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Insider Trading Intelligence
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Mark Brosius

ISRG
SVP & CHIEF MFG AND SUPPLY CHA · INTUITIVE SURGICAL INC · CIK 0002010300
FILING MIX · LIFETIME21%/79%
BUYS
22
SELLS
85
TOTAL VALUE
$16.42M
COMPANIES
1
ACTIVE SINCE
Feb 2024
HOLDINGS NOW
1,406
AVG SELL PX
$511.78
TRADE KIND
SHOWING 107 / 107
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
45 backtested trades · 8 horizons · 42 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Mark Brosius, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d45+64.44%-1.87%-0.35%-1.51%-0.87%-2.62
14d45+55.56%-1.43%+0.28%-1.71%-0.74%-2.69
30d45+53.33%-1.33%+0.82%-2.15%-2.79%-2.69
60d45+64.44%-2.70%+3.47%-6.17%-3.11%-5.05
90d45+51.11%-0.67%+4.80%-3.98%-3.89%-1.70
180d45(5 pending)+35.00%+6.65%+8.70%-2.05%+1.84%-0.70
1y45(8 pending)+40.54%+12.60%+19.05%-3.11%-10.11%-0.56
2y45(29 pending)+0.00%+22.20%+39.11%-16.92%-11.07%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
ISRG · 1,406 shares · as of Jun 12, 2026
02,6805,3608,03910,71920252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 22 buys / 85 sellsCOVERAGE · 10 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
25$414.13$10.4K1,406Jun 12, 2026Jun 12, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
23$412.16$9.5K1,431Jun 11, 2026Jun 12, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
23$424.14$9.8K1,454Jun 10, 2026Jun 10, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
23$421.13$9.7K1,477Jun 9, 2026Jun 10, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
23$420.12$9.7K1,500Jun 8, 2026Jun 10, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
18$439.80$7.9K1,523May 22, 2026May 22, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
18$446.04$8.0K1,541May 21, 2026May 22, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
18$440.38$7.9K1,559May 20, 2026May 20, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
18$440.70$7.9K1,577May 19, 2026May 20, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
18$422.47$7.6K1,595May 18, 2026May 20, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
645$485.01$312.8K1,613Mar 9, 2026Mar 10, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
648$490.19$317.6K2,258Mar 6, 2026Mar 10, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
648$495.20$320.9K2,906Mar 5, 2026Mar 5, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
2,362$498.68$1.18M3,554Mar 4, 2026Mar 5, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
648$488.10$316.3K5,916Mar 3, 2026Mar 5, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
SVP & Chief Mfg and Supply Cha
4,155$503.51$2.09M6,564Feb 28, 2026Mar 2, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
SVP & Chief Mfg and Supply Cha
8,378——0Feb 28, 2026Mar 2, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
PURCHASE
SVP & Chief Mfg and Supply Cha
8,378——10,719Feb 28, 2026Mar 2, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
SVP & Chief Mfg and Supply Cha
435$503.51$219.0K2,341Feb 28, 2026Mar 2, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
SVP & Chief Mfg and Supply Cha
877——0Feb 28, 2026Mar 2, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
PURCHASE
SVP & Chief Mfg and Supply Cha
877——2,776Feb 28, 2026Mar 2, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
PURCHASEGRANT
Stock grant
2,793——8,378Feb 26, 2026Feb 27, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
SVP & Chief Mfg and Supply Cha
1,622——3,243Feb 26, 2026Feb 27, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
PURCHASEGRANT
Stock grant
4,928——4,928Feb 26, 2026Feb 27, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
PURCHASE
SVP & Chief Mfg and Supply Cha
1,622——2,214Feb 26, 2026Feb 27, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
PURCHASE
SVP & Chief Mfg and Supply Cha
973——2,382Feb 26, 2026Feb 27, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
SVP & Chief Mfg and Supply Cha
805$506.17$407.5K1,409Feb 26, 2026Feb 27, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
SVP & Chief Mfg and Supply Cha
483$506.17$244.5K1,899Feb 26, 2026Feb 27, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
SVP & Chief Mfg and Supply Cha
