
May 27, 2020	TRMB	Restricted Stock Units	Common Stock (16,424)	—	May 15, 2023	16,424	Acquired
Feb. 14, 2020	TRMB	Employee Stock Option	Common Stock (4,400)	$28.08	May 7, 2020	4,400	Disposed
Nov. 15, 2019	TRMB	Restricted Stock Units	Common Stock (4,644)	$0.00	Nov. 15, 2021	4,644	Disposed
Nov. 15, 2019	TRMB	Restricted Stock Units	Common Stock (3,231)	$0.00	Nov. 15, 2020	3,231	Disposed
Nov. 12, 2019	TRMB	Restricted Stock Units	Common Stock (11,300)	$0.00	Nov. 15, 2022	11,300	Acquired
Nov. 10, 2019	TRMB	Restricted Stock Units	Common Stock (1,836)	$0.00	Nov. 10, 2019	1,836	Disposed
Sept. 6, 2019	TRMB	Employee Stock Option	Common Stock (3,280)	$23.53	Oct. 29, 2019	3,280	Acquired
Sept. 6, 2019	TRMB	Employee Stock Option	Common Stock (2,720)	$23.53	Oct. 29, 2019	2,720	Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 10 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
Feb. 25, 2019	TRMB	Common Stock	25,472	Direct
Feb. 25, 2019	TRMB	Restricted Stock Units→ Common Stock (1,836)	1,836	Direct
Feb. 25, 2019	TRMB	Restricted Stock Units→ Common Stock (6,561)	6,561	Direct
Feb. 25, 2019	TRMB	Restricted Stock Units→ Common Stock (14,074)	14,074	Direct
Feb. 25, 2019	TRMB	Employee Stock Option→ Common Stock (6,000)	6,000	Direct
Feb. 25, 2019	TRMB	Employee Stock Option→ Common Stock (4,400)	4,400	Direct
Feb. 25, 2019	TRMB	Employee Stock Option→ Common Stock (6,000)	6,000	Direct
Feb. 25, 2019	TRMB	Employee Stock Option→ Common Stock (3,550)	3,550	Direct
Feb. 25, 2019	TRMB	Employee Stock Option→ Common Stock (5,500)	5,500	Direct
Feb. 25, 2019	TRMB	Employee Stock Option→ Common Stock (2,660)	2,660	Direct