973——2,918Feb 26, 2026Feb 27, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
PURCHASE
SVP & Chief Mfg and Supply Cha
838——1,025Feb 10, 2026Feb 10, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
SVP & Chief Mfg and Supply Cha
433$492.84$213.4K592Feb 10, 2026Feb 10, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
SVP & Chief Mfg and Supply Cha
838——838Feb 10, 2026Feb 10, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
PURCHASEGRANT
Stock grant
2,702——2,702Jan 28, 2026Jan 30, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
PURCHASEGRANT
Stock grant
5,585——5,585Jan 28, 2026Jan 30, 2026 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
464$548.49$254.5K131Dec 15, 2025Dec 17, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
464$548.49$254.5K443Dec 15, 2025Dec 15, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
PURCHASE
SVP & Chief Mfg and Supply Cha
4,500$79.64$358.4K5,407Dec 12, 2025Dec 15, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
SVP & Chief Mfg and Supply Cha
4,500——0Dec 12, 2025Dec 15, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
4,500$547.36$2.46M907Dec 12, 2025Dec 15, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
312$547.36$170.8K595Dec 12, 2025Dec 17, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
216$563.11$121.6K907Jun 6, 2025Jun 6, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
215$560.70$120.6K1,123Jun 5, 2025Jun 6, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
215$552.07$118.7K1,338Jun 4, 2025Jun 4, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
215$550.68$118.4K1,553Jun 3, 2025Jun 4, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
215$549.06$118.0K1,768Jun 2, 2025Jun 4, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
20$563.81$11.3K1,983May 16, 2025May 16, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
22$560.00$12.3K2,003May 15, 2025May 16, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
22$563.00$12.4K2,025May 14, 2025May 14, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
22$561.67$12.4K2,047May 13, 2025May 14, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
22$551.97$12.1K2,069May 12, 2025May 14, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
489$533.18$260.7K2,091Mar 7, 2025Mar 7, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
492$558.95$275.0K2,580Mar 6, 2025Mar 6, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
492$554.17$272.7K3,072Mar 5, 2025Mar 6, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
492$563.69$277.3K3,564Mar 4, 2025Mar 6, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
492$573.78$282.3K4,056Mar 3, 2025Mar 3, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
SVP & Chief Mfg and Supply Cha
435$563.77$245.2K6,723Feb 28, 2025Mar 3, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
SVP & Chief Mfg and Supply Cha
2,175$563.77$1.23M4,548Feb 28, 2025Mar 3, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
SVP & Chief Mfg and Supply Cha
877——877Feb 28, 2025Mar 3, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
PURCHASE
SVP & Chief Mfg and Supply Cha
877——7,158Feb 28, 2025Mar 3, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
PURCHASEGRANT
Stock grant
4,385——6,281Feb 27, 2025Mar 3, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
SVP & Chief Mfg and Supply Cha
805$573.74$461.9K1,465Feb 26, 2025Feb 27, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
PURCHASE
SVP & Chief Mfg and Supply Cha
1,622——2,270Feb 26, 2025Feb 27, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
SVP & Chief Mfg and Supply Cha
1,622——4,865Feb 26, 2025Feb 27, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
PURCHASE
SVP & Chief Mfg and Supply Cha
855——2,320Feb 26, 2025Feb 27, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
PURCHASEGRANT
Stock grant
3,891——3,891Feb 26, 2025Feb 27, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
SVP & Chief Mfg and Supply Cha
424$573.74$243.3K1,896Feb 26, 2025Feb 27, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
SVP & Chief Mfg and Supply Cha
855——0Feb 26, 2025Feb 27, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
SVP & Chief Mfg and Supply Cha
838——1,676Feb 10, 2025Feb 10, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
SVP & Chief Mfg and Supply Cha
430$582.98$250.7K648Feb 10, 2025Feb 10, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
PURCHASE
SVP & Chief Mfg and Supply Cha
838——1,078Feb 10, 2025Feb 10, 2025 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
22$513.66$11.3K185Oct 28, 2024Oct 28, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
22$514.00$11.3K207Oct 25, 2024Oct 28, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
22$510.79$11.2K229Oct 24, 2024Oct 24, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
22$513.89$11.3K251Oct 23, 2024Oct 24, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
PURCHASE
SVP & Chief Mfg and Supply Cha
2,106$77.00$162.2K2,401Oct 22, 2024Oct 24, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
2,106$515.00$1.08M295Oct 22, 2024Oct 24, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
SVP & Chief Mfg and Supply Cha
2,106——0Oct 22, 2024Oct 24, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
22$515.00$11.3K273Oct 22, 2024Oct 24, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
63$396.19$25.0K295May 17, 2024May 17, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
175$398.28$69.7K358May 16, 2024May 17, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
175$387.22$67.8K533May 15, 2024May 15, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
175$380.85$66.6K708May 14, 2024May 15, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
175$389.16$68.1K883May 13, 2024May 15, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
196$390.16$76.5K1,058Mar 11, 2024Mar 11, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
196$392.02$76.8K1,254Mar 8, 2024Mar 11, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
196$393.30$77.1K1,450Mar 7, 2024Mar 7, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
196$386.76$75.8K1,646Mar 6, 2024Mar 7, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
196$400.00$78.4K1,842Mar 5, 2024Mar 7, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
SVP & Chief Mfg and Supply Cha
490$386.59$189.4K1,606Feb 29, 2024Feb 29, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
PURCHASE
SVP & Chief Mfg and Supply Cha
966——2,096Feb 29, 2024Feb 29, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
SVP & Chief Mfg and Supply Cha
966——0Feb 29, 2024Feb 29, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
PURCHASE
SVP & Chief Mfg and Supply Cha
877——2,483Feb 29, 2024Feb 29, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
SVP & Chief Mfg and Supply Cha
877——1,754Feb 29, 2024Feb 29, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
SVP & Chief Mfg and Supply Cha
445$386.59$172.0K2,038Feb 29, 2024Feb 29, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
PURCHASEGRANT
Stock grant
6,487——6,487Feb 26, 2024Feb 27, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
SVP & Chief Mfg and Supply Cha
434$389.77$169.2K1,130Feb 26, 2024Feb 27, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
SVP & Chief Mfg and Supply Cha
855——855Feb 26, 2024Feb 27, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
PURCHASE
SVP & Chief Mfg and Supply Cha
855——1,564Feb 26, 2024Feb 27, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
32$378.29$12.1K709Feb 16, 2024Feb 16, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
30$382.03$11.5K741Feb 15, 2024Feb 16, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
30$380.09$11.4K771Feb 14, 2024Feb 16, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
30$375.51$11.3K801Feb 13, 2024Feb 13, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
30$386.09$11.6K831Feb 12, 2024Feb 13, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
See Remarks
425$388.22$165.0K861Feb 10, 2024Feb 12, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
PURCHASE
See Remarks
838——1,286Feb 10, 2024Feb 12, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE
See Remarks
838——2,514Feb 10, 2024Feb 12, 2024 ↗View →
ISRG
INTUITIVE SURGICAL INC
SALE10b5-1
10b5-1 plan
39$378.41$14.8K448Feb 1, 2024Feb 5, 2024 ↗View →
Other insiders · ISRG
Loading peer insiders…
About this filer
CIK 0002010300
ROLE
SVP & Chief Mfg and Supply Cha
PRIMARY
ISRG
COMPANIES
1
ACTIVE SINCE
Feb 2024
MARKETPEEL · /INSIDER/0002010300DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

